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<avb-designer-block data-id="26" class="avb-typography dsg-block-26">

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                <img class="dsg-block-26-image"
                    src="https://cdn.avbportal.com/magento-media/members-prosource/vste14-stereoland/blog/blog-polk-audio-legend-l800.jpg?w=600"
                    alt="Introducing the New Polk Audio Legend L800!" />
                
                <p class="avb-typography__paragraph dsg-block-26__paragraph">
                    We just got in the all new Polk Audio Legends series. Featuring many technologies that made Polk so great decades ago,
                    this brand new speaker lineup really blew our minds. The Legend L800 features dual tweeters mounted at a 15 degree angle
                    using the new SDA Pro technology, giving absolutely stellar imaging performance. The stereo separation on these is
                    really next&nbsp;level.
                </p>

                <p class="avb-typography__paragraph dsg-block-26__paragraph">
                    What really wowed us about these was the clean, but monstrously powerful bass response. Often times a speaker with
                    powerful bass suffers from a lack of quality in the highs, but their new Pinnacle tweeter (watch out, it’s sharp!) keeps
                    up by delivering crisp and well&#8209;balanced&nbsp;treble.
                </p>

                <p class="avb-typography__paragraph dsg-block-26__paragraph">
                    The Legend series is only available from select dealers, and Stereoland is the only dealer for these speakers in the
                    Twin Cities area. Watch us unbox them here, and come down to the store to check them&nbsp;out!
                </p>

            </div>
        </div>
    </div>
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Introducing the New Polk Audio Legend L800!

Home Theater Setup (Surround Sound Speaker Setup)

<avb-designer-block data-id="26" class="avb-typography dsg-block-26">

    <div class="avb-grid avb-grid--container">
        <div class="avb-grid__column avb-grid__column--small-12 avb-grid__column--marginBottom">
            <div class="avb-wrapper dsg-block-26__content">
                
                <img class="dsg-block-26-image"
                    src="https://cdn.avbportal.com/magento-media/members-prosource/vste14-stereoland/blog/blog-speakers-amps-together.jpg?w=600"
                    alt="A Guide to How Speakers and Amplifiers Work Together and How to Match Them Correctly" />
                
                <p class="avb-typography__paragraph dsg-block-26__paragraph">
                    The job of a PA system is to take a weak audio signal such as that produced by a vocal, convert it into an electrical
                    signal, increase the size of this signal and convert it back into sound energy at a significantly greater volume. A PA
                    system is made up of a number of components of which it is the job of the amplifier to increase the size of the audio
                    signal and the speakers to then convert this signal back from electrical energy to sound energy. If the amplifier and
                    speakers used in a particular PA system are not properly matched in terms of amplifier power output and speaker power
                    rating then speaker damage can occur resulting in potentially expensive repair bills or even the requirement for
                    replacement speakers. This article will discuss the basic theory behind speaker and amplifier ratings, the reasons why
                    speaker damage occurs and how to match an amplifier or speakers to produce the best possible sound quality and lowest
                    possible chance of speaker&nbsp;damage.
                </p>

                <h2 class="avb-typography__heading avb-typography__heading--title">
                    <span
                        class="avb-typography__heading-line avb-typography__heading-line--marginBottom dsg-block-26__heading-line-1">
                        How Amplifiers and Speakers Work&nbsp;Together
                    </span>
                    
                </h2>

                <p class="avb-typography__paragraph dsg-block-26__paragraph">
                    Audio signal amplifiers take a small electrical signal and by using a series of transistors ultimately produces an
                    electrical signal that recreates the voltage fluctuations of the original but of a much higher power. Speakers work on
                    the electric motor principle whereby the electrical pulses from the amplifier are channelled through a coil of wire
                    creating magnetic energy in the form of an electromagnet. This coil is then attracted or repelled from a second fixed
                    magnet creating vibrations in the paper cone to which it is fixed which in turn transfers energy into the surrounding
                    air molecules resulting in&nbsp;sound.
                </p>

                <h2 class="avb-typography__heading avb-typography__heading--title">
                    <span class="avb-typography__heading-line avb-typography__heading-line--marginBottom dsg-block-26__heading-line-1">
                        How Speakers and Amplifiers Are&nbsp;Rated
                    </span>
                    
                </h2>
                
                <p class="avb-typography__paragraph dsg-block-26__paragraph">
                    Both amplifiers and speakers are given ratings in terms of the power they are capable of supplying or their ability to
                    cope with the power supplied to them. Power is measured in Watts (W) and is the rate at which energy (measured in
                    Joules) is converted from one form to another. For example 1 Watt of power is the equivalent of 1 Joule of energy being
                    converted per second or 10 Watts of power is the equivalent of 10 joules of energy being converted per&nbsp;second.
                </p>
                
                <p class="avb-typography__paragraph dsg-block-26__paragraph">
                    There are a number of methods in use to describe the power of an electrical signal not all of which are best used to
                    rate the power of amplifiers and&nbsp;speakers:
                </p>
                
                <p class="avb-typography__paragraph dsg-block-26__paragraph">
                    <span class="dsg-tools-fw-bold">Instantaneous Power:</span> This refers to the power being used at any particular instant during operation but as the power
                    used to move the speaker cone in the complex manner required is continually and rapidly varying this is not a useful
                    measure for describing the capability of an amplifier or speaker.
                </p>
                
                <p class="avb-typography__paragraph dsg-block-26__paragraph">
                    <span class="dsg-tools-fw-bold">Peak Power:</span> The maximum amount of instantaneous power present at the highest level during the signal. For amplifiers peak power is
                    useful for describing the maximum instantaneous limit of its capability for sounds such as drumbeats and bass notes.
                    Amplifier peak power is limited by the available power supply and if the input level is increased beyond a point where
                    the amplifier reaches the limits of its power supply a form of signal distortion known as clipping occurs. For speakers
                    the peak power occurs at the point where the speaker cone reaches its fore or rearmost point beyond which damage may&nbsp;occur.
                </p>

                <p class="avb-typography__paragraph dsg-block-26__paragraph">
                    <span class="dsg-tools-fw-bold">RMS or Average Power:</span> This is the Maximum Continuous Average power output capability of an essentially undistorted signal to a specified load
                    impedance (in this case the load is the speaker) and is the most consistent method of comparing power levels between
                    amplifiers and&nbsp;speakers.
                </p>

                <p class="avb-typography__paragraph dsg-block-26__paragraph">
                    <span class="dsg-tools-fw-bold">Music or Programme Power:</span> Often used in speaker ratings these terms were conceived by manufacturers as speakers are very rarely used to produce
                    pure tones (for which average power is measured) instead being used to reproduce sounds of rapidly changing power
                    distribution. Music or programme power is said to be approximately twice the equivalent average&nbsp;power.
                </p>

                <h2 class="avb-typography__heading avb-typography__heading--title">
                    <span class="avb-typography__heading-line avb-typography__heading-line--marginBottom dsg-block-26__heading-line-1">
                        Why Speakers&nbsp;Fail
                    </span>
                    
                </h2>
                
                <p class="avb-typography__paragraph dsg-block-26__paragraph">
                    Speakers most commonly fail due to either excessive power or a distorted signal being supplied by the amplifier. Heat is
                    a by-product of the motor effect caused by sending an electrical signal through the speaker coil and if excessive power
                    is sent to a speaker the heat generated can damage or destroy the coil. Alternatively if an underpowered amplifier is
                    driven to the point beyond which it is capable of delivering, this “clipped” signal produces excessive high frequencies
                    which can burn up tweeters or&nbsp;horns.
                </p>

                <h2 class="avb-typography__heading avb-typography__heading--title">
                    <span class="avb-typography__heading-line avb-typography__heading-line--marginBottom dsg-block-26__heading-line-1">
                        How to Match Amplifiers and&nbsp;Speakers
                    </span>
                    
                </h2>

                <p class="avb-typography__paragraph dsg-block-26__paragraph">
                    When putting together a PA system you may have to match amplifiers and speakers rated with different methods (e.g. the
                    amplifier is rated by RMS Power and the Speakers are rated with Music Power) and as such you may be unsure how these two
                    measurements relate to each other and if the amp and speakers are correctly&nbsp;matched.
                </p>

                <p class="avb-typography__paragraph dsg-block-26__paragraph">
                    If both the amplifiers and speakers are rated in terms of RMS power and they are not likely to be overdriven you can
                    compare them directly matching an amplifier of 100 Watts per channel with speakers rated at 100 Watts RMS. If however
                    the system is to be used for dance music or heavy metal where the amplifier is likely to be overdriven resulting in
                    clipping, a speaker system rated at approximately twice the amplifier RMS is&nbsp;recommended.
                </p>

                <p class="avb-typography__paragraph dsg-block-26__paragraph">
                    If your speakers are rated in terms of Music or Programme Power remember that this is approximately twice the average or
                    RMS power and as such for low level applications such as speech the speakers should be double the amplifier rating (e.g.
                    100 W amp to power 200 W speakers). For applications such as live or dance music where clipping may occur speakers of
                    Programme Power more than twice the amp RMS Power will be required and potentially up to three times more for high power&nbsp;applications.
                </p>

                <p class="avb-typography__paragraph dsg-block-26__paragraph">
                    Overall your PA system should be designed so that the amplifier is powerful enough so as to never be driven to clipping
                    and the speakers sufficiently powerful so as to cater for the continuous power produced by the&nbsp;amp.
                </p>

                <p class="avb-typography__paragraph dsg-block-26__paragraph dsg-block-26__paragraph-footnote">
                    Ian Hammond is an audio and live music enthusiast who writes for FRASP PA hire Nottingham. Ian has worked in the live
                    music industry installing and engineering live sound systems for a variety of&nbsp;bands.
                </p>


            </div>
        </div>
    </div>
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A Guide to How Speakers and Amplifiers Work Together and How to Match Them Correctly

<avb-designer-block data-id="26" class="avb-typography dsg-block-26">

    <div class="avb-grid avb-grid--container">
        <div class="avb-grid__column avb-grid__column--small-12 avb-grid__column--marginBottom">
            <div class="avb-wrapper dsg-block-26__content">
                
                <img class="dsg-block-26-image"
                    src="https://cdn.avbportal.com/magento-media/members-prosource/vste14-stereoland/blog/blog-buying-guide.jpg?w=600"
                    alt="Buying Guide for Speakers" />
                
                <p class="avb-typography__paragraph dsg-block-26__paragraph">
                    The most sophisticated, high-tech surround sound system is nothing without quality speakers, and this article will
                    define a few key terms and help you understand everything you need to know about your options, including in-wall
                    speakers, in-ceiling speakers, home theater speakers and surround sound&nbsp;speakers.
                </p>

                <h2 class="avb-typography__heading avb-typography__heading--title">
                    <span
                        class="avb-typography__heading-line avb-typography__heading-line--marginBottom dsg-block-26__heading-line-1">
                        So What Is a Speaker,&nbsp;Exactly?
                    </span>
                    
                </h2>

                <p class="avb-typography__paragraph dsg-block-26__paragraph">
                    A speaker is basically a translation machine; it translates the electrical signal from a record, CD or DVD into physical
                    vibrations to create sound waves. A speaker consists of drivers, a diaphragm (also called a dome or cone), a spider, a
                    voice coil, a surround or suspension, a basket and a spider. Speakers also contain a cross-over, which is what separates
                    the sound into various frequencies such as high, low and sometimes mid-range. There are three different types of basic
                    speaker drivers: woofers, tweeters and mid&#8209;range&nbsp;drivers.
                </p>

                
                <p class="avb-typography__paragraph dsg-block-26__paragraph">
                    As mentioned earlier, all speakers contain a voice coil, but you will find that some speakers feature dual voice coils.
                    The main advantage that the dual voice coil speaker offers over a single coil is wiring flexibility, and they do tend to
                    be a little more&nbsp;expensive.
                </p>
                
                <p class="avb-typography__paragraph dsg-block-26__paragraph">
                    A few other terms you are likely to encounter in your speaker search, whether you’re looking at in-ceiling, in-wall,
                    home theater or surround sound speakers, are two-way versus three- or even four-way speakers, dual tweeters, impedance,
                    resistance, sensitivity, power handling, and frequency&nbsp;response.
                </p>
                
                <p class="avb-typography__paragraph dsg-block-26__paragraph">
                    Two-way speakers generally include a tweeter and a woofer, and often work well when combined with a subwoofer to handle
                    the lower frequencies. Three-way speakers generally contain a tweeter, mid-range and woofer. Four-way speakers contain a
                    tweeter, mid-range, a woofer and a dedicated subwoofer. Which style will work best for you really depends on your
                    budget, space and overall&nbsp;system.
                </p>
                
                <p class="avb-typography__paragraph dsg-block-26__paragraph">
                    Whether you’re considering in-wall, in-ceiling, home theater or surround sound speakers, a few other factors you will
                    want to consider are frequency response, power handling, and sensitivity. Frequency response refers to the range of
                    Hertz (or Hz, which is a unit of frequency) that a speaker can reproduce. For example, a 50-20,000 Hz speaker has a
                    greater range than a 65-20,000 Hz&nbsp;speaker.
                </p>

                <p class="avb-typography__paragraph dsg-block-26__paragraph">
                    Power handling refers to watts and helps you determine what kind of receiver would be best suited to your speakers and
                    vice-versa. Sensitivity, also commonly referred to as efficiency, refers to how effectively the speaker uses the power
                    it receives from the receiver. Higher sensitivity means the speaker will produce more volume without taxing your&nbsp;receiver.
                </p>

                <p class="avb-typography__paragraph dsg-block-26__paragraph">
                    Home theater systems generally consist of a center channel speaker, which delivers much of the dialogue; front left and
                    right speakers, which handle most of the special effects; and surround sound speakers. Surround sound speakers typically
                    provide the ambient sounds you hear while watching a movie or TV show, such as falling raindrops, gravel crunching
                    underfoot, or the rustling of leaves. And lastly, most systems also include a subwoofer to catch and emphasize the lower&nbsp;frequencies.
                </p>
                
                <p class="avb-typography__paragraph dsg-block-26__paragraph">
                    All of these work together to create a dynamic theater-like sound experience. Bookshelf and satellite speakers are a
                    great choice when you’re looking for space efficiency in your home theater system. You might also consider in-wall or
                    in-ceiling speakers, depending on how you intend to use your space and your personal aesthetic. The grills on the fronts
                    of both in-ceiling and in-wall speakers can be painted to match your wall color, allowing them to blend right into your&nbsp;decor.
                </p>

                <p class="avb-typography__paragraph dsg-block-26__paragraph">
                    The design of the speaker’s enclosure impacts how all these elements work together to create sound. Common enclosure
                    designs include bass reflex, passive radiator and dipole designs. If you’re working with an audio professional, he or
                    she will understand exactly how these elements affect the sound experience and will help you select the best speakers
                    for your space and&nbsp;use.
                </p>

                <p class="avb-typography__paragraph dsg-block-26__paragraph">
                    When choosing the best in-ceiling, in-wall, surround sound or home theater speakers for your specific needs, you’ll want
                    to consider the shape and make-up of the room where the speakers will be installed, and how the room will be used. The
                    shape and size of each individual speaker will impact the overall listening experience. Different shapes of speakers
                    will project sound in different ways, for example, and it’s important to select a speaker shape that is appropriate for
                    the room where it will be&nbsp;installed.
                </p>

                <p class="avb-typography__paragraph dsg-block-26__paragraph">
                    With so many quality brands of speakers on the market today, finding the perfect sound solution that fits both your
                    budget and your lifestyle is absolutely possible, whether you prefer to do your homework yourself or hire a professional
                    to walk you through the process. Working with a knowledgeable audio professional who will evaluate your needs and help
                    you select the right system for you means no guesswork on your part, and helps ensure you get what you’re looking for
                    the first time around. Either way, you now have a basic understanding of speaker terminology with which to begin your&nbsp;search.
                </p>

                <p class="avb-typography__paragraph dsg-block-26__paragraph dsg-block-26__paragraph-footnote">
                    Dynamic Sound Systems provides the newest and latest products to meet the growing demand for high quality equipment.
                    Please feel free to browse our site where we have a full pictorial and informational guides on all of our products. We
                    look forward to working with you in your quest for the ultimate sound&nbsp;system.
                </p>


            </div>
        </div>
    </div>
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Buying Guide for Speakers

<avb-designer-block data-id="26" class="avb-typography dsg-block-26">

    <div class="avb-grid avb-grid--container">
        <div class="avb-grid__column avb-grid__column--small-12 avb-grid__column--marginBottom">
            <div class="avb-wrapper dsg-block-26__content">
                
                <img class="dsg-block-26-image"
                    src="https://cdn.avbportal.com/magento-media/members-prosource/vste14-stereoland/blog/blog-multiple-speakers.jpg?w=600"
                    alt="How To Use Multiple Speakers On One Home Theater Or Stereo Amplifier" />
                
                <p class="avb-typography__paragraph dsg-block-26__paragraph">
                    This is ultimately easy, but before explaining the process I feel it is necessary to provide a warning. Multiple sets of
                    speakers usually can not be hooked directly to a standard audio amplifier without some sort of impedance matching
                    device. This is in reference to those persons whom might want to run speakers in several rooms at the same time
                    (distributed audio). If several sets of speakers are run from one set of speaker terminals the amplifier will usually
                    overheat and shut down, and may blow the output stage (see footnote 1). These remarks do not apply to PA style
                    amplifiers with 25 or 70 volt outputs, which require special speakers with&nbsp;transformers.
                </p>

                <p class="avb-typography__paragraph dsg-block-26__paragraph">
                    The correct solution is to use either an impedance matching speaker selector with the protection enabled, or use
                    impedance matching in wall volume controls. Notice the underline in the sentence above. This is because most speaker
                    selectors are made with a dangerous feature: a button, right in front, to disable the protection. If the switch was in
                    back to prevent accidental deactivation of the speaker protection it would be much better. If the protection is
                    accidentally switched off while running multiple pairs of speakers the amplifier will shut down, may blow output fuses,
                    and very well may damage the output stage of the amplifier. There are really only 2 reasons to turn this switch off, the
                    most relevant being that impedance matching volume controls are being used on ALL pairs of speakers. The other reason
                    would be if only one pair of speakers are being run, making impedance matching unnecessary. In this event, though,
                    leaving the protection switched in will make only a very small difference to the sound, so why not leave it&nbsp;on?
                </p>

                <p class="avb-typography__paragraph dsg-block-26__paragraph">
                    Remember it this way: only put one speaker per pair of terminals (usually red and black) on the amplifier. Do not try to
                    use a surround amp to feed several rooms with one room on the center, one room on the rear surrounds etc. This is due to
                    the way a surround receiver distributes the sound as you may end up with only the voice in one room and only the music
                    in another! The correct hookup for a surround receiver puts surround sound in the main room and sound from the left and
                    right main speakers is distributed. My recommendation for hooking up a surround receiver is as follows. Run the speaker
                    selector from the front left and front right outputs on the amplifier. Hook your front left & right speakers to the
                    first speaker switch on the speaker selector. You will need to re-balance your surround system by running the pink noise
                    test as the speaker selector will decrease the output to the left and right speakers by a small amount. This allows
                    running the main speakers & the other speakers connected to the speaker selector without one set being louder than the
                    others. If your speaker selector has volume controls, you need to make sure when you use your surround system for movies
                    the volume control is at the same setting it was when doing the pink noise test. You may hook the speaker selector to
                    the ‘b’ speaker switch on the amplifier if speaker volume balance between your main left & right speakers and the rest
                    of the speakers is not an&nbsp;issue.
                </p>

                <p class="avb-typography__paragraph dsg-block-26__paragraph">
                    Another variation is amplifiers with a direct speaker output for zone 2, 3, etc. These are set up to drive 1 pair of
                    speakers, and must be used with impedance matching if more pairs are to be used. The zone outputs allow a second (or
                    third etc) source, for example CD in one room and radio in&nbsp;another.
                </p>

                <p class="avb-typography__paragraph dsg-block-26__paragraph">
                    An impedance matching speaker selector provides multiple outputs from one input, and protects your amplifier from
                    damage. Speaker selectors come with 4-12 outputs. As long as your amp has enough power, you can push as many sets of
                    speakers as you want. Simply connect the speaker selector to your ‘A’ (or ‘B’) outputs and the rest of your speakers on
                    the speaker selector. You can purchase speaker selectors with volume controls for each individual speaker. Another
                    option is in wall impedance matching volume controls, which require no speaker selector. Most of these are set with
                    jumpers at install time, providing the correct matching. If you want to run more pairs of speakers than the speaker
                    selectors or volume controls are made for (usually 12 pairs max. depending on the hardware) you probably want a second
                    amplifier to run the second set of volume controls (or speaker selector)&nbsp;from.
                </p>


                <h2 class="avb-typography__heading avb-typography__heading--title">
                    <span
                        class="avb-typography__heading-line avb-typography__heading-line--marginBottom dsg-block-26__heading-line-1">
                        So, what is impedance and impedance matching? (Warning: semi technical material&nbsp;ahead)
                    </span>
                    
                </h2>

                <p class="avb-typography__paragraph dsg-block-26__paragraph">
                    The music signal to your speakers is called alternating current (or AC), because it varies polarity and voltage. This is
                    in comparison to a battery, for example which produces a steady, or direct current. You may picture current as the
                    amount of water flowing in a pipe (the wire) and voltage as the water pressure. Alternating current can be imagined as a
                    flow that reverses direction and direct current as a steady flow in one direction. The analogy is not exact but is close
                    enough to get a picture of what is happening. Standard house current in the US reverses direction (polarity) at an
                    interval (or frequency) of 60 times per second, measures as 60 Hz (Hertz). If you visit our site you can see this
                    article with explanatory diagrams&nbsp;included.
                </p>

                <p class="avb-typography__paragraph dsg-block-26__paragraph">
                    Your speakers have a certain amount of resistance to current. Imagine the resistance as a constriction in the pipe,
                    limiting the flow. They have a DC resistance, termed the voice coil resistance, and resistance to AC is called
                    impedance. Resistance and impedance values are measured in Ohms. Impedance is a complex sum of dc resistances, plus the
                    resistance to various AC frequencies caused by capacitance and inductance (normal properties of electrical and
                    electronic devices). It is usually specified for speakers as nominal impedance, and is referenced to particular
                    frequencies . However, Just think of it as resistance to AC for practical purposes. This is usually rated at either 8 or
                    4 Ohms. Most home amplifiers prefer an 8 ohm impedance. Each time another speaker is added in parallel the impedance is
                    reduced. Visualize several pipes connected together to the same pump, obviously the flow from the pump increases (up to
                    the limit of the pumps capability). The amplifier is the pump. Two 8 ohm speakers reduce the impedance to 4 ohms, four 8
                    ohm speakers reduce the impedance to 2 ohms, and so&nbsp;forth.
                </p>

                <p class="avb-typography__paragraph dsg-block-26__paragraph">
                    An amplifier expects (most require) a certain amount of resistance to current flow. The lower the impedance, the more
                    current flows through the output stage of a typical amplifier. This usually flows directly through a transistor (or
                    other amplifying device) and damages the transistor or protective resistors in the output stage. If you get lucky it
                    only blows an output stage fuse. The moral of the story is always use an impedance matching speaker selector, (or volume
                    control) and your amplifier will always see a safe impedance&nbsp;load.
                </p>

                <p class="avb-typography__paragraph dsg-block-26__paragraph dsg-block-26__paragraph-footnote">
                    <span class="dsg-tools-fw-bold">1 (footnote):&nbsp;</span> Why does the amplifier output stage blow? This is due to the nature of a typical amplifier. It must first be clear that
                    an amplifier does not actually make the input signal bigger. What it does is recreate a larger (higher current and
                    voltage) copy of the original signal, and puts that out to the speakers. It makes this copy from the power supply
                    voltage, which is derived from the AC from the wall outlet. This voltage must be first converted to DC. If not done
                    efficiently the amplifier will hum (because it doesn’t know the words). The amplifier controls the power supply voltage
                    by a sort of valve that controls the output voltage and current. These valves (transistors are usual, but may be
                    integrated circuits, vacuum tubes, or other devices) are controlled by the input signal. In response to the input
                    signal, the amplifying device allows more or less current (and/or voltage) flow through it to the output in an exact
                    (hopefully) replica of the input signal. In order to have the majority of speakers work well with an amplifier, it needs
                    a low output impedance (see the text above for a discussion of impedance). If the output impedance is too high, the
                    frequency response will vary with the impedance of the speakers. This means that some sounds will be accented and some
                    diminished from the levels they should be, and this effect will be different with every different set of speakers. In
                    practical terms this means that, with the most commonly used circuit design, when the transistor (or other device) is
                    fully on, it needs to pass almost all the power supply current available through it. This is the tricky part. The
                    current flow is determined largely by the impedance of the speakers connected. Most amplifiers are designed to work with
                    8 ohm speakers, and may work into 4 ohms reasonably well. Some so called high current amplifiers may work well into 1
                    ohm. In other words, the amplifiers are designed that when the output transistors are passing the full current and
                    voltage they can take, they are working into an expected value of impedance. When the impedance (ac resistance) of the
                    connected speakers get too low, more current is allowed to pass through the amplifying device than it can take. It
                    either burns up, or blows a fuse, or burns up emitter resistors, or some other form of damage occurs. Fusing often does
                    not react fast enough to save the circuit. So why not design all systems to work into low impedances? Without going too
                    far into it, this can result in huge cost increases. For example, for theoretically ideal performance into most of
                    today’s speaker systems, an amp should double it’s power for every halving of impedance. So for 100 watts into 8 ohms,
                    it must put out 200 into 4 ohms, 400 into 2 ohms, and 800 into one ohm(Remember,this is theoretically ideal, and almost
                    no amplifiers can accomplish an actual doubling of power for a halving of load impedance). Most decent amplifiers today
                    have significantly less than .5 ohms output impedance, so as to perform well with speakers that may drop to low
                    impedances at some frequencies. Our theoretical amp, if made to operate into a .5 ohm load would need to have the
                    capability to put out 1600 watts per channel without damaging anything (in the amplifier!). As you can imagine the cost
                    of a good quality amplifier with this kind of capability is substantial. Now think about this: The average user of this
                    massive amp, with 8 ohm speakers, will only see an average output wattage of 100 watts RMS (RMS stands for Root Mean
                    Square, and is basically an average power measurement which is approximately 70 percent of peak power). For most users
                    this would price the amp out of reach. Some amps are built to this type of standard, for the reason that there are
                    speakers that drop as low as one ohm that sound much better if driven by a very high current amplifier. One such example
                    is the Krell Evolution One, which is a monoblock. This means you need two for stereo. They will only set you back about
                    $25,000 dollars each. For those who might think I am making this up, use Google to find prices on Krell&nbsp;monoblocks.
                </p>

                <p class="avb-typography__paragraph dsg-block-26__paragraph dsg-block-26__paragraph-footnote">
                    Copyright © 2006-2008 Seafawn Enterprises, LLC. Any information on this page may be freely copied, as long as the link below is included.
                </p>

                <avb-link class="avb-link dsg-block-26-link" data-href="http://www.smartbuyspeakers.com/" target="_blank">
                    Buy Home Theater Speakers &amp;&nbsp;Accessories [https://www.smartbuyspeakers.com]
                </avb-link>


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How To Use Multiple Speakers On One Home Theater Or Stereo Amplifier

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Introducing the New Polk Audio Legend L800!

Home Theater Setup (Surround Sound Speaker Setup)

A Guide to How Speakers and Amplifiers Work Together and How to Match Them Correctly

Buying Guide for Speakers

How To Use Multiple Speakers On One Home Theater Or Stereo Amplifier

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