Designed and engineered to be the world's finest amplifiers, every aspect of Diamond Audio's D7 Series was evaluated for maximum benefit to the audiophile in a variety of installation environments. D7 Series amplifiers utilize circuit designs years ahead of any competition with integrated design features exceeding the capabilities of stand-alone audiophile components.

Each D7 amplifier will be personally auditioned and certified by an audiophile technician before receiving its unique reference number and birth certificate showing the amplifier's final test results.

Technical features:

S.T.R.E.E.T. - Symmetrical Topology Regulated Extreme Efficiency Triple-Split-Rail Power supply; Zero-Noise Isolated input Section utilizing Quasi-differential instrumentation Amplifier Technology; Up to 12vRMS Input signal Voltage Capability (with -12dB attenuator); Third Order 18dB/octave Butterworth Crossover Topology; Wide Bandwidth/Low distortion Symmetrical gain output stage; High efficiency forced air cooling system; Ultra-Flow busbar speaker ground technology (D7402 and D7104); 3-way (high-pass, low-pass, band-pass) fully variable and independent electronic crossovers for each pair of amplifier channels. Additional onboard independent crossovers for RCA outputs.

Construction:

Mirror polished stainless steel top plate with heat tempered acrylic windows; Fly cut billet aluminum end plates; Fully adjustable mounting feet; 3 oz. and 4oz. Gold plated copper circuit board; Massive 3 piece proprietary heat sink; Solid copper high current power distribution Busbars; Top mount gain and crossover control behind Plexiglas security panel.

Specifications:

Frequency Response 3Hz - 50kHz; Signal to Noise ratio 96-102dB; THD 0.02 percent; Channel separation 80dB

Models:

D7152 - 150W x 2 channels (@4ohm stereo) Dimensions: 17 x 10 x 3-inches; D7402 - 400W x 2 channels (@4ohm stereo) Dimensions: 24 x 10 x 3-inches; D7054 - 50W x 4 channels (@4ohm stereo) Dimensions: 19 x 10 x 3-inches; D7104 - 100W x 4 channels (@4ohm stereo) Dimensions: 24 x 10 x 3-inches; D7056 - 50W x 6 channel (@4ohm stereo) Dimensions: 22 x 10 x 3-inches

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