The pre-amp stage is all about minimal colouration. Take the source signal and pass it onto the power amp stage with as little interference as possible. That's exactly what the 851E does, and coupled with its solid-state volume control, it retains audio signal purity and precision even at the lowest listening levels.

The toroidal transformer helps, as does our insistence on using only audiophile-grade components; many hours of fine tuning also play their part. The 851E has a broad range of connection options, including three switchable between unbalanced RCA and balanced XLR, the later ideal for high-end sources. Traditional sources get six RCA unbalanced inputs, plus there's a dedicated sub woofer output and two sets of speaker terminals.

The 851E is designed as the partner to the 851W and to this end it has control bus connections for power syncing, as well as a Terrapin impedance buffering module for seamless switching between sources. The result is a combination that's comfortably the most musically thrilling we've ever made: detailed, powerful, nuanced.

Incredibly low distortion
Every component within the 851E is designed not to interfere with the audio signal input and output, meaning that harmonic distortion and noise are so low that they're almost impossible to measure.

Further improvements
The 851E features a high-end-friendly range of inputs and an innovative solid state volume control - this retains audio signal purity and precision even at low volume levels.

Terrapin modules
Both the 851E and 851W use our proprietary Terrapin impedance buffering modules, for absolutely consistent sound across all sources.

Toroidal transformers
The 851E and 851W both uses a large toroidal transformer to deliver perfect power, with extremely low distortion. The 851W takes things one step further by using two separate toroidal transformers; one for the power amplifier itself and
one for input and other circuitry.

Superior connectivity
The 851E has a wider range of input options than its predecessors, with eight inputs including three switchable between unbalanced RCA and balanced XLR - the latter ideal for connecting to modern high-end sources.

Private listening
The 851E's headphone output will deliver high quality sound too; great when not wanting to disturb others.

Full Metal Jacket
All the above points would mean nothing if these amplifiers were not built to last! From the all-metal casework and ultra rigid chassis, to the high-quality, high-power toroidal transformers, every component in the 851E and 851W is
designed to give many years of listening pleasure.

Features such as changing input names on the display allow you to customise the 851E to suit your system, making it simple to select and listen to sources.

THD (unweighted): < 0.00045% @ 1kHz, < 0.00057% @ 20kHz

S/N (unweighted): < 110dBr, < 90dBu

Frequency response: 10Hz - 100kHz ± 0.1dB

Crosstalk @1kHz: > 110dB

Maximum output: 8V rms unbalanced, 8V + 8V rms balanced

Output impedance: 100 Ohms (Unbalanced or Balanced)

Subwoofer output: Flat or 200Hz 2nd Order Butterworth LPF

Max power consumption: 36W

Bass & treble controls: Shelving type

Max bass boost/cut ± 10 dB at 10 Hz

Max treble boost/cut ± 7.5 dB at 20 kHz

Standby power consumption: <0.5W

Colour: Black and silver

Dimensions (HxWxD): 115 x 430 x 385mm (4.5 x 16.9 x 15.2'')

Weight: 8.1kg (17.9lbs)