קדם מגבר מנורות PreSonus TubePre V2

FL-D

TubePre V2
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

Physical
Compact 1/3U rack-mount chassis
External 12 VDC, 1A power supply

Technical 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 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)