Q-Pre: 4 channel microphone preamp
The market size for digital audio interfaces and computer based digital editing has increased in a massive way. With systems available at very low prices, more and more users are utilizing this technology.
One of the main problems with many of these systems is the input stage only consisting of unbalanced line inputs or very low (or no mic pre) gain structure for the balanced input stage and the unavailability of phantom power. The Q-Pre comes to the rescue with 4 channels of balanced input, with a full range of gain control from -20dB to +40dB and phantom power switchable for channel 1 and 2 (in pairs).
The unit is housed in a stylish extruded aluminium external chassis that can be rack-mounted using SM Pro Audio’s Q-Rack rack-mount adaptor.
Features
- AUDIO INPUTS & PRE AMPS:
Connectors XLR
Type balanced
Impedance 2k Ohms
Min Sensitivity -40dB
Peak input level +5dB
Gain control range 50dB
Peak amplification 74dB
Phantom power +48V, switchable
- AUDIO OUTPUTS:
Connectors 1/4“ jack
Type TRS balanced
Impedance -10dB 47K
Peak output level +18.5dB
- DIST, FREQ, S/N RATIO & CROSSTALK:
Frequency response 20Hz~20kHz, 0dB~-2B
Distortion 0.02%
S/N Ratio better than 80dB
Crosstalk rejection >70dB@1kHz;-20dBinput
- PHYSICAL:
Dimension 1 3/4“ (44.5 mm) * 19“ (482.6 mm) * 8 1/2“ (217 mm)
Net weight approx. 1 kg
- 4 XLR inputs
- Gain control per channel
- Peak Light indicator per channel
- Phantom On/Off per channel pair (1&2)
- 4 TRS outputs
- Metal housing





