M-Audio DMP2 [6/8] Balanced vs unbalanced outputs

they can generate an output signal. If the condenser mic doesn’t come with

its own power supply, then "Phantom Power" must be applied from the pre-

amp. Pressing the "phan" button and engaging phantom power on the

DMP2 will send the necessary voltage to both of the XLR Mic Inputs.

Phantom power will not affect a dynamic mic adversely, so its okay to have

a dynamic mic at the XLR input while phantom power is switched on.

Some ‘ribbon’ microphones (not very common) may be harmed, however,

so check you mic’s documentation.

Balanced vs. Unbalanced Outputs

A "balanced" line runs the signal on two wires of opposing polarity, as a

‘twisted pair’ surrounded by a grounded shield. Doing so, it can send a

‘hotter’ signal over a longer distance with less added noise. Though this is

considered "two-conductor," using a TRS (tip-ring-sleeve, or stereo) plug on

the 1/4” outputs of the DMP2 will give you this balanced line—tip positive,

ring negative, and sleeve ground. Generally, if the DMP2 outputs connect

to a system that accepts a balanced line at +4dB (nominal level) operating

level, you should use TRS plugs on the outputs.

An unbalanced line on the DMP2 outputs connects to a 1/4” TS (tip

positive, sleeve ground) plug on a shielded cable with a single conductor,

and is appropriate to use when your sound card or sound system accepts a

1/4” TS plug, RCA plug, or the right or left mono side of a stereo mini-plug.

Typically, the signal on unbalanced lines has an operating line level of

–10dB (nominal level), though this varies somewhat.

You may want to consult the user guide of your sound card or sound

system if you’re not sure what type of signal it can accept. If you need to,

find a primer on recording or sound reinforcement to learn more about this

and the other subjects covered in this manual.