• JBL 4635

    Overview – The JBL 4635 is a professional cinema subwoofer system engineered for high-output low-frequency reinforcement, utilizing dual 15-inch drivers in a large vented enclosure for powerful theatre-grade bass performance.

    Cinema Heritage – Designed for professional cinema installations, the JBL 4635 delivers deep, room-filling bass with exceptional dynamic capability, making it a legendary choice for large listening spaces and vintage high-efficiency systems.

    High-Output Performance – The JBL 4635 is capable of substantial acoustic output and extended low-frequency reproduction, providing impactful bass response that complements high-efficiency horn or large-format loudspeaker systems.

    Specifications – Dual 15-inch low-frequency drivers (typically JBL 2225H or 2226H depending on configuration), bass reflex enclosure, 4-ohm nominal impedance, frequency response approximately 30Hz–500Hz, high power handling exceeding 600W continuous.

    Dimensions – Approximately 1219 mm (H) × 762 mm (W) × 610 mm (D), reflecting its large cinema-grade enclosure designed for high acoustic efficiency and powerful low-frequency projection.

    Weight – Approximately 85–95 kg depending on driver configuration, constructed with heavy-duty cabinetry and professional drivers intended for demanding theatre and large venue applications.

    JBL 4635

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  • Sumiko Rainier MM Cartridge

    Product Overview – The Sumiko Rainier MM Cartridge (2018) is an entry-level moving-magnet design focused on musical balance, forgiving playback, and reliable performance, making it ideal for both new vinyl listeners and budget-conscious analogue systems.

    Stylus & Generator Design – Fitted with a bonded elliptical stylus and Sumiko’s carefully tuned generator, the Sumiko Rainier MM Cartridge delivers stable tracking, reduced surface noise, and consistent groove contact across a wide range of record conditions.

    Sonic Character – Voiced for warmth and smoothness, this cartridge emphasizes an easygoing tonal balance with rounded bass, relaxed treble, and cohesive midrange presentation suitable for long listening sessions.

    Specifications – Moving-magnet output approximately 5.0 mV, recommended load 47 kΩ, channel separation around 22 dB, frequency response roughly 15 Hz–25 kHz, optimized for lightweight to medium-mass tonearms.

    Dimensions – Standard half-inch mount cartridge body with compact Oyster-series proportions, ensuring straightforward alignment and compatibility with most headshells and tonearms used on entry-level and midrange turntables.

    Weight – Approximately 6.5 g, allowing easy balancing on most tonearms while maintaining stable tracking and consistent stylus pressure during playback.

  • Sumiko Moonstone MM Cartridge

    Product Overview – The Sumiko Moonstone MM Cartridge (2018) is a high-performance moving-magnet design engineered for musical warmth, refined detail, and easy system matching with standard 47 kΩ phono inputs.

    Stylus & Generator Design – Utilizing a nude elliptical stylus and carefully tuned generator, the Sumiko Moonstone MM Cartridge delivers excellent groove contact, reduced distortion, and smooth tracking across demanding inner-groove passages.

    Sonic Character – Known for its natural midrange, controlled bass weight, and non-fatiguing treble, this cartridge emphasizes musical flow and tonal coherence over exaggerated detail or analytical presentation.

    Specifications – Moving-magnet output approximately 3.0 mV, recommended load 47 kΩ, channel separation around 30 dB, frequency response roughly 12 Hz–30 kHz, optimized for medium-mass tonearms.

    Dimensions – Standard half-inch mount cartridge body with compact proportions typical of Sumiko Oyster-series designs, allowing straightforward alignment and compatibility with a wide range of headshells and tonearms.

    Weight – Approximately 6.5 g, providing stable tracking performance while maintaining compatibility with most counterweight ranges and ensuring consistent stylus contact across varying record conditions.

  • Sumiko Blue Point No. 3 Low MC Cartridge

    Product Overview – The Sumiko Blue Point No. 3 Low MC Cartridge is a premium low-output moving-coil phono cartridge designed for refined analogue playback, offering enhanced detail, tonal richness, and excellent tracking for serious vinyl enthusiasts.

    Stylus & Generator Design – Featuring an advanced line-contact stylus and precision generator assembly, the Blue Point No. 3 Low MC Cartridge delivers superior groove contact, low distortion, and improved retrieval of microdetail from complex vinyl passages.

    Analogue Character – This cartridge is known for its balanced tonal signature, controlled bass extension, articulate midrange, and smooth treble, making it well suited to high-quality tonearms and robust phono stages.

    Specifications – Low MC output around ~0.3–0.5 mV, recommended load impedance typically between 100–200 ohms, compliance optimised for medium-mass tonearms, and wide frequency response for accurate music reproduction.

    Dimensions – Compact body measuring approximately typical MC cartridge footprint (~12 mm × 18 mm × 30 mm), engineered for easy alignment and secure mounting on standard ½-inch tonearm headshells without compromise.

    Weight – Weighs roughly 7 g, offering a low-mass yet stable tracking platform that supports accurate groove following and consistent channel balance across a range of record pressings.

  • 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.

  • Sumiko Pearl MM Cartridge

    Product Overview – The Sumiko Pearl MM Cartridge is a classic moving-magnet phono cartridge known for smooth, musical analogue playback, delivering balanced highs, defined mids, and rhythmic clarity that elevates everyday vinyl listening. 

    Design & Engineering – Featuring a precision 0.3 × 0.7 mil elliptical stylus and high-purity copper coils, the Pearl’s generator and compliance are optimized for wide frequency response, detail retrieval, and stereo imaging. 

    Analogue Character – With its evenly balanced tonal presentation and broad 12 Hz‒30 kHz response, the cartridge offers engaging bass, articulate midrange, and a forgiving high end for long listening sessions. 

    Specifications – Moving Magnet design with ~4.0 mV output at 1 kHz, load impedance ~47 kΩ, compliance ~12×10⁻⁶ cm/dyn, and recommended tracking force ~2.0 g — ideal for most MM phono stages. 

    Dimensions – Compact body measuring approx. 11.6 × 20.26 × 27.24 mm with bagged mounting and removable stylus, enabling easy setup on standard tonearms. 

    Weight – Weighs about 6.0 g, balancing low mass for stability with sufficient tracking capability for sonic nuance and compatible tracking on a broad range of turntables. 

  • Sumiko Oyster MM Cartridge

    Product Overview – Sumiko Oyster MM Cartridge, a classic moving-magnet phono cartridge, offers a smooth, musical analogue presentation ideal for beginners or vinyl upgraders seeking superior performance over stock cartridges. 

    Design & Performance – The Sumiko Oyster MM Cartridge features a bonded spherical stylus and rugged alloy cantilever, delivering engaging midrange, gentle high-frequency extension, and improved groove detail over entry-level designs. 

    Analogue Character – The cartridge’s balanced tonal signature produces natural warmth and layered sound, making the Oyster especially enjoyable for everyday listening across diverse music genres. 

    Specifications – Moving Magnet design with ~5.0 mV output, 30 Hz–20 kHz frequency response, recommended tracking force ~2.3 g, compliance ~12×10⁻⁶ cm/dyn, and 47 kΩ load impedance for broad MM compatibility. 

    Dimensions – Compact and lightweight at approximately 18.2 mm × 18 mm × 30.5 mm, the Sumiko Oyster MM Cartridge suits most tonearms with standard half-inch mount and maintains rigid structural integrity. 

    Weight – Weighing about 5.3 g, the cartridge’s low mass aids stable tracking and broad tonearm compatibility while remaining easy to align and adjust on a wide range of turntables. 

  • 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.

  • Harmonix XDC-2 Power Cable (1.5m)

    •⁠  Overview – Harmonix XDC-2 Power Cable, released in the early 2000s, is a Japanese audiophile-grade power cable designed to prioritise tonal naturalness, musical flow, and noise reduction over sheer current delivery.

    •⁠  Design Philosophy – Developed using Harmonix’s tuning-by-ear approach, the cable focuses on resonance control, material synergy, and vibration damping to achieve a relaxed, organic presentation across analog and digital components.

    •⁠  Sonic Performance – Harmonix XDC-2 Power Cable is renowned for smooth treble, rich midrange tonality, and coherent timing, making it especially attractive for tube systems and musically voiced solid-state equipment.

    •⁠  Specifications – High-purity copper conductors, moderate gauge design, carefully selected dielectric materials, effective mechanical damping, and high-quality connectors optimized for stable contact and consistent AC power transfer.

    •⁠  Dimensions – Commonly supplied in approximately 1.5 m length, featuring a flexible outer jacket that allows easy routing while maintaining consistent electrical and mechanical characteristics.

    •⁠  Weight – Approximately 0.9 kg per cable, reflecting dense conductor materials and internal damping without excessive stiffness or stress on component IEC sockets.

  • 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.

  • Harmonix SYN 100 Spikes and RF909x Spike Base

    •⁠  Product Overview – Harmonix SYN 100 Spikes and RF909x Spike Base, released in the mid-2000s, are vibration control accessories designed to optimize mechanical grounding, resonance dissipation, and tonal balance in high-end audio systems.

    •⁠  Tuning Philosophy – Developed using Harmonix’s tuning-based approach, the combination controls energy flow rather than fully isolating components, preserving musicality, timing accuracy, and natural harmonic structure.

    •⁠  System Enhancement – Harmonix SYN 100 Spikes and RF909x Spike Base improve focus, bass articulation, and soundstage stability when used under loudspeakers, racks, or electronics, especially in revealing high-resolution systems.

    •⁠  Specifications – Precision-machined metal spikes with matched base interfaces, resonance-tuned materials, point-contact energy transfer, and compatibility with most speaker and rack threaded inserts for universal audiophile applications.

    •⁠  Dimensions – Individual spike height is approximately 25 mm, with RF909x bases measuring roughly 50 mm in diameter, allowing discreet placement while maintaining effective mechanical coupling.

    •⁠  Weight – Each spike and base set weighs approximately 150–200 g, providing sufficient mass for stability while supporting controlled resonance behavior and consistent component grounding.

  • 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.

  • JBL Synthesis Project Array 1400

    High-Performance Overview – The JBL Synthesis Project Array 1400, launched around 2007, is a flagship floorstanding loudspeaker using a Bi-Radial horn and powerful low-frequency system to deliver dynamic, room-filling cinema-grade sound.

    Horn-Loaded Precision – The JBL Synthesis Project Array 1400 features a titanium compression driver and advanced horn geometry, providing exceptional clarity, wide dispersion, and precise imaging ideal for both music and home-theater environments.

    Deep, Controlled Bass – A massive 14-inch Neodymium woofer delivers authoritative low frequencies with excellent transient response, enabling the Project Array 1400 to handle demanding low-end material while maintaining accuracy and control.

    Ultra-High Output Capability – With high sensitivity and robust driver construction, the JBL Synthesis Project Array 1400 achieves reference-level dynamics, low distortion, and impactful realism even at elevated listening levels.

    Dimensions – Approx. 1,115 mm (H) × 508 mm (W) × 406 mm (D). Large cabinet volume supports deep bass extension and wide sound dispersion across medium to large rooms.

    Weight – Approx. 64 kg per speaker, providing exceptional mechanical stability and reducing cabinet resonance for cleaner, more accurate acoustic performance.

  • 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.

  • JBL HP 520 Speakers

    High-Performance Design – The JBL HP 520 Speakers deliver dynamic, room-filling sound with impressive bass depth, refined midrange clarity, and excellent dispersion, making them ideal for audiophiles seeking a powerful yet balanced presentation.

    Acoustic Precision – Featuring advanced JBL driver engineering and a well-tuned cabinet, these speakers offer articulate imaging, smooth frequency response, and reliable performance across a wide range of musical genres and listening environments.

    Versatile System Matching – The JBL HP 520 Speakers pair effectively with solid-state or tube amplification, offering stable impedance behavior and strong efficiency, ensuring consistent performance across diverse hi-fi system setups.

    Robust Build Quality – Constructed with solid cabinetry and high-quality drivers, the JBL HP 520 Speakers provide durability, low resonance, and long-term performance ideal for serious home audio enthusiasts.

    Dimensions – Each speaker measures approximately 680 mm (H) × 380 mm (W) × 300 mm (D), offering a substantial footprint while remaining manageable for medium to large listening rooms.

    Weight – Each unit weighs around 18–20 kg, providing cabinet stability and reducing unwanted vibration for improved sonic accuracy.

Harmonix is a Japanese audio brand specialising in system tuning accessories focused on resonance control, mechanical grounding, and vibrational optimisation. The brand approaches audio reproduction as a holistic system, recognising that mechanical behaviour and energy flow play a critical role in overall sound quality.

Harmonix products include cables, tuning devices, and isolation accessories designed to fine-tune tonal balance and system coherence. Because these products are based on physical principles rather than rapidly changing technology, pre-owned Harmonix items remain highly relevant when properly maintained. Many enthusiasts use Harmonix products incrementally to refine established systems rather than replacing core components.

Across Singapore, Malaysia, and Southeast Asia, Harmonix appeals to experienced audiophiles seeking subtle but meaningful system optimisation. On SoundTribeAsia, Harmonix products — new and pre-owned — are listed by verified dealers, offering transparent sourcing and trusted access through a curated regional marketplace.

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