Need help?Do you have a question about the McIntosh M Q112 and is the answer not in the manual?
Refer to owner's manual for connected components.
Apply power only after all system components are connected.
Read safety instructions in a separate document.
Ensure at least 3 inches clearance for airflow.
Details on balanced XLR connections.
Description of power and RCA connection types.
Restores musical balance in imperfect acoustics.
Two sets of balanced/unbalanced outputs for subwoofer.
Selects engagement of equalizer circuit (IN/OUT/TRIG).
Adjusts bass and treble frequencies around a center point.
Boost or cut individual frequencies or combinations.
Turns unit ON/OFF or sets to REMOTE mode.
Illustrates tilt control effects on frequency response.
Shows frequency response curves for eight equalizer bands.
Powers down unit if no audio signal is present for 30 minutes.
Manages ON/OFF commands with other McIntosh components.
Receives IN/OUT commands for EQ circuit.
Balanced/unbalanced connections to amplifier or processor.
Balanced and unbalanced connections from audio sources.
Specifies AC voltage configurations and power consumption.
Lists width, height, and depth of the unit.
Details net weight, shipping weight, and carton size.
The McIntosh MQ112 Environmental Equalizer is a sophisticated audio component designed to enhance sound reproduction in audio systems, particularly in rooms with less than ideal acoustics. This instrument allows for customized sound tailoring, aiming to restore proper musical balance with efficiency and precision.
The MQ112 serves as an environmental equalizer, providing users with the ability to adjust various frequency bands to optimize their audio experience. It integrates into an existing audio system, typically between a preamplifier and a power amplifier, or within a processor loop. The core function is to boost or cut specific frequencies, compensating for room acoustics or personal preferences.
The equalizer features eight frequency controls, allowing for adjustments across a wide range of the audio spectrum. These controls are centered at 25Hz, 50Hz, 100Hz, 200Hz, 400Hz, 1kHz, 3kHz, and 10kHz. Each control can raise or lower the amplitude of its respective frequency band by up to 12 dB, affecting both left and right channels simultaneously. This granular control enables users to fine-tune the sound to match their listening environment and musical tastes.
In addition to the individual frequency controls, the MQ112 incorporates a "Tilt" control. This unique feature works around a centered frequency point, or tilt frequency, to adjust the overall tonal balance of the audio. When turned counter-clockwise, the tilt control boosts all signals below the tilt frequency (bass signals) while attenuating all signals above it (treble signals). Conversely, turning the knob clockwise boosts all frequencies above the tilt frequency and attenuates those below it. This provides a broad, sweeping adjustment that can quickly alter the perceived warmth or brightness of the sound.
The MQ112 offers flexible connectivity options, including both balanced (XLR) and unbalanced (RCA) inputs and outputs. It provides two sets of outputs: "Output 1" and "Output 2." Output 2 is particularly versatile, as it can be configured for either stereo or mono operation, making it suitable for connecting a powered subwoofer or for bi-amping applications. This flexibility allows the MQ112 to integrate seamlessly into various audio system configurations.
Power control is another integrated feature. The MQ112 can receive turn-on/off commands from other McIntosh components via its power control input, allowing for synchronized system operation. It can also send turn-on/off commands to other McIntosh components through its power control output. This ensures convenient and coordinated power management within a McIntosh-centric system.
An "EQ Control" knob on the front panel determines whether the equalizer circuit is engaged. In the "OUT" mode, the adjustment knobs are bypassed, and the audio signal passes through unaltered. In the "IN" mode, the audio signal is adjusted according to the front panel settings. A "TRIG" mode allows the EQ circuit to be triggered IN or OUT using a rear panel EQ control trigger, which can be connected to a McIntosh preamplifier with programmable triggers. This enables the EQ to be automatically engaged or disengaged based on the selected input or amplifier.
The MQ112 is designed for user-friendly operation with its intuitive front panel controls. The "EQ CONTROL" knob allows for quick selection between bypassing the equalizer, engaging it with manual adjustments, or enabling external trigger control. This provides immediate flexibility for critical listening or casual enjoyment.
The "TILT" knob offers a broad tonal adjustment, which can be particularly useful for quickly adapting the sound to different genres of music or to compensate for general room characteristics without needing to adjust individual frequency bands. This feature simplifies the process of achieving a desired overall sound signature.
The eight "Equalizer Knobs" provide precise control over specific frequency ranges. This allows users to address particular acoustic issues in their listening environment, such as taming resonant bass frequencies, enhancing vocal clarity, or adding sparkle to high-frequency details. The visual representation of frequency ranges on the front panel, along with common instrument ranges, aids in understanding the impact of each control.
The "POWER" knob on the front panel offers multiple states: ON, OFF, and REMOTE. In the REMOTE mode, the unit can be turned on or off by commands from other audio units connected to its power control IN port. This allows for integrated system power management, where turning on one component can automatically activate the MQ112.
The "AUTO OFF" feature, configurable via a rear panel switch, enhances energy efficiency. When enabled, the MQ112 will automatically power down if no audio signal is present at the input for at least 30 minutes. This ensures that the unit does not consume unnecessary power when the system is idle. When the front panel POWER knob is set to REMOTE, the AUTO OFF function is automatically disabled, prioritizing remote control commands.
The MQ112's multiple outputs, including the configurable "Output 2" for stereo or mono, provide significant flexibility for system integration. This allows users to easily incorporate a powered subwoofer into their setup, or to experiment with bi-amplification, without requiring additional signal splitters or complex wiring.
The solid-state front panel illumination, utilizing long-life Light Emitting Diodes (LEDs), ensures consistent and attractive aesthetics. This design choice contributes to the MQ112's pristine appearance over many years, maintaining its visual appeal within a high-end audio system.
The MQ112 is designed for long-term reliability and trouble-free operation. Proper installation is crucial for its longevity. The unit should be installed upright on its four feet, allowing for adequate ventilation. Maintaining at least 3 inches (7.6cm) of clearance above, to the front, rear, and sides of the unit ensures proper airflow, which is essential for dissipating heat and preventing overheating. The feet should not be removed, as they are integral to ensuring adequate airflow beneath the unit.
The use of high-quality components and solid-state illumination contributes to the MQ112's low maintenance requirements. The LED-based front panel lighting is designed for extended life, eliminating the need for frequent bulb replacements.
For any potential service needs, the manual provides contact information for McIntosh Laboratory's technical assistance and customer service departments. This ensures that users can readily obtain support if they encounter any issues or require assistance with their unit.
The manual also includes detailed packing instructions, emphasizing the importance of using the original shipping carton and interior parts for safe transport. It specifically highlights the necessity of attaching the four plastic feet to the bottom of the equipment before packing, as this ensures proper equipment location on the bottom pad and prevents shipping damage. This guidance helps users protect their investment if the unit ever needs to be shipped for service or relocation.
Overall, the McIntosh MQ112 Environmental Equalizer is a meticulously engineered device that combines advanced audio equalization capabilities with user-centric features and robust construction, promising many years of enhanced listening pleasure.
General| Total harmonic distortion | 0.005% |
|---|---|
| Signal to Noise Ratio | 100dB |
| Frequency Response | 20Hz - 20kHz, ±0.5dB |
| Gain | 12dB |
| Power Requirements | 120V, 60Hz |
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