Nagra S-II preamp

TECHNICAL SPECIFICATION
ELECTRONICS

Output impedance: 18 Ω – Gain selection switch @ +6 dB
9 Ω – Gain selection switch @ 0 dB
Frequency response: 10 Hz – 50 kHz (+0 / -0.5 dB)
Dynamic range: >125 dB (Gain selection switch @ +6 dB)
Input level to reach 0 dB (Modulometer): 1 V rms (Gain at +12 dB) (Gain selection switch @ 0 dB, volume potentiometer @ 0 dB)
Total harmonic distortion (THD): <0.01% @ 1 kHz, 1 V rms out, no load Crosstalk: >85 dB @ 1 kHz, 1 V rms out, no load
Vacuum tubes (selected by Nagra Laboratory): 2x 12AX7/ECC83
1x 12AT7/ECC81
Power consumption: PMAX 12.6 W
Power supply: 12 – 12.6 V DC / 1 A
Operating temperature: +15°C to +35°C Standby < 1 W +59°F to +95°F Operating environment: Indoor only Moderate climate CONNECTIONS Inputs: XLR RCA 1 to 4 Outputs: 2 x XLR 1 x RCA GENERAL Dimensions: 380 x 280 x 76 mm (15 x 11 x 3 inches) Add 3cm or 1.2 inches with a VFS plate placed under Weight: 4.8 Kg (10.6 lbs)