Fezz - Mira Ceti 300B Review: A Single-Ended Masterpiece

In this Fezz - Mira Ceti 300B Review, we dive deep into one of the most evocative single-ended tube amplifiers available today. Manufactured by Fezz, a name synonymous with bespoke, high-end designs, the Mira Ceti 300B integrates toroidal speaker transformers to deliver an experience that captivates purists and newcomers alike.

Design & Build: Custom-Built Elegance

The Mira Ceti 300B is a fully built-to-order integrated tube amplifier with an approximate six-week lead time. Each unit is customised with a choice of premium finishes and optional modules, allowing you to tailor both aesthetics and functionality. The chassis dimensions (420 x 380 x 200mm) and 19.5kg weight give it a substantial, reassuring presence in any hi-fi setup.

Gallery: Exquisite Finishes

Signature Sound: Warmth, Dynamics & Midrange Magic

The Mira Ceti’s single-ended 300B output stage, paired with 6SN7 preamplifier tubes, embodies the essence of analogue sound. Its toroidal speaker transformers minimise core saturation, yielding a richly saturated midrange that breathes life into vocals, jazz ensembles and acoustic recordings. Despite its modest 8W per channel, dynamic contrasts remain punchy and uncoloured, with bass foundations surprisingly solid for an SE design.

Technical Highlights

• Type: Stereo vacuum tube amplifier
• Output Power: 2 x 8W into 4Ω/8Ω
• Total Harmonic Distortion (THD): < 0.4% with automatic autobias
• Transformer Topology: Toroidal speaker transformers for minimal distortion
• Tubes: 2 x 300B (power), 2 x 6SN7 (preamp)
• Power Consumption: 115W, AC Fuse: 3.15A T
• Dimensions: 420 x 380 x 200mm, Weight: 19.5kg

Built to Your Taste: Finish Options & Add-Ons

Fezz offers an array of optional modules to complement your Mira Ceti 300B at build time:

• RC – Motorised volume control (± only)
• HT Pre Input – Use as a power amp in existing home theatre systems
• BT – Bluetooth 5.0 module for wireless streaming
• SO – Subwoofer line out (2 x RCA)

Who Is It For?

This amplifier is ideally suited to the discerning listener who values:

• Rich, natural tonal balance with a focus on vocal and acoustic authenticity
• Small to medium listening environments paired with high-efficiency speakers (≥ 94dB)
• A bespoke aesthetic that complements their décor
• Hands-on analogue interaction with modern reliability

Pros & Cons

• Pros:
  • Exquisite midrange clarity and enchanting timbral nuance
  • Robust, controlled bass response for a single-ended amp
  • Rich, harmonically complex presentation with dynamic poise
  • Fully customisable with premium finishes and modules
  • Automatic autobias for ease of use and tube longevity
• Cons:
  • Limited power output suits high-sensitivity speakers best
  • Bespoke build process requires a longer lead time (~6 weeks)
  • Basic input switching – external preamp may be needed for extensive systems

Elevate Your Analogue Journey

Experiencing the Fezz Mira Ceti 300B is more than listening; it’s an immersion into analogue authenticity. The synergy of toroidal transformers, premium 300B tubes and bespoke finishes makes each unit a personalised sonic companion. For tailored advice or system matching, speak to our team at The Audio Tailor on 1300 308 711 or email sales@theaudiotailor.com.au.

Ready to place a bespoke order or learn more? Head to our Fezz Mira Ceti 300B Product Page and embark on your next high-end audio adventure.