Audio Research
First released in 1981
SP7
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If you make a purchase, Linephaze may receive an affiliate commission.Specifications
amplification technologyVacuum Tube
Frequency ResponseHigh Level: 1Hz-50kHz (±0.25dB), MM: 10Hz-40kHz (±0.25dB of RIAA)
Input ImpedancePhono: 50kΩ, High Level: 90kΩ
Output Level2V RMS
Output ImpedanceMain Output: 250Ω, Tape Output: 1200Ω
Signal to Noise RatioHigh Level: 86dB, MM: 74dB
Total Harmonic Distortion<0.002%
Dimensions (W x H x D)483 x 89 x 216
Weight7.3 kg