Hafler MAQ-104 owner manual Equalizing with a Real Time Analyzer, Step by Step

over driving the amplifiers turn down the output levels of the source and then fine adjust the MAQ-104.

EQUALIZATION

Response problems created by the audio environment (the car’s acoustics) usually can be corrected with a good quality equalizer that has flexible and precise adjustment. The MAQ-104 provides this flexibility and precision.

Response problems	created	by poor	system design must
be corrected at the	amp and	speaker	level.

EQUALIZING WITH A REAL TIME

ANALYZER

For best resolution, a 30-band (1/3-Octave) Real-time Analyzer (RTA) or a swept spectrum analyzer with 1/3-Oc-

tave resolution should be used. A lo-band, 1-Octave resolution RTA will give decent results, but is harder to use. Either RTA method will require a pink noise generator.

STEP BY STEP

1) Extend MAQ-104 input/output cables and B + , turn-on and ground to a convenient location outside the vehicle. (A kit is available from your Hafler dealer.)

2)Test the system to ensure proper function - “zero” all pots and check level by switching the defeat switch quickly.

3)Position microphone and stand in car seat, head height, ear level (preferably inside ear) with microphone facing forward. Microphone placement will have a significant effect on frequency response, and moving the microphone around in the driver’s area will give a good idea of overall response.

4)Calibrate RTA.

5)Input pink noise to MAQ-104 on channel corresponding with microphone placement. Set volume level to 90-100 dB.

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