Unison Research Triode 25 Integrated Amplifier
Best tube amplifier for audiophiles seeking versatile, high-fidelity sound.
This push-pull tube amplifier offers the rare luxury of switching between the raw, dynamic punch of Pentode mode and the intimate, nuanced warmth of Triode. It is a sophisticated centerpiece for your system, though you will need to embrace its substantial, heavy-duty footprint to enjoy such refined sonic versatility.
$4999.00
In stock
at
Ear Drum Audio
Who it's for
- Design-conscious listeners wanting a sophisticated visual statement piece
- Audiophiles seeking customizable sound profiles for different musical genres
- Music lovers craving the classic, rich warmth of vacuum tubes
Who should skip it
- Listeners with low-sensitivity speakers requiring high-wattage amplification
- Budget-focused buyers wary of recurring tube replacement expenses
- Users with small, poorly ventilated rooms or heat-sensitive setups
Performance breakdown
Sonic Versatility
Switchable triode and pentode modes offer two distinct, high-fidelity sound profiles.
Build Integrity
Substantial twenty-kilogram chassis ensures resonance-free performance and long-term durability.
Connectivity Integration
Built-in USB DAC simplifies digital streaming without sacrificing analog warmth.
Power Delivery
Robust EL34 tubes provide ample headroom for driving most demanding speakers.
System Flexibility
Dedicated sub and tape outputs allow for seamless multi-component system expansion.
Harmonic Purity
Advanced circuit design minimizes odd-order distortion for a natural, liquid presentation.
Key Specs
Output Power
Approx. 45 watt per channel in Ultralinear (Pentode) configuration. Approx. 25 watt per channel Triode configuration
Output Impedance
6 Ohm
Inputs
4 Line (1 Tape), 1 USB DAC
Input Impedance
47 kOhm / 50 pF
Outputs
1 Tape out, 1 Sub Out
Negative feedback
5 dB or 1.8 dB
Valve complement
2 x ECC83, 1 x ECC82, 4 x EL34
Power Consumption
300 watt max
Know before you buy
Still have a question?
Ask Metto anything about the Unison Research Triode 25 Integrated Amplifier before you decide.
