Unison Research Triode 25 Tube Amplifier
Best tube amplifier for audiophiles seeking versatile, high-fidelity sound performance.
This amplifier masters the delicate balance between raw power and sonic intimacy. By letting you toggle between the punchy authority of Pentode mode and the refined, liquid warmth of Triode, it offers two distinct personalities in one chassis for those who refuse to compromise on their listening experience.
$4499.00
at
Verdant Audio
Who it's for
- Music lovers prioritizing long-term, fatigue-free listening sessions
- Audiophiles seeking both intimate warmth and powerful dynamic range
- Design-conscious listeners wanting a beautiful, high-end centerpiece
Who should skip it
- Budget-focused buyers wary of recurring maintenance expenses
- Owners of low-sensitivity speakers requiring high-wattage amplification
- Users with limited space or enclosed furniture setups
Performance breakdown
Sonic Versatility
Switchable Triode and Pentode modes offer distinct, high-fidelity sound profiles.
Power Delivery
Robust 45-watt output handles demanding speakers with impressive authority and control.
Distortion Control
Advanced push-pull circuitry maintains exceptional clarity even at higher volume levels.
Build Integrity
Substantial 20kg chassis ensures long-term stability and resonance-free audio performance.
Tube Efficiency
Optimized design extends EL34 lifespan while delivering consistent, warm harmonic richness.
Connectivity Precision
Standardized RCA and banana plug inputs ensure seamless integration with high-end systems.
Key Specs
Output Stage
Push-pull, ultralinear, Class-AB
Output Power
Approx. 45 watt per channel (Pentode), Approx. 25 watt per channel (Triode)
Output Impedance
6 Ohm
Input Impedance
47 kOhm / 50 pF
Negative feedback
5 dB or 1.8 dB
Valve complement
2 x ECC83 (12AX7) 1 x ECC82 (12AU7) 4 x EL34 (6CA7)
Power Consumption
300 watt max
Fuses
T6.3A from 100V to 130V T3.15A from 220V to 250V
Dimensions
30 cm x 45 cm x H. 20cm
Net weight
20 Kg
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