Decware
Zen Triode SE84UFO
Introduced 2014$1,795 MSRP
Hand-built two-watt single-ended triode amplifier from Decware in Illinois, using SV83 output tubes with zero negative feedback and a lifetime warranty. Best matched to high-sensitivity speakers.
MSRP
$1,795
Used market · Excellent
$1,100est.
-39% vs MSRP
as of Aug 15, 2026MSRP to used market
From $1,795 at launch to $1,100 today (estimated).
Specifications
- Type
- integrated (tube, single input)
- Inputs
- 1 line RCA (volume control)
- SNR
- 90 dB
- Outputs
- 4 and 8 ohm speaker posts
- Topology
- Single-ended triode-strapped SV83, Class A, zero feedback
- Weight
- 13 lbs
- THD
- 1%
- Power output
- 2.3W/ch into 4/8 ohms
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