Specifications
Rated Power (8 ohms):
900 watts RMS continuous,
900 watts RMS with vocal and music
Frequency Response:
2 Hz to 85 kHz (-3 dB)
Distortion:
Less than 0.5%
Power Bandwidth:
18 Hz to 28 kHz
Line Inputs:
2 (RCA); Normal (AC coupled) or
Lab Direct (DC coupled)
Input impedance:
100 K ohms
Gain:
36 dB
Tube complement:
One 12BY7A, one 12AL5, three 12BY7A,
and twenty KT-120s
Hum and Noise:
Better than 120 dB, referred to 700 watts,
A-weighted
Bias:
Rear panel potentiometer adjustment
Source Impedance:
1.7 ohms
Speaker Output Taps:
2, 4, and 8 ohms.
Designed to drive any load 0.75-ohm and higher
Color:
Deep burgundy with gloss black, natural aluminum, and bright chrome highlights
Dimensions
Amplifier Chassis: 9” (228.6mm) x 13” (330mm) x 20” (508mm) x 2
Power Supply Chassis: 9” (228.6mm) x 11” (279.4) x 20” (508mm) x 2
Weight:
Amplifier Chassis: 55 lbs. (25 Kgs) x 2
Power Supply Chassis: 45 lbs. (20.4 Kgs) x 2
Warranty:
Lifetime
Specifications subject to change without notice.
Silver Seven 900 Tube Power Amplifier
Features
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900 watts RMS into 8 ohms
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Under 1-ohm capability
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Separate amplifier and power supply chassis
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Point-to-point wiring throughout
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Tubes
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12BY7A x 1 (Input Stage)
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12AL5 x 1 (DC Restorer)
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12BY7A x 3 (Driver and Phase Inverter
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Tungsol KT120 x 20 (18 for output; two for screen regulators)
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Output Transformer
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Super-wide-band proprietary design with hand-wound, interleaved windings of copper with silver interconnects on a high-tensile steel core; low leakage inductance
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Controls
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Volume Control
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2-position Feedback Switch
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Four-function meter
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Bias setting
(in conjunction with rear panel control) -
Tube Tester
(tests at actual voltage and current conditions) -
Tube Matcher
(cool, but not really necessary) -
VU Meter
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Rear Panel
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Power Switch
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IEC AC Input Socket
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Line Fuse
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Tube Fuse
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Recessed Tube Bias Control
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5-way binding post outputs
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Common, 2, 4, and 8-ohm speaker load
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XLR and gold-plated RCA Inputs
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Physical
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Pure silver solder used for all internal connections
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Burgundy hand-rubbed piano lacquer finish
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Convection cooling
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Individually hand-signed by Bob Carver
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