Abbingdon Musical Research

AMR's design brief was simple in essence but complex in execution: "to match and exceed the performance of the new Super Audio CD®." To achieve this lofty objective, the CD-77 is able to lay claim to a unique approach in design and manufacture.

To begin, the proprietary top-loading transport mechanism is a painstaking amalgamation of genuine Sony and Philips components best suited to the application.At the heart, the Digital to Analogue Converter is the "King of the Multibit" – the Philips TDA1541A chipset, which is accompanied with a leading-edge circuit incorporating the latest CPLD (Complex Programmable Logic Device) and DSP (Digital Signal Processing) devices. Combined with a revolutionary analogue stage using pure New Old Stock valves, the musical performance of the CD-77 must be heard to be believed.

The CD-77 is unrelenting in its maximisation of the sonic performance and pushes the performance of CD to a new level that seriously questions the ability of Super Audio CD®... It is one of the select few that bridges the performance gap between compact disk and vinyl or analogue master tapes.

A truly sans pareil design, the exceptional 180W per channel AM-77 dual-mono amplifier offers pure, stable power with the ability to drive even the most difficult of loudspeakers with speed, precision and rhythm.

This is founded upon a combination of zero negative feedback, pure Class A valve stages in the pre-amplification section. In the power amplification section are bipolar output devices with AMR’s error correction circuit, which removes all the drawbacks of conventional solid-state amplifier circuits.

The sonic performance of the AM-77 is also matched by its exceptional adaptability no less - several AM-77s may be linked in integrated, bridge, or mono configurations so that the superlative sonic drive of the AM-77 can be increased to meet virtually any application, however demanding.

With these and other outstanding and unique designs, the AM-77 is able to attain that rarely achieved goal of high-end audio components, the ability to convey emotion and tangible feeling of music as the artist intended it to be heard