Townshend Audio Allegri Preamplifier

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Townshend Audio
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United Kingdom
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Passive state-of-the-art Autotransformer preamp. Transformers are wound with Townshend Audio Fractal-Wire™. Purely passive device. Six position input selector, mute switch, 24 position volume control provides gain change from +4dB to -60 dB. DC coupled with no capacitor in the signal path for ultimate sound quality. Six pairs of gold plated stereo phono inputs and two pairs of outputs.


Allegri Preamplifier

Unrivalled sound quality with crystal clear treble, open mid-band and subterranean bass

Ultra high end performance in a small package

Purely passive Autotransformer design wired throughout with Fractal-Wire™ to perfectly match any source component with any power amplifier

No mains noise, no electronic hash and no requirement for esoteric mains conditioners or power cord

The preamp/control unit is the heart of any hi-fi system. The Allegri Passive Autotransformer preamp is a very small control unit with a very big heart. It is rated by some very critical and highly experienced high-end hi fi reviewers as the best sounding preamp at any price. It is exceptionally transparent, has absolutely no noise and enormously wide bandwidth. The Allegri has vanishingly low distortion, very powerful and deep bass and amazing drive throughout the audio band. Treble is crystal clear with not a hint of hardness or brashness. It just sounds right! 

The Allegri Passive Autotransformer has a six position input selector, a mute switch and a 24 position volume control with intervals chosen to cover a wide range of volume levels in different systems. Its state-of-the-art autotransformers are wound with Townshend Audio Fractal-Wire™ and laminated with ultra-thin metal laminations for the highest possible resolution. There are six pairs of gold plated stereo phono inputs and two pairs of outputs. The case is made of anodized aluminium. 

Preamps of today do not require gain as all quality source components have an output of about 2 volts with a low output impedance. Any competent power amplifier will achieve full output with typically 1 volt and have a high input impedance. Unlike conventional passive controllers the Townshend Allegri matches the impedance requirements of source and amplifier so that full dynamics are retained.


Fractal-Wire ™, results in the most accurate, uncoloured and open-sounding preamplifier possible – with astonishing transparency and resolution of fine detail.

Autotransformer Passive Stereo Preamplifier A high fidelity line level controller that selects 6 RCA phono inputs, adjusts gain and provides 2 RCA phono outputs.

Purely passive device eliminates signal degradation caused by mains-born noise.

6 inputs, 2 outputs.

24 position volume control provides gain change from +4dB to -60 dB.

Mute switch to select off at any volume setting.

DC coupled with no capacitor in the signal path for ultimate sound quality.

Frequency response: 8Hz-100kHz +/- 0.1dB
Maximum signal level: 4V RMS 8Hz; 10V RMS 20Hz
Maximum DC offset : 5mV. (For undistorted 8Hz)
Distortion: Less than 0.01% at 400Hz, 10V (2nd and 3rd harmonic only)
Input impedance is dependent upon the load impedance and gain setting. So, with a power amplifier having 20kohm input impedance (typical)
Impedance: At 0dB, input impedance is 20kohm 
At -10dB (normal listening) input impedance is 200k
Inputs: 6 pairs RCA phono sockets (gold plated)
Outputs: 2 pairs RCA phono sockets (gold plated)
Width: 127mm (5in)
Height: 45mm (1.8in)
Depth: 305mm (12in)
Weight: 1.5kg (3.3lb)

Allegri Preamp HiFi+ review by Alan Sircom

The big revelation though was the sound quality. It was the sound of nothing getting in the way. And the important part of that was within a few bars, you realised that practically all the products you’ve heard that make that claim (and the products about which you have made that claim) are the sound of ‘almost’ nothing. There is nothing here; it’s like direct injecting the sound of your CD player or DAC into your amplifier, only without the brief shriek of loudspeaker cones dying…

…Stereo separation is first rate, and doesn’t fall into the trap of imposing its own sense of image size to the sound; what’s on the disc is what gets out  of the loudspeakers. If it’s a wall of sound recording, it will sound like a wall of sound. If it’s a carefully preserved recording of an unamplified instrument in a live space, that’s what you get. If you move from disc to disc, you hear the change in recording environments, but this isn’t the kind of device that draws your attention to that sound, thus giving you a dose of audiophilia nervosa. You just sit and listen to your music, enrapt…

…Highly recommended? Hell, things like the Townshend Allegri don’t come along that often. If you like music, you will like the Allegri. It’s that simple.

ALAN SIRCOM – HIFI+ September 2014

Adair Acoustic Design test the Allegri Pre

“I initially set up the Allegri in between our Resolution Cantata Music Centre and the ATC Active 50s. These are both serious peices of equipment, so this is a great test for the £2000 Allegri. Its actually quite refreshing to not have to plug in a mains cable into the pre-amp, just makes set up that little bit easier. Once it was all ready, I hit play.

The sound is quite extraordinary; it was up there with the most transparent sounds that I have encountered.  It has it has far less of the top end fizz that earmarks normal “hi-fi” sound, as opposed to natural un-amplified sound. There is a good bass presence with the Allegri, it shows a really impressive dynamic range.”

Adair Acoustic

Allegri preamp, refined & natural. Reviewed by Maarten Van Casteren

Having happily owned a Django for many years, Maarten Van Casteren compares his cherished transformer pre amp with the Townshend Allegri, and surprises even himself.

Allegri Review - Hi Fi Critic April/June 2012 - Martin Colloms

Martin Colloms for Hi Fi critic gives the Allegri a massive 235: “The listeners were immediately aware of the lack of electronic hash, glare, hardness and artificiality.

Instead we heard near magical transparency, exceptional bandwidth, tight control, fine clarity, wide dynamic range, excellent pace and timing, and deep, wide sound stages.

Scores can become a little crazy when one encounters components that redefine sound quality, but I have to give this control unit a massive 235 under good source and load conditions”.

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