Unison Research Triode 25 Black Edition | KT77 valve integrated amplifier with DAC | 2 YEAR WARRANTY

Name: Unison Research Triode 25 Black Edition | KT77 valve integrated amplifier with DAC | 2 YEAR WARRANTY
Brand: Unison Research
SKU: 73756
Price: 4299.00 CHF
Availability: BackOrder

Reference 73756

CHF4,299.00 Tax included

Supplier stock – typically 4 to 7 days

Unison Research Triode 25 Black Edition, a push-pull valve integrated amplifier with four KT77 Gold Lion valves, 50 W in pentode mode and 30 W in triode mode. It includes a Sabre DAC with USB, S/PDIF and Toslink inputs alongside three line inputs.

Description
Product Details

Black valve amplifier at three-quarter angle with its four KT77 Gold Lion valves

Triode 25 in Black Edition

The Black Edition of the Triode 25 features a piano black wooden front panel, a black gun metal finish and updated lettering. Unison Research reworked the circuit in the signal path and power supply to lower distortion and raise power. The chassis measures 30 x 45 x 20 cm and weighs 20 kg, and an infrared remote control is supplied.

Top view with the bias meter between the valves

Four KT77 in push-pull

The four KT77 Gold Lion valves run in ultralinear push-pull, in Class AB, preceded by two ECC83 and one ECC82 Gold Lion, all carefully matched. Output reaches 50 W in pentode mode and 30 W in triode mode into 6 ohms, 10% and 20% more than the original Triode 25. The power supply decouples the anode voltage of each valve and adds polypropylene capacitors for livelier transients.

Triode or ultralinear

The output valves switch from ultralinear mode, with a 60% tap, to triode mode, with a more characterful tone and more measured power. The fixed bias remains partially adjustable by the user, to keep the valves in their best operating range. Negative feedback is selectable between 10 dB and 12 dB, and the bandwidth extends from 10 Hz to 50 kHz at -1 dB.

Three-quarter rear view with line output, subwoofer output and digital inputs

DAC and relay selector

The internal DAC3, based on a Sabre ES9018K2M, adds a USB input handling PCM up to 384 kHz, native DSD up to 256x and DoP up to 128x, plus Toslink and S/PDIF inputs up to 192 kHz. The three RCA line inputs are switched by micro relays with gold-plated silver contacts and Return GND technology. The rear panel offers a line output and an unfiltered subwoofer output, and the valves have a 3-month warranty.

Reference 73756

Data sheet

Product Type: Integrated amplifier
Tube amplifier
Features: 47 kΩ input impedance
Feedback selectable 10 dB to 12 dB
Fixed bias, partially adjustable by the user
Infrared remote control
Relay input selector with Return GND technology
Brand: Unison Research
Integrated DAC: ESS ES9018K2M
Audio outputs: 1 RCA subwoofer output (stereo)
Line-level Sub Out, unfiltered
RCA Line Output
Speaker outputs
Number of channels: 2
Digital inputs: 1 x USB, 1 x S/PDIF, 1 x Toslink
Analog inputs: 3 RCA line inputs
Output power: 50 W in pentode mode, 30 W in triode mode, into 6 Ω
Color: Black
Technology: Output power valves: 4 x KT77 Gold Lion in push-pull
Signal valves: 2 x ECC83 Gold Lion and 1 x ECC82 Gold Lion
Hi-Res Audio: Toslink and S/PDIF: up to 192 kHz
USB: PCM up to 384 kHz, native DSD up to 256x, DoP up to 128x
Series: Triode 25 Black Edition
Nominal impedance: 6 ohms
Amplification technology: Class AB
Push-pull, ultralinear, Class AB
Triode or ultralinear mode (60% tap)
Power consumption: 300 W max.
Frequency response: 10 Hz - 50 kHz (-1 dB)
Width: 30.0 cm
Depth: 45.0 cm
Height: 20.0 cm
Unit weight: 20.0 kg