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PreSonus BlueTube DP v2 – Mic/Instrument Tube Preamp


The PreSonus BlueTube DP v2 – Mic/Instrument Tube Preamp is a two-channel microphone/instrument preamplifier with “Dual Path” technology that delivers the best of both worlds. It offers a solid state preamplifier stage and a tube preamplifier stage in each channel, delivering either fat, warm tube tone, or solid state transparency. When the Tube Drive is clicked off, the tube preamplifier stage is bypassed delivering ultra-quiet pre-amplification. When it’s engaged, the signal flows through the tube preamp providing anything from gentle warmth to edgy distortion.

The solid-state path feeds the company’s Class A XMAX microphone preamp with 80 dB of variable gain, while the tube path features a 12AX7 tube that operates on higher voltages than comparable models, producing lots of headroom. Each channel of the unit includes a -20dB pad, phase reverse, 80 Hz filter, and +48 V phantom power. Controls include a solid state GAIN control and switchable on/off Tube Drive. The front panel includes illuminated analog VU meters for each channel for easy visual monitoring.

The preamp is great for enhancing all types of microphones including condensers, dynamics and ribbons, as well as instruments including keyboards, acoustic and electric guitars and bass. It also serves as a DI box, thanks to balanced XLR and unbalanced 1/4″ outputs. Singer-songwriters can run their vocals through one channel and a guitar through the other, feeding both to a PA system. Housed in a rugged half-rack enclosure, the preamp can be used as a desktop unit, or can be screw-mounted to a standard rack tray.

Two-channel “Dual Path” microphone/instrument preamp
High headroom Class A XMAX microphone preamp with 80 dB gain range
12AX7 vacuum tube gain stage
Tube Drive tube-saturation control
20 dB pad, phase reverse and 80 Hz filter on each channel
48 VDC phantom power
Two illuminated analog VU meters
Functions as a DI for bass and guitar
UPC: 673454001703
Number of Channels 2
Inputs 2 x 1/4″ TS/XLR Neutrik Combo
Input Impedance Microphone: 1.3kΩ
Instrument: 1MΩ
Output 2 x XLR
2 x 1/4″ TS phone
Output Impedance 51Ω
Maximum Output Level +20 dBu
Phantom Power +48 VDC, 10 mA (independently switchable)
Multi Function No
Frequency Response 20 Hz to 20 kHz, -0.3 dB, +4 dBu, unity gain
5 Hz to 120 kHz, -3.0 dB, +4 dBu, unity gain
Noise EIN
-131 dB, 20 kHz bandwidth, maximum gain, Rs=40Ω, A-weighted
-128 dB, 20k Hz bandwidth, maximum gain, Rs=40Ω, unweighted
Dynamic Range 115 dB, 1 kHz, unity gain, 20 kHz bandwidth, A-weighted
107 dB, 1 kHz, unity gain, 20 kHz bandwidth, unweighted
THD + N 0.01%, -10 dBu, 1 kHz, unity gain, 20 kHz bandwidth, unweighted
Power Requirements +12 VDC, 1000 mA, center pin positive via included power supply
Dimensions (WxDxH) 8 x 5 x 1.75″ (203 x 127 x 45 mm)
Weight 4 lb (1.8 kg)
Specialties Dual path amplifier
Packaging Info
Package Weight 4.355 lb
Box Dimensions (LxWxH) 15.95 x 8 x 4.35″

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