Velleman PROMIX20U - Manual (Page 4)

PROMIX20U
V. 02 – 03/09/2013 4 ©Velleman nv
5. Overview
Refer to the illustrations on page 2 of this manual.
FRONT PANEL
1 CH1
Combo XLR/¼” phone plug connector.
2 LINE2/3
Stereo line level inputs.
3 MAIN OUT
¼” phone plug output for your amplifier.
4 MONITOR
¼” phone plug output for your stereo headphones.
5 LINE/INSTR
Line input selection switch. Depress the switch when directly connecting a guitar or other
instrument. The impedance will be matched to the line input without the need for a DI box.
6 LINE 2/3 LEVEL
Volume adjustment knob.
7 PEAK LED
Lights when the input signal is too high. Reduce the input signal with the CH1 GAIN knob [8] if
necessary.
8 CH1 GAIN
Overall gain adjustment knob for channel 1.
9 PHANTOM POWER
Activator for the phantom power supply to the XLR connection of the connected microphone.
10 PHANTOM POWER LED
Lights when the PHANTOM POWER activator [9] is depressed.
11 USB ASSIGN TO LINE
USP/PC return to line channel 1.
12 MASTER
Level adjustment knob for the signals sent to the MAIN OUT outputs [3].
13 CLIP LED
Lights when the output signal is too high. Reduce the output signal with the MASTER knob [12]
if necessary.
14 MONITOR
Level adjustment knob for the signals sent to the MONITOR output [4].
15 POWER LED
Lights when the mixer is switched on.
REAR PANEL
DC IN 5V 500mA
Full-speed USB2.0 port (Windows® Vista, 7 and Mac® OS X compliant 2.0 full speed) for
16-bit/48 kHz stereo recording and playback through your computer.
This USB port also acts as a power supply input from an external power supply source other than
a computer.
6. Technical Specifications
power supply 5Vdc / 500mA, via USB port or external adaptor (not incl., use PSSEUSB3)
mono input channel XLR (balanced)
frequency response: 15Hz ~ 25kHz (±3dB)
THD: 0.01% @ 4dBu, 1kHz
gain range: 0dB ~ -50dB
SN ratio: 100dB
line input RCA
frequency response: 15Hz ~ 25kHz (±3dB)