Here is a slice of 1970s hi-fi ambition you rarely see: a discrete four-channel integrated amplifier from JVC's Victor line, complete with a built-in quadraphonic decoder and circuitry to handle...

If you opened any 90s project studio rack, the QuadraVerb was probably already in it. Alesis built a multi-effects box that ran EQ, reverb, delay and chorus all at once,...

The QuadraVerb Plus runs four effects at once, reverb, delay, pitch and EQ, in glorious 20kHz bandwidth, the upgraded version of the multi-effects box that lived in every 90s rack....

The Quad 34 is the elegant preamplifier at the heart of Quad's celebrated 1980s system. Compact, beautifully made and famously musical, it offers disc, radio and tape inputs, tilt and...

The Quad 303 is a slice of British hi-fi history: a beautifully engineered power amplifier from the late 1960s and 70s, famous for its smooth, musical sound and near-bulletproof reliability....

This is the holy grail of Sherman gear. The Quad Modular Filter takes the cult Filterbank, the snarling, screaming, envelope-following distortion filter that producers worship, and stacks four of them...

Waldorf built the Q for people who wanted German engineering with an attitude problem. This is a virtual-analog synth that hits like a hardware monster: fat, precise oscillators, that famously...

The Yamaha Q1131 is a professional 1/3-octave graphic equaliser: thirty-one bands of precise tone control for tuning rooms, taming feedback, or carving a signal exactly how you want it. Built...

The Polivoks is the legendary Soviet duophonic analog synth, built in the USSR and beloved for its aggressive, slightly unhinged character. That famous resonant filter snarls and screams like nothing...

Ensoniq's 1996 rack module and a 90s sleeper hit. The MR-Rack crams 64 voices, 886 sounds and Ensoniq's signature 2nd-generation Transwaves into a single 1U space, sample-based bread-and-butter (keys, strings,...