DA-A7DC vs B&K Components Ltd. ST-140
The ST-140's power @ 8ω is 105W against the DA-A7DC's 75W and its power @ 4ω 105W against 110W.
AI-generated product photo — not official manufacturer imagery.
DA-A7DC
Mitsubishi DiatoneAmplifiersPower AmplifiersDiscontinued
Estimated price (community-sourced)
$350
Around — community and catalog average, updates slowly
About the DA-A7DC
The Mitsubishi Diatone DA-A7DC is a vintage stereo solid-state power amplifier with dual-monaural construction. It is rated at 75 watts per channel into 8 ohms and 110 watts per channel into 4 ohms over 20 Hz–20 kHz. Its specifications include approximately 0.005% total harmonic distortion, a damping factor of 100, and a 107 dB signal-to-noise ratio. The available evidence supports its reputation for robust construction and clean, controlled sound, although subjective descriptions such as “good bass” are not objective specifications.
Specifications
Power Specifications
Amplification power output and characteristics
- Power @ 8Ω
- 75W @ 8Ω
- Power @ 4Ω
- 110W @ 4Ω
Key Specifications
Power: 75W
Specifications are community-contributed and may not be accurate or complete. Verify all details with the manufacturer before making purchasing decisions. Terms & Conditions