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AB Class Live Power Amplifiers
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Gemini XGA-5000 Power Amplifier
Product Price
$249.95
$219.96
SkuInfo [skuId=site1sku582001000000000, productId=site1prod582001, linkUrl=/pro-audio/behringer-ep2000-europower-power-amp, imageId=EUROPOWER-EP2000-Power-Amplifier/582001000000000, displayName=Behringer EUROPOWER EP2000 Power Amplifier, description=The EP2000 EUROPOWER power amp from Behringer delivers up to 2 x 1,000 watts at 2Î , 2 x 750W at 4Î , and..., brandName=Behringer, totalReviews=19, overallRating=9, priceVisibility=1, graphicalSticker=null, allUsed=false, onsale=false, lowPrice=349.0, highPrice=349.0, startingRestockPrice=null, restockItemCount=0, startingUsedPrice=307.12, usedItemCount=1, restockLinkURL=null, maxSaving=null, maxSavingPercent=null, maxSavingMSRP=null, externalInfo={}, productSeoUrl=/pro-audio/behringer-ep2000-europower-power-amp, productVisibilityMSRP =3, storeName=null, storeId=null]
Behringer EUROPOWER EP2000 Power Amplifier
Product Price
$349.00
$307.12
Buckle in, class: it takes a bit of an amp history lesson to get a good feel for where AB-class live power amplifiers fit into the pro audio landscape. It all started with the simplest and earliest style, which many pros still consider the best-sounding: A-class amps. Their circuits are based on a single transistor, and that creates a special challenge. In order to get the speaker to sit at rest when there's no voltage going into the amp, it needs to bias its transistor, which means it's using power all the time - even when it's silent! A-class amplifiers have the lowest efficiency of all types, with as much as three-quarters of the power they draw being lost as heat.
To create an amp that wouldn't bake itself from the inside out, engineers developed a two-transistor design that became the B-class amplifier. It uses one transistor for positive voltages (the peaks of the soundwave) and a second one for negative (the
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