ROSTEC LMA8 User manual

LMA8 Mic/Line Preamplifier
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ROSTEC LMA8
8-channel Professional Mic/Line Preamplifier
Programming of the push-button response time
The IMP and +48V push buttons on the front panel are tactile toggle switches. They can be programmed to 6 different
response times: 32 msec, 63 msec, 125 msec, 250 msec, 500 msec or 1 second
The unit is switched into programming mode by holding down the CH8 IMP switch while powering up. The response time
is selected by pressing the CH1 to CH6 IMP switches. The chosen setting is immediately saved into memory. No need to
do anything special.
The graphical representation illustrates the procedure.

LMA8 Mic/Line Preamplifier
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Step 1: Turn the unit off
Step 2: Hold down CH8 IMP switch while turning the unit on.
Step 3: The 6k IMP LEDS on channels 1 to 6 will flash 3 times, indicating that the unit is in programming mode
Step 4: Press the IMP switch on channels 1 to 6 to select the response time. The 6k IMP LED will light up indicating the
selected response time. The setting is immediately saved into memory.
CH1: 32 msec, CH2: 63 msec, CH3: 125 msec, CH4: 250 msec, CH5: 500 msec, CH6: 1 sec
Step 5: There are 3 ways to exit. Press CH7 IMP switch, turn the power off or wait 15 seconds for automatic exit.