Any coulour you like. This is a great example of the MQ-101 equalizer from McIntosh. There are a couple of tiny bubbles behind the glass, but they're quite hard to see. We've completely restored the wood cabinet, and gone through the electronics top to bottom. Designed to pair with the ML-1C, but that's more marketing than anything. If you need control over your vintage system's response curve, you may need to look no further.
- Production
- 1973-78
- Condition
- 9/10
- Serial No.
- 2V901
- Orig. MSRP
- $250
- Restoration
- Full 30-point service check
- Restored cabinet
- Cleaned controls, switches, and chassis
- Factory Specs
Type Solid state environmental equalizer
Response 20Hz to 20,000Hz (+0.5 -0.5dB)
Distortion 0.1%
Hum and noise -80dB
Input sensitivity 2.5V
Input impedance 60k ohms
Input attenuator switch 0dB, -6dB and -12dB
Output 2.5V into 47k ohms
Tape monitor inputs and outputs with switch
Equalization low frequency 0 to +17dB at 20Hz in 5 steps (0, +6, +9, +13 and +17dB)
Equalization mid frequency -5 to +5dB at 4000Hz in 5 equal steps
Equalization high frequency -4 to +4dB at 20kHz in 5 equal steps
Front panel illuminated gold/teal with Panloc mounting
Dimensions 16.625"W x 3.5"H x 10"D (1.5" knob clearance)
Weight 15 lbs.
- Documentation
McIntosh MQ101 Service Manual
McIntosh MQ101 Brochure
- 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 MQ101 Environmental Equalizer has an illuminated glass panel that matches the appearance and width of other McIntosh electronics. It also has Panloc fasteners that allow it to be locked in place in the cabinet or it can be unlocked to slide out. It is shipped complete with a wood cabinet. It can also be custom mounted using the panloc brackets from the cabinet. There is no power switch in the MQ101. It can be plugged to a switched outlet in the preamplifier or receiver. The MQ101 also has mid and high frequency controls. Some speaker systems have controls for the mid and tweeter that are part of the crossover network. These controls or switches are located at the rear of the cabinet that require reaching behind each speaker to make an adjustment. In addition, the potentiometers or switches that are used often become intermittent. The speaker system impedance also changes with various settings, sometimes going too low. In addition, the frequency range covered by each control is limited by the frequency range and efficiency of the mid or tweeter in the system. In comparison, the MQ101 mid frequency and high frequency controls can be remotely adjusted, do not affect the impedance, and avoid high currents. The frequency band for the mid and high frequencies is not limited to only the frequency range or efficiency of the mid or tweeter. It covers a range that relates better to music.
- Stock No.
- 8036588912861
Any coulour you like. This is a great example of the MQ-101 equalizer from McIntosh. There are a couple of tiny bubbles behind the glass, but they're quite hard to see. We've completely restored the wood cabinet, and gone through the electronics top to bottom. Designed to pair with the ML-1C, but that's more marketing than anything. If you need control over your vintage system's response curve, you may need to look no further.
Production
1973-78
Condition
9/10
Serial No.
2V901
Orig. MSRP
$250
Restoration
- Full 30-point service check
- Restored cabinet
- Cleaned controls, switches, and chassis
Factory Specs
Type Solid state environmental equalizer
Response 20Hz to 20,000Hz (+0.5 -0.5dB)
Distortion 0.1%
Hum and noise -80dB
Input sensitivity 2.5V
Input impedance 60k ohms
Input attenuator switch 0dB, -6dB and -12dB
Output 2.5V into 47k ohms
Tape monitor inputs and outputs with switch
Equalization low frequency 0 to +17dB at 20Hz in 5 steps (0, +6, +9, +13 and +17dB)
Equalization mid frequency -5 to +5dB at 4000Hz in 5 equal steps
Equalization high frequency -4 to +4dB at 20kHz in 5 equal steps
Front panel illuminated gold/teal with Panloc mounting
Dimensions 16.625"W x 3.5"H x 10"D (1.5" knob clearance)
Weight 15 lbs.
Documentation
McIntosh MQ101 Service Manual
McIntosh MQ101 Brochure
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 MQ101 Environmental Equalizer has an illuminated glass panel that matches the appearance and width of other McIntosh electronics. It also has Panloc fasteners that allow it to be locked in place in the cabinet or it can be unlocked to slide out. It is shipped complete with a wood cabinet. It can also be custom mounted using the panloc brackets from the cabinet. There is no power switch in the MQ101. It can be plugged to a switched outlet in the preamplifier or receiver. The MQ101 also has mid and high frequency controls. Some speaker systems have controls for the mid and tweeter that are part of the crossover network. These controls or switches are located at the rear of the cabinet that require reaching behind each speaker to make an adjustment. In addition, the potentiometers or switches that are used often become intermittent. The speaker system impedance also changes with various settings, sometimes going too low. In addition, the frequency range covered by each control is limited by the frequency range and efficiency of the mid or tweeter in the system. In comparison, the MQ101 mid frequency and high frequency controls can be remotely adjusted, do not affect the impedance, and avoid high currents. The frequency band for the mid and high frequencies is not limited to only the frequency range or efficiency of the mid or tweeter. It covers a range that relates better to music.
Stock No.
8036588912861
