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Fezz Audio Mira Ceti 300B

Name: Fezz Audio Mira Ceti 300B
Brand: Fezz Audio
SKU: fezz-mira-ceti-300b-evolution
Rating: 4.6 (14 reviews)

View at Fezz Audio

The Mira Ceti 300B is one of the few Single Ended (SE) tube amplifiers in the world made with toroidal speaker transformers. It is characterised by an outstanding, saturated midrange, dynamics and a solid bass base. It is the essence of analogue sound – its enchanting timbre amazingly realistically reproduces vocal, classical and jazz music.

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Overall Score 91/100

Deliciously Crispy

Fezz Audio Mira Ceti 300B — refined 300B single-ended warmth

The Mira Ceti 300B is a single-ended, toroidal-transformer tube integrated that pairs classic 300B warmth with unexpectedly agile dynamics and a very wide soundstage. Reviewers including Tomasz Karasiński, The Ear and David Neice highlight its dense, organic midrange, delicate treble and surprising low‑end control for an 8W SET. Dynamics and imaging are standout strengths, revealing fine detail and roomy staging when matched with compatible speakers. The chassis and fit-and-finish reflect Red Dot–level design and practical touches (automatic bias, optional cage, remote and Bluetooth). Ideal for listeners who favour articulate vocals, acoustic ensembles and immersive soundscapes, the Mira Ceti rewards careful speaker pairing and offers notable value for a high‑quality 300B implementation.

Wall of Sound

"This experience is immersive in the extreme. From the very first notes you just want to shut down any critical mind function that you might be having – and listen."

The Ear

"There is a magic to the sound of a good 300B powered valve amp, and the Fezz Mira Ceti 300B had that in spades."

StereoLife Magazine

"The sound was still warm, but far from cloying or dripping with caramel. Dense, but at the same time dynamic and transparent."

Pros

Lush, organic midrange and musicality characteristic of top 300B single-ended designs.
Outstanding soundstage and imaging — wide, deep presentation with clear instrument placement.
High-quality industrial design and useful conveniences (automatic bias, optional cage/remote, Bluetooth) that aid usability.

Cons

Demands careful speaker matching — can sound overly sweet or lack headroom with inappropriate, very low-efficiency speakers or when pushed very loud.
Minor ergonomic and build details flagged (tube-cage mounting and acrylic front may scratch or fit imperfectly).

Sound Quality

91/100

Dynamics

89/100

Despite only ~8W per channel, reviewers repeatedly praise its ability to convey punch, slam and transient detail ('powerful, open, dynamic', 'convey the crack and weight of a tom tom'). Comments that it drove relatively inefficient speakers and handled complex percussion and tight bass lines justify a strong dynamics score for a low-power SET design. Some reviewers note triode harmonic coloration that sweetens dynamics rather than the brute force of a high-power solid-state amp, so score reflects excellent dynamics for topology and power.

Soundstage Imaging

95/100

All three reviews praise the amp's staging and imaging — 'soundstage opened up', 'sensational reproduction of the acoustics', 'immersive in the extreme' and images appearing to the sides and even behind the listener. The consistent descriptions of wide, deep and very well-defined imaging support a near-reference-level score for soundstaging in its class. The unit's ability to present space around instruments and precise placement is emphasized across reviews.

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Build Quality

92/100

Reviewers commend the Mira Ceti's solid, award-winning industrial design and precise assembly ('quality feel and look', 'Red Dot award', 'heavy, confidence-inspiring'). Reports of very low noise floor and quiet operation ('dead quiet', deep black background) also point to good component selection and layout. The inclusion of practical touches such as a protective cage and automatic biasing rounds out a high build-quality impression.

Features Connectivity

83/100

The Mira Ceti is essentially minimalist: three RCA line inputs, speaker taps for 4/8 ohm and a front input selector/volume control. Useful conveniences noted are Bluetooth selectable on input 3 and a remote control, which modestly raise its connectivity beyond barebones. No balanced inputs, phono stage, DAC, headphone output or network streaming were reported, so features score remains modest above the minimal baseline.

Value for Money

93/100

All reviews frame the Mira Ceti as strong value for its price and capabilities ('excellent value for money', 'complete no-brainer' at the reviewed price, 'affordable and offers that 300B SET magic'). Given consistent praise across publications that the amp delivers high-end 300B performance without extreme pricing, the item merits a clear value endorsement. Price context (MSRP and GBP/EUR/CAD figures cited by reviewers) supports this positive value assessment.