Unison Research Triode 25 Black Edition – a new tube-based integrated amplifier
26.10.2022 11:00 | ~1 minute read
The Italian company Unison Research has presented a special version of one of the company's most successful products – the Unison Research Triode 25 integrated amp. This version features an exclusive bronze finish, glossy black front panel and a body made of dark anodized metal.
According to the manufacturer, the Unison Research Triode 25 Black Edition has an optimized amplifier circuit - both in the signal path and in the power supply. The topology of the ground tracks and the physical separation of the channels were carried out with particular care. As far as possible, the audio signal is transmitted via shielded high-quality cables. The amplifier section has an adjustable bias voltage, and the feedback can be adjusted in two positions.
The Unison Research Triode 25 Black Edition integrated amplifier supports two output stage modes - triode and pentode. In triode mode, the amplifier raises a power of up to 30 Wt per channel, and in pentode mode - 50 Wt. The pre-amplification section uses two ECC83 Gold Lion dual triodes and one ECC82 Gold Lion. The output stages uses four KT77 Gold Lion tubes (a pair per channel), operating in push-pull mode. The Unison Research Triode 25 Black Edition integrated amplifier should soon go on sale in Europe at a recommended retail price of 4,299 euros.
Specifications
This product is in the Hi-Fi and High End Electronics and Acoustics database
Integrated amplifiers — Unison Research Triode 25 Black Edition
Model name
Triode 25 Black Edition
Type
AB tube Triode or Ultralinear
Analog inputs (balanced)
N/A
Analog inputs (single-ended)
3
Input sensitivity (mV)
N/A
Input impedance (balanced) (Ω)
N/A
Input impedance (single-ended) (Ω)
N/A
Output impedance (balanced) (Ω)
N/A
Output impedance (single-ended) (Ω)
N/A
D/A conversion
N/A
Phono MM/MC current-sensing input impedance (Ω)
N/A
Output power (8Ω) (W)
2 x 50 / 2 x 30 (pentode / triode mode)
Output power (4Ω) (W)
N/A
Gain (dBu)
N/A
Frequency response low +/- 3dB (Hz)
10
Frequency response high +/- 3dB (Hz)
50000
Signal to Noise Ratio (dB)
N/A
Total Harmonic Distortion + Noise (%)
N/A
Damping factor
N/A
Dimensions (mm)
300 x 450 x 200
Weight (kg)
20
Official link
Image from https://unisonresearch.com/
More content
Sennheiser ACCENTUM Open — New Affordable TWS Headphones from a Famous Company
Sennheiser has introduced the Sennheiser ACCENTUM Open TWS headphones – the model, designed in a stylish compact design, promises, according to the manufacturer, exceptional comfort during use and a secure fit.
Ranieri Audio Labs Varieta – a Preamplifier for Tube-Rolling
The Ranieri Audio Labs Varieta preamplifier has been released – the model uses directly heated triodes and allows for a wide range of tubes (300B, 2A3/6A3, 12A/201A, 26, 30, 31, 45, 50, 71A, 801A/10Y, 275A/252A, 245 and 842/VT52 will do). Simply ideal for those wishing to experiment with tube rolling.
Accuphase C-57 — Balanced Phonostage with Dual Mono Topology
Accuphase has introduced the Accuphase C-57 phono preamplifier, based on a fully balanced circuit design from output to input with dual mono topology. The Accuphase C-57 also uses a two-stage solution: the first stage is the output stage to ensure matching with MM and MC cartridges, the second stage is the correction amplifier itself.
Goldmund Rhea and Theia are Now Available in Passive Versions
Last year, Goldmund launched the impressive Goldmund Rhea and Theia acoustics in active versions with a wireless streamer. The all-in-one solution certainly looked brilliant, but High-End fans often prefer component systems. So now the company has introduced the Goldmund Rhea and Theia loudspeakers in a Passive version.
Stratton Acoustics Element 6 and Element 8 – Acoustics with Patented Tweeters
Stratton Acoustics has introduced two models of compact bookshelf loudspeakers – Element 6 and Element 8. Both speakers use the company’s patented soft dome tweeters with a diameter of 29 mm, equipped with a waveguide to provide wide sound dispersion. The models are hand-assembled at the company’s own factory in England.
