PreSonus TubePre v2 - Tube Preamplifier/DI Box

Overview of PreSonus TubePre v2 - Tube Preamplifier/DI Box

Compact and affordable, the ever-popular TubePre V2 professional tube preamplifier employs our popular XMAX Class A solid-state preamp, followed in the signal path by a 12AX7 vacuum-tube stage. A dual-servo (no capacitors) gain stage lets you boost the signal to smoking hot levels without significantly increasing noise. Discrete components and high-voltage operation offer dynamic range and detail not found in other single-channel tube preamps in its class. Built tough enough for serious gigging, the TubePre V2 is a great choice for guitars and microphones alike.

XMAX microphone preamps deliver incredibly high headroom, deep lows, smooth highs, and a rich overall sound garnering them rave reviews from users and the media alike. The 12AX7 vacuum tube that follows the XMAX in the TubePre V2 was hand-selected and carefully tested for electrical conformity and freedom from microphonics. Twist the Drive saturation control to add the “color” that only a hand-selected 12AX7 can deliver — from gentle warmth to total fuzz.

Housed in a rugged case that is built to travel, the TubePre V2 rear panel sports separate unbalanced, ¼” instrument and balanced, XLR mic inputs and unbalanced ¼” and balanced XLR line outputs. Use it as a straight-up tube preamp or a dynamite direct box (DI) for guitars and basses. We’ve provided all of the extras you need, including a highpass filter, phantom power, polarity reverse, and a backlit VU meter. Yet with all its features, it’s small enough to carry almost anywhere—or simply screw-mount it to a standard rack tray.

Features:

• 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
• Polarity-reverse switch
• Backlit VU meter
• Clip LED
• 1 unbalanced ¼” instrument input
• 1 balanced XLR mic input
• 1 unbalanced ¼” line output
• 1 balanced XLR line output
• Compact 1/3U rack-mount chassis
• External 12 VDC, 1A power supply

Specifications:

• Mic Input:
  • Connector Type: XLR, female, balanced
  • EIN: -131 dB, 20 kHz BW, max gain, Rs=40Ω, A-wtd -128 dB, 20 kHz BW, max gain, Rs=40Ω, unwtd
  • Frequency Response: 20 Hz – 20 kHz, -0.3 dB, +4 dBu, unity gain 5 Hz - 120 kHz, -3 dB, +4 dBu, unity gain
  • THD+N: 0.01%, -10 dBu, 1 kHz, unity gain, 20 kHz BW, unwtd
  • Dynamic Range: 115 dB, 1 kHz, unity gain, 20 kHz BW, A-wtd 107 dB, 1kHz, unity gain, 20 kHz BW, unwtd
  • Input Impedance: 1.3 kΩ
  • Phantom Power: +48 VDC, 10 mA
• Instrument Input:
  • Connector Type: ¼” TS, female, unbalanced
  • Input Impedance: 1 MΩ
• Analog Output:
  • Connector Types: XLR, male, balanced ¼” TS, female, unbalanced
  • Maximum Output: +20 dBu
  • Output Impedance: 51Ω
• Tube StageType: 12AX7
• Power:
  • External Power Adapter: +12 VDC, 1A, center-pin positive
  • PSU Barrel Dimensions: 5.5 mm O.D., 2.1 mm I.D., 9.5 mm length
• Physical:
  • Dimensions: 1/3U rack-mountable (screw-mount to standard rack tray, not included)
  • Height: 1.75” (44.45 mm)
  • Depth: 5.5” (139.7 mm)
  • Width: 5.5” (139.7 mm)
  • Weight: 5 lb. (2.27 kg)