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Applications
Application 4 - Using the MPL 1640 as a recording mixer
You can also use the MPL 1640 as a recording mixer when making simple recordings (for example, when recording a
rehearsal or practice session direct to open-reel two-track, cassette, or DAT recorder). Microphones and line level
signals are connected to various channel inputs. Signal processors are connected to Aux sends and returns and to
channel inserts as required. A submix from Aux send 1 is connected to the input of a headphone amplifier driving cue
headphones so that performers can receive a headphone mix independent of the main control room mix. Finally, the
Main Mix outputs are connected to the inputs of a two-track or DAT recorder, with the outputs of the two-track or DAT
recorder connected to channels 15 and 16. These two channels are routed to Bus 3/4 (by pressing in their Bus
switches), and the Bus 3/4 outputs are connected to a power amplifier driving the control room speakers. The Main Mix
inserts are connected to a dynamics processor (compressor/limiter) in order to automatically limit the mixed signal going
to tape, while the Bus 3/4 inserts are connected to a graphic equalizer in order to “tune” the control room so as to provide
accurate frequency response. In this setup, the Main L/R faders control the signal level going to tape, while the Bus 3/4
level knob controls the playback volume (you’ll want to set the tape recorder to monitor input signal while recording).
One significant advantage of using this kind of setup is that it allows you to continuously monitor the signal arriving at the
two-track tape recorder, as opposed to simply monitoring the signals arriving at the MPL 1640 inputs.
NE PAS OUVRIR.
TO RAIN OR MOISTURE.
ASSEMBLED IN R.O.K.
SAMSON TECHNOLOGIES CORP., NEW YORK, U.S.A.
630Hz 800Hz 1Khz 1.25Khz1.6Khz 2Khz 2.5Khz3.15Khz 4Khz 5Khz6.3Khz 8Khz 10Khz12.5Khz 16Khz20Khz
