Leema Acoustics Hydra II Anniversary
Leema’s Hydra II Anniversary marries vice-like speaker control with valve-like vocal warmth, delivering deep, finely defined bass, effortless dynamics and a stable three-dimensional stage. Hi-Fi Choice highlights its poised refinement, while The Audiophile Man praises its transparent midrange insight and layered imaging. Dual-mono muscle, bridgeable flexibility and low-noise finesse make it a compelling high-end powerhouse.
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Deliciously Crispy
Sound Quality
93/100
Build Quality
93/100
Value for Money
88/100
Pros
Deep, tightly controlled bass combines speed, definition and convincing resonance without overwhelming the balance.
Highly resolving, natural vocal and midrange presentation reveals subtle textures while retaining warmth and ease.
Powerful dynamics and low-noise control create a spacious, stable, deeply layered soundstage.
Substantial dual-mono construction, bridgeable operation and balanced/single-ended connectivity offer serious system flexibility.
Cons
Rear-panel configuration involves recessed buttons and small switches that reviewers found fiddly; some toggles may be easy to disturb.
In one review, balanced input sounded smoother but less immediate and engaging than the preferred single-ended connection.
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What Reviewers Are Saying
SOUND QUALITY PERFORMANCE 93/100
Reviews portray the Hydra II Anniversary as a powerful but unusually nuanced solid-state amplifier. It combines confident low-frequency control and effortless scale with fine vocal insight, a balanced tonal outlook and a spacious, layered presentation; the main caveat is that the balanced input was found less involving than the preferred single-ended connection in one listening test.
Transparency Resolution
93/100
The Audiophile Man heard subtle vocal breaths, inflections, texture and grit clearly, describing substantial transparency, detail and midrange insight. Hi-Fi Choice similarly reports significant new musical insights, subtle micro-textures and sophisticated signal handling that places instruments convincingly in space.
Tonal Balance Musicality
92/100
Reviewers find a neutral, balanced and refined character that remains musically expressive rather than clinical. Hi-Fi Choice praises naturally warm, almost valve-like vocal fluidity and sweet texture, while The Audiophile Man calls it both strong and delicate; however, its balanced mode was considered smoother but slightly artificial and less engaging than single-ended operation.
Dynamics
94/100
The Hydra's control and reserves are a recurring strength. Hi-Fi Choice describes seemingly unburstable power, effortless large-scale dynamic swings and a presentation that improves as volume rises, while The Audiophile Man finds percussion powerful yet detailed and bass confident without becoming overbearing.
Soundstage Imaging
93/100
Both reviews hear a stable, dimensional and well-organised soundstage. Hi-Fi Choice describes an intimate but highly stable three-dimensional soundscape and believable acoustic space, while The Audiophile Man notes extra air, focused imagery and complex 3D layering extending behind the speakers.
Assessments of Build Quality, Usability, and Overall Propositions.
Build Quality
93/100
The 18kg dual-mono amplifier uses two large toroidal transformers and is consistently described as solid, substantial and carefully engineered. Reviewers also note substantial machining, cooling fins, balanced and single-ended inputs, bridgeable monoblock operation and LIPS integration, although several recessed buttons and small mode switches can be fiddly and potentially easy to disturb.
Value for Money
88/100
The quoted UK retail price was £4,795, placing it in a serious high-end power-amplifier bracket, but reviewers present its weighty construction, flexibility and performance as credible justification for that outlay. The Audiophile Man also notes that prices varied substantially, with ex-demonstration examples around £2,995 potentially representing a particularly attractive buy; neither review offers a detailed direct comparison with rival amplifiers at retail.
Reviews & Sources
Professional reviews and sources for this product's Watt'n Potatoes analysis.
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Specifications
- Power rating
- OUTPUT POWER IN NON-BRIDGED MODEOutput Power: 148W rms 8 Ohms/ChOutput Power: 292W rms 4 Ohms/ChOutput Power: 320W rms 2 Ohms/Ch OUTPUT POWER IN BRIDGED MODEOutput Power: 392W rms 8 Ohms/ChOutput Power: 785W rms 4 Ohms/Ch
- Distortion
- 0.004% @ 90% rated output
- Noise floor
- < -100 dB
- Frequency response
- 5 Hz - 80 kHz (+0/-3 dB)
- Balanced Inputs
- 1 x XLR pair
- Number of un-balanced inputs
- 3 x RCA pair
- Number of pre outputs
- 1 x RCA
- Thermal protection
- Yes
- LIPS® implementation
- LIPS® system: Master or Slave
- Dimensions
- 440*320*110mm
- Weight
- 18kg
Manufacturer's Description — Leema Acoustics
The Hydra II Anniversary Edition, a powerhouse stereo power amplifier, offering unmatched flexibility.
With its dual-mono design featuring massive toroidal power transformers and refined output stages, it ensures precise control and gripping performance, even at high levels.
Upgrades include enhanced circuit boards featuring double thickness copper, Nichicon MUSE Series capacitors, and Reference 2 wiring, delivering unparalleled audio quality.
Hand-matched transistors and Noratel transformers guarantee optimal performance, while full LIPS® implementation allows seamless integration with other Leema Acoustics products.
Each unit comes with a passport-style documentation system, affirming its Anniversary Edition status and meticulous craftsmanship.
Verified Dealers
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Authorized dealers for Leema Acoustics Hydra II Anniversary
- 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)
and 23 more verified dealers