NAGRA VPS - Valve Phono Stage Preamplifier - NEW!

Brand New! – Closed Box
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Note 1: Free shipping to EU, USA, UK. Shipping price to any other country is an estimate. Please message us for specific shipping price to your particular location.
Note 2: This product is custom ordered, please check availability and delivery times.
Note 3: Not Included optionals are available. Additional MM input (extra € 325), Spikes kit (extra € 350), additional MC input (extra € 1.450), and VFS base plate (extra €1.790). Message us if needed before placing your order.
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Note 5: We can quote any kind of bundle with our products at the most convenient prices. Just visit our store and ask for it.

NAGRA VPS – TUBE PHONO PREAMP
The VPS dual input valve phono preamplifier is based on the design principles of the world acclaimed PL-P phono stage.
The listener benefits from the true sound of their vinyl record library using the outstanding performance of Nagra tube electronics.
CHASSIS DESIGN
Built in a traditional Nagra compact brushed aluminium case with identical dimensions to the preamplifiers and CD players, this dual input phono preamplifier is to be used in conjunction with a line preamplifier such as the Nagra JAZZ. The metal chassis of the VPS offers excellent protection from spurious parasitic interference which can be very influential when working with phono level audio signals.
CIRCUIT DESIGN
The internal circuits of the VPS are gold plated and benefit from in-house wound input transformers to guarantee the highest possible fidelity when operating with a moving coil cartridge. All the connections to the VPS are available on the rear of the unit and use the WBT gold-plated RCA connectors. The VPS is equipped with a single MM / MC input stage as standard, but can be equipped with an optional second MC / MM or MM only input circuit to accommodate a second tone-arm or turntable.
Even though the circuit is mounted on insulation suspension mountings, ideally, the VPS should be installed on the VFS (Vibration Free Support) shock absorbing plates, to totally eliminate any mechanical vibration from being transmitted to the highly sensitive input stage.
ADAPTIVE LOADING CIRCUITS
Taken from the concept of the PL-P the VPS uses adaptive loading circuits built onto small additional boards that can be inserted as required. Six of these circuits are delivered with the unit, allowing the input impedance of the VPS to be adapted to match virtually any phono cartridge. Three additional custom made modules are available from Nagra, free of charge upon request.
POWERING
The VPS can be powered by its own independent 12V supply unit. To take the VPS a step further, the MPS multiple power unit can be used. In this case, adding the optional Li-ion battery pack, to guarantee complete isolation from the Mains, should be considered.
TECHNICAL SPECIFICATION
ELECTRONICS
Frequency response: 20 Hz to 30 kHz (+1/0 dB)
Harmonic distortion: > 0.15% (Hi output position)
Signal-to-noise ratio: > 77 dB (ASA A)
Channel separation: Typically 60 dB
Input circuit loading: Without load module installed: 47 kOhms (can be deactivated)
Loading modules: 6 modules supplied, 3 custom-made upon request
Input circuit A: Accepts MM and MC inputs
Input circuit B (optional): As input A or MM only (without transformers)
Transformer gain: (MC input) 11 dB
Tube stage gain: 34 dB (ECC 81 and ECC83 tubes)
Transistor stage gain: 15 dB (can be deactivated)
Correction norms: RIAA 1953 (with jumpers in place) or IEC 1976 (without jumpers)
Power consumption: 12,6 W (in 1.6W stand-by mode)
Power supply External: 94-132 V or 188-264V / 44 to 66 Hz
GENERAL
Input connectors: Gold-plated RCA-Cinch WBT
Output connectors: Gold-plated RCA WBT or asymmetrical XLR Neutrik connectors
Weight: 3.3 kg (7.3 lbs)
Dimension: (W x D x H) 27.7 x 254 x 76 mm (12.2 x 10 x 3 inches)

NAGRA VFS / CLASSIC VFS
VFS VIBRATION FREE SYSTEM
The VFS and CLASSIC VFS (for AMP and for Source) both consist of two base plates, placed one above the other, designed to eliminate mechanical vibration causing noise in other elements of the system, in particular the highly sensitive preamplifiers. The CLASSIC VFS is specifically reserved for use with the deeper chassis, like HD DAC, CLASSIC DAC, TUBE DAC, CLASSIC PREAMP, CLASSIC AMP, CLASSIC INT and CLASSIC PSU, as they are larger than the standard VFS plates.
VIBRATION FREE SUPPORT
The VFS and CLASSIC VFS (for AMP and for Source) is a system consisting of two solid aluminum plates, placed one above the other to eliminate external mechanical vibration. Vibration absorption is often underrated in hi-fi systems, and should be studied carefully so as to get the best out of the equipment. All electronic circuit boards inside Nagra equipment are mounted on special silencing-blocks anyway, but the VFS allows you to go one step further in truthful sound reproduction.
FEATURES
Vibrations can be externally generated, caused by the acoustic waves of the music, transmitted through the ground (a nearby traffic for example) or even by mechanical playback of CD or LP.
The VFS uses a technology developed for the space agency, consisting of a very special damping material that allows a dramatic vibration damping and shock absorption. Each half of the VFS uses a different cushion to absorb a specific range of mechanical frequencies, which is why the VFS consists of a double layer of plates, that must be used together.
Tube equipment is far more sensitive to vibration than solid state devices. This is why VFS are highly recommended on Nagra tube equipment.
SPIKES / FEET
The VFS is delivered with three spikes or feet, which are screwed to the bottom of the unit to be placed on the VFS plates. Machined from ARCAp, a completely non-magnetic copper-nickel-zinc non-ferrous alloy. Their tips are made from Delrin resin whose properties lie between those of metal and plastic in terms of strength, hardness and stability. They ensure ultimate protection from vibration for any Nagra HiFi elements.
Tube equipment is far more sensitive to vibration than solid state devices. This is why VFS are highly recommended on Nagra tube equipment.
TECHNICAL SPECIFICATIONS
VFS
Top plate: 27.7 x 22.7 cm
Bottom plate: 28.6 x 23.7 cm/ 11.2 x 9.3 inches
Total height: 2.1 cm / 0.82 inches
Weight: 2.5 kg / 5.5 pounds
CLASSIC VFS
Top plate: 33.8 x 27.7 cm / 13.3 x 10.9 inches
Bottom plate: 34.8 x 28.7 cm / 13.7 x 11.3 inches
Total height: 2.1 cm / 0.82 inches
Weight: 4 kg / 8.8 pounds
MECHANICAL SPECIFICATIONS VFS GEL
Optimum Load (kg/4 legs) – Top plate : 5〜15 – Bottom plate : 15〜50
Resonance Point (Hz) – Top plate : 26〜18 – Bottom plate : 22〜15
Resonance Magnification (dB) – Top plate : 13- Bottom plate : 20〜18
Recommended Frequency (Hz) – Top plate : 37〜 – Bottom plate : 30〜
Deflection (mm) – Top plate : 1.1〜2.2 – Bottom plate : 0.7〜2.0
Color – Top plate : Orange – Bottom plate : Blue