Eight years after the arrival of the Sonos Amp, which supported four speakers for high-end streaming audio around your house, ...

The new BT20A MAX mini amplifier is the flagship version of the company's BT20A series of amplifiers and includes advanced Bluetooth, and refined sound tuning.

Just today I read on an internet forum a post by a "hot" new manufacturer of class D amplifiers saying that "the only way to solve the interference problem is to put the amplifier in a completely ...

Review: The Denon POA-A1HDCI 10 channel audio amplifier offers a slew of connectivity features and power few multi-channel amps can match. Its rated at 150wpx x 10 but can be bridged for double power.

Save $217.42 on Denon's premium integrated amplifier with high-resolution USB-DAC and phono stage, ideal for audiophiles and ...

If you're at all an enthusiast of great-sounding music and are looking to up your game to make what you're playing sound its best, it's hard to be a great stereo receiver or integrated amplifier.

There are few inventions that have been as crucial to the evolution of pop and rock music as the guitar amplifier. Indeed, many cite the 1951 Sun Records recording session of Jackie Brenston and his ...

These days, music is more accessible than ever and in increasingly rich audio formats. Gone are the days of struggling to unearth a quality MP3 from whatever reputable downloader you can find online.

Why you can trust What Hi-Fi? Our expert team reviews products in dedicated test rooms, to help you make the best choice for your budget. Find out more about how we test. For most die-hard hi-fi ...

On visiting a high-performance GaAs fab, I was shown a problem with the measurement system. The on-wafer test system was calibrated using a power meter and on-wafer standards, using the built-in ...

Lock-in amplifiers let you measure very small signals that would otherwise get lost in the noise of even the best available amplifiers. Originally analog circuits, lock-in amplifiers have evolved into ...