The Best Stereo Amplifiers

The best stereo amplifiers provide owners plenty of power and control over their audio without the worry of overloading or blowing out a speaker system. Many of the best stereo amplifiers have energy saving features and heat control elements. Manufacturers like Behringer, Onkyo, and Adcom produce some of the best stereo amplifiers on the market.

The Burly Adcom GFA-555SE 2-Channel 200-Watt Amplifier

The Adcom GFA-555SE 2-Channel 200-Watt Amplifier features a huge 200 watts per channel with an absurd amount of bass accuracy. It uses MOSFET outputs that are said to provide precision and better-sounding harmonics. This best stereo amplifier provides 20Hz to 20kHZ in the frequency spectrum and it weighs about 44 pounds. Its power supply capacitors are intended to give users a lot of current with low impedance overall.

Users find a lot to love about this amp, saying it provides fluid upper mids and highs, as well as a booming low end. While some users note it’s not the liveliest sounding amp, owners note that it makes up for this lack of pizazz in accuracy and dynamics. Many consumers say that this is the best amplifier at its price range for the power and overall value.

The Adcom GFA-555SE 2-Channel 200-Watt Amplifier is available at Amazon for $809.

The Digital Onkyo A-9555 Stereo Amplifier

The Onkyo A-9555 Stereo Amplifier is a digital amplifier that provides 125 watts per channel. It utilizes a Remote Interactive system that lets users run their devices through a single remote. If users buy the RI Dock for the iPod, they can run their iPod with the amp’s remote wirelessly. Onkyo’s Vector Linear Shaping Circuitry is designed to smooth out sampling points to provide a smooth reproduction of sound. Its power supply offers clean energy to drive your speakers without the addition of noise.

Buyers like the Onkyo best stereo amplifier because it provides an even and accurate sweep throughout the frequency spectrum, as well as giving owners plenty of control over their audio. Some users noted that the bass can lack a bit of snap at times, and that the lack of pre-outputs or main inputs prevents users from adding an EQ or preamp device to their set up. However, buyers liked it enough to give it a four star rating at Amazon.

The Onkyo A-9555 Stereo Amplifier is available at Amazon for $498.

The Professional Behringer Europower EP4000 4,000-Watt Stereo Amplifier

The Behringer Europower EP4000 4,000-Watt Stereo Amplifier utilizes an Accelerated Transient Response feature that uses energy pulses to literally drive a woofer cone out to match a bass beat, providing a more accurate and tight sound overall.  It includes XLR input as well as low-frequency filters for more accurate sound reproduction. It features a stereo or bridge mono mode, and its exhaust fan keeps the unit cool and calm.

Users really like the amount of power offered in this amp, saying that you’d be hard pressed to find more power for the price. Most owners also note that the build and sound quality is that of a way more expensive model, and that it has great reliability. They also mention that it’s simple to set up and that the low frequency filters help to make the bass response as clean as possible.

The Behringer Europower EP4000 4,000-Watt Stereo Amplifier is available at Amazon for $350.

The Bridgeable AudioSource AMP-100 2-Channel Stereo Amplifier

The AudioSource AMP-100 2-Channel Stereo Amplifier can drive 50 watts to two channels or 150 watts through its bridge mode. It has a frequency response of 20 Hz to 20 kHz and can be used in 6.1 and 7.1 surround sound systems. It also features A/B speaker selection, allowing users to utilize the amp through multiple rooms. This best stereo amplifier also has a power saving feature that senses when an audio signal is run through it, shutting itself off when not in use.

The AudioSource AMP-100 is lauded by users for its minimal features and no-nonsense amplification. Buyers rated this product four stars on Amazon. Consumers say it gets the job done at the right price, and while its input to output ratio is a bit lower than some other amps, overall it’s a solid value for the price and fulfills its role in the signal chain well.

The AudioSource AMP-100 is available at Amazon for $100.

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