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Metronome AQWO 2 and Elektra Power Supply
• Product Overview – Metronome AQWO 2 and Elektra Power Supply, released in 2021, form a reference-grade CD/SACD player and DAC system, combining French precision engineering with modular power supply architecture for ultimate digital playback.
• Digital Architecture – The AQWO 2 supports CD, SACD, and high-resolution PCM/DSD via USB and AES/EBU, using dual AKM DACs and discrete analog stages for natural tonal density and low digital glare.
• Sonic Performance – Metronome AQWO 2 and Elektra Power Supply is renowned for its organic, analog-like presentation, the system delivers expansive soundstage depth, refined microdynamics, and exceptional low-level resolution, excelling with both discs and high-resolution digital sources.
• Specifications – Supports up to PCM 32-bit/384 kHz and DSD256, features balanced XLR and RCA outputs, multiple digital inputs, and benefits from the Elektra outboard supply for reduced noise and improved dynamic authority.
• Dimensions – AQWO 2 measures approximately 450 mm (W) × 110 mm (H) × 430 mm (D), while the Elektra power supply matches the footprint for seamless rack integration and visual symmetry.
• Weight – AQWO 2 weighs about 16 kg, with the Elektra power supply adding approximately 11 kg, reflecting heavy-duty transformers, mechanical damping, and high-quality power regulation circuitry.
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Luxman M-900u Ultimate
• Overview – Luxman M-900u Ultimate, released in 2013, is a solid-state Class AB stereo power amplifier engineered for extreme current delivery, tonal neutrality, and absolute control over demanding loudspeaker loads.
• Amplifier Architecture – Designed with Luxman’s ODNF 4.0 feedback circuitry, it delivers exceptional speed, ultra-low distortion, and natural musical flow while preserving dynamic contrast and micro-detail across complex recordings.
• System Authority – Luxman M-900u Ultimate excels in large-scale systems, providing effortless drive, deep bass grip, and expansive soundstaging, making it ideal for reference loudspeakers with challenging impedance characteristics.
• Specifications – Rated at 300 watts per channel into 8 ohms and 600 watts into 4 ohms, featuring high damping factor, wide bandwidth response, and fully discrete circuitry for uncompromised signal integrity.
• Dimensions – Approx. 467 mm (W) × 226 mm (H) × 485 mm (D), housed in a substantial chassis with thick aluminium panels and optimized internal layout for thermal stability and vibration control.
• Weight – Approximately 48 kg, reflecting massive transformers, large capacitor banks, and Luxman’s uncompromising mechanical construction required for sustained high-power performance.
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Luxman L-509X
• Flagship Integrated Design – The Luxman L-509X is a Class AB solid-state integrated amplifier with premium preamp, DAC-ready connectivity options, and precision volume control, delivering exceptional transparency and musical refinement.
• Advanced Circuit Topology – Featuring Luxman’s ODNF 4.0 technology and robust current delivery, the Luxman L-509X ensures low distortion, improved microdynamics, and authoritative grip over demanding loudspeakers.
• Premium Build Quality – Luxman L-509X showcases meticulous Japanese craftsmanship, including a reinforced chassis, precision meters, and optimized internal layout for noise reduction and long-term performance stability.
• Versatile System Integration – With high-grade line inputs, phono stage, and flexible system configuration, the amplifier accommodates both analog sources and modern setups while maintaining the signature Luxman sonic warmth.
• Dimensions – Luxman L-509X Measures approximately 440 mm (W) × 193 mm (H) × 463 mm (D), fitting comfortably into high-end audio racks while allowing proper ventilation.
• Weight – Weighs about 29.3 kg, reflecting its substantial power supply, robust transformers, and vibration-controlled chassis structure designed for maximum sonic purity.
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Krell FPB MC250 Monoblock
• Overview – Krell FPB MC250 Monoblock, released in 2001, is a solid-state Class A/AB monaural power amplifier designed to deliver immense current capability, extreme control, and reference-level dynamics for demanding loudspeakers.
• Amplifier Topology – Built on Krell’s Full Power Balanced architecture, it operates in high-bias Class A before transitioning to Class AB, ensuring low distortion, fast transient response, and consistent performance across complex loads.
• System Authority – The Krell FPB MC250 Monoblock excels at driving low-impedance and difficult speakers, producing authoritative bass grip, wide dynamic headroom, and effortless scale without compression at realistic listening levels.
• Specifications – Rated at 250 watts into 8 ohms, doubling to 500 watts into 4 ohms and higher into lower impedances, featuring extremely high damping factor, wide bandwidth, and fully balanced discrete circuitry.
• Dimensions – Approx. 438 mm (W) × 305 mm (H) × 533 mm (D), housed in a massive aluminium chassis with extensive heatsinking and internal isolation for thermal stability and vibration control.
• Weight – Approximately 68 kg per monoblock, reflecting enormous transformers, capacitor banks, and Krell’s uncompromising mechanical construction required for sustained high-current operation.
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Krell KSA-300S Stereo Amplifier
• Krell KSA-300S Stereo Amplifier – This powerhouse Class A/AB sliding-bias design delivers massive current, exceptional control, and the unmistakable Krell authority, driving even the most demanding speakers with effortless precision.
• Sustained Power Delivery – Known for its enormous current reserves and stability into extremely low impedances, the KSA-300S provides grip, dynamics, and low-frequency impact unmatched by typical solid-state amplifiers of its era.
• Sophisticated Krell Topology – Featuring Krell’s proprietary Sustained Plateau Biasing, the amplifier achieves Class A performance at practical efficiency levels, offering transparency, speed, and refined musical detail.
• System Integration – Balanced and single-ended inputs, robust binding posts, and a highly inert chassis ensure quiet operation, excellent grounding, and seamless matching with high-end preamps and loudspeakers.
• Dimensions – Krell KSA-300S Stereo Amplifier Measures approximately 483 mm (W) × 241 mm (H) × 686 mm (D), requiring a sturdy rack with ample ventilation due to its substantial heat dissipation needs.
• Weight – Weighs roughly 68–70 kg, attributed to its heavy transformer architecture and oversized power supply, ensuring rock-solid stability and peak performance under demanding loads.
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Luxman MQ-88uC
• Luxman MQ-88uC – The Luxman MQ-88uC is a Class AB vacuum-tube power amplifier (released 2019), using KT88 output tubes to deliver refined musicality, low distortion, and Luxman’s signature warm yet articulate presentation.
• Premium Tube Circuitry – The Luxman MQ-88uC employs a Mullard-inspired circuit with meticulous point-to-point wiring, achieving exceptional linearity, wide bandwidth, and effortless drive with superb harmonic accuracy and midrange richness.
• Precision Engineering – With stabilized power regulation, highly shielded transformers, and Luxman’s proprietary LECUA attenuation architecture, the MQ-88uC ensures ultra-quiet operation and consistent performance even with demanding loudspeakers.
• Build Quality – The amplifier’s classic Japanese craftsmanship includes a rigid chassis, custom EI-core transformers, and precision-selected components that collectively enhance stability, tonal refinement, and operational longevity.
• Dimensions – Approx. 440 mm (W) × 184 mm (H) × 230 mm (D), compact for a tube power amplifier while preserving optimal internal airflow and layout.
• Weight – Roughly 16–18 kg, reflecting its robust transformer assembly, steel chassis, and premium tube complement.
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Krell KSA200S Amplifier
• Product Overview – The Krell KSA200S Amplifier, released in 1995, is a solid-state pure Class A stereo power amplifier delivering legendary current capability, extreme control, and the authoritative sonic signature Krell is known for.
• Amplification Topology – Designed with massive power supplies and fully balanced circuitry, the KSA200S operates in continuous Class A, providing unwavering drive, low distortion, and exceptional loudspeaker control even under demanding loads.
• Sonic Performance – Krell KSA200S Amplifier delivers explosive dynamics, deep controlled bass, and a neutral tonal balance, excelling with difficult speakers and large-scale orchestral or rock recordings at realistic listening levels.
• Specifications – Rated at 200 watts per channel into 8 ohms, doubling into 4 ohms, with stable operation into 2 ohms, ultra-high current output, and extremely low output impedance for maximum damping factor.
• Dimensions – Chassis measures approximately 438 mm (W) × 197 mm (H) × 546 mm (D), reflecting the substantial heatsinking and transformer size required for sustained Class A operation.
• Weight – Weighs approximately 72 kg, with the extreme mass attributed to oversized transformers, extensive heatsinks, and heavy internal construction designed for thermal stability and long-term reliability.
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Luxman L550
• Product Overview – The Luxman L550, released in 1982, is a pure Class A solid-state integrated amplifier celebrated for its rich tonal warmth, precise control, and exceptionally musical presentation across diverse loudspeaker systems.
• Signature Luxman Sound – Known for its fluid midrange and refined harmonic structure, the Luxman L550 delivers highly engaging musicality that appeals to audiophiles seeking natural detail and effortless coherence.
• Classic Engineering – The Luxman L550 showcases meticulous Japanese craftsmanship, employing hand-selected components and a dual-mono layout to improve channel separation, enhance resolution, and reinforce tonal stability during dynamic passages.
• System Synergy – The Luxman L550 integrates seamlessly into both modern and vintage systems, offering consistent drive, stable performance, and excellent pairing flexibility with sensitive or moderately demanding speakers.
• Dimensions – Approx. 460 mm (W) × 170 mm (H) × 455 mm (D), designed to fit standard audio racks while maintaining adequate ventilation for Class A heat dissipation.
• Weight – Around 25 kg, featuring a robust transformer and solid chassis construction that enhances mechanical stability and minimizes resonance intrusion.
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Krell KSL Pre Amp, FPB 200 Power Amp & KAV 300 CD Player
• Krell KSL Pre Amp, FPB 200 Power Amp & KAV 300 CD Player Overview – This early-2000s Krell trio delivers reference solid-state Class A/AB performance, combining authoritative power, ultra-low distortion, and exceptional transparency for serious high-end stereo systems.
• High-Resolution Preamplifier Clarity – The KSL preamp provides wide bandwidth, fully balanced circuitry, and a low-noise signal path, offering precise imaging, excellent channel separation, and a clean, neutral tonal balance suited for revealing systems.
• FPB 200 Class A/AB Power Authority – The Krell KSL Pre Amp, FPB 200 Power Amp & KAV 300 CD Player system is anchored by the FPB 200, delivering 200W per channel with Krell’s Sustained Plateau Bias for massive current and effortless control.
• Premium Digital Playback – The KAV 300 CD Player employs Krell’s advanced jitter-reduction, high-precision DAC architecture, and robust transport mechanism to produce detailed, dynamic, and musically engaging CD reproduction.
• Dimensions – KSL: approx. 432 × 76 × 381 mm. FPB 200: approx. 483 × 254 × 610 mm. KAV 300 CD: approx. 483 × 89 × 410 mm, all designed for rack-friendly installation.
• Weight – FPB 200 approx. 45–50 kg due to its massive transformers; KSL approx. 8 kg; KAV 300 CD approx. 10 kg, reflecting Krell’s heavy-duty, resonance-free construction.
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Krell KAV-300I Integrated Amplifier
• Product Overview – The Krell KAV-300I Integrated Amplifier was released in 1999 as a solid-state Class A/AB design, combining preamplifier and high-current power amplification for authoritative control and classic Krell drive.
• Amplification Performance – Delivering exceptional grip and dynamics, the amplifier provides effortless current delivery, wide bandwidth, and low noise, making it ideal for demanding loudspeakers and high-resolution analogue or digital sources.
• Build & Sonic Character – The Krell KAV-300I Integrated Amplifier features Krell’s robust power supply architecture, discrete circuitry, and minimalist signal path, resulting in tight bass, transparent midrange, and extended, controlled high frequencies.
• Specifications – Rated at approximately 150 W per channel into 8 ohms and 300 W into 4 ohms, with high-current output stages, wide frequency response, and stable operation into low-impedance speaker loads.
• Dimensions – Measures approximately 432 mm (W) × 178 mm (H) × 457 mm (D), requiring a sturdy, well-ventilated rack to accommodate its substantial chassis depth and heat dissipation.
• Weight – Weighs roughly 31 kg, reflecting its oversized transformer, large capacitor bank, and heavy aluminum chassis designed for mechanical stability and long-term electrical performance.
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Krell Industries is an American high-end audio brand synonymous with high-current amplification and uncompromising power delivery. Founded on the belief that amplifiers should maintain control under all conditions, Krell established itself as a reference name in solid-state amplification.
Krell amplifiers are engineered with substantial power supplies and thermal stability, contributing to exceptional longevity. This makes pre-owned Krell equipment particularly appealing to audiophiles seeking authoritative performance that remains competitive years after original release.
Across Singapore, Malaysia, and Southeast Asia, Krell is associated with high-performance systems designed for dynamic control and scale. On SoundTribeAsia, Krell equipment — new and pre-owned — is listed by verified dealers, offering transparent pricing and trusted sourcing through a regional marketplace.









