Carver M-400 (1980)
A compact stereo power amplifier using Magnetic Field Amplifier technology, released in 1980.
Overview
The Carver M-400 is a stereo power amplifier produced in 1980 by Carver Corporation, founded in Edmonds, Washington by Bob Carver. Known for its innovative and unconventional designs, Carver labeled the M-400 a "Magnetic Field Amplifier" — a unique classification reflecting its distinctive engineering approach. Nicknamed the "'little cube' amplifier" or simply "Cube," the M-400 stands out for its remarkably compact size and high power output. It was succeeded by the M-1.0t and is considered a legendary product in Carver’s lineup.
Specifications
| Power output | 201 watts per channel into 8Ω |
| Dimensions | 7" by 7" by 7" |
Design
The Carver M-400 used "Tracking Downconverter" technology and featured a "cube" power supply that was unusually compact for its power output. It is described as unique in both electronic and mechanical design, embodying Bob Carver’s philosophy of challenging conventional audio engineering through creative solutions.
Context
The M-400 was recognized as an epic product in the audio world and a breakthrough in amplifier design. Bob Carver was known for controversial but innovative work, and the M-400 exemplified his approach of delivering high performance in a minimal footprint.
Market
An original owner's manual for the Carver M-400 was listed for sale at C $41.50. Units have been listed for €250 in Italy as of January 2024, and a Canadian vendor listed one at $350.00 CAD. Restoration services are available, with a full restore priced at $650, and replacement faceplates offered for $70.00.
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