The McIntosh MC250 is what happens when McIntosh decides to dip its toes into the solid-state world but refuses to abandon that legendary tube-like magic. Released in 1967, this 50-watt-per-channel beast was McIntosh’s first solid-state power amp, but instead of sounding sterile and lifeless like a lot of early transistor amps, the MC250 kept things warm, smooth, and musical.
This isn’t just an amplifier—it’s a vintage masterpiece that still embarrasses plenty of modern gear.
- Production
- 1967-1979
- Condition
- 8/10
- Serial No.
- 54L69
- Orig. MSRP
- $429
- Restoration
- Replaced one output transistor
- Replaced a few electrolytic capacitors and resistors
- Cleaned control contacts
- Inspected boards for bad connections and resoldered
- Replaced gain knobs
- Verified unit meets mfg specs for power and distortion specs: 50 Watts RMS per channel @ 0.25% THD
- Factory Specs
Power output: 50 watts per channel into 8Ω (stereo), 100 watts into 8Ω (mono)
Frequency response: 20Hz to 20kHz
Total harmonic distortion: 0.25%
Damping factor: 38
Input sensitivity: 0.5V
Signal to noise ratio: 90dB
Speaker load impedance: 4Ω to 16Ω
Semiconductors: 24 x silicon transistors, 18 x diodes
Dimensions: 7-1/16"H, 10-5/8"W and 15-5/8"D
Weight: 35 lbs
- The History of McIntosh
- Founded in 1949, McIntosh is known for offering distinguished home audio systems that deliver the ultimate experience in music and film. Offering products for two-channel stereo sound systems and multi-channel home theaters with surround sound, McIntosh continues to define the ultimate home audio entertainment...
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- Liner Notes
The McIntosh MC2505 is a solid state power amplifier with a maximum power output of 100 watts RMS continuous, 50 watts per channel operating simultaneously, into 4 ohm, 8 ohm, or 16 ohm loads. Harmonic distortion is less than 0.25% at rated power output from 20Hz to 20,000Hz. Frequency range at rated output both channels; +0, 0.025dB, 20Hz through 20,000Hz. At around serial number 36K00, the model designation was changed to 2502-2, and can be visually identified by flush meters, and a gain knob that runs clockwise from -20dB to 0.
- Stock No.
- 8953691537629
The McIntosh MC250 is what happens when McIntosh decides to dip its toes into the solid-state world but refuses to abandon that legendary tube-like magic. Released in 1967, this 50-watt-per-channel beast was McIntosh’s first solid-state power amp, but instead of sounding sterile and lifeless like a lot of early transistor amps, the MC250 kept things warm, smooth, and musical.
This isn’t just an amplifier—it’s a vintage masterpiece that still embarrasses plenty of modern gear.
