Manual

typically emit a low signal level, requiring a "pre-amp" such as the DMP2.

Other instruments, such as keyboard sound modules, may also benefit from

a little bit of punch from the DMP2.

Plug in your mic or instrument with the gain controls turned down, then

turn the gain up incrementally while testing the mic or playing the

instrument. When the signal present or "sig" LED lights fairly consistently,

you’ve reached a good signal level for the DMP2. Some users may wish to

experiment a little further to find what audibly might be referred to as a

"sweet spot." Note that when the "clip" LED lights, it is indicating a signal

2dB below clipping and above. Let your ears be the judge, but when the

clip LED lights and stays lit, you are approaching distortion in your signal.

NOTE: You must also consider the level that is being sent from

the DMP2 to your recording device, sound card input, mixer or

sound system. Check the input meters at the receiving device

and make sure that they are neither too low nor clipping (too

‘hot’). You may be able to adjust the input level or operating

line level of this device, otherwise an adjustment in gain on the

DMP2 may be necessary.

Low-Cut Rumble Filter

When foot movements, mic stand noise, or other low frequency sounds are

unwanted, use the DMP2 Low-Cut filter to reduce or remove them. The

DMP2 uses a 3-pole filter, attenuating the signal 75Hz and below at the rate

of 18dB per octave.

Phase Inversion

It is possible, with a stereo configuration (2-channel) or when two

microphones are recording one instrument, for the two signals to become

"out of phase" with each other. When similar signals are out of phase, they

tend to cancel each other out, greatly reducing signal level. Engaging just

one of the DMP2 Phase Inversion switches will remedy this situation. If

you suspect that your two channels are out of phase, simply switch phase

reverse for one of the channels and see if the sound suddenly ‘comes alive.’

Phantom Power

Unlike dynamic microphones, large diaphragm "condenser microphones"

need to receive a DC voltage (generally 48v) from an external source before