OPERATION
Multiplier Switch
This switch sets the multiplier for the crossover frequencies.
Placing the switch in the x10 position (Up) sets the adjustable crossover frequency to
Placing the switch in the x1 position (Down) sets the adjustable crossover frequency to
Frequency Adjustment Wheel
After setting the Frequency Switch and Multiplier Switch, use the Frequency Adjustment Wheel to set the desired
Turning the adjustment wheel to the left decreases the set frequency.
Turning the adjustment wheel to the right increases the set frequency.
Quick Setting: Decrease the crossover frequency all the way down. With the system playing, increase the crossover frequency up slowly until the desired crossover point is achieved.
GAIN
Clip Indicators
The MB Quart Q Series amplifiers offer a unique approach to setting the input sensitivity. There is no need for digital
expensive pieces of equipment to set the input sensitivity of these amplifiers. The only thing required is a test disc which contains 0 dB sine waves (45Hz and 1kHz). The on-
board clip detection circuitry eliminates the need for complex measurement devices. Since the MB Quart Q Series amplifiers have a fully regulated power supply, the clip level of the amplifier is the same with or without a load connected. This allows for system setup without damaging your speakers or your hearing.
Gain Setup
NOTE: For maximum dynamic range and best signal to noise please read the following procedure carefully, and if you do not understand the procedure, contact the technical support department for assistance
Turning the adjustment wheel to the left decreases the set gain.
Turning the adjustment wheel to the right increases the set gain.
The loudest possible level on a CD recording is referred to as 0dB. Any level lower in output, is referred to as
The following procedure suggests using a CD with this (0dB) maximum level recorded on it, as well as alternate lower output levels. When the setup is done as described below, using the maximum CD level will result in lower average volume from the system, while using the lowest suggested level may result in excessive distortion, and noise.
NOTE: Many users prefer some additional gain overlap in the system, to allow a higher “average” volume level because of the amount of crest factor found in commercial recordings. In this case, begin with a 0dB signal level, and if you find the average volume not adequate and you are willing to sacrifice some dynamic range and signal to noise performance for increased levels, try repeating the following procedure, and substitute the 0dB test tones with
We suggest using a specifically designed CD for this
The lower the level of the tone on the disc, the “louder” the average volume of the system will be, keeping in mind that dynamic range and signal to noise performance is decreased as average volume is increased.
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