Unison Research Triode 25 DAC Integrated Amplifier

£2,600.00

Reg. price £2,600.00

Price includes VAT

Out Of Stock - Available to Order

Most products will only take a few days to arrive but please either contact us or call 023 92663604 if you would like to check before ordering or if you would like to arrange a demonstration.

Please note we do not ship outside the UK

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The Triode 25 DAC was released as part of the 25th Anniversary celebrations at Unison Research and usefully features a 32 bit, DSD compatible USB input for those using a computer as a high quality music source.

Like its predecessor, the Triode 25 is a push-pull amplifier that utilizes EL34 tubes in the output stage. The push-pull circuit includes a final stage with two power tubes intended for the amplification of the audio signal, and is then followed by a symmetrical output transformer stage that reconstructs the signal into a high-quality linear wave.

Using a push-pull structure in this amplifier design allows for numerous benefits, including higher-output power compared to single-ended designs, improved efficiency and no static polarization of the output transformer for greater performance in the output section. However, for this to work well it is essential that all the individual amplification stages are carefully designed and constructed to prevent the formation of dangerous and compromising odd-order harmonic distortion. This is true for the two semi-output amplifiers, and even more important in the output transformer.

The Triode 25 can operate in two modes: triode and pentode. The latter is capable of delivering a maximum power output of over 45 watts per channel (6Ω load) with minimal harmonic distortion across the entire audio band.

The addition of a USB input modernises the Triode 25 and increases its appeal to the growing world of computer audiophiles, who use their laptop or computer as a high-quality audio source for their hi-fi. The USB input is 32-bit/384kHz and DSD 128 compliant to support the latest standards in studio quality audio.

Key Features:

  • Push-pull integrated valve amplifier
  • 32-bit, DSD-compatible USB input for streaming from a computer
  • Switchable Triode and Pentode modes
  • Premium design throughout
  • Locally sourced materials
  • Based on the long-standing Triode 20 design
  • EL34 tubes in the output stage
  • RC2 remote with black wood finish included
  • Premium Cherry Wood front panel*

Technical Data:

Output Stage: Push-Pull, Ultralinear, Class-AB
Output Power (per-channel):
 
45W in Pentode mode
25W in Triode mode (approx.)
Output Impedance: 6Ω 
Input Impedance: 47kΩ / 50pF
Negative Feedback: Switchable, 5dB or 1.8dB
Valves:

 
2 x ECC83 (12AX7)
1 x ECC82 (12AU7)
4 x EL34 (6CA7)
Power Consumption: 300W max.
Fuses: T3.15A (220 - 250V)
Dimensions (W x D x H): 30 x 45 x 20cm
Net Weight: 20kg

*Triode 25 with Black Wood front panel is available to Special Order.

Why is this item collection only?

This is because some items require more setting up than others (e.g. multi room systems) or have advanced settings.

To ensure you get the most from your equipment we need to take you through the process of setting it up correctly.

Sometimes the equipment is simply not suitable for shipping (e.g. glass stands that have been built up).

Simply reserve your product today and then arrange to pick it up from your nearest Audio-T store.

Items showing as "In Stock" are within the Audio T group and we may need additional time to transfer to your selected branch.

Contact me when this product is available as an ex-demo model

Unison Research Triode 25 DAC Integrated Amplifier

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Triode 25 front
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