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Isotek Sigma Power Conditioner
• Overview – The Isotek Sigma Power Conditioner, released in 2015, is a solid-state mains conditioning component engineered to dramatically reduce electrical noise while maintaining unrestricted current delivery for high-performance audio systems.
• Power Architecture – Built around IsoTek’s advanced delta-filtering topology, the Isotek Sigma Power Conditioner isolates connected components, eliminating differential and common-mode noise while preventing cross-contamination between digital sources and high-current amplifiers.
• Sonic Performance – By lowering the system noise floor, the Isotek Sigma Power Conditioner improves bass articulation, dynamic contrast, image stability, and low-level resolution, especially noticeable in revealing reference-grade analogue and digital systems.
• Specifications – Rated for high-current audio use, featuring multiple individually filtered outlets, star-earthed grounding, internal copper bus bars, RFI/EMI suppression, and surge protection without dynamic compression or current limiting.
• Dimensions – Measures approximately 445 mm (W) × 150 mm (H) × 350 mm (D), designed for standard hi-fi racks while allowing sufficient ventilation and cable clearance for complex multi-component installations.
• Weight – Weighs roughly 15 kg, reflecting substantial internal filtering networks, shielding, and mechanical damping that contribute to stable, resonance-free operation and long-term electrical reliability.
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Isotek Evo3 Power Conditioner
• Product Overview – The Isotek Evo3 Power Conditioner (2016) is a solid-state mains conditioning solution designed to reduce electrical noise, improve current delivery, and enhance overall system clarity in high-resolution hi-fi setups.
• Filtering Topology – Employing IsoTek’s multi-stage delta filter network, the Isotek Evo3 Power Conditioner effectively removes both common-mode and differential-mode noise while preventing cross-contamination between connected audio components.
• Sonic Improvements – Users typically experience lower noise floor, improved micro-detail, tighter bass control, and greater soundstage depth, especially when used with sensitive digital sources and analogue front-end components.
• Specifications – Features high-current audio outlets, internal copper bus bars, star-earthed grounding, RFI/EMI suppression, and surge protection, all engineered to avoid current compression and preserve amplifier dynamics.
• Dimensions – Measures approximately 445 mm wide × 90 mm high × 305 mm deep, sized to integrate easily into standard hi-fi racks or equipment shelves without compromising ventilation or cable management.
• Weight – Weighs roughly 8 kg, reflecting robust internal filtering components, shielding, and mechanical construction designed to ensure stability, durability, and long-term performance consistency.
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Celestion 7000
• Reference Floorstander Overview – The Celestion 7000, released in November 1989, is a sealed-floorstander speaker utilizing Celestion’s ART ribbon tweeter and dual 200 mm woofers for wideband clarity, dynamic range, and strong bass authority.
• Ribbon Tweeter & Woofer Integration – With the ART ribbon delivering high-frequency detail and the twin cone woofers handling low-to-mid frequencies, the 7000 achieves smooth dispersion, coherent imaging, and a balanced tonal presentation across the audio spectrum.
• Acoustic Performance – The Celestion 7000 offers a frequency response of approximately 45 Hz–20 kHz (±3 dB), with potential down to ~38 Hz (–6 dB), delivering impactful low bass without sacrificing midrange clarity or treble refinement.
• Real-World Listening Character – The 7000 is often praised for its clean, transparent midrange, open treble, and controlled bass—making it a good match for analytical systems or those seeking detailed musical realism while retaining room-filling scale.
• Dimensions – Approx. 1200 mm (H) × 340 mm (W) × 347 mm (D). A robust yet relatively slim floorstanding design suited for medium to large listening spaces.
• Weight – Approximately 36.5 kg per speaker. The solid, well-braced cabinet and heavy construction contribute to stable bass response and reduced resonance for enduring, reliable audio performance.
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Yamaha NS-1000M
• Overview – The Yamaha NS-1000M, introduced in 1974, is a legendary studio monitor famed for its beryllium dome midrange and tweeter, delivering exceptional transparency, transient accuracy, and reference-level neutrality for critical listening.
• Beryllium Drivers – Featuring Yamaha’s iconic 3 cm beryllium tweeter and 8.8 cm beryllium midrange, the NS-1000M provides ultra-fast response, superb micro-detail, and minimal coloration—qualities that made it a worldwide studio standard.
• Controlled Bass Performance – Equipped with a 30 cm woofer in a rigid sealed enclosure, the NS-1000M achieves tight, articulate bass with excellent timing, ideal for both analytical and musical listening environments.
• Precision Monitor Heritage – The Yamaha NS-1000M remains sought after for its highly accurate soundstage, exceptional build quality, and ability to reveal upstream component changes with absolute clarity and honesty.
• Dimensions – Each speaker measures approximately 395 mm (W) × 675 mm (H) × 326 mm (D), offering a substantial enclosure optimized for neutrality and controlled resonance.
• Weight – Each cabinet weighs around 31 kg, contributing to its stable acoustic behavior and resistance to unwanted vibrations in demanding monitoring setups.
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Celestion SL600 with Foundation Classic 2 Speaker Stands
• Overview – The Celestion SL600 with Foundation Classic 2 Speaker Stands, introduced in 1986, features Aerolam honeycomb cabinets and advanced aluminium dome tweeters, delivering exceptional neutrality, imaging precision, and minimal cabinet coloration.
• Aerolam Technology – The Celestion SL600 uses aerospace-grade Aerolam panels that dramatically reduce cabinet resonance, allowing superior midrange purity and an uncolored, highly transparent presentation ideal for nearfield or dedicated listening rooms.
• High-Resolution Tweeter – Equipped with an advanced alloy dome tweeter and carefully matched crossover, the Celestion SL600 maintains excellent transient response, natural timbre, and wide dispersion for immersive stereo soundstaging.
• Stand Synergy – The Foundation Classic 2 Speaker Stands provide rigid support, optimized height, and mass-loading capability, enhancing bass articulation and stabilizing the Celestion SL600 for improved clarity and dynamic consistency.
• Dimensions – Speakers: approx. 305 mm (H) × 190 mm (W) × 235 mm (D). Stands: approximately 610 mm (height), designed specifically to match SL-series alignment.
• Weight – Speakers weigh around 5–6 kg each due to Aerolam construction; stands weigh approx. 12–15 kg per pair, providing excellent stability and vibration control.
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Kimber Kables 4TC Speaker Cables (3.1m)
• High-Purity Cable Design – Kimber Kables 4TC Speaker Cables (3.1m) use Kimber’s classic braided geometry, offering exceptional noise rejection, improved conductivity, and transparent signal transfer for clean, natural, and highly detailed musical playback.
• Eight-Conductor Architecture – The Kimber Kables 4TC Speaker Cables (3.1m) feature four blue and four black Teflon-insulated conductors, delivering excellent phase coherence, low capacitance, and smooth frequency balance across demanding loudspeaker systems.
• Superior Tonal Neutrality – These cables provide balanced bass control, open midrange presence, and refined treble extension, making them ideal for systems requiring neutrality, improved imaging, and enhanced microdynamic resolution.
• System Compatibility – The Kimber Kables 4TC Speaker Cables pair well with tube and solid-state amplifiers, offering stable performance and flexible termination options for a wide range of high-quality loudspeakers.
• Dimensions – Typical length 2–3 meters depending on configuration, featuring Kimber’s signature hand-braided construction designed for consistent electrical performance and reduced electromagnetic interference.
• Weight – Lightweight yet robust, approximately 0.4–0.6 kg per stereo pair depending on length, ensuring easy routing, optimal flexibility, and long-term durability.
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Yamaha A-S501
• Integrated Amplifier Overview – The Yamaha A-S501 is a Class AB integrated amplifier delivering clean, dynamic power with natural tonal balance and excellent control, offering a highly musical foundation for mid- to upper-level stereo systems.
• Amplification & Circuit Design – Featuring a discrete Class AB topology, ToP-ART chassis layout and high-quality audio-grade components, the Yamaha A-S501 provides low distortion, strong transient response and smooth, detailed presentation across all genres.
• Connectivity & System Integration – With optical, coaxial, multiple analogue inputs, phono stage and subwoofer output, the Yamaha A-S501 supports wide system compatibility, enabling flexible integration with turntables, streamers and digital transports.
• Performance & Listening Characteristics – Delivering 85W per channel into 8 ohms, the Yamaha A-S501 offers tight bass, articulate mids and crisp highs, maintaining clarity and rhythm even with demanding loudspeaker loads.
• Product Dimensions – The Yamaha A-S501 measures 435 mm (W) × 151 mm (H) × 387 mm (D), providing a substantial chassis engineered for stability, efficient heat management and vibration resistance.
• Product Weight – Weighing approximately 10.3 kg, the Yamaha A-S501 benefits from a solid power supply and rigid internal bracing, enhancing mechanical grounding and improving overall sonic performance.
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Celestion is a British loudspeaker brand with a legacy rooted in driver manufacturing for both professional and consumer audio. Known for its work in loudspeaker transducers, the brand has contributed significantly to the development of efficient, musically expressive drivers used in a wide range of applications.
Celestion loudspeakers and drivers are built with durability and consistency in mind, which allows many designs to remain relevant long after their original release. Because fundamental driver technology evolves gradually, pre-owned Celestion equipment continues to offer dependable performance for both hi-fi and specialist applications.
Across Singapore, Malaysia, and Southeast Asia, Celestion is respected among enthusiasts who appreciate classic British engineering and reliable sound reproduction. On SoundTribeAsia, Celestion products — new and pre-owned — are listed by verified dealers, providing transparent access through a trusted regional marketplace.






