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  1. Sonos - Amp 250W 2.1-Ch Amplifier - Black - Front_Zoom
    Sponsored
    Model: AMPG1US1BLK
    SKU: 6312857
    Your price for this item is $649.99
  2. Sonos - Amp 250W 2.1-Ch Amplifier - Black - Front_Zoom
    Model: AMPG1US1BLK
    SKU: 6312857
    Your price for this item is $649.99
  3. Russound - P75 2-Ch. Amplifier - Black - Front_Standard
    Model: 2800-536267
    SKU: 7263263
    Your price for this item is $147.99
    Save $72.99
    The previous price was $220.98
  4. Sonance - Sonamp 600W 12.0-Ch. Digital Power Amplifier - Black - Front_Standard
    Model: SONAMP 12-50
    SKU: 5683420
    Your price for this item is $1,349.98
  5. PYLE - 20W 2-Ch. Power Amplifier - Black - Front_Zoom
    Model: PTA2
    SKU: 4456038
    Your price for this item is $55.99
    Save $58
    The previous price was $113.99
  6. Pro-Ject - Phono Box E Preamplifier - Black - Front_Zoom
    Model: BOX - PHONO BOX E BLACK
    SKU: 5714788
    Your price for this item is $59.98
  7. Model: A-S501BL
    SKU: 5097014
    Your price for this item is $549.98
  8. Russound - Local Source Power Amplifier - Black - Front_Standard
    Model: D250LS
    SKU: 3025901
    Your price for this item is $265.99
    Save $232.99
    The previous price was $498.98
  9. Gemini - Pro Audio 250W 2.0 Power Amplifier - Black - Front_Zoom
    Model: XGA-2000
    SKU: 4941803
    Your price for this item is $149.99
  10. Arcam - HDA 170W 2.0-Ch. Integrated Amplifier - Gray - Front_Zoom
    Model: SA10
    SKU: 6337413
    Your price for this item is $799.98
    Save $200
    The previous price was $999.98
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  12. Sonance - Sonamp 300W 2.0-Ch. DSP Power Amplifier - Black - Front_Zoom
    Model: SONAMP DSP 2-150 MKII
    SKU: 6302322
    Your price for this item is $974.98
  13. Mark Levinson - No585.5 Fully Discrete Integrated Amplifier with Class A Pure Phono Stage - Black - Front_Zoom
    Model: MLNO585P5AM
    SKU: 6441047
    Your price for this item is $16,000.00
  14. Pro-Ject - Phono Box MM Preamplifier - Black - Front_Zoom
    Model: BOX - PHONO BOX MM DC BLACK
    SKU: 5704709
    Your price for this item is $79.98
  15. Rotel - 120W 2.0-Ch. Amplifier - Black - Front_Zoom
    Color:
    Black
    Model: A-12 BLACK
    SKU: 5590306
    Your price for this item is $999.98
  16. Marantz - AV7706 Surround Pre-Amplifier - Black - Front_Zoom
    Model: AV7706
    SKU: 6431230
    Your price for this item is $2,499.98
  17. Pro-Ject - Amp Box 70W 2.0-Ch. Power Amplifier - Black - Angle_Zoom
    Model: BOX - AMP BOX S BLACK
    SKU: 5704807
    Your price for this item is $299.98
  18. NAD - D 3020 Hybrid Digital Amplifier - Black - Front_Standard
    Model: D3020
    SKU: 2945294
    Your price for this item is $449.99
  19. Arcam - HDA 760W 2.0-Ch. Power Amplifier - Gray - Front_Zoom
    Model: ARCPA240AM
    SKU: 6391969
    Your price for this item is $2,499.98
  20. Yamaha - A-S801 320W 2-Ch. Integrated Amplifier - Black - Front_Zoom
    Model: A-S801BL
    SKU: 5097041
    Your price for this item is $899.98
  21. Gemini - Pro Audio 400W 2.0 Power Amplifier - Black - Front_Zoom
    Model: XGA-3000
    SKU: 4941802
    Your price for this item is $159.99
  22. NAD - PP 4 Digital Phono/USB Preamplifier - Black - Front_Standard
    Model: PP-4
    SKU: 2945212
    Your price for this item is $199.99
  23. Arcam - HDA 980W 7.0-Ch. Power Amplifier - Black - Front_Zoom
    Model: ARCPA720AM
    SKU: 6391973
    Your price for this item is $2,999.98
  24. Yamaha - A-S701 320W 2-Ch. Integrated Amplifier - Black - Front_Standard
    Model: A-S701BL
    SKU: 5097087
    Your price for this item is $799.98
  25. Classé - Delta 1000W 2.0-Ch. Power Amplifier - Black - Front_Zoom
    Model: DELTASTEREOUS
    SKU: 6398105
    Your price for this item is $12,999.98
  26. Sonance - Multichannel Power Amplifier - Black - Front_Zoom
    Model: SONAMP 2-100
    SKU: 3849012
    Your price for this item is $754.98

Buying an amplifier.

How to pick the best home stereo amplifier.

First the basics: What does an amplifier do, and do you really need one? In a nutshell, a stereo amplifier receives a low voltage signal from the source equipment — a CD player, Blu-ray DVD player or turntable, for instance — and enlarges or amplifies it, sending the signal on its way to powering your speakers. The functions of an audio amplifier can be split into two sectors or components. The first component is known as a preamplifier. It connects all the source devices, can be used to switch between those sources, processes audio or video signals, and sends it all to the second component: the power amplifier. A power amplifier does the heavy lifting, increasing the amplitude of the signal to drive the loads of your speakers. You can select these components as separate units. Or you can get them together in an integrated amplifier, which is a simpler, space-saving option. It also eliminates the necessity of matching the technical specs of the two components so they can work efficiently in tandem.

Another factor that should be considered when you're deciding which speaker amp is the best for you is the class of amplifier. The most common classes are A, AB and D class. Class designations measure how the amplifier handles the input signal to output signal path, factoring in power, efficiency and fidelity, to identify each class of amplifier's performance and characteristics. These designations get complicated fast, dealing with conduction angles, input cycles, sinusoidal wave conductions and more. But in a nutshell, a Class A amplifier gives you the best sound fidelity. But it is the least efficient of the bunch because it’s always on. A class A amplifier provides excellent sound reproduction, especially at low power, but this is at the cost of more energy used and more heat expended. This means adequate ventilation is mandatory. A Class AB amplifier maintains the sound excellence of a class A amplifier, but it adds more efficiency to the process. This makes it a popular choice for home theater and car stereos. A Class D amplifier is the most efficient amplifier type. It's often used in professional PA and car audio systems, where fidelity is of secondary importance to size, weight and heat dissipation.

Adding a new sound amplifier to your home audio system.

You prefer your volume loud. Your stereo is in a big room. Your speakers require a lot of power to drive. You love your bass response. These are all good reasons to add a sound amplifier to your system, even if you already have a receiver. As mentioned, amplifiers are capable of creating significant heat, so you shouldn't cram yours into a small, tight place. Plan on at least 3 inches of clearance above, plus space on the sides and back, to allow proper ventilation and to keep it from overheating. You'll also need room for the connections, the speaker wire and audio cables required to get everything hooked up. If you'd like, you can enlist Geek Squad® help for your home audio setup, which includes connecting your devices and setting up your speakers — all with optimal functionality and a professional look.

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