PS Audio

M1200 Amplifier Pair

$6,998 MSRP

The PS Audio Stellar M1200 is a pair of monaural power amplifiers using a 12AU7 vacuum-tube input stage and a MOSFET output stage. Each amplifier provides 600 W minimum into 8 Ω and 1200 W minimum into 4 Ω at 1% THD, with stability for musical transients into 2 Ω. Connectivity includes RCA unbalanced and XLR balanced inputs, copper-base nickel-plated binding posts, and a 3.5 mm 5–15 VDC trigger input; listed features include Ice Edge technology and a damping factor above 1100.

MSRP

$6,998

Used market · Excellent

$3,800

-46% vs MSRP

as of Sep 26, 2026

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MSRP to used market

Price history will fill in as sales are recorded.

Specifications

2: Stable for musical transients
4: 1200W minimum
8: 600W minimum
Gain: 30.5dB +/-0.5dB
1khz 1w 4: < 0.005%
1khz 150w 4: < 0.02%
Unit weight: 27 lbs [12.2 kg] (each)
Audio inputs: RCA (Unbalanced) XLR (Balanced)
Output power: 120vac mains, 1kHz, 1% THD
Power factor: >0.9 @ rated power 4Ω
10 20khz 1w 4: < 0.01%
Color options: Black Silver
Damping factor: 50Hz. 2.8VRMS 8Ω >1100 4Ω >550
Input impedance: Unbalanced 50KΩ Balanced 100KΩ
Shipping weight: 29 lbs [13.15 kg] (each)
Signal to noise: 1kHz@1200 Watts > 112dB
Speaker outputs: Copper base nickel plated binding posts (2 pair)
Unit dimensions: 17”W x 3.75”H x 12”D (13"D w/connectors) 17”W x 7.5”H x 12”D (Stacked)
DC trigger input: 3.5mm 5-15VDC
Output impedance: 50Hz, 2.8VRMS <0.007Ω
Vacuum tube type: 12AU7
Frequency response: 2.8VRMS into 4Ω 10Hz – 20KHz +/- 0.5dB 10Hz – 45KHz +0.1/-3.0dB
Mains power inputs: IEC C14
Shipping dimensions: 22”W x 8”H x 17”D (each)
Accessories included: US (NEMA 5-15P) (all versions) Schuko (CEE7/7) (230V version) UK (BS 1363) (230V version)
Idle power consumption: 27W
Voltage options factory set only: Japan 100V North America 120V Europe/Asia/Australia/New Zealand 230V
Sensitivity for rated output power: 2.08V