Nagra VPA 845 tube monoblock amplifiers
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New Retail Price:$29,000.00
$13,000.00
| Condition | |
| Payment methods | Contact seller |
Contact seller after sale to pay viaPersonal check or Wire Transfer | |
| Ships from | Granite Bay, CA, 95746 |
| Ships to | United States |
| Package dimensions | 26.0" × 17.0" × 19.0" (100.0 lbs.) |
| Shipping carrier | FedEx |
| Shipping cost | Log in to see price |
| Original accessories | Box, Manual |
 Average | Research Pricing |
Greetings,
Legendary Nagra VPA 845 tube monoblock amplifiers for sale.
S/N: 5520239
S/N: 5520240
Very good condition. 300 hours on Nagra’s Psvane 845s.
***Available separately is a quad of new Nagra Psvane 845s, and 6 used 845s, for many years of enjoyment.***
Will ship in manufacturer packaging via FedEx Ground at buyer’s cost, after payment clears... ALL ACCESSORIES INCLUDED!
Working great, but sold as-is due to age (early 2000s). No PayPal. Please message me if you have any questions. Thank you!
NAGRA VPA
Manufactured from 1998 to 2017
Pure Class-A Push-Pull triode Monoblock amplifiers
The VPA consists of a pair of mono block vacuum tube power amplifiers. Equipped with symmetrical and asymmetrical inputs, they offer a power output of 50 Watts through a pure class A output stage with no feedback. Since its introduction in 1998, the VPA has won prestigious awards and, more importantly, become a reference for a tremendous number of audiophiles all over the world.
PURE CLASS A PUSH-PULL TRIODE MONOBLOCKS
The VPA Uses a pair of matched and individually selected 845 output tubes the VPA offers a clarity of sound second-to-none, and has become a reference to audiophiles worldwide. Constructed in machined-aluminum towers, its highly sophisticated design is based on Nagra’s simple rule: only the best components, no compromises on quality. In addition, the VPA uses fully balanced circuitry from input to output to minimize intermodulation distortion and phase shift as well as removing the need for internal feedback. As a result, the rise time, slew rate and overshoot characteristics of the Nagra VPA are uncommonly good compared to other amplifiers, and simply extraordinary for one based on vacuum tubes. These performance characteristics are constant whether the VPA is delivering minimum or full power.
DIFFICULT SPEAKER LOADS AND ZERO NEGATIVE FEEDBACK
Vacuum tube amplifiers seldom drive difficult speaker loads with success. Using electrostatic or low-impedance dynamic speaker designs with these amplifiers often yield unpredictable results. With the VPA, implementing a zero negative feedback design renders matching difficult speakers much easier. In addition, the VPA offers 4, 8 and 16 Ω outputs so it can accommodate even the most demanding loudspeakers.
FAST, DEEP AND LOW WITH NAGRA OUTPUT TRANSFORMERS
Proprietary Nagra output transformers are used to avoid low-frequency saturation and high frequency ringing so common in other transformer-coupled output states. Bass notes are delivered with absolute authority and sound-stage scale delineation is simply superb.
CHOICE OF 845 TUBES
The 845 tubes go through a 24 hour burn-in and numerous measurements before computer-assisted matching by pairs.
TECHNICAL SPECIFICATION
ELECTRONICS
| Amplification class: | Pure class-A |
| Input impedance: | > 100 kOhms |
| Output impedance: | 4, 8 or 16 ohms |
| Frequency response: | 20Hz to 40 kHz +0 -3dB |
| Power: | 50 W rms |
| Signal-to-noise ratio: | Typically >100dB (ASA A) |
| Input circuit valves: | 2 x ECC83 (input and differential), 1 x E182CC (driver) |
| Power valves: | 845 Triodes |
| Power consumption: | 250 W |
| Mains power supply: | 108-121 V or 216-242 V (Japan: 100 V) |
GENERAL
| Input connectors: Balanced (XLR) or gold-plated Cinch WBT for unbalanced inputs Output connectors: Gold-plated WBT, for wires up to 4.2 mm,4 mm banana connectors for 6.35 mm spade Weight: 13.5 kg (30 lbs) each Dimension: 335 x 115 x 375 mm (13 x 4½ x 14¾ inches) without valves |
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