Meet Pro-Ject’s Head Box S3 B and Head Box DS3 B. Both are compact headphone amplifiers — though the latter is slightly ...

The AMP 30 carries the same clean, restrained exterior design language seen on the AV 20 and Marantz CINEMA Series AVRs, though in a slimmer chassis. Its signature front panel porthole display is more ...

1. Is Amplifier Weight an Indicator of Robust Amplifier Design? You have to find out if the amplifier is a Class A/B analog amp or a Class D digital amplifier before you can generalize about weight ...

The Helm Audio Bolt DAC/AMP’s outstanding audio performance; ability to decode every major high-res audio format—including MQA; ultra-compact form factor; and $99 price makes it a must-have device.

H x W x D (inches) = 4 x 18 x 17.5 Technological progress is a wonderful thing. Over the past 40 years or so, we’ve seen computers that filled an entire room get eclipsed in processing power by ones ...

The $99 Schiit Audio Magni 3+ is a fully discrete, current-feedback headphone amplifier that’s extremely quiet and powerful enough for your headphones. Celebrating 3 birthdays during a global pandemic ...

Ever since WiiM burst on the scene with its first music streamer a few years ago, the audio company has scratched an itch that the now-discontinued Chromecast Audio left behind. Its affordable ...

Optimal Audio has launched its Amp series, featuring three high-power class A/B amplifiers. The Amp series comprises three two-channel amplifiers: Amp 100 (2 x 350W @ 4Ω), Amp 200 (2 x 700W @ 4Ω), and ...

A Class-D audio amplifier developed by STMicroelectronics, the HFDA801A, is targeted at automotive applications. It integrates a 24-bit, 12-dB DAC and features a 2-MHz switching PWM Class-D output ...

I bought my first tube amp last year, after playing guitar for about 25 years. Before then I’d been completely reliant on solid-state amps and digital models. It was a revelation. And then a few weeks ...

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. We can’t remember the last ...

Here this circuit is based on the principle of audio amplification using operational amplifier and pulse width modulation using 555 Timer. In this article we are describing the principle, design and ...