background image

4

Rear Panel

1. 9vAC Power Supply Jack: This power jack accepts a 9v AC 1 Amp 2.5mm

power supply. This power supply is included with your DMP3, and
ONLY the proper supply should be used.

2. Output Jacks A and B: These 1/4” TRS jacks are the main outputs for the

pre-amps.  Using a TRS (tip-ring-sleeve) 1/4” plug, the DMP3 will
provide a balanced line-level output. Using a TS (tip-sleeve) 1/4” plug,
the outputs will be unbalanced. 

3. Phase Inversion Switches: Each switch will invert the phase of the signal

for the selected channel 180 degrees (see section, "Phase Inversion").

4. High Impedance Instrument Inputs A and B: These high impedance (100k

Ohm) inputs are optimized for guitars or high impedance microphones.
These jacks are 1/4” TRS, and will accept either 1/4” TRS or TS plugs
(balanced or unbalanced, respectively). When an instrument is plugged
into this jack, the corresponding channel’s XLR input is disabled. 

5. Microphone Inputs A and B: These are the balanced, low impedance

microphone inputs to the pre-amp channels. NOTE: When phantom
power is engaged, power is sent to the ground wire on BOTH of these
channels. An XLR jack is disabled when an instrument is plugged into the
corresponding 1/4” jack . 

1

2

4

5

3

Содержание DMP3

Страница 1: ...els 3 Front Panel 3 Rear Panel 4 DMP3 Operation 5 Setting the Gain 6 VU Meters 7 Hi Lo Gain Switches 7 Low Cut Rumble Filter 8 Phase Inversion 8 Phantom Power 8 Balanced vs Unbalanced Outputs 9 Specifications 10 Limited Lifetime Warranty 11 Notes 12 A U D I O TM DMP3 Users Manuual ...

Страница 2: ... situation Large classic VU meters give an excellent visual representation of the DMP3 output levels DMP3 Features 2 independent XLR fully balanced mic inputs 2 alternate independent 1 4 unbalanced high impedance inputs impedance matched for ideal performance with electric and acoustic guitars and other high impedance mics or instruments Each preamp channel provides two gain ranges to accomodate a...

Страница 3: ...annel Once the gain range is set gain is adjusted via the Gain Adjustment Knobs In the Out position the gain range is 32dB to 66dB Hi gain In the In position the gain range is 6dB to 36dB Lo gain See sections Setting the Gain and Hi Lo Gain Switches for more information 6 Low Cut Filter Switch Pressing and locking this switch to the In position engages the Low Cut filter for the associated channel...

Страница 4: ... the selected channel 180 degrees see section Phase Inversion 4 High Impedance Instrument Inputs A and B These high impedance 100k Ohm inputs are optimized for guitars or high impedance microphones These jacks are 1 4 TRS and will accept either 1 4 TRS or TS plugs balanced or unbalanced respectively When an instrument is plugged into this jack the corresponding channel s XLR input is disabled 5 Mi...

Страница 5: ...s 1 Plug in the 9v wall wart power supply into the wall receptacle and the other end into your DMP3 9v power jack 2 Make the necessary connections from the outputs of the DMP3 to the inputs of your computer sound card mixer use the line level inputs or sound system s power amp NOTE If your target device accepts a balanced signal either on a 1 4 TRS or XLR jack use a TRS plug tip ring sleeve typica...

Страница 6: ...clip LED lights and stays lit you are approaching or have reached distortion in your DMP3 signal NOTE You must also consider the level that is being sent from the DMP3 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 l...

Страница 7: ...ch on the front panel is used to select between the two gain ranges with the Out position being the default The Hi Lo Gain switch in the Out position is the Hi Gain range while the In position switches the DMP3 to the Lo Gain range The gain range is considered to be from the beginning to the end of the Gain Adjustment Knob s travel from left to right In the Out or Hi Gain position the DMP3 preamp ...

Страница 8: ... reducing signal level Engaging just one of the DMP3 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 condenser microphones need to receive a DC voltage generally 48v from an external source before they can ...

Страница 9: ...use TRS plugs on the outputs An unbalanced line on the DMP3 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 lev...

Страница 10: ...shold of clipping Low Cut Filter Cutoff 3 dB down 72 Hz Low Cut Filter Slope 18 dB Octave Input Impedance 1 kHz Mic In 3 kOhms Input Impedance 1 kHz Instr In 100 kOhms Noise Factor 1 5dB maximum gain Signal to noise 115dB A weighted minimum gain THD 0 02 minimum gain THD is below noise floor at most higher gain settings Frequency response 20Hz to 80KHz 0 1 dB Weight Under l lb Power Supply 9vAC 1A...

Страница 11: ...product requires repair because of user misuse or regular wear it will assess a fair repair or replacement fee The customer will have the option to pay this fee and have the unit repaired and returned or not pay this fee and have the unit returned unrepaired The remedy for breach of this limited warranty shall not include any other damages MIDIMAN will not be liable for consequential special indir...

Страница 12: ...n ver DMP3 121701 Notes ...

Отзывы: