Spec-2 vs Nakamichi PA-7
The PA-7's power @ 8ω is 200W against the Spec-2's 250W, its signal-to-noise 120 dB against 110 dB, and its damping factor 60 against 50. Both share thd (0.100%).
AI-generated product photo — not official manufacturer imagery.
AmplifiersPower AmplifiersDiscontinued
Estimated price (community-sourced)
$850
Around — community and catalog average, updates slowly
About the Spec-2
The Pioneer Spec-2 is a 250W stereo power amplifier produced from 1976 to 1980. It features a current limiter circuit, peak level meters, protection circuit, power switch on/off, impedance selector muting, and a temperature detector. The amplifier employs a cascaded differential amplifier first stage, push-pull drive, and darlington triple push-pull circuit with all stages direct coupled (OCL). It is designed to match the Pioneer Spec-1 preamplifier.
Specifications
Power Specifications
Amplification power output and characteristics
- Power @ 8Ω
- 250W @ 8Ω
- Damping Factor
- 50
Analog Output
Analog signal output specifications
- THD
- 0.100%
- SNR
- 110 dB
- Output Voltage
- 2.0V RMS
Physical Dimensions
Size, weight, and appearance
- Dimensions
- 480 × 186.5 × 445 mm (W × H × D)
- Weight
- 24.3 kg (54 lbs)
Key Specifications
Power: 250W
Specifications are community-contributed and may not be accurate or complete. Verify all details with the manufacturer before making purchasing decisions. Terms & Conditions