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  1. Definitive Technology - Descend DN10 10" Sub, 3XR Architecture, 500W Peak Class D Amplifier, (2) 10" Bass Radiators - Black - Front_Zoom
    Color:
    Black
    Model: Descend DN10
    SKU: 6467273
    Your price for this item is $749.98
    Save $50
    The previous price was $799.98
  2. Marantz - 700W 5.0-Ch. Power Amplifier - Black - Front_Zoom
    Model: MM7055
    SKU: 2166035
    Your price for this item is $1,399.99
  3. Sonance - Sonamp 600W 12.0-Ch. Digital Power Amplifier (Each) - Black - Front_Zoom
    Model: SONAMP 12-50
    SKU: 5683420
    Your price for this item is $1,499.98
  4. Sonos - Amp 250W 2.1-Ch Amplifier - Black - Front_Zoom
    Model: AMPG1US1BLK
    SKU: 6312857
    Your price for this item is $699.99
  5. Marantz - 13.2 Channel Pre-Amp, Dolby Atmos, DTS, IMAX Enhanced & Auro-3D, Built-In HEOS, Amazon Alexa - Black - Front_Zoom
    Model: AV8805A
    SKU: 6464982
    Your price for this item is $4,999.98
  6. Arcam - HDA 760W 2.0-Ch. Power Amplifier - Gray - Front_Zoom
    Model: ARCPA240AM
    SKU: 6391969
    Your price for this item is $2,750.00
  7. gemini XGA-2000 Professional Power Amplifier - Black - Black - Front_Zoom
    Model: XGA-2000
    SKU: 4941803
    Your price for this item is $289.99
  8. PYLE - 20W 2-Ch. Power Amplifier - Black - Front_Zoom
    Model: PTA2
    SKU: 4456038
    Your price for this item is $113.99
  9. Pro-Ject - 74W 2.0-Ch. Amplifier - Black - Angle_Zoom
    Model: BOX - MAIA-BLACK
    SKU: 5706158
    Your price for this item is $499.98
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  11. Rotel - 120W 2.0-Ch. Amplifier - Black - Front_Zoom
    Model: A-12 BLACK
    SKU: 5590306
    Your price for this item is $999.98
  12. Phoenix Gold - MX 800W Monoblock Class D Sub Compact Amplifier - Black - Front_Zoom
    Model: MX800.1
    SKU: 6483764
    Your price for this item is $329.99
  13. ELAC - Discovery Series 160W 2.0-Ch. Amplifier - Silver - Front_Zoom
    Model: DS-A101G
    SKU: 6414699
    Your price for this item is $849.98
  14. Marantz PM7000N Integrated Hi-Fi Amplifier | HEOS Built-in, Amazon Alexa Compatibility | Digital & Analog Sources - Black - Front_Zoom
    Model: PM7000N
    SKU: 6429961
    Your price for this item is $1,199.99
  15. Sonance - Sonamp 200W 2.0-Ch. Digital Power Amplifier (Each) - Black - Front_Zoom
    Model: SONAMP 2-100
    SKU: 3849012
    Your price for this item is $829.98
  16. Phoenix Gold - MX 600W 4-Channel Full Range Class D Sub Compact Amplifier - Black - Front_Zoom
    Model: MX600.4
    SKU: 6483768
    Your price for this item is $329.99
  17. KEF - 500W 2.0-Ch Amplifier - Black - Front_Zoom
    Model: KEF KASA500
    SKU: 6290788
    Your price for this item is $1,099.99
  18. NAD D 3045 Hybrid Digital Amplifier - Black - Front_Zoom
    Model: D 3045
    SKU: 6451303
    Your price for this item is $799.00
  19. NAD - PP2 Digital Phono Preamplifier - Black - Front_Zoom
    Model: PP-2e
    SKU: 5408072
    Your price for this item is $199.00
  20. Sonance - Sonamp 100W 2.0-Ch. Digital Power Amplifier - Black - Front_Zoom
    Model: SONAMP ASAP3D SE
    SKU: 5683418
    Your price for this item is $534.98
  21. Mark Levinson - No585.5 700W 2-Ch. Class AB Fully Discrete Integrated Amplifier - Black - Front_Zoom
    Model: MLNO585P5AM
    SKU: 6441047
    Your price for this item is $17,600.00
  22. Crown - CDi 1400W 2.0-Ch. Power Amplifier - Silver/Black - Front_Zoom
    Model: OLAMP
    SKU: 5896807
    Your price for this item is $1,199.99
  23. Pro-Ject - 120W 2.0-Ch. Amplifier - Black - Angle_Zoom
    Model: BOX - MAIA-DS BLACK
    SKU: 5706142
    Your price for this item is $999.98
  24. Marantz - AV7706 Surround Pre-Amplifier - 11.2 Channel, Advanced 8K Upscaling, IMAX Enhanced, Auro-3D, Amazon Alexa Compatible - Black - Front_Zoom
    Model: AV7706
    SKU: 6431230
    Your price for this item is $2,999.99
  25. Mark Levinson - No5802 500W 2-Ch. Class AB Integrated Amplifier - Black - Front_Zoom
    Model: MLNO5802AM
    SKU: 6441048
    Your price for this item is $7,700.00

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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