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Luxman MQ-88uC
LUXMAN's vacuum tube amplifier legacy
Since the launch of our SQ-5A vacuum tube integrated amplifier in 1961, we have continued making vacuum tube amps without a break. We have produced many models that are highly valued as signature models and satisfied music lovers are enjoying them to this day, even several decades after their release. The CL-38uC and MQ-88uC combine LUXMAN's history of producing fine vacuum tube products and the traditional wisdom and skills gained along the way.
The essence of high-end products:selected high quality components
Due to their relatively simple circuitry, vacuum tube amplifiers are greatly affected by the quality of individual components, hence we utilize LUXMAN's own high-quality transformers and blocking capacitors. Further customization comes in the form of Nichicon made, high voltage, metalized polypropylene film coupling capacitors, which have been introduced for their supple, natural tone. Improved audio quality has been realized by shortening the internal wiring.
Reviving designs from the golden era of vacuum tube amplifiers
The CL-38uC control amplifier and the MQ-88uC power amplifier are based on the latest technology and design, but the exterior styling evokes a classic image from the heyday of vacuum tube audio products. The CL-38uC is modeled on the CL-35, released in 1970, and the MQ-88uC is modeled on the MQ-60, released in 1969. A classic front panel design should be functional, but also beautiful, achieved by careful selection of knobs and lever switches. Listeners can appreciate such traditional design features, with their nostalgic flavor, whilst enjoying these contemporary, high performance audio products.
Long life and reliable design
Each CL-38uC control amplifier and MQ-88uC power amplifier undergoes a final performance check after a 48 hour aging process following assembly. We have selected JJ Electronic (Slovakia) vacuum tubes for these models as they are renowned for their reliability, long life and the ease with which they operate at vacuum tube amplifier voltages and heat dissipation conditions.
JJ Electronic KT88 output tubes
The KT-88 output tubes used in the MQ-88uC, made by JJ Electronic, are known for their power and rich sound quality. The triode configuration employed achieves longer vacuum tube life and a highly transparent timbre that vacuum tube amps are known for. The paralleled first stage feeds a driver stage featuring performance proven Mullard circuitry. For the final stage, we have adopted a Mullard compatible push pull configuration to achieve an output power of 25 Watts per channel at 4, 8 and 16 ohm with very low distortion.
Independent speaker terminals for 4, 8 and 16 ohm speakers
The MQ-88uC has independent 4, 8 and 16 ohm speaker terminals to better match with and bring out the best abilities of any kind of speakers, allowing powerful music reproduction with very low distortion. The unit features a variable input (volume adjustable) mode in which the signal bypasses the input section, connecting a source device, such as a CD player, directly to the output section.
Output transformers and power supply
Output transformers play an important role in determining the sound quality and performance of a vacuum tube amp. LUXMAN’s classic amplifier products featured OY15 type output transformers with die-cast aluminum housings. These have been redesigned and reproduced with the original shape. The power supply section features a highly stable El type power transformer in tandem with custom designed blocking capacitors yielding steadfast sound quality and excellent drivability.
New exterior finish
The main chassis of the MQ-88uC has a dark brown finish, different to the black finish of the MQ-88u. We feel this finish better matches our products with wooden exterior cases. The hairline finished aluminum top panel and matt black aluminum die-cast power transformer housings make for a harmonious match, fine quality and beauty being important to our designs.
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Professional Reviews 84/100
Nicely Roasted
Sound Quality
85/100
Build Quality
89/100
Value for Money
78/100
With its midrange richness and disciplined tube control, the MQ-88uC brings cello, voices, and electrostatic speakers vividly to life. Audiophilepure noted superb image focus, bloom, and convincing bass authority, while also flagging a recessed upper treble and slightly compressed orchestral depth. It’s a refined, musically persuasive amplifier for listeners who prize tonal finesse over sheer scale.
What Reviewers Are Saying
Pros
Excellent midrange presence and harmonic bloom, with strong image focus on acoustic music.
Controls difficult loads well, including Quad-57 ESLs, with impressive damping and authority for a 25W tube amp.
Upper bass can sound phenomenal when paired with a suitable speaker/amp match.
&
Cons
Upper treble is described as recessed, limiting sparkle and air unless supplemented.
Orchestral soundstage depth is somewhat compressed front-to-back and lacks layering compared with the reference amp.
SOUND QUALITY PERFORMANCE 85/100
Reviewers describe a graceful, highly listenable amplifier with a strong midrange core and excellent control on speakers that suit it. The main caveats are also clear: upper treble is called recessed, frequency extremes need help, and orchestral depth is somewhat compressed front to back, so this is a rewarding but not universally expansive presentation.
Transparency Resolution
86/100
The amp is described as revealing enough to make favorite recordings sound especially alive, with excellent damping factor and bandwidth extension helping low-level detail come through cleanly. At the same time, the reviewer stops short of calling it ultra-etched or microscopic, and the treble is noted as recessed rather than especially airy.
Tonal Balance Musicality
87/100
The MQ-88uC earns praise for superb harmonic bloom, image focus, and a midrange that makes cello and the Quad ESLs sound especially satisfying. That said, the comments about recessed upper treble and problems at the frequency extremes keep it from sounding completely even-handed.
Dynamics
86/100
For a 25-watt tube amplifier, the Luxman is credited with excellent damping factor and enough authority to drive Quad-57 ESLs very well. The language suggests real control and ease rather than strain, but the limited power and the caveats at the frequency extremes keep the sense of slam and headroom from sounding limitless.
Soundstage Imaging
80/100
Image focus is singled out positively, and solo cello is said to have strong presence and bloom. However, the depth perspective is explicitly downgraded, with orchestral soundstages described as somewhat compressed front to back and less layered than a competing amp.
Assessments of Build Quality, Usability, and Overall Propositions.
Build Quality
89/100
The reviews point to a serious, well-executed tube design with strong damping factor, bandwidth extension, and enough control to do justice to difficult loads like Quad electrostatics. The supplied specifications also show a substantial chassis and a thoughtful tube complement, though the reviews themselves say little about long-term reliability or service considerations.
Value for Money
78/100
At around $5995, this is a costly amplifier, and the review does not frame it as a bargain or a standout value play. The appeal is clearly tied to its sound and its ability to drive demanding speakers, but there is not enough explicit praise to call it especially compelling for the asking price.
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- Acoustic Sounds — online and in-store — Salina, Kansas, United States (website)
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- All Elite Audio — online and in-store — Perry Hall, Maryland, United States (website)
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- Arizona Hi-Fi — in-store — Phoenix, Arizona, United States (website)
- Art & Voice — online (website)
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