Nagra
VPA
MSRP not recorded
The Nagra VPA is a pair of vacuum-tube monoblock power amplifiers manufactured by Nagra from 1998 to 2017. Each amplifier uses a pure Class-A push-pull triode topology with a matched 845 output tube, fully balanced circuitry, no negative feedback, and proprietary output transformers. Constructed in machined-aluminum towers, the VPA provides 50 W RMS, 4/8/16-ohm outputs, 20 Hz–40 kHz frequency response (+0/−3 dB), and balanced XLR or unbalanced gold-plated Cinch WBT inputs.
MSRP
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Original list price not on record.
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Specifications
- Power
- 50 W rms
- Power valves
- 845 Triodes
- Amplifier class
- Pure class-A
- Input impedance
- > 100 kOhms
- Output impedance
- 4, 8 or 16 ohms
- Power consumption
- 250 W
- Frequency response
- 20Hz to 40 kHz +0 -3dB
- Mains power supply
- 108-121 V or 216-242 V (Japan: 100 V)
- Input circuit valves
- 2 x ECC83 (input and differential), 1 x E182CC (driver)
- Signal to noise ratio
- Typically >100dB (ASA A)
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