Quad (Acoustical Manufacturing) · Quad reissues

Quad II Forty

Quad's own reissue of the unit that started the brand - same circuit, new-build transformers.

Catalogue code: Quad II Forty
Years: 2000–today
Type: power amplifier (mono)
Valves & speakers: Modern reissue of the Quad II mono block with a 40 W rating, built to the original circuit
Lifecycle: current
Confidence: High

Specifications

Watts: 40
Channels: 1
Technology: tube

Safety

UK valve chassis: mains-derived HT rails stay charged after switch-off; original Hunts/TCC/Erie capacitors and the mains transformer are the two failure points. Value is set by untouched transformers and original cosmetics (silver/black livery), not by the valves fitted.

01 / Witnesses

What applies here

Marks that can be entered for this maker: Serial number, Model / catalogue number, British capacitor code (Hunts, Mullard), Japanese capacitor code (Nichicon, Chemi-Con, ELNA), EIA component code, Version & era marker.

02 / Bounds

The model year is a floor

Nothing predates 2000; components only push the date later.

03 / Value

What moves the price

Sold-price aggregates are not collected yet, so the archive gives no figure — condition, originality of the transformers and a documented recap move this model more than any list price.