ปรีแอมป์พร้อม Di แบบหลอด PreSonus TubePre V2 Single-channel Microphone and Instrument Preamplifier with Built-in Tube Tone Circuit, 12AX7 Vacuum-Tube Stage
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฿5,990.00 ฿5,900.00
ปรีแอมป์พร้อม Di แบบหลอด PreSonus TubePre V2 Single-channel Microphone and Instrument Preamplifier with Built-in Tube Tone Circuit, 12AX7 Vacuum-Tube Stage, Balanced and Unbalanced I/O, Phantom Power, High-Pass Filter, Phase Reverse, Backlit VU Meter
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.

| 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 (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″ |