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Soulnote M3 Mono Amplifier
• Overview – The Soulnote M3 Mono Amplifier, released in 2019, is a solid state pure Class A monoblock design engineered with zero global feedback topology to deliver ultra-fast transient response and uncompromised musical transparency.
• Circuit Architecture – Built around Soulnote’s non-parallel push-pull output stage and discrete driver design, the amplifier emphasizes instantaneous current delivery, wide bandwidth, and exceptionally low phase distortion.
• Sonic Character – The Soulnote M3 Mono Amplifier is celebrated for explosive dynamics, deep tonal saturation, and expansive soundstage layering, making it ideal for high-resolution loudspeakers requiring precision and authority.
• Specifications – Pure Class A solid state topology, approximately 200W into 8Ω and 400W into 4Ω, wide frequency response beyond 20Hz–100kHz, extremely low distortion, and high current capability for difficult loads.
• Dimensions – Each chassis measures approximately 454 mm wide × 189 mm high × 430 mm deep, requiring generous ventilation to support continuous Class A thermal operation.
• Weight – Each monoblock weighs roughly 32 kg, reflecting oversized transformers, heavy aluminum construction, and substantial heat sinking for stable, long-term performance.
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SoulNote A-2 Ver. 2 Integrated Amplifier
Soulnote A-2 v2
Soulnote A-2 v2 is a fully balanced, non NFB integrated amplifier designed to preserve timing, texture, and dynamic swing while offering flexible operating modes for real systems.
Design and engineering
The A-2 v2 carries Soulnote’s discrete, wide bandwidth gain architecture with a short signal path and mechanical tuning derived from the Series 3 program. Revisions to device selection, biasing, and grounding reduce stored energy and lower audible residue, yielding cleaner transients and a more stable image.
What changed from A-2 (previous version)
The v2 platform strengthens current delivery and simplifies the voltage gain loop for higher purity. The driver stage also uses the same TO3P transistor as the output stage. By passing a large current through the driver, it instantly compensates for HFE fluctuations caused by current changes in the output stage. This is the biggest difference and breakthrough from the prior version. The power amp mode now hard bypasses selector and volume control for those who prefer a separate preamp. Chassis and top cover treatment improve resonance control compared to the earlier A-2.
Connectivity and control
Balanced and single ended inputs are relay switched, with a balanced attenuator for consistent channel tracking. Four modes cover integrated stereo, bi amp mono, power amp stereo, and power amp bi amp. Control logic is isolated so audio circuits remain quiet during operation.
What distinguishes it
Fast, high current drive with a lively, uncompressed presentation and the flexibility to act as a true power amp when required.
Who it is for
Listeners who value natural timing, wide bandwidth clarity, and the option to reconfigure the amplifier as their system evolves.
In the box
Main unit, metal remote control, AC power cable, spike feet, documentation.
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SoulNote RSC Speaker Cables (3m)
• Product Overview – SoulNote RSC Speaker Cables (3m), released in the late-2010s, reflect SoulNote’s purist design philosophy, focusing on ultra-low loss signal transfer, mechanical resonance control, and natural musical expression.
• Cable Design Philosophy – Built using high-purity copper conductors and SoulNote’s resonance-controlled construction, these cables minimise stored energy and phase distortion, preserving timing accuracy, dynamics, and tonal neutrality across wideband loudspeakers.
• Sonic Performance – The SoulNote RSC Speaker Cables (3m) deliver fast transient response, clean bass articulation, and an open midrange, making them ideal for revealing high-resolution systems that prioritise realism and rhythmic coherence.
• Specifications – Low-resistance conductor geometry, carefully managed inductance and capacitance, non-magnetic materials throughout, and mechanically damped structure to reduce vibration-induced coloration and maintain consistent electrical characteristics.
• Dimensions – Each cable is supplied in a 3-metre length, offering practical reach for most floorstanding speaker placements while maintaining consistent impedance and signal integrity throughout the full run.
• Weight – Moderate overall mass reflecting solid conductor density and damping materials, designed to provide stability without placing excessive mechanical stress on amplifier or loudspeaker binding posts.
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Naim Audio NAC122X Preamplifier and NAP150X Power Amplifier
• Product Overview – The Naim Audio NAC122X Preamplifier and NAP150X Power Amplifier, released in 2006, is a solid-state Class AB separates combination delivering classic Naim pace, timing, and musical drive in a compact, upgradeable format.
• Musical Performance – This pairing is known for rhythmic coherence, strong dynamic contrast, and excellent midband clarity, making it an engaging match for efficient loudspeakers and listeners who value musical flow over hi-fi effects.
• System Synergy – The Naim Audio NAC122X Preamplifier and NAP150X Power Amplifier benefits from Naim’s modular power supply philosophy, allowing meaningful performance upgrades through external PSU options such as the FlatCap or HiCap.
• Specifications – The power amplifier delivers approximately 50 watts per channel into 8 ohms, with high current capability and stable operation into 4 ohms, optimized for real-world loudspeaker control rather than headline power figures.
• Dimensions – Each unit measures approximately 432 mm (W) × 87 mm (H) × 314 mm (D), sharing Naim’s compact full-width chassis design for easy rack integration and consistent system aesthetics.
• Weight – The preamplifier weighs around 6 kg, while the power amplifier weighs approximately 10 kg, reflecting Naim’s emphasis on robust power supplies and mechanically grounded construction.
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SOULNOTE D-3 DAC
• Overview – SOULNOTE D-3 DAC, released in 2020, is a reference-class digital-to-analog converter designed with SoulNote’s zero-feedback architecture to deliver highly accurate, ultra-low distortion conversion and musical transparency.
• Digital Architecture – Utilising discrete analogue filter stages and precision clocking, the D-3 DAC preserves timing integrity and dynamic expression, providing outstanding resolution and spatial coherence from PCM and DSD sources.
• Sound Quality – The SOULNOTE D-3 DAC is prized for its natural midrange clarity, refined treble extension, and low noise floor, allowing connected preamplifiers and amplifiers to reveal deeper musical nuance across genres.
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SOULNOTE A-3 Reference Integrated Amplifier
• Overview – SOULNOTE A-3 Reference Integrated Amplifier, released in 2021, is a solid-state Class AB integrated design without DAC or phono, engineered for ultimate signal purity and unrestricted current delivery.
• Circuit Philosophy – Built around SoulNote’s zero-feedback, non-parallel architecture, the amplifier prioritises instantaneous current response, wide bandwidth, and natural harmonic flow, appealing strongly to purist audiophiles.
• Sonic Character – SOULNOTE A-3 Reference Integrated Amplifier delivers exceptional dynamic contrast, dense tonal colour, and expansive soundstage depth, excelling with difficult loudspeaker loads and revealing high-resolution source components.
• Specifications – Rated at approximately 120 W per channel into 8 ohms and 240 W into 4 ohms, with ultra-high current capability, wide frequency response, and discrete output devices optimised for low impedance control.
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Naim NAC 332 Preamplifier
• Product Overview – The Naim NAC 332 Preamplifier, released as part of Naim’s 300 Series New Classic range, is a high-resolution analogue preamp with discrete Class A input stages and advanced volume control for superb musical clarity.
• Design & Connectivity – Featuring balanced XLR, RCA, DIN inputs, configurable input buttons, and headphone output, the NAC 332 offers effortless system integration and flexible routing with premium control and responsiveness.
• Sound Character – The NAC 332 delivers natural dynamics, engaging rhythm, and refined tonal balance, preserving micro-details and broad soundstage depth that unlock the full potential of connected power amplifiers.
• Specifications – Nominal frequency response extends beyond 3Hz-40kHz, distortion as low as 0.003% (1kHz), low noise floor, precision fixed-resistor volume control and bi-directional ZigBee remote control.
• Dimensions – Approximately 432 mm (W) × 91.5 mm (H) × 317.5 mm (D), with sleek anodised aluminium chassis engineered for rigidity, vibration suppression, and elegant integration into a reference system.
• Weight – Weighs roughly 11 kg (24.25 lbs), reflecting its robust construction, quality components, and substantial internal power supply for stable performance and long-term durability.
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Naim NAP 350 Monoblock
• Product Overview – Naim NAP 350 Monoblock Power Amplifiers, released in 2023, are solid-state Class D reference monoblocks using Naim’s Statement-derived technology, delivering immense power, speed, and control for flagship loudspeaker systems.
• Advanced Amplification Design – Each monoblock employs Naim’s proprietary Class D topology with ultra-fast switching, low noise floor, and optimised grounding, ensuring exceptional timing accuracy, dynamic headroom, and musical coherence.
• Sound Performance – The Naim NAP 350 Monoblock Power Amplifiers provide explosive dynamics, iron-fisted bass control, and expansive soundstage scale, while preserving Naim’s trademark rhythmic drive and natural tonal balance.
• Specifications – Rated at 175 W into 8 ohms and 345 W into 4 ohms per monoblock, stable into low-impedance loads, with wide bandwidth response and advanced thermal management for sustained high-level performance.
• Dimensions – Each chassis measures approximately 432 mm (W) × 91 mm (H) × 317 mm (D), matching Naim’s New Classic series proportions for seamless integration within reference-level Naim systems.
• Weight – Each monoblock weighs approximately 14.4 kg, reflecting substantial internal power regulation, mechanical isolation, and rigid enclosure construction essential for electrical stability and vibration control.
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Naim NSS 333 Streamer and Naim NPX 300 Power Supply
• Product Overview – Naim NSS 333 Streamer and Naim NPX 300 Power Supply, released in 2023, form a reference-level network player system, combining Naim’s latest streaming platform with an external power supply for ultimate performance.
• Streaming Architecture – Built around Naim’s new streaming platform, the system supports high-resolution PCM and DSD, advanced buffering, precision clocking, and galvanically isolated inputs for exceptionally low noise and timing accuracy.
• Sound Performance – The Naim NSS 333 Streamer and Naim NPX 300 Power Supply deliver expansive soundstage depth, authoritative bass grip, and refined microdynamics, revealing musical nuance and rhythmic drive characteristic of Naim reference sources.
• Specifications – Supports up to PCM 32-bit/384 kHz and DSD128, features balanced XLR and RCA outputs, multiple digital inputs, network streaming services, and discrete analogue stages powered independently by the NPX 300.
• Dimensions – Each chassis measures approximately 432 mm (W) × 91 mm (H) × 317 mm (D), maintaining Naim’s classic full-width enclosure format for seamless integration with reference-level Naim systems.
• Weight – NSS 333 weighs approximately 14 kg, while the NPX 300 power supply adds about 15 kg, reflecting substantial transformers, regulation stages, and vibration-controlled mechanical construction.
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SoulNote A-1 Ver. 2 Integrated Amplifier
• Product Overview – SoulNote A-1 Ver. 2 Integrated Amplifier, released in 2022, is a solid-state Class AB integrated amplifier using Soulnote’s zero-feedback philosophy, delivering exceptional speed, transparency, and natural musical flow.
• Circuit Architecture – Designed with fully discrete, non-NFB circuitry and simplified signal paths, the amplifier prioritises phase accuracy, micro-dynamic resolution, and tonal purity, appealing to listeners seeking uncoloured, high-resolution playback.
• Sound Performance – The SoulNote A-1 Ver. 2 Integrated Amplifier offers agile bass control, vivid midrange articulation, and extended treble clarity, pairing effortlessly with revealing loudspeakers and high-quality digital or analog sources.
• Specifications – Output power is approximately 80 W per channel into 8 ohms and 160 W into 4 ohms, featuring wide bandwidth, high current delivery, and a robust linear power supply.
• Dimensions – Approximate chassis dimensions are 454 mm (W) × 179 mm (H) × 407 mm (D), housed in a resonance-controlled aluminium enclosure optimised for electrical stability and thermal management.
• Weight – The unit weighs approximately 24 kg, reflecting its substantial transformer, high-capacity power supply components, and rigid mechanical construction designed to minimise vibration and noise.
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Naim NAC-N272
• Overview – Naim NAC-N272, released in 2015, is a network streaming preamplifier that combines a high-quality preamp, DAC, and streamer in one, offering broad format support and classic Naim analogue refinement.
• Streaming & Connectivity – Built-in UPnP streaming, Spotify Connect, TIDAL, Bluetooth (aptX), USB, and multiroom compatibility give versatile access to digital sources while maintaining superior signal integrity.
• Analogue Strength – The analogue volume control and preamp section reflect Naim’s heritage, delivering musical fluidity and coherence whether feeding power amps directly or paired with external DACs and sources.
• Specifications – Supports 24-bit/192 kHz and DSD64 streaming, balanced DIN and RCA inputs, six digital inputs, Class A headphone output, variable/fixed outputs, and optional power supply upgrades for enhanced performance.
• Dimensions – Naim NAC-N272 is approx. 432 mm (W) × 87 mm (H) × 314 mm (D), designed in Naim’s classic aluminium chassis for robust build quality and easy rack integration.
• Weight – Roughly 12.5 kg, reflecting solid internal construction, quality power supply, and mechanical damping typical of Salisbury-built Naim components.
• Product Review – https://www.whathifi.com/naim/nac-n-272/review
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Naim 00-010-0082 Burndy Lead CD555
• Product Overview – The Naim 00-010-0082 Burndy Lead CD555 is a dedicated digital Burndy cable engineered to connect the CD555 CD player to its external Naim power supply for optimal performance.
• Digital Signal Integrity – Designed specifically for digital data transfer, this Burndy Lead ensures accurate clocking and stable signal transmission, reducing interference and preserving timing precision essential for high-resolution CD playback.
• Naim Burndy Architecture – Using Naim’s decoupled Burndy design, the cable physically separates digital signal paths from power regulation, minimizing noise contamination and maintaining musical coherence throughout the system.
• Reference-Level Compatibility – Intended exclusively for CD555 applications, the Naim 00-010-0082 Burndy Lead CD555 enables correct regulation and grounding, allowing the transport and DAC stages to operate at full reference potential.
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Naim Burndy Lead, 00-010-0077, 17 Pin, SNAXO, Super Line
• Product Overview – The Naim Burndy Lead, 00-010-0077, 17 Pin, SNAXO, Super Line is a dedicated multi-core cable engineered to connect Naim power supplies with SNAXO active crossovers and Super Line phono stages.
• Signal and Power Separation – Built around Naim’s Burndy architecture, the cable separates signal transmission from power delivery, significantly reducing interference while preserving timing accuracy, dynamics, and low-level musical information.
• Precision Naim Engineering – Manufactured to strict tolerances, this 17-pin Burndy Lead uses carefully specified conductors and locking connectors to ensure stable electrical contact, correct grounding, and long-term system reliability.
• Optimised System Integration – Designed specifically for SNAXO and Super Line applications, the Burndy Lead enables correct regulation and decoupling, allowing these components to perform at their intended reference-level capability.
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Naim Burndy Lead, 15 Pin, NAC 252
• Product Overview – The Naim Burndy Lead, 15 Pin, NAC 252 is a dedicated multi-pin signal and power cable designed specifically to link the NAC 252 preamplifier with compatible Naim external power supplies for optimal performance.
• Decoupled Signal Integrity – Using Naim’s Burndy architecture, the cable physically separates sensitive signal paths from power delivery, reducing interference and preserving timing accuracy, dynamic expression, and low-level musical detail.
• Precision Engineering – Manufactured to exacting tolerances, the 15-pin Burndy Lead employs high-quality conductors, secure locking connectors, and controlled impedance to ensure stable, noise-free communication between Naim components.
• System Synergy – Designed exclusively for the NAC 252, this Burndy Lead ensures correct grounding, regulation, and signal flow, allowing the preamplifier to operate at its full sonic potential within a Naim reference system.
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Naim NAC 282 with NAPSC, SuperCap DR and NAP 250 DR Power Amplifier
• Naim NAC 282 with NAPSC, SuperCap DR and NAP 250 DR Overview – This reference-level Naim system combines the NAC 282 preamp, NAPSC supply, SuperCap DR energised power delivery, and the solid-state Class A/B NAP 250 DR amplifier for outstanding musical authority and refinement.
• High-Resolution Preamplification – The NAC 282 benefits from dual power inputs, with the NAPSC handling control circuitry and the SuperCap DR providing ultra-stable regulated rails, dramatically lowering noise and enhancing microdynamic clarity.
• NAP 250 DR Drive & Precision – Featuring Naim’s DR (Discrete Regulator) technology and robust Class A/B output stage, the NAP 250 DR delivers exceptional timing, grip, and dynamic swing, ensuring precise control over a wide range of speakers.
• Synergistic System Performance – Together, the NAC 282, NAPSC, SuperCap DR and NAP 250 DR form a highly coherent amplification chain, producing expansive soundstaging, powerful rhythmic expression, and Naim’s signature PRaT (pace, rhythm, timing).
• Dimensions – NAC 282: 432 × 87 × 314 mm; NAPSC: 121 × 57 × 187 mm; SuperCap DR: 432 × 122 × 374 mm; NAP 250 DR: 432 × 90 × 314 mm.
• Weight – NAC 282 approx. 7.0 kg; NAPSC approx. 2.1 kg; SuperCap DR approx. 14 kg; NAP 250 DR approx. 14.2 kg, all contributing to robust mechanical stability and low-noise operation.
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Naim Audio NAP300 and NAC252 Supercap
• Naim Audio NAP300 and NAC252 Supercap Overview – Released in the early 2000s, this solid-state Class AB amplifier and reference preamplifier system uses dual-chassis power supplies to deliver exceptional musicality, clarity, and current-drive authority.
• Reference Preamplifier Precision – The NAC252, powered by the Supercap, employs discrete Class A gain stages and regulated supply rails, providing ultra-low noise performance, superb timing accuracy, and precise microdynamic expression across all sources.
• Dual-Chassis Power & Control – The Naim Audio NAP300 and NAC252 Supercap pairing offers 90W per channel with high-current delivery, ensuring exceptional loudspeaker grip, wide dynamic headroom, and the rhythmic drive Naim is renowned for.
• Advanced Mechanical & Electrical Engineering – With mechanically decoupled boards, aluminium casework, and multi-stage regulated power supplies, the system achieves remarkable stability, low distortion, and reliable long-term reference performance.
• Dimensions – NAC252: 432 × 87 × 314 mm. Supercap: 432 × 87 × 314 mm. NAP300 head unit: 432 × 87 × 314 mm; NAP300 PSU: 432 × 135 × 314 mm.
• Weight – NAC252 approx. 7 kg; Supercap approx. 15 kg; NAP300 system approx. 23–25 kg, reflecting substantial transformers and isolated power architecture.
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Naim Audio Ovatar S-600
• Naim Audio Ovator S-600 Overview – The Naim Audio Ovator S-600, launched in 2009, is a high-end floorstanding loudspeaker featuring the groundbreaking BMR (Balanced Mode Radiator) driver for exceptional coherence, wide dispersion, and phase-accurate musical performance.
• BMR Wideband Driver Excellence – At the core of the Ovator S-600 is Naim’s 82mm BMR unit, delivering seamless integration of midrange and treble with superb imaging, natural tonality, and an enveloping, room-filling soundstage.
• Powerful Low-Frequency System – The Naim Audio Ovator S-600 employs dual 200mm bass drivers housed in a rigid, isolated lower enclosure, providing deep, articulate, and controlled bass that maintains timing precision and musical agility.
• Innovative Cabinet and Suspension Design – Featuring a decoupled vertical dispersion module, multi-layered enclosure construction, and internal damping, the Ovator S-600 minimises resonances and preserves clarity even at high listening levels.
• Dimensions – Approx. 1,350 mm (H) × 370 mm (W) × 450 mm (D), giving it a substantial floorstanding presence optimised for stability and accurate acoustic dispersion.
• Weight – Around 45–50 kg per speaker, ensuring rigidity, vibration control, and improved low-frequency performance consistent with Naim’s reference-class engineering.
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Naim Audio NAC552 Preamp NAP500 Amplifier
• Naim Audio NAC552 Preamp NAP500 Amplifier Overview – Released in the early 2000s, this flagship Class AB solid-state pairing delivers Naim’s highest level of musical transparency, current drive, and system authority using dual-chassis designs with external power supplies.
• Reference-Grade Preamp Performance – The NAC552 features suspended circuit boards, discrete Class A gain stages, and the 552PS supply, offering ultra-low noise, holographic imaging, and unmatched musical timing across all high-resolution sources.
• Flagship Power Delivery – The Naim Audio NAC552 Preamp NAP500 Amplifier system provides immense dynamic headroom, exceptional speaker control, and unparalleled clarity, combining precision transistor output stages with a massive toroidal supply.
• Ultimate Naim Engineering – Both units employ mechanical decoupling, rigid aluminium casework, and high-voltage regulation, ensuring long-term stability, low distortion, and reference-level performance in demanding audio environments.
• Dimensions – NAC552: 432 mm (W) × 87 mm (H) × 314 mm (D) with 552PS at 432 mm × 87 mm × 314 mm. NAP500 and its PSU each approx. 432 mm × 135 mm × 374 mm.
• Weight – NAC552 approx. 12 kg combined with PSU; NAP500 system around 40–45 kg, reflecting its heavy transformer mass and mechanically isolated dual-chassis architecture.
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Naim Audio NAP135 (Pair)
• Naim Audio NAP135 Overview – The Naim Audio NAP135, introduced in the late 1980s, is a Class AB solid-state monoblock amplifier designed to deliver exceptional current drive, speed, and control, making it one of Naim’s most iconic power amplifiers.
• Monoblock Power and Precision – With a dedicated transformer and power supply per channel, the NAP135 achieves outstanding channel separation, dynamic authority, and stability, ensuring effortless control over demanding loudspeakers in complex musical passages.
• Legendary Naim Timing and Drive – The Naim Audio NAP135 is renowned for its PRaT (pace, rhythm, and timing), offering fast transients, articulate bass response, and natural musical flow that has cemented its cult status among Naim enthusiasts.
• Robust British Engineering – Built with a mechanically decoupled circuit layout, oversized toroidal transformer, and rigid aluminium chassis, the NAP135 provides long-term reliability, low noise performance, and exceptional mechanical stability.
• Dimensions – Approx. 160 mm (W) × 160 mm (H) × 300 mm (D), offering a compact monoblock footprint optimised for flexible placement in high-end Naim system racks.
• Weight – Around 12 kg per monoblock, reflecting the heavy transformer and rigid casework essential for stable power delivery and low mechanical resonance.
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Naim Audio NAC52 Preamplifier with NAP135 Monoblock
• Naim Audio NAC52 Preamplifier with NAP135 Monoblock Overview – The NAC52 (1991) paired with NAP135 monoblocks forms a reference solid-state Class AB system renowned for speed, control, and the authoritative musicality that defines classic Naim performance.
• Reference Preamplifier Precision – The NAC52 uses discrete Class A gain stages, fully isolated circuitry, and ultra-low-noise architecture to deliver exceptional timing accuracy, microdynamic detail, and natural tonal integrity.
• Monoblock Drive and Control – The Naim Audio NAC52 Preamplifier with NAP135 Monoblock combination provides 75W of high-current power per channel, ensuring superb loudspeaker grip, dynamic authority, and articulate bass performance.
• Legendary Naim Engineering – Featuring mechanically decoupled boards, robust toroidal supplies, and rigid aluminium casework, the NAC52/NAP135 system offers long-term stability and reliable high-resolution musical reproduction.
• Dimensions – NAC52: approx. 432 mm (W) × 76 mm (H) × 301 mm (D). NAP135 monoblocks: approx. 160 mm (W) × 160 mm (H) × 300 mm (D) each.
• Weight – NAC52 approx. 7 kg; each NAP135 approx. 12 kg, reflecting their heavy-duty transformers and solid mechanical isolation design.
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Naim Audio NAC52 Preamplifier and SuperCap Power Supply
• Naim Audio NAC52 Preamplifier and SuperCap Power Supply Overview – The Naim Audio NAC52, introduced in 1991, is Naim’s reference solid-state preamplifier, paired with the SuperCap to deliver ultra-low-noise, high-current power for unparalleled musical transparency.
• Reference-Level Preamp Performance – Featuring discrete Class A gain stages, precision volume control, and fully separated signal paths, the NAC52 achieves exceptional clarity, timing accuracy, and microdynamic expressiveness across all sources.
• SuperCap Power Precision – The Naim Audio NAC52 Preamplifier and SuperCap Power Supply combination provides 13 regulated supplies, dramatically lowering noise and enhancing dynamics, soundstage depth, and tonal refinement.
• Naim Reference Engineering – Built with mechanical decoupling, rigid casework, and premium component selection, the NAC52 system maintains long-term reliability and consistently reveals the musical intent of every recording.
• Dimensions – NAC52: approx. 432 mm (W) × 76 mm (H) × 301 mm (D). SuperCap: approx. 432 mm (W) × 122 mm (H) × 374 mm (D), optimised for rack placement.
• Weight – NAC52 approx. 7 kg; SuperCap approx. 15–17 kg, reflecting its large transformer mass and robust regulated power architecture.
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Naim Audio NAP500
• Naim Audio NAP500 Overview – The Naim Audio NAP500, released in 2000, is a flagship solid-state Class AB stereo power amplifier featuring a dual-chassis design with external power supply for exceptional clarity, stability, and musical authority.
• Reference-Class Power Delivery – Engineered with Naim’s discrete transistor output stage and a massive toroidal supply, the NAP500 delivers immense current, superb dynamic swing, and complete control over demanding loudspeakers at any volume.
• Precision and Musicality – The Naim Audio NAP500 maintains remarkable timing accuracy, low noise, and holographic imaging, offering a deeply engaging presentation suited for high-resolution sources and premium reference systems.
• Flagship Build and Engineering – With a resonance-controlled aluminium casework, suspended circuit boards, and advanced thermal management, the NAP500 ensures long-term reliability and consistent high-level performance.
• Dimensions – Amplifier head unit approx. 432 mm (W) × 135 mm (H) × 374 mm (D); power supply approx. 432 mm (W) × 135 mm (H) × 374 mm (D).
• Weight – Combined system weight approx. 40–45 kg, reflecting the substantial transformer mass and mechanically isolated chassis architecture.
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Naim Audio NAC72 Preamplifier
• Overview – The Naim Audio NAC72 Preamplifier, introduced in the early 1990s, is a classic modular preamp known for its PRaT-driven sound, upgrade flexibility, and signature Naim musical engagement.
• Performance – Featuring discrete gain stages and swappable plug-in boards, the NAC72 offers exceptional timing, clarity, and rhythmic drive, making it one of Naim’s most celebrated vintage preamps.
• Upgrade Capability – Compatible with Naim power supplies such as HiCap and FlatCap, the NAC72 significantly improves resolution, dynamics, and noise performance when paired with higher-grade external supplies.
• System Synergy – The Naim Audio NAC72 Preamplifier works optimally with classic Naim power amplifiers, delivering cohesive timing, controlled transients, and a lively, forward presentation favored by Naim enthusiasts.
• Dimensions – Approx. 432 mm (W) × 76 mm (H) × 301 mm (D), following Naim’s classic olive-series chassis footprint for seamless rack integration.
• Weight – Around 5 kg, with a dense and well-shielded internal structure that improves noise rejection and overall signal integrity.
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Adcom GFP-555 Preamp and GFA-5800 Power Amp
• Classic Adcom System – The Adcom GFP-555 Preamp and GFA-5800 Power Amp, introduced in the early 1990s, deliver robust solid-state performance with high-current Class AB amplification, offering strong dynamics and clean, authoritative control.
• High-Resolution Preamp Design – The GFP-555 features low-noise circuitry, precise tone controls, a high-quality phono stage, and multiple inputs, giving the Adcom GFP-555 Preamp and GFA-5800 Power Amp excellent system flexibility.
• Powerful Amplification – The GFA-5800, designed by Nelson Pass, provides 250W per channel into 8 ohms with massive current reserves. This ensures the Adcom GFP-555 Preamp and GFA-5800 Power Amp can drive difficult speakers with ease.
• Musical, Neutral Presentation – The pairing delivers fast transient response, wide soundstage, and neutral tonal balance, making it a sought-after vintage combo for both audiophiles and collectors seeking reliable performance.
• Dimensions – Preamp: approx. 432 × 89 × 330 mm. Power amp: approx. 432 × 203 × 483 mm. Designed to fit standard audio racks with deep shelves.
• Weight – Preamp weighs about 7 kg; power amp around 28–30 kg, thanks to its heavy transformer and large heat sinks for stable high-current operation.
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Adcom is an American audio electronics brand known for delivering high-current amplification and robust engineering at accessible price points. Rising to prominence through its power amplifiers and preamplifiers, Adcom focused on reliability, drive capability, and straightforward circuit design.
Adcom amplifiers are built with conservative engineering margins and substantial power supplies, allowing many models to remain in active use decades after release. This makes pre-owned Adcom equipment especially attractive to listeners seeking dependable amplification with lasting performance.
Across Singapore, Malaysia, and Southeast Asia, Adcom continues to appeal to value-conscious audiophiles building reliable systems. On SoundTribeAsia, Adcom equipment — new and pre-owned — is offered by verified dealers, providing transparent listings and trusted access through a regional marketplace.