The McIntosh MC240 is the amplifier equivalent of a classic muscle car: big, bold, unapologetically old-school, and guaranteed to make modern gear look like disposable tech toys. Released in the early 1960s, this 40-watt-per-channel tube beast is still flexing in systems across the globe, long after most of its contemporaries have bitten the dust. Why? Because McIntosh built it like a tank—and because audiophiles can’t resist those glowing tubes and that unmistakable McIntosh chrome chassis.
Let’s get one thing straight: the MC240 doesn’t care about your minimalist, all-digital audio setup. It’s here to remind you what real hi-fi sounds like, with a side of “they don’t make ’em like they used to” thrown in for good measure.
This is a beautiful example. There is a bit of surface scratching on the chrome and transformers (as to be expected) but there is no rust and the lettering is perfect.
- Production
- 1965-69
- Condition
- 9/10
- Serial No.
- 45G23
- Orig. MSRP
- $288
- Restoration
- Recapped power supply with Nichicon and F&T multi-section capacitors
- Replaced cathode bypass capacitors with Nichicon "Gold"
- Kept all original Sprague "Black Beauty" film capacitors
- Changed selenium diode to silicon
- Repainted lower chassis
- New Tung-Sol matched quad 6L6GC STR
- 3x Telefunken 12ax7
- 2x Telefunken 12au7
- 2x RCA 12bh7
- Factory Specs
Type Stereo Tube Power Amplifier
Power output 40 wpc into 8Ω (stereo), 80W into 2Ω (mono)
Frequency response 16Hz to 40kHz
Total harmonic distortion 0.5%
Input sensitivity 0.5V
Signal to noise ratio 90dB
Speaker load impedance 4Ω to 16Ω
Tube complement 4x 6L6GC (output), 2x 12AU7, 2x 12BH7, 3x 12AX7
Rectifier Solid State
Finish Chromium and black
Dimensions 17.25"W x 8"H x 10.75"D
Weight 56 lbs.
- Documentation
McIntosh MC240 Owner's Manual
McIntosh MC240 Service Manual
- 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...
[ Read More ]
- Liner Notes
The MC240 has on one chassis two 40 watt power amplifiers.In addition to use as a stereo amplifier, the flexibility of the MC240 permits it to be used as a monophonic amplifier that delivers 80 watts, or as two separate 40 watt amplifiers with each channel amplifying completely separate programs, or as two amplifiers for use with an electronic crossover network.
- Packing
- Prepare to be impressed. We have arguably the best packing process around. We use our InstaPak machine and white open cell foam to build a custom enclosure for your piece that ensures that it's stable and secure. If it is particularly fragile or heavy, we typically opt for private courier delivery. Depending on where you are in the country, that may cost a bit extra. We also take great care to protect the tubes. When sensible, we will pack the tubes to prevent any movement. Other times, we'll individually wrap the tubes and mark their corresponding socket to preserve the bias. You can be confident that your piece will be snug as a bug in a rug.
- Shipping
- This piece ships to the contiguous United States for a flat rate of $175, which includes our packaging and our insurance. Of course, we'll ship anywhere in the world, just drop us a line and we'll give you an estimate – even if you're just curious.
- Stock No.
- 8881200660701
The McIntosh MC240 is the amplifier equivalent of a classic muscle car: big, bold, unapologetically old-school, and guaranteed to make modern gear look like disposable tech toys. Released in the early 1960s, this 40-watt-per-channel tube beast is still flexing in systems across the globe, long after most of its contemporaries have bitten the dust. Why? Because McIntosh built it like a tank—and because audiophiles can’t resist those glowing tubes and that unmistakable McIntosh chrome chassis.
Let’s get one thing straight: the MC240 doesn’t care about your minimalist, all-digital audio setup. It’s here to remind you what real hi-fi sounds like, with a side of “they don’t make ’em like they used to” thrown in for good measure.
This is a beautiful example. There is a bit of surface scratching on the chrome and transformers (as to be expected) but there is no rust and the lettering is perfect.
Production
1965-69
Condition
9/10
Serial No.
45G23
Orig. MSRP
$288
Restoration
- Recapped power supply with Nichicon and F&T multi-section capacitors
- Replaced cathode bypass capacitors with Nichicon "Gold"
- Kept all original Sprague "Black Beauty" film capacitors
- Changed selenium diode to silicon
- Repainted lower chassis
- New Tung-Sol matched quad 6L6GC STR
- 3x Telefunken 12ax7
- 2x Telefunken 12au7
- 2x RCA 12bh7
Factory Specs
Type Stereo Tube Power Amplifier
Power output 40 wpc into 8Ω (stereo), 80W into 2Ω (mono)
Frequency response 16Hz to 40kHz
Total harmonic distortion 0.5%
Input sensitivity 0.5V
Signal to noise ratio 90dB
Speaker load impedance 4Ω to 16Ω
Tube complement 4x 6L6GC (output), 2x 12AU7, 2x 12BH7, 3x 12AX7
Rectifier Solid State
Finish Chromium and black
Dimensions 17.25"W x 8"H x 10.75"D
Weight 56 lbs.
Documentation
McIntosh MC240 Owner's Manual
McIntosh MC240 Service Manual
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...
[ Read More ]
Liner Notes
The MC240 has on one chassis two 40 watt power amplifiers.In addition to use as a stereo amplifier, the flexibility of the MC240 permits it to be used as a monophonic amplifier that delivers 80 watts, or as two separate 40 watt amplifiers with each channel amplifying completely separate programs, or as two amplifiers for use with an electronic crossover network.
Packing
Prepare to be impressed. We have arguably the best packing process around. We use our InstaPak machine and white open cell foam to build a custom enclosure for your piece that ensures that it's stable and secure. If it is particularly fragile or heavy, we typically opt for private courier delivery. Depending on where you are in the country, that may cost a bit extra. We also take great care to protect the tubes. When sensible, we will pack the tubes to prevent any movement. Other times, we'll individually wrap the tubes and mark their corresponding socket to preserve the bias. You can be confident that your piece will be snug as a bug in a rug.
Shipping
This piece ships to the contiguous United States for a flat rate of $175, which includes our packaging and our insurance. Of course, we'll ship anywhere in the world, just drop us a line and we'll give you an estimate – even if you're just curious.
Stock No.
8881200660701
