M-GM70 SET Tube vs Kondo Audio Note Japan Gakuoh II
The Gakuoh II's weight is 31.75 kg (70 lbs) against the M-GM70 SET Tube's 40.82 kg (90 lbs) and its depth 485 mm against 482.6 mm. Both share power @ 8ω (20W) and class (Tube).
AI-generated product photo — not official manufacturer imagery.
AmplifiersTube AmplifiersPower Amplifiers
Estimated price (community-sourced)
$70,000
Around — community and catalog average, updates slowly
About the M-GM70 SET Tube
The Austin Acoustic M-GM70 SET Tube is a pair of single-ended-triode monoblock tube power amplifiers. Each amplifier uses a GM70 power tube, a Western Electric 437A driver tube, and tube rectification. Austin Acoustic specifies 20 watts of output power and a frequency response of -0 dB at 20 Hz to -0 dB at 20 kHz. The listed dimensions are 11 × 14 × 19 inches and the weight is 90 pounds per amplifier.
Specifications
Power Specifications
Amplification power output and characteristics
- Power @ 8Ω
- 20W @ 8Ω
- Amplifier Class
- tube
Physical Dimensions
Size, weight, and appearance
- Dimensions
- 279.4 × 355.6 × 482.6 mm (W × H × D)
- Weight
- 40.82 kg (90 lbs)
Never published
- Analog Output — the maker never published this. Checked 30 sources on 6 Sept 2026
- Connectivity — the maker never published this. Checked 30 sources on 6 Sept 2026
Key Specifications
Power: 20W
Specifications are community-contributed and may not be accurate or complete. Verify all details with the manufacturer before making purchasing decisions. Terms & Conditions