The input signal is split into three frequency-bands. Each band is passed through a stereo
compressor / expander, where gain and processing can be altered.
The outputs of the compressors / expanders are then re-combined and fed to the outputs.
There are four different frequencies for each of the two crossovers that can be separately
selected for the low-to-mid and the mid-to-high bands.
The three frequency-band compressors / expanders have separate controls so that different
parts of the audio spectrum can be adjusted and tuned.
With separate gain controls for each frequency-band, the MLA-4 can also be used as an equalizer.
You can always adjust the controls for the separate frequency bands to different settings.
There is no technical reason why they should be the same for all frequencies.
Separate Input and Output gain controls, make the MLA-4 easy to use for different operating levels.
Input Impedance 100 kohm
Maximum input level +29dBu (0dBu = 0.775V)
Thresholds (0dB input gain) -10dBu to +20dBu
Typical THD (ratio 1:1) <-90dB
Frequency Response within 0.05dB 20Hz to 20kHz
Bandwidth greater than 1Hz to 500kHz
Typical Noise -90dBu
Maximum Output level +28dBu
Output impedance 33 ohm