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50 W ×2 (Pentode) / 30 W ×2 (Triode) • Push‑Pull KT77 Tube Output • Full Digital & Analogue Inputs • Elegant Black Finish
The Unison Research Triode 25 Black Edition advances the acclaimed Triode 25 platform with enhanced circuitry, improved power supply design, and updated digital connectivity. It offers selectable Pentode (50 W per channel) or Triode (30 W per channel) modes, giving listeners flexibility between dynamic power and refined tube character.
With Gold Lion tubes, micro‑relay input selectors, Return‑GND technology, and built‑in DAC3 module (USB, S/PDIF, Toslink), the Black Edition merges classic tube warmth with modern versatility. Handcrafted in Italy in a piano‑black aesthetic, it is as striking visually as it is audibly.
Push‑Pull KT77 Output Stage — Provides 50 W (Pentode) or 30 W (Triode) with high linearity.
Gold Lion Tubes — 2 × ECC83 and 1 × ECC82 for the pre‑amp section, and 4 × KT77 in the power section.
Modern DAC3 Module — USB up to PCM 384 kHz, DSD up to 256; S/PDIF and Toslink also included.
Return‑GND Input Selector & Micro Relays — Ensures ultra‑clean signal routing and channel separation.
“Triode 25 Black Edition takes what was already great and raises the bar — deeper dynamics, more clarity.”
“Modern inputs plus old‑school tubes — perfect balance of heritage and relevance.”
50 W per channel in Pentode mode; 30 W per channel in Triode mode.
USB (PCM up to 384 kHz / DSD up to 256x), Toslink and S/PDIF coaxial.
30 × 45 × 20 cm (W × D × H) and approx. 20 kg.
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