AUDIO LOGIC MT66

    Audio Logic's MT66 model is a dual audio compressor/limiter. It can
    be operated in stereo mode with the "Link" switch.

    This device must be the worst 19-inch format compressor ever
    marketed. Admittedly, I've never heard the Alesis 3630 but I doubt
    that it could be worse.

GATE

    The gate has too much hysteresis. Here are some measurements I made
    with a 1 kHz signal :

                      Gate    Turn on     Turn off
                    setting  point (mV)  point (mV)

                        1         8.2      never
                        2        18        never
                        3        33        never
                        4        59        never
                        5        90          43
                        6       130         100
                        7       164         142
                        8       186         172
                        9       202         194
                       10       210         206

SCHEMATICS

    Don't trust these schematics blindly, they're obviously not original
    schematics but were drawn by me from an actual unit. Caveat emptor !

    The source was device S/N 52434, manufactured in 1986. The PCB bears
    the mention "Rev. B".

    mt66_schem_4.tif and mt66_schem_5.tif are smaller than the others.
    This is not an error.

    Contact me if you have trouble.

-- AYM 2003-03-06

      1_417  2003-03-06  README
     90_920  2003-03-06  mt66_schem_1.tif
     32_416  2003-03-06  mt66_schem_2.tif
     38_348  2003-03-06  mt66_schem_3.tif
     15_948  2003-03-06  mt66_schem_4.tif
     24_458  2003-03-06  mt66_schem_5.tif
     26_002  2003-03-06  mt66_schem_6.tif
     44_398  2003-03-06  mt66_schem_7.tif