Amplifier, Integrated

Main Details
Maker Heathkit Brand Heath Company Company Daystrom, Incorporated Company
  • 2 × Channel (May be operated as a mono unit at twice the power.)
Signal Path Analog Hardware
Made In United States
Date Produced 1963
(H × W × D)
Weight 28.75lbs (Net), 34.5lbs (Shipped)
Power Source 115/230VAC, 50/60Hz 150W
Frequency Response 30Hz-15kHz ±1dB (25W)
Notes Export model with multi-voltage power transformer
Additional Specifications
Output Power ("Hi-Fi") 25W
Output Power (Mono, "Hi-Fi") 50W
IHFM Music Output Power (0.7% THD, 1kHz) 30W
IHFM Music Output Power (Mono, 0.7% THD, 1kHz) 60W
Impedance Load 4/8/16Ω
Input Sensitivity (Phono) 1.5mV
Input Impedance (Phono) 47kΩ
Input Sensitivity (Tape) 1.0mV
Input Impedance (Tape) 470kΩ
Input Sensitivity (Tuner) 0.2V
Input Impedance (Tuner) 250kΩ
Input Sensitivity (Aux) 0.2V
Input Impedance (Aux) 250kΩ
THD (25W, 1kHz) 0.5%
THD (25W, 30Hz-15kHz) 2%
IMD (25W, 60Hz:6kHz, 4:1) 1%
SNR (Phono) 55dB
SNR (Tape) 35dB
SNR (Aux) 70dB
Channel Separation (1kHz) 42dB
Damping Factor 15
Output Tube 7591
Tube Complement 7591 (x4), EF-86 (x2), 12AX7 (x4), 7199 (x2), GZ-34
Finish Black and Gold


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