The TubePre V2 from PreSonus is a fully professional tube preamp with a dual-servo (no capacitors) gain stage that allows for boosting the programme signal to high levels without significantly increasing the background noise. Discrete components and high-voltage operation provide wide dynamic range without sacrificing detail. The preamp also serves as a direct box (DI) for guitars and basses and it's small enough to carry almost anywhere.
Housed in a rugged case, the unit features an XMAX Class A solid-state preamp followed in the signal path by a 12AX7 vacuum-tube output stage. Also included are high-pass filter, phantom power for condenser microphones, a phase reverse switch, and a backlit VU metre. The rear panel contains an unbalanced 1/4" instrument and a balanced XLR microphone input, along with unbalanced 1/4" and balanced XLR line outputs.
Features
- Mono, tube based microphone preamp with DI functionality
- XMAX Class A preamp input stage
- 12AX7 dual-servo vacuum tube output stage
- Input Gain control
- 48V phantom power
- 80Hz high-pass filter
- -20dB pad
- Instrument input select
- Phase reverse switch
- Backlit VU metre
- Clip LED
- Powered via an external ( included ) 12VDC, 1A power supply
Specifications
| Number of Channels | Single |
| Inputs | 1 x XLR Microphone 1 x 1/4" TS phone Instrument |
| Input Impedance | Microphone 1.3kO Instrument 1MO |
| Gain Range | Microphone -15dB to +65dB Instrument -30dB to +50dB |
| Output | 1 x XLR 1 x 1/4" TS phone |
| Output Impedance | 51O |
| Maximum Output Level | +20dBu |
| Phantom Power | 48V switchable |
| Multi Function | No |
| Frequency Response | Microphone 20Hz to 20kHz, -0.3dB (+4dBu, unity gain) 5Hz to 120kHz, -3.0dB (+4dBu, unity gain) |
| Noise | Microphone EIN -131dB, 20kHz BW, maximum gain, Rs=40O, A-weighted -128dB, 20kHz BW, maximum gain, Rs=40O, unweighted |
| THD + N | Microphone 0.01%, -10dBu, 1kHz, unity gain, 20kHz BW, unweighted |
| Dynamic Range | Microphone 115dB, 1kHz, unity gain, 20kHz BW, A-weighted 107dB, 1kHz, unity gain, 20kHz BW, unweighted |
| Power Requirements | +12VDC, 1000mA, centre pin positive, via included external power supply PSU Barrel Dimensions: 5.5mm outer dimension x 2.1mm inner dimension x 9.5mm length |
| Dimensions (WxDxH) | 1/3U rack-mount chassis |
| Weight | Not specified by manufacturer |
