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Unison Research - Black Edition - Triode 25 BE
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UR-Triode-25BE
Unison Research - Black Edition - Triode 25 BE is available to buy in increments of 1
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Unison Research - Black Edition - Triode 25 BE
The Unison Research Triode 25 Black Edition reimagines a beloved classic with enhanced technical refinement, modern connectivity, and elegant Italian design. Built on a push-pull, ultralinear Class-AB topology and featuring premium Gold Lion valves throughou two ECC83 and one ECC82 for signal stages, and four KT77s in the output section this integrated tube amplifier delivers both power and finesse. In triode mode it offers 30 watts per channel for richly detailed, harmonic-rich performance; switch to pentode mode for 50 watts of robust, dynamic output.
The Black Edition builds on Unison’s meticulous engineering with adjustable bias and feedback, an advanced relay-based input selector with Return GND technology for superior channel separation, and a refined signal path that emphasizes clarity and control. A comprehensive array of inputs spans three analog RCA line inputs plus digital sources via USB (PCM up to 384 kHz, DSD up to 256 native/128 DoP), coaxial SPDIF, and optical Toslink, while an unfiltered subwoofer output retains the amplifier’s natural timbre for low-frequency extension.
All this sits behind a striking piano-black wood front panel and dark gun-metal chassis that express both performance and timeless style.
FEATURES:
- Push-pull ultralinear Class-AB tube amplification
- Dual operating modes: Triode (30 watts) and Pentode (50 watts)
- Premium Gold Lion tubes (ECC83, ECC82, KT77)
- Adjustable bias and selectable feedback
- Advanced relay input selector with Return GND technology
- Three analog RCA line inputs plus USB, SPDIF, and Toslink
- Unfiltered subwoofer output preserves sonic character
- Elegant piano black wood panel and dark metal finish
SPECIFICATIONS:
| Product Type: | Integrated tube amplifier |
| Output Power (Triode): | 30 watts per channel |
| Output Power (Pentode): | 50 watts per channel |
| Operating Modes: | Triode or ultralinear (tap at 60 %) |
| Signal Tubes: | 2 × ECC83 Gold Lion, 1 × ECC82 Gold Lion |
| Power Tubes: | 4 × KT77 Gold Lion (push-pull) |
| Polarization: | Class-AB |
| Analog Inputs: | 3 × RCA line level |
| Digital Inputs: | USB, SPDIF (coaxial), Toslink optical |
| Subwoofer Output: | 1 × stereo RCA (unfiltered) |
| Line Output: | 1 × line RCA |
| Feedback: | Selectable 10 dB or 12 dB |
| Frequency Response (-1 dB): | 10 Hz – 50 kHz |
| Dimensions (H × W × D): | 12" × 18" × 8" (30.4mm x 45.7mm x 20.3mm) |
| Weight: | 47 lbs (21.3kg) |
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