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Chord Electronics BerTTi
BerTTi is a fully balanced 75-watt stereo power amplifier benefitting from the latest ULTIMA dual-feed-forward topology. Extending the range of ULTIMA-technology Chord Electronics amplifiers, BerTTi makes full use of advanced error-correction technology which monitors and immediately corrects signals before the output stage for astonishing accuracy and unrivalled fidelity from a compact-chassis device.
BerTTi features both balanced and unbalanced inputs, high-quality gold-plated loudspeaker outputs, plus a 10 A IEC power inlet. Further features include two modified power supplies for increased performance, plus an additional auxiliary power rail for the front end, which provides extra voltage to drive the custom-made MOSFETs.
British-built, BerTTi brings the next-generation ULTIMA topology to the ground-breaking Table Top (TT) range. When combined with the resolving power of the award-winning Hugo TT 2 DAC/preamp, the duo offers new levels of sonic performance from a small system. The addition of the Hugo M Scaler upscaler, with the ability to upscale audio to 705.6 kHz, 16x CD’s native resolution, makes the three-box system truly class-leading.
Inputs:
1x stereo pair of balanced XLRs
1x stereo pair of gold-plated unbalanced RCA
Output:
1x pair of gold-plated speaker terminals
Key Features
Trickle down ULTIMA tech
Dual feed-forward error correction
Fully balanced system
HF Switch mode power supply
Proprietary MOSFET
Compact design
Solid Aluminium Chassis
Included Accessories
Bertti Quickstart guide
Safety instructions
10A Mains IEC cable
WATT RECOMMENDS
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Professional Reviews 93/100
Deliciously Crispy
Sound Quality
94/100
Build Quality
93/100
Value for Money
88/100
With neutral tonality, tight bass control and a spacious, highly organised soundstage, the BerTTi feels far bigger than its compact frame suggests. Simon Lucas admired its vivid detail and seamless balance, while David Price praised its clean, grippy presentation and excellent build. It’s a precision amplifier that rewards listeners who value clarity, rhythm and composure.
What Reviewers Are Saying
Pros
Exceptionally clean, detailed and neutral sound with strong low-end authority and natural tonal balance.
Creates a large, organised soundstage with precise imaging and easy-to-follow layering.
Excellent rhythmic grip and composure, staying controlled even at high volume.
Superb build quality in a compact, cool-running chassis with useful balanced and unbalanced inputs.
&
Cons
Its lean, crisp sound is more matter-of-fact than romantic, so it may not flatter warm or lush recordings.
Despite its refinement, it can lack the sheer power and weight of some larger, more muscular rivals.
SOUND QUALITY PERFORMANCE 94/100
Reviewers consistently describe the BerTTi as exceptionally clean, detailed, and musically assured. It is praised for its neutral tonal balance, its ability to reveal low-level information, and a presentation that stays composed and natural even at high volume.
Transparency Resolution
96/100
The BerTTi is repeatedly described as unerringly clean, detailed, and highly revealing. Reviewers praise its crystal-clear midband, fanatical detail retrieval, and its knack for picking out fine harmonic and spatial information without adding haze.
Tonal Balance Musicality
93/100
Its tonal balance is described as supremely neutral, naturalistic, and convincing, with no sense of overcooking or underplaying the music. One reviewer calls it lean and crisp rather than romantic, but also notes that it remains smooth, non-fatiguing, and consistently listenable.
Dynamics
95/100
Despite modest power ratings on paper, reviewers say it has serious grip and keeps dynamic swings intact without stress. It is credited with strong bass authority, metronomic rhythmic precision, and the ability to track quiet-to-loud changes faithfully while staying composed.
Soundstage Imaging
94/100
The BerTTi is said to create a large, organised, open soundstage with images locked in place but still interacting naturally. Reviewers highlight its clear layering and its ability to keep the performance tangible and easy to follow.
Assessments of Build Quality, Usability, and Overall Propositions.
Build Quality
93/100
Reviewers praise the BerTTi’s superb build and finish, calling it beautifully made and precision-machined from aircraft-grade aluminium. They also note practical touches such as balanced and unbalanced inputs, speaker terminals, a 12V trigger, cool running, and the compact chassis layout.
Value for Money
88/100
At its asking price, reviewers present it as a convincing and justifiable purchase rather than a bargain. One calls it a thrillingly capable device that makes an extremely sturdy case for costing what it does, while another still notes that cheaper rivals can offer more sheer muscle.
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Verified Dealers
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Authorized dealers for Chord Electronics BerTTi
- Absoulute Audio plus Video — in-store — Aiken, South Carolina, United States (website)
- In Living Stereo — in-store — New York City, New York, United States (website)
- The Music Room — online and in-store — Erie, Colorado, United States (website)
- 110Hz — online and in-store — Kielce, Województwo świętokrzyskie, Poland (website)
- Accent On Music — in-store — Mount Kisco, New York, United States (website)
- Acoustic Designs Inc. — in-store — Scottsdale, Arizona, United States (website)
- Acoustic Sounds — online and in-store — Salina, Kansas, United States (website)
- Acoustic Streams — in-store — Lower Drift, England, United Kingdom (website)
- Acoustica — online and in-store — Chester, England, United Kingdom (website)
- Ajasom — in-store — Amadora, Lisboa, Portugal (website)
and 200 more verified dealers