Unison Research Triode 25 Black Edition Tube Integrated Amplifier

$3,659.39 $5,999.00

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The Triode 25 Black Edition celebrates Unison Research's most successful integrated amplifier with enhanced circuitry and a striking piano black aesthetic. Delivering 50 watts in pentode mode or 30 watts in triode mode, the Triode 25 Black Edition features Gold Lion valves, an integrated DAC with USB input supporting PCM up to 384kHz and native DSD256, and the flexibility to fine-tune feedback and bias to match your speakers and preferences.

KEY FEATURES

Dual Operating Modes: Switch between 50W pentode and 30W triode for different speaker loads and sonic preferences
Gold Lion Valves: Premium 2x ECC83, 1x ECC82 signal tubes and 4x KT77 power tubes in push-pull configuration
Integrated DAC3: USB (PCM to 384kHz, DSD native to 256x, DoP to 128x), Toslink, and SPDIF up to 192kHz
Adjustable Feedback: Select 10dB or 12dB feedback to tune damping and tonal character
User-Adjustable Bias: Fine-tune power tube operation for optimal performance
Subwoofer Output: Unfiltered RCA output maintains the amplifier's sonic signature

BLACK EDITION UPGRADES

The Black Edition features revised signal path and power management circuitry for lower distortion and increased headroom. The input selection uses micro relays with Return GND technology, matching the approach used in Unison Research's reference components. The premium piano black wood front panel and gun metal finish make a visual statement.

FLEXIBLE CONNECTIVITY

Three analog RCA inputs handle traditional sources, while the built-in DAC3 adds three digital inputs for streaming, computer audio, and optical sources. Pair with high-sensitivity speakers to experience the full potential of this amplifier. The subwoofer output lets you integrate a sub while maintaining the Triode 25's tube character throughout the bass range.

THE LISTENING ROOM DIFFERENCE

We are a third-generation family business with a brick-and-mortar showroom in Chestertown, Maryland. We bring decades of experience, personalized service, and honest guidance to every interaction.

SPECIFICATIONS

Specification	Detail
Output Power	50W (pentode) / 30W (triode)
Frequency Response	10Hz - 50kHz (-1dB)
Signal Valves	2x ECC83 + 1x ECC82 Gold Lion
Power Valves	4x KT77 Gold Lion (push-pull)
Operating Class	Class AB, ultralinear with 60% tap
Analog Inputs	3x RCA line
Digital Inputs	USB, SPDIF, Toslink
Outputs	Stereo RCA subwoofer, line out
Feedback	Selectable 10dB / 12dB
Dimensions (W x H x D)	30 x 20 x 45 cm (11.8" x 7.9" x 17.7")
Weight	20 kg (44 lbs)

Made with care

Great value

Elegant design

Quality materials

This product is crafted with quality materials to ensure durability and performance. Designed with your convenience in mind, it seamlessly fits into your everyday life.

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