Leema Acoustics Neutron preamp/DAC
Leema’s Neutron preamp/DAC pairs neutral precision with authoritative bass, serving up a broad, crisply focused soundstage and finely resolved detail without edge. Its ESS Sabre DAC, MM/MC phono stage and expansive analogue/digital connectivity make it a remarkably versatile control centre. What Hi-Fi? found its composed, analytical character especially rewarding with carefully matched sources.
WATT RECOMMENDS
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Nicely Roasted
Sound Quality
89/100
Build Quality
88/100
Features Connectivity
93/100
Value for Money
91/100
Pros
Big, even-handed presentation with strong authority, controlled bass and subtle detail resolution.
Large, expansive soundstage with crisp image focus and composure during complex music.
Exceptional flexibility: MM/MC phono stage, ESS Sabre DAC, headphone output, balanced input and extensive digital connectivity.
Cons
Analytical balance can feel less emotionally involving and less propulsive than leading integrated rivals.
Transparent presentation exposes shortcomings in recordings and upstream sources, demanding careful system matching.
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What Reviewers Are Saying
SOUND QUALITY PERFORMANCE 89/100
The Neutron is described as big, even-handed and authoritative, with substantial detail delivered without artificial edge. It favours neutrality, control and analysis over overt warmth or emotional luxuriance, while producing a large, sharply focused stereo image.
Transparency Resolution
91/100
What Hi-Fi finds plenty of detail, rendered subtly rather than pushed forward through hardness or sharpness. The review also calls the presentation transparent enough to expose flaws in recordings and upstream sources, and notes strong detail resolution through the phono input.
Tonal Balance Musicality
88/100
The presentation is praised for its neutral, balanced and notably even tonal character, without spotlighting a particular frequency range. Its principal reservation is that it appeals more to the head than the heart, making it less suited to listeners seeking a richly indulgent or romantic presentation.
Dynamics
87/100
The review praises the system's scale, authority and control, with big, brawny bass capable of real rumble and impact. However, it says the combination does not communicate musical momentum quite as effectively as leading integrated rivals.
Soundstage Imaging
91/100
Stereo imaging is identified as a particular strength. The review reports a large, expansive soundstage with crisp image focus, supporting an orderly and spacious presentation.
Assessments of Build Quality, Usability, and Overall Propositions.
Build Quality
88/100
What Hi-Fi reports no build-quality concerns, describing the Neutron and partnering Graviton as solid and well made. The reviewer notes that the products retain the character of a smaller specialist manufacturer, rather than presenting the finish of a large multinational brand.
Features Connectivity
93/100
The Neutron is unusually comprehensive for a stereo preamp, combining a switchable MM/MC phono stage, ESS Sabre DAC, DSD256 support and a headphone output. Connections include four RCA line inputs, one balanced XLR input, three optical inputs, three coaxial inputs, asynchronous USB and trigger output.
Value for Money
91/100
At roughly £1,500–£2,250, the Neutron sits in a competitive premium stereo segment, but the review explicitly applauds Leema for offering a pre/power proposition at a price where many rivals offer only integrated amplifiers. Its extensive digital, analogue and phono facilities further strengthen its appeal against similarly priced separates.
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Professional reviews and sources for this product's Watt'n Potatoes analysis.
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Specifications
- Frequency response (pre-amp)
- (20Hz-20kHz/100kHz) +0.0 to –0.01dB/–0.45dB
- Distortion
- (20Hz-20kHz; 0dBV/0dBFs) 0.00006-0.0004% / 0.0011-0.015%
- Unbalance (RCA) inputs
- 4 x Line level inputs
- Balanced (XLR) inputs
- 1 x XLR input
- Phono stage type
- MM / MC
- Coax SPDIF 75 ohm digital inputs
- 3 x SPDIF >192kHz
- Optical SPDIF
- 3 x Toslink >96kHz
- USB
- 1 x asynchronous USB interface >192kHz
- DAC type
- 1 x ESS Sabre 9018
- Jitter
- (USB at 48kHz/96kHz) <5psec / 20psec
- Trigger output
- Yes
- Dimensions
- 440x109x325mm
- Weight
- 5kg
Manufacturer's Description — Leema Acoustics
The Neutron preamplifier is a cutting edge design capable of handling multiple analogue and digital sources.
Provision is made for MM and MC cartridges via a high quality on board RIAA phono stage, the preamp features four RCA analogue inputs and a pair of balanced XLR inputs.
For flexibility each of the analogue inputs can be assigned as Home Theater bypass.
Within the digital world we cater for three S/PDIF optical inputs, three S/PDIF coaxial inputs and a USB input with conversion performed by carefully chosen low jitter ESS-Sabre DAC.
Audio can delivered to a power amplifier via either XLR or RCA terminals, for completeness we have also included two dedicated subwoofer outputs.
The super clean low noise circuit design is based on years of audio engineering experience, the circuit layout is optimised to minimise inter channel cross-talk and reduce distortion regardless of digital or analogue input selection.
This ultra high quality design is also incredibly quiet allowing the Neutron to uncover low level musical details with absolute accuracy.
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- 110Hz — online and in-store — Kielce, Województwo świętokrzyskie, Poland (website)
- Acoustica — online and in-store — Chester, England, United Kingdom (website)
- Acton Gate Audio — online and in-store — Cymru, United Kingdom (website)
- Alpha High End — online and in-store — Brasschaat, Vlaams Gewest, Belgium (website)
- Analogue Seduction — online and in-store — Whittlesey, England, United Kingdom (website)
- Audio Affair — online and in-store — Deritend, England, United Kingdom (website)
- Audio Emotion — online and in-store — Glenrothes, Scotland, United Kingdom (website)
- Audio Sanctuary — in-store — London, England, United Kingdom (website)
- Audio Solutions - AU — online and in-store — Mascot, New South Wales, Australia (website)
- Audio T — online and in-store — Cheltenham, England, United Kingdom (website)
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