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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 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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Norstone Vintage Speaker Stands
• Overview – Norstone Vintage Speaker Stands, released in 2020, are retro-inspired loudspeaker supports combining classic aesthetics with modern rigidity, designed to improve speaker stability, resonance control, and overall sonic clarity.
• Design & Damping – Built using steel columns and solid wooden top plates, the Norstone Vintage Speaker Stands reduce micro-vibrations, enhance midrange focus, and deliver improved bass articulation in compact bookshelf speaker systems.
• System Matching – The Norstone Vintage Speaker Stands are ideal for standmount loudspeakers from brands like JBL, Klipsch, Wharfedale, and other classic-inspired designs, complementing both vintage and modern hi-fi interiors.
• Specifications – Features rigid steel frame construction, high load-bearing capacity suitable for heavy bookshelf speakers, anti-slip top plate surface, and provision for optional isolation feet or spikes for floor coupling.
• Dimensions – Overall dimensions (W x H x D): 380 x 260 x 280 mm, Rising height: 190 mm, max speaker weight is 60kg
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Siltech Ruby Mountain 2 Power Cable (1.5m)
• Overview – Siltech Ruby Mountain 2 Power Cable, released in 2002, is a high-end power cord engineered to reduce noise, improve current delivery, and enhance musical clarity in reference audio systems.
• Conductor Technology – Utilises Siltech’s proprietary G7 silver-gold alloy conductors with advanced dielectric insulation, delivering low resistance, excellent conductivity, and superior preservation of micro-dynamics and tonal purity.
• Sonic Performance – Siltech Ruby Mountain 2 Power Cable delivers a quieter noise floor, improved bass authority, enhanced midrange texture, and refined treble extension, benefiting amplifiers, source components, and digital front ends.
• Specifications – Features multi-strand G7 silver-gold conductors, heavy shielding for EMI and RFI rejection, high-current capability up to 16A, and premium connectors ensuring secure contact and consistent power transfer.
• Dimensions – Typically supplied in 2.0 m length, with a thick, flexible jacket designed for durability and ease of routing in high-end audio racks and power distribution setups.
• Weight – Approximately 1.0 kg for a 2.0 m cable, reflecting dense conductor geometry, advanced shielding layers, and robust connector construction.
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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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Lumin U1 Network Transport
• Product Overview – Lumin U1 Network Transport, released in 2015, is a reference-grade network transport engineered for ultra-low jitter digital playback, delivering pristine data output to high-end external DACs and digital processors.
• Digital Architecture – Built around Lumin’s proprietary streaming platform, it supports native DSD, high-resolution PCM, and precision clocking via dual femto oscillators for exceptional timing accuracy and signal integrity.
• Sound Quality – Lumin U1 Network Transport excels in transparency, spatial precision, and micro-dynamic detail, revealing subtle textures and ambient cues while maintaining tonal purity and rhythmic coherence across complex musical passages.
• Specifications – Supports PCM up to 384 kHz, DSD128 native, AES/EBU, BNC, RCA, and optical outputs, with isolated Ethernet input and separate digital processing and output stages.
• Dimensions – The chassis measures approximately 350 mm (W) × 60 mm (H) × 350 mm (D), featuring a solid CNC-machined aluminum enclosure for effective vibration control.
• Weight – Lumin U1 weighs approximately 7 kg, reflecting its robust construction, internal shielding, and high-quality power regulation designed for stable, noise-free digital signal transmission.
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Norstone Epur 4 HiFi Rack
• Product Overview – The Norstone Epur 4 HiFi Rack, released in the late 2010s, is a four-tier equipment rack combining steel uprights and tempered glass shelves to provide stable, vibration-controlled support for hi-fi components.
• Rigid & Clean Construction – Featuring square steel columns and thick tempered glass platforms, the Epur 4 minimizes resonance and mechanical feedback, helping electronics perform with improved clarity, focus, and consistent tonal balance.
• Multi-Component Flexibility – Designed for full systems, the rack offers generous tier spacing for amplifiers, sources, and power supplies, while allowing effective airflow and tidy cable management in compact listening spaces.
• Modern Audiophile Aesthetics – The Norstone Epur 4 HiFi Rack blends minimalist design with functional engineering, making it suitable for contemporary interiors without compromising stability or long-term equipment support.
• Dimensions – Approx. 600 mm (W) × 450 mm (D) × 800 mm (H) overall, with shelf spacing optimized for standard-width hi-fi components and multi-box systems.
• Weight – Around 18 kg assembled, providing sufficient mass for vibration control while remaining practical to position and adjust within home audio environments.
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Norstone Bergen 2 Hifi Rack
• Product Overview – The Norstone Bergen 2 Hifi Rack, released in the late 2010s, is a compact modular equipment rack combining steel uprights and tempered glass shelves to support stable, vibration-controlled hi-fi system placement.
• Rigid Structural Design – Built with square steel columns and thick smoked glass shelves, the Bergen 2 Hifi Rack minimizes resonance, improves component stability, and enhances sonic clarity across both analogue and digital audio setups.
• Compact System Integration – Designed for space-conscious environments, the rack offers practical tier spacing, clean cable routing, and sufficient ventilation, making it ideal for integrated amplifiers, streamers, and compact power amplifiers.
• Everyday Audiophile Practicality – The Norstone Bergen 2 Hifi Rack supports moderate component weights while maintaining elegant aesthetics, providing a reliable and visually clean platform for modern living spaces.
• Dimensions – Approx. 600 mm (W) × 450 mm (D) × 400 mm (H) per shelf section, offering compatibility with standard-width hi-fi components and balanced vertical spacing.
• Weight – Roughly 15 kg assembled, delivering adequate mass for vibration control while remaining easy to position or relocate within home audio systems.
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Norstone Stabbl Hifi Rack
• Product Overview – The Norstone Stabbl Hifi Rack, released in the late 2010s, is a modular steel-and-wood equipment rack designed to provide high load capacity, excellent vibration control, and clean aesthetics for high-end audio systems.
• Rigid Modular Construction – Built with solid steel legs and thick bamboo shelves, the Stabbl Hifi Rack minimizes resonance and offers exceptional structural stability, allowing sensitive electronics to perform with improved clarity and dynamic consistency.
• Audiophile-Oriented Design – Each tier is height-adjustable, enabling flexible component placement, proper ventilation, and optimized cable routing while maintaining a mechanically grounded platform for amplifiers, source components, and power supplies.
• System Compatibility – The Norstone Stabbl Hifi Rack supports heavy power amplifiers and multi-box systems, providing reliable isolation and consistent performance benefits across both analogue and digital audio setups.
• Dimensions – Typical shelf dimensions are approximately 590 mm (W) × 490 mm (D), with adjustable height spacing per tier to accommodate large-format hi-fi components and power conditioners.
• Weight – Around 18–20 kg per module depending on configuration, delivering substantial mass for effective vibration damping and long-term mechanical stability.
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Norstone Stylum 3 Speaker Stand
• Product Overview – The Norstone Stylum 3 Speaker Stand, introduced in the mid-2010s, is a rigid steel loudspeaker stand engineered to improve stability, imaging focus, and bass control for stand-mount speakers.
• Rigid Steel Construction – Built with square-section steel columns and a heavy base plate, the Norstone Stylum 3 Speaker Stand reduces resonance and vibration, allowing speakers to perform with improved clarity, timing, and spatial precision.
• Optimised Speaker Support – The top plate accommodates a wide range of bookshelf speakers, while the mass-loadable central column enables fine tuning of tonal balance and low-frequency authority.
• Practical Audiophile Design – Adjustable floor spikes provide secure coupling on carpeted or solid floors, ensuring consistent speaker positioning and reliable performance in dedicated listening rooms or mixed-use spaces.
• Dimensions – 730 mm height with a top plate around 165 × 220 mm and a wide base for enhanced stability and correct tweeter ear-level alignment.
• Weight – Roughly 7 kg per stand, offering sufficient mass to control resonance while remaining manageable for installation and repositioning.
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Lumin D2 Music Server
• Lumin D2 Music Server Overview – The Lumin D2 Music Server delivers high-performance streaming with a premium DAC architecture, offering natural tonality, excellent resolution, and seamless playback across major lossless and high-resolution formats.
• Refined Digital Performance – The Lumin D2 Music Server features dual-mono Wolfson WM8741 DACs, delivering smooth treble, rich midrange texture, and precise low-level detail ideal for resolving modern network-based systems.
• High-Quality Streaming Integration – Lumin’s robust platform supports TIDAL, Qobuz, Spotify Connect, Roon Ready, and native DSD/PCM playback, ensuring reliable operation and exceptional sound quality across diverse digital libraries.
• Premium Build & Connectivity – The Lumin D2 Music Server includes fully balanced outputs, low-noise processing, Gigabit Ethernet, and optimized circuit paths to maintain signal purity and system-wide musical coherence.
• Dimensions – Approx. 300 mm (W) × 244 mm (D) × 60 mm (H), compact enough for easy placement while maintaining solid structural rigidity to reduce vibration.
• Weight – Around 2.5 kg, offering a sturdy yet compact chassis that enhances electrical stability without unnecessary mass.
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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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Lumin S1 Network Music Streamer
• Lumin S1 Network Music Streamer – Designed for reference-level digital playback, the S1 offers native DSD, dual-mono DAC topology, and exceptional transparency, ideal for resolving high-end systems demanding maximum digital purity.
• Dual-Mono DAC Architecture – Featuring four ESS Sabre ES9018 chips per channel, the Lumin S1 achieves superior channel separation, low noise, and a highly detailed yet natural sonic presentation across all formats.
• High-Resolution Format Support – The S1 supports native DSD128, DXD, and high-rate PCM, ensuring full compatibility with modern digital libraries while maintaining remarkable accuracy, spaciousness, and tonal refinement.
• Precision Build and Connectivity – With robust power regulation, premium components, and wide-format network support, the S1 provides consistent performance, fast response, and seamless integration with advanced NAS and streaming setups.
• Dimensions – Approx. 350 mm (W) × 345 mm (D) × 60 mm (H). Its low-profile chassis fits elegantly into reference digital audio racks and modern streaming systems.
• Weight – Approximately 8–10 kg, offering a solid, vibration-resistant enclosure that enhances DAC stability and overall playback precision.
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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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Herron Audio VTOH-1 Tube Phono
• Reference Phono Stage Overview – The Herron Audio VTOH-1 Tube Phono delivers exceptionally low noise, wide dynamic range and natural tonal richness using Keith Herron’s acclaimed tube-hybrid topology for highly accurate vinyl reproduction.
• Tube Gain Architecture – Its carefully voiced tube stages provide natural harmonic structure, excellent transient behaviour and superb midrange liquidity, while maintaining noise levels competitive with solid-state designs, with one mention of Herron Audio VTOH-1 Tube Phono.
• Precision RIAA Implementation – The phono circuit uses tightly matched components and a highly accurate RIAA network, achieving excellent frequency linearity, phase stability and transparency across demanding analogue recordings, plus one additional mention of Herron Audio VTOH-1 Tube Phono.
• Cartridge Compatibility & Flexibility – Designed to work seamlessly with MM and MC cartridges, the unit offers adjustable loading and stable gain, ensuring optimal synergy with a wide range of tonearms and cartridges.
• Product Dimensions – The chassis measures approximately 430 mm (W) × 90 mm (H) × 300 mm (D), fitting easily into standard-component racks with adequate ventilation for tube operation.
• Product Weight – Weighing roughly 6–7 kg, the rigid chassis construction and internal damping enhance mechanical stability and contribute to its low-noise, high-resolution analogue performance.
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Lumin U1 Mini and Plixir Power Supply
Lumin U1 Mini
• Function: Digital Music Transport (No DAC)
• Supported Formats: PCM up to 384kHz, DSD up to DSD256
• Outputs: AES/EBU, USB, BNC, RCA, Optical
• Network: Gigabit Ethernet
• App Support: Lumin App, Roon Ready, Tidal, Qobuz, Spotify Connect, AirPlay
• Dimensions: 300 × 244 × 60 mm
• Weight: 2.5 kg
Plixir Power Supply (Elite BDC or Equivalent)
• Type: Balanced DC Linear Power Supply • Output: 12V DC (specially matched for Lumin U1 Mini)
• Effect: Lower noise floor, improved dynamics and transparency
• Made in Singapore
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NorStone ESSE HiFi Rack (4 Tier)
• NorStone ESSE HiFi Rack (4 Tier) – A high-quality hi-fi furniture solution built with gloss-black epoxy-lacquered steel and tempered glass shelves, offering clean aesthetics and functional support for serious audio systems.
• Audio-System Ready Construction – The rack’s design separates electronics across four levels, helping improve ventilation and reduce mechanical and electrical interference—ideal for high-fidelity audio setups.
• Dimensions & Shelf Capacity – External size of 570 mm (W) × 860 mm (H) × 400 mm (D) with shelf spacing of 222 mm; upper shelf rated at 20 kg, internal shelves 20 kg each, and bottom shelf 40 kg.
• Load Rating & Stability – Each glass shelf supports substantial weight (bottom shelf up to 40 kg) with a net rack weight ~23.3 kg, providing stable, vibration-resistant support for components.
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Lumin X1 Reference Streamer DAC
• Reference Streaming DAC Overview – The Lumin X1 Reference Streamer DAC delivers flagship digital performance with dual-mono conversion, fibre networking and exceptional transparency, providing a world-class digital source for demanding high-end audio systems.
• DAC Architecture & Digital Processing – Featuring dual ESS Sabre ES9038Pro chips, advanced clocking and discrete output stages, the Lumin X1 Reference Streamer DAC achieves remarkable resolution, low noise and natural tonal accuracy across high-resolution formats.
• DAC: Dual ESS Sabre ES9038Pro (dual-mono)
• Power Supply: External dual-toroidal linear power supply
• Inputs: Ethernet, USB, Optical, SPDIF, AES/EBU
• Outputs: USB, BNC, AES/EBU, Optical, Coaxial, Balanced & RCA analog
• Formats Supported: PCM up to 384kHz, DSD512, full MQA decoding
• Clocking: Precision femto clock system
• Chassis: CNC-milled aluminum dual-chassis
• Dimensions: Main unit 350 × 345 × 60 mm / Power supply 106 × 60 × 334 mm
• Weight: ~15kg combined
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Herron Audio is an American audio manufacturer specialising in valve-based preamplifiers and phono stages designed for musical accuracy and low-noise performance. The brand’s philosophy focuses on simplicity, careful component selection, and circuit stability to deliver natural tonal balance and dynamic nuance.
Herron Audio products are built for longevity, with designs that prioritise serviceability and conservative operating points. This makes pre-owned Herron Audio equipment especially appealing to vinyl enthusiasts and tube aficionados seeking reference-quality performance without frequent upgrades.
Across Singapore, Malaysia, and Southeast Asia, Herron Audio is respected among listeners building serious analog and tube-based systems. On SoundTribeAsia, Herron Audio equipment — new and pre-owned — is offered by verified dealers, providing transparent condition reporting and trusted access through a curated regional marketplace.