Power amplifiers stereo — Fezz Audio Fezz Mira Ceti 2A3

The Fezz Mira Ceti 2A3 is a distinctive single-ended-triode stereo power amplifier from Fezz Audio, built around the celebrated 2A3 output tube with a minimal power output. The Fezz Mira Ceti 2A3 brings Fezz Audio's most storied engineering heritage to dedicated single-ended-triode power amplification.

Key specs that matter

Output power is a minimal 2 x 3W into 8 ohms - a classic single-ended-triode figure reflecting the 2A3 tube's characteristic power ceiling, even more modest than the Lybra 300B. Frequency response spans a wide 10Hz to 56,000Hz within plus-or-minus 3dB. Total harmonic distortion plus noise is under 0.25% at 100% global feedback. Maximum power consumption is 90W. At 340 x 360 x 215mm and 19.5kg, the Fezz Mira Ceti 2A3's considerable weight reflects serious internal transformer engineering consistent with quality single-ended-triode design.

Sound and use context

Expect the exceptionally rich, harmonically resonant character single-ended-triode 2A3 amplification is broadly celebrated for among tube enthusiasts, with the minimal 3W-per-channel output requiring high-efficiency loudspeakers.

Pairing

The minimal 3W-per-channel output requires high-efficiency loudspeakers, typically horn-loaded or high-sensitivity designs exceeding 95dB.

Alternatives

Fezz Audio's own Fezz Lybra 300B offers a related single-ended-triode alternative with considerably greater power built around the 300B tube.