LUXMAN MQ-88UC Vaccum Tube Power Amplifier

LUXMAN MQ-88uC Vacuum Tube Power Amplifier

The LUXMAN MQ-88uC is a high-end vacuum tube power amplifier built for listeners who want the classic glow, harmonic richness, and lifelike presence of tubes—without sacrificing clarity, control, or modern reliability. Styled in an elegant dark brown finish inspired by LUXMAN’s legacy designs, it blends a timeless “modern classic” look with carefully updated engineering and premium parts selection. At its core is a KT88-based output stage using a triode connection and a Mullard-compatible push-pull configuration, delivering a refined, transparent timbre and stable, low-distortion drive across real-world speaker loads. With dedicated 4Ω, 8Ω, and 16Ω speaker taps and a variable input mode that can bypass the input section for a more direct signal path, the MQ-88uC is designed to integrate beautifully into both traditional separates systems and streamlined, source-direct setups.

Built to match the LUXMAN CL-38uC for full system excellence.

The LUXMAN MQ-88uC is part of ListenUp's LUXMAN Power Amplifier Collection.

What It's Good At:

• Producing warm, accurate tube sound with improved clarity and a highly transparent timbre
• Driving a wide range of speakers confidently using dedicated 4Ω / 8Ω / 16Ω terminals
• Delivering low-distortion, musical power with KT88 triode connection and Mullard-compatible push-pull output stage
• Preserving tonal naturalness with high-quality transformers and premium coupling capacitors
• Supporting simple, source-direct listening via variable input mode that bypasses the input section
• Offering a heritage-inspired, modern-classic aesthetic with dark brown chassis and refined metalwork

LUXMAN MQ-88uC Full Specifications:

• Rated output: 25W + 25W (4Ω, 8Ω, 16Ω)
• Input sensitivity: 890mV/25W
• Input impedance: 32kΩ
• Frequency response: 20Hz to 20kHz (+0, -0.5dB)
• Frequency response: 10Hz to 100kHz (+0, -3.0dB)
• Total harmonic distortion: 0.1% (1kHz/1W)
• Total harmonic distortion: 0.5% (20Hz to 20kHz/1W)
• S/N ratio (IHF-A): 105dB
• Circuit: Driver: Mullard, Output tubes: Triode connection
• Vacuum tubes: ECC83S×2, ECC82×2, KT88×4
• Power supply: 230V~(50Hz)/115V~(60Hz)
• Power consumption: 170W, 140W (under no signal)
• External dimensions: 440(W) x 184(H) x 230(D) mm
• Depth measurement note: 17mm front panel knob of and 28mm rear panel terminals are included in the depth measurement
• Net weight: 16.1kg (main unit)
• Accessories: Power cable
• Speaker terminal (Supported Y-lug terminal dimension): Width of part a: 14.5mm or less
• Speaker terminal (Supported Y-lug terminal dimension): Width of part b: 7.5mm or more
• Speaker terminal note: Connection may be difficult depending on the shape of the Y-lug terminal.

LUXMAN MQ-88uC Q&A:

What type of amplifier is the LUXMAN MQ-88uC?

It’s a vacuum tube power amplifier designed to deliver the warm, accurate character of tube sound with improved clarity and modern engineering.

How much power does the MQ-88uC output per channel?

It delivers 25 watts per channel (25W + 25W) and supports 4Ω, 8Ω, and 16Ω loads.

What vacuum tubes does the MQ-88uC use?

The tube complement is ECC83S ×2, ECC82 ×2, and KT88 ×4.

Does it support different speaker impedances?

Yes—there are independent speaker terminals for 4Ω, 8Ω, and 16Ω to help match a wide variety of speakers.

What is the “triode connection” and why does it matter?

The MQ-88uC uses a triode connection for the output tubes, which is commonly associated with a more transparent, refined presentation and strong tonal realism.

Can I use it in a simplified, source-direct setup?

Yes—the MQ-88uC includes a variable input (volume adjustable) mode that can bypass the input section, allowing a source device to connect more directly to the output section.

What is the frequency response of the MQ-88uC?

It is rated at 20Hz–20kHz (+0, -0.5dB) and 10Hz–100kHz (+0, -3.0dB), supporting both accurate bandwidth and extended range.

Are there any compatibility notes for speaker lugs?

Yes—Y-lug terminals should be within the stated width dimensions, and connection may be difficult depending on the lug’s shape.

LUXMAN MQ-88uC Downloads:

LUXMAN MQ-88uC Catalog