Classic 120 vs ART150
The ART150's power @ 8ω is 150W against the Classic 120's 125W, its power @ 4ω 150W against 125W, and its signal-to-noise 108 dB against 96 dB. Both share thd (1.500%).
AI-generated product photo — not official manufacturer imagery.
AmplifiersTube AmplifiersPower Amplifiers
Estimated price (community-sourced)
$11,000
Around — community and catalog average, updates slowly
About the Classic 120
The Conrad-Johnson Classic 120 is a stereo vacuum-tube power amplifier from the Classic series, designed around a simple ultra-linear tube circuit with a 3x 6922 front end and 8x EL34 output tubes. It is rated at 125 watts per channel into 4 ohms, with reconfigurable output connections for 8 or 16 ohm loads, and is specified for low noise and broad bandwidth performance. The model is listed by Conrad-Johnson at an MSRP of $11,000 and is described as currently available;
Specifications
Power Specifications
Amplification power output and characteristics
- Power @ 8Ω
- 125W @ 8Ω
- Power @ 4Ω
- 125W @ 4Ω
- Amplifier Class
- A
- Minimum Impedance
- 4Ω
- Input Sensitivity
- 0.9V RMS
- Input Impedance
- 100Ω
Analog Output
Analog signal output specifications
- THD
- 1.500%
- SNR
- 96 dB
Connectivity
Input and output connections
- Bluetooth
- No
- Wi-Fi
- No
- Ethernet
- No
Physical Dimensions
Size, weight, and appearance
- Dimensions
- 482.6 × 193.5 × 479.5 mm (W × H × D)
- Weight
- 34.02 kg (75 lbs)
Key Specifications
Power: 125W
Frequency: 20-20000 Hz
Specifications are community-contributed and may not be accurate or complete. Verify all details with the manufacturer before making purchasing decisions. Terms & Conditions