PreSonus TubePre V2 Tube Preamp At PreSonus, we’ve been designing preamps for a long time and we always focus on audio quality first. So when we decided to upgrade our popular TubePre V2, we focused on improving an already high-quality sound—without jacking up the price. Like the original TubePre, the new version is a fully professional tube preamp, with a dual-servo (no capacitors) gain stage that lets you boost the program signal to smoking hot levels without significantly increasing the background noise. Discrete components and high-voltage operation offer dynamic range and detail not found in other single-channel tube preamps in its class. But the TubePre V2 provides an even wider palette of sound options, and a much more focused tube saturation, than the original TubePre. It has been upgraded to employ PreSonus’ popular XMAX™ Class A solid-state preamp, which is followed in the signal path by a 12AX7 vacuum-tube stage. Twist the TubePre V2 Drive saturation control to add the “color” that only a hand-selected 12AX7 vacuum tube can deliver — from gentle warmth to total fuzz. 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 Input/Output - 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 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, Dynamic Range 115 dB, 1 kHz, unity gain 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 Stage Type 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)
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