ST-140 vs Dynaco Stereo 150
The Stereo 150's power @ 8ω is 75W against the ST-140's 105W, its thd 0.250% against 0.090%, and its damping factor 50 against >100. Both share signal-to-noise (95 dB).
AI-generated product photo — not official manufacturer imagery.
AmplifiersPower AmplifiersDiscontinued
Estimated price (community-sourced)
$225
Around — community and catalog average, updates slowly
About the ST-140
Solid-state stereo power amplifier from B&K Components Ltd. The ST-140 is a vintage U.S.-made design that was offered in both earlier 70Wpc versions and later 105Wpc versions; the 105Wpc version is rated at 105W per channel into 8 ohms and 105W into 4 ohms, with 5Hz–45kHz frequency response, 0.09% THD, 24.3k ohm input impedance, and 1.1–1.2V sensitivity depending on production run.
Specifications
Power Specifications
Amplification power output and characteristics
- Power @ 8Ω
- 105W @ 8Ω
- Power @ 4Ω
- 105W @ 4Ω
- Damping Factor
- >100
- Minimum Impedance
- 4Ω
- Input Sensitivity
- 1.2V RMS
- Input Impedance
- 24000Ω
Analog Output
Analog signal output specifications
- THD
- 0.090%
- SNR
- 95 dB
- Output Impedance
- 24000Ω
Connectivity
Input and output connections
- Analog Inputs
- RCA
Physical Dimensions
Size, weight, and appearance
- Dimensions
- 435 × 160 × 420 mm (W × H × D)
- Weight
- 11 kg (24 lbs)
Key Specifications
Power: 105W
Specifications are community-contributed and may not be accurate or complete. Verify all details with the manufacturer before making purchasing decisions. Terms & Conditions