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PreSonus TubePre v2 – Tube Preamplifier/DI Box


PreSonus TubePre v2 – Tube Preamplifier/DI Box

The PreSonus TubePre v2 – Tube Preamplifier/DI Box  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
UPC: 673454001659
Number of Channels Single
Inputs 1 x XLR Microphone
1 x 1/4″ TS phone Instrument
Input Impedance Microphone
Gain Range Microphone
-15dB to +65dB
-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 (WxDxH) 1/3U rack-mount chassis
Weight Not specified by manufacturer
Packaging Info
Package Weight 3.3 lb
Box Dimensions (LxWxH) 12.5 x 7.7 x 4.3″

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