Nagra Classic PHONO

Nagra Classic Phono preamplifier tube best front vfs

After many years of success and esteem, the Nagra VPS is replaced by the Classic PHONO

The VPS, itself inspired by the legendary Nagra PL-P, is a very respected phono stage.

The VPS was the base we used and the obvious product to benchmark the new design.

 

Technical specification

ELECTRONICS

Transformer ratio: 16 dB
Tube stage gain:

@ 1 kHz, no load

MM
Gain switch LOW  37.7 dB
Gain switch HIGH  47.7 dB
MC
Gain switch LOW  53.9 dB
Gain switch HIGH  63.9 dB
Frequency response: 20 Hz – 50 kHz     +0.6 dB    RIAA, TELDEC,
-0.2 dB     COLUMBIA LP
100 Hz – 50 kHz   +/- 0.2 dB
Signal to noise ratio: > -82 dB (ASA A)
With dummy loads connected to the inputs
Total harmonic distortion (THD + N): Please refer to the below graph
Crosstalk: > -75 dB (typically > -82 dB)
Interchannel phase: < 4° (typically 0.35°) @ 20 kHz
Output level: 1 V RMS for 0 dB
Large tolerance to smoothly provide 2 V RMS
Output impedance: < 500 Ω (typically 470 Ω)
Vacuum tubes:

Selected by Nagra Laboratory

2x E88CC/ 6922
1x ECC81/B739
1x ECC83/B759
Power supply: Internal
100 – 240 V~ ±10% / 50-60 Hz With Mains or
with optional CLASSIC PSU 1x 12.6 V / 1.5 A w (Standby <1 W)
Power consumption: PMAX 35 W
Mains fuse: T 500 mA
FST 5 x 20 mm 250 V

 

GENERAL

Operating temperature: +15 °C to +35 °C     Moderate climate
+59 °F to +95 °F
Operating environment: Indoor only          IP30
Weight: 5.4 kg – 11.9 lbs
CLASSIC PHONO unit alone with 1x MC / MM input and 1x MC input
Dimension: 350 (390 from nose of the modulometer to back of the connectors) x 277 x 80mm (15.4 x 10.9 x 3.2 inches) – Add 3cm or 1.2 inches with a VFS plate placed under
FFT of THD + N(A weighting) curve Classic Phono preamplifier nagra best top
Accessories

CLASSIC VFS FOR SOURCE: Vibration Free Support
CLASSIC PSU (please note that it will not operate properly with the ACPS or MPS power supplies)

Nagra Classic Phono preamplifier tube best front vfs

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