The TubePre V2 from PreSonus is a fully professional tube preamp with a dual-servo (no capacitors) gain stage that allows for boosting the program 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 meter. 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.
- 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
- 80 Hz high-pass filter
- -20 dB pad
- Instrument input select
- Phase reverse switch
- Backlit VU meter
- 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 1.3kΩ, Instrument 1MΩ
- Gain Range: Microphone -15dB to +65dB. Instrument -30dB to +50dB
- Output: 1 x XLR. 1 x 1/4" TS phone
- Output Impedance: 51Ω
- 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=40Ω, A-weighted -128dB, 20kHz BW, maximum gain, Rs=40Ω, 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, center pin positive, via included external power supply
- PSU Barrel Dimensions: 5.5mm outer dimension x 2.1mm inner dimension x 9.5mm length
- Dimensions: 1/3U rack-mount chassis
- Weight: Not specified by manufacturer
