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Goldmund Telos 390.5
• Product Overview – The Goldmund Telos 390.5, released in 2018, is a solid-state Class AB integrated amplifier featuring an onboard DAC and preamplification stage, delivering exceptional transparency, precision timing, and superior dynamic handling.
• Advanced Signal Processing – Incorporating Goldmund’s Leonardo Time Correction technology, the Telos 390.5 ensures phase-accurate reproduction, improving soundstage coherence, transient precision, and natural musical flow across complex recordings.
• High-Current Drive – The amplifier’s robust output stage provides exceptional control over low-impedance speakers, while its ultra-low-noise architecture preserves micro-detail and maintains stability even under demanding dynamic loads.
• Construction Excellence – Precision-machined chassis, mechanical grounding, and internal vibration control systems allow the Goldmund Telos 390.5 to minimize resonance, ensuring purer signal delivery and long-term reliability.
• Dimensions – Approx. 440 mm (W) × 430 mm (D) × 135 mm (H), optimized to house its DAC module, preamp circuitry, and high-current output section within a resonance-controlled enclosure.
• Weight – Around 22 kg, reflecting its solid power supply, reinforced mechanical structure, and premium-grade components employed to meet Goldmund’s reference standards.
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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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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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BAT Rex2 Amplifier
Compelling 6-Bullet Sales-Focused Description – BAT Rex2 Amplifier
• Overview – BAT Rex2 Amplifier, released in 2010, is a Class A tube amplifier featuring fully balanced circuitry, high-current output.
• Circuit Design – Built on Balanced Audio Technology’s zero-global-feedback, fully balanced topology, the design prioritizes signal purity, low noise, and exceptional channel separation across complex musical material.
• Sonic Character – BAT Rex2 Amplifier delivers commanding bass authority, expansive soundstage depth, and lifelike dynamic swings, maintaining composure with difficult speaker loads and high listening levels.
• Specifications – Rated at approximately 250 watts per channel into 8 ohms and 500 watts into 4 ohms, using MOSFET outputs, dual-mono power supplies, balanced inputs, and optional internal DAC or phono modules.
• Dimensions – Approximately 444 mm (W) × 235 mm (H) × 508 mm (D), housed in a resonance-controlled chassis engineered for thermal stability and long-term high-power operation.
• Weight – Approximately 49 kg, reflecting massive transformers, extensive power storage, and heavy-duty internal construction essential for sustained high-current performance.
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Coda Technologies TM monoblocks (500W/C)
• Coda Technologies TM Monoblocks (500W/C) – High-current Class AB solid-state monoblocks delivering exceptional dynamic authority, low noise, and vast headroom, engineered for full control of the most demanding loudspeakers.
• Massive Power Delivery – Each TM monoblock produces a continuous 500 watts into 8 ohms with effortless scaling into lower impedances, ensuring stability, grip, and uncompromised performance under complex musical passages.
• Ultra-Low Distortion Architecture – Features high-biased Class AB topology, precision-matched output devices, and large power reserves, enabling holographic imaging, superior microdetail retrieval, and highly accurate transient reproduction.
• Reference-Grade Engineering – Built with robust transformers, premium capacitors, and oversized heatsinks, the TM monoblocks maintain thermal stability and long-term reliability consistent with Coda’s professional design heritage.
• Dimensions – Each monoblock measures approximately 432 mm (W) × 191 mm (H) × 460 mm (D), sized for proper rack integration while allowing optimal ventilation.
• Weight – Each amplifier weighs about 36–40 kg, with transformer mass and heavy chassis construction contributing to vibration control and electrical stability.
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Gryphon Diablo 120
• Integrated Amplifier Overview – The Gryphon Diablo 120 is a Class A/B fully dual-mono integrated amplifier delivering exceptional transparency, dynamic authority and low noise, designed for audiophiles seeking true high-end performance in a compact chassis.
• Dual-Mono Circuit Architecture – Employing discrete, wide-bandwidth circuitry and ultra-short signal paths, the amplifier provides remarkable clarity, fast transient response and excellent channel separation, with one mention of Gryphon Diablo 120 reinforcing its precision.
• Power Delivery & Control – With 120W into 8Ω and doubling into lower impedances, the amplifier drives complex loudspeakers with ease, offering deep bass control, expansive imaging and convincing dynamic swing, plus one additional mention of Gryphon Diablo 120.
• Upgrade & Connectivity Options – The modular design supports optional DAC and phono boards, providing flexible system expansion, while maintaining Gryphon’s signature tonal purity, micro-detail retrieval and uncompromising analogue performance.
• Product Dimensions – The chassis measures approximately 480 mm (W) × 150 mm (H) × 420 mm (D), requiring a well-ventilated, stable platform to ensure optimal thermal performance and electronic stability.
• Product Weight – Weighing around 25 kg, the rigid aluminium enclosure and high-mass transformer foundation enhance mechanical damping, reduce vibration and improve overall signal integrity.
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MBL C51 Integrated Amplifier
• MBL C51 Integrated Amplifier – This premium Class AB integrated amplifier combines high-current power delivery with MBL’s signature refinement, offering holographic imaging, smooth dynamics, and authoritative control suitable for demanding loudspeaker systems.
• Advanced Pre/Power Architecture – The C51 uses discrete circuitry, ultra-low-noise voltage regulation, and precision volume control to ensure exceptional signal purity, delivering lifelike tonal accuracy and outstanding microdynamic resolution.
• High-Current Output Performance – MBL C51 Integrated Amplifier is rated at 180W into 8Ω and 300W into 4Ω, the C51 provides excellent stability, grip, and transient impact, enabling it to drive complex speaker loads effortlessly and musically.
• Premium Noble Line Engineering – Borrowing from MBL’s flagship designs, the C51 features robust internal layout, resonance-optimized chassis construction, and meticulous parts selection to ensure consistent high-end performance.
• Dimensions – Approx. 440 mm (W) × 183 mm (H) × 390 mm (D). The sculpted Noble Line chassis provides superior mechanical stability and ventilation for reliable long-term operation.
• Weight – Approximately 28 kg, offering excellent mass damping and structural rigidity that enhances noise reduction and overall sonic refinement.
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Jadis JA80 Tube Monoblocks
• Overview – The Jadis JA80 Tube Monoblocks, first released in 1985, are Class A tube power amplifiers using KT88 or KT90 valves, delivering renowned French craftsmanship, tonal richness, and dynamic authority for high-end loudspeakers.
• Tube Architecture – Each JA80 monoblock features hand-wired point-to-point construction, oversized transformers, and premium tubes, producing a fluid, harmonically saturated presentation with exceptional micro-detail and musical expressiveness.
• Power & Drive – Delivering approximately 60W of pure Class A power per chassis, the Jadis JA80 provides strong current delivery and excellent speaker control, making it suitable for complex or low-efficiency speakers.
• Build & Craftsmanship – The amplifiers showcase polished brass faceplates, heavy steel chassis, and meticulously selected components, ensuring durability, low mechanical resonance, and the signature Jadis aesthetic and sonic refinement.
• Dimensions – Each monoblock measures approx. 480 mm (W) × 230 mm (H) × 360 mm (D), accommodating large transformers and robust internal tube circuitry.
• Weight – Each unit weighs around 35–40 kg, reflecting the massive power supply architecture and premium transformer design essential for stable Class A tube performance.
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McIntosh C40 Preamplifier and MC2500 Amplifier
• System Overview – The McIntosh C40 Preamplifier and MC2500 Amplifier deliver a reference-grade combination known for immense power, ultra-low distortion, and exceptional musical authority, suited for both studio mastering and high-end home systems.
• C40 Preamplifier Capability – The C40 provides wide input flexibility, precision tone shaping, and McIntosh’s low-noise circuitry, ensuring a transparent, dynamically expressive signal path ideal for analog and digital front-end integration.
• MC2500 Power Delivery – With 500W per channel and Autoformer impedance matching, the MC2500 offers massive headroom, outstanding damping control, and effortless drive even for highly demanding full-range or low-efficiency loudspeakers.
• System Synergy – Together, the McIntosh C40 Preamplifier and MC2500 Amplifier produce a wide, stable soundstage with superb bass grip, rich harmonic texture, and the unmistakable “big Mac” presentation.
• Dimensions – C40: approx. 443 × 152 × 406 mm. MC2500: approx. 483 × 292 × 559 mm. Both components require substantial rack space due to their depth and transformer mass.
• Weight – C40 weighs around 13 kg, while the MC2500 is approximately 69 kg, supported by heavy transformers and robust heat-sinking for long-term stability and thermal control.
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Octave RE 320 and Super Black Box PS
• Octave RE 320 and Super Black Box PS – This powerful Class A/AB tube power amplifier system delivers exceptional dynamic range, stability, and tonal purity, with the Super Black Box providing massive energy reserves for demanding loudspeakers.
• High-Current Tube Output Stage – The RE 320 uses optimized KT150/KT120 tubes with intelligent bias control, producing remarkable drive, low distortion, and enhanced linearity for systems requiring both finesse and authoritative power.
• Super Black Box Power Expansion – Adding the Super Black Box dramatically improves current delivery, bass solidity, and transient response by multiplying capacitor storage capacity, resulting in cleaner microdynamics and deeper control.
• Precision German Engineering – Octave’s advanced power management, soft-start circuitry, and protective systems ensure long tube life, stable operation, and a highly refined presentation across complex musical passages.
• Dimensions – RE 320 approx. 451 mm (W) × 210 mm (H) × 460 mm (D). Super Black Box approx. 220 mm (W) × 180 mm (H) × 395 mm (D). Both units built for reference-grade rack placement.
• Weight – RE 320 approx. 28 kg; Super Black Box approx. 20 kg. Octave RE 320 and Super Black Box PS Heavy chassis design enhances vibration control, power stability, and overall sonic refinement.
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McIntosh MC53 Preamplifier
Specifications: McIntosh MC53 Preamplifier
• Type: Solid-state stereo preamplifier
• Inputs: 6 unbalanced RCA, 2 balanced XLR, 1 phono MM
• Outputs: 2 balanced XLR, 2 unbalanced RCA (Main & Fixed)
• Frequency Response: 20Hz – 20kHz (+0/–0.2dB)
• Total Harmonic Distortion: 0.002%
• S/N Ratio: 100dB (line), 85dB (phono)
• Dimensions: 17.5” (W) x 6” (H) x 18” (D)
• Weight: Approx. 13kg
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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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McIntosh MP1100
• Product Overview – The McIntosh MP1100, introduced in 2016, is a premium tube phono preamplifier using four 12AX7A valves, delivering exceptional analog purity, wide dynamic range, and highly accurate RIAA equalization.
• Advanced Tube Architecture – The MP1100 employs fully balanced tube gain stages, ultra-low noise circuitry, and dual-mono signal paths, ensuring superior channel separation and remarkably low distortion across all supported phono formats.
• Comprehensive Vinyl Compatibility – With multiple loading options, three selectable inputs, and both MC and MM support, the MP1100 accommodates a broad range of cartridges while maintaining the McIntosh signature analog refinement.
• Precision Engineering – The MP1100 integrates robust shielding, advanced filtering, and a vibration-controlled chassis, ensuring ultra-quiet operation and stable performance that preserves the natural texture of vinyl recordings.
• Dimensions – Approx. 445 mm (W) × 152 mm (H) × 483 mm (D), designed in classic McIntosh proportions for seamless installation with matching components.
• Weight – Around 13.6 kg, featuring a rigid steel chassis and heavy internal shielding that enhances structural stability and reduces microphonic interference.
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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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Accuphase AA70
• Overview – The Accuphase AA70, released in 1987, is a Class A solid-state stereo power amplifier delivering 60 watts per channel, designed with Accuphase’s signature precision circuitry and exceptional low-noise performance.
• Pure Class A Operation – Operating entirely in Class A, the Accuphase AA70 provides exceptionally smooth midrange, natural tonal warmth, and highly refined treble reproduction, characteristics prized by audiophiles and vintage Accuphase enthusiasts.
• Precision Japanese Engineering – The Accuphase AA70 incorporates high-quality discrete components, oversized power supply regulation, and robust build quality, ensuring stable current delivery and long-term reliability in demanding high-fidelity systems.
• Specifications – 60W per channel into 8 ohms in pure Class A operation, frequency response 20Hz–20kHz, low total harmonic distortion under 0.02%, high damping factor, heavy-duty power supply with large filter capacitors.
• Dimensions – Approximately 475 mm (W) × 170 mm (H) × 427 mm (D), reflecting Accuphase’s classic full-width chassis designed for optimal heat dissipation required for continuous Class A operation.
• Weight – Approximately 26 kg, demonstrating substantial internal transformer construction, heavy-duty heat sinks, and premium chassis engineering typical of vintage Accuphase Class A amplifiers.
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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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Silbatone Acoustics JI-107 Hybrid Integrated Amplifier
• Hybrid Integrated Amplifier Overview – The Silbatone Acoustics JI-107 Hybrid Integrated Amplifier is a Class A/B tube-solid-state design delivering 130W per channel into 8Ω and 200W into 4Ω, offering high power with tube character for demanding systems.
• NeoHyb Circuit Architecture – Using WE310 tubes for voltage gain and MOSFETs for current delivery, the JI-107 Hybrid Integrated Amplifier combines organic tube warmth with solid-state control, and one mention of the full product name ensures clarity.
• Direct-Coupled Signal Path – Eliminating coupling capacitors through servo-based level shifting, the Silbatone Acoustics JI-107 Hybrid Integrated Amplifier maintains ultra-low distortion, fast transient response and rich harmonic texture.
• High-Resolution Performance – With a frequency response of 10 Hz to 50 kHz (±1 dB) and high current drive, the Silbatone Acoustics JI-107 Hybrid Integrated Amplifier provides deep bass, refined midrange and expansive soundstage detail.
• Product Dimensions – Measures approximately 440 mm (W) × 420 mm (D) × 120 mm (H), designed for multiple configurations and to support the robust internal transformer and chassis structure.
• Product Weight – Weighing about 23 kg, the Silbatone Acoustics JI-107 Hybrid Integrated Amplifier uses a heavy-duty chassis and power supply coupling for mechanical stability and improved sonic performance.
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Naim Audio NAC 252 with Supercap (DR)
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Naim Audio NAC 252 with Supercap (DR) – A reference-grade analogue preamplifier driven by a separate Supercap power supply, delivering incredible clarity, ultra-low noise floor, and that hallmark Naim pace, rhythm and timing.
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Precision Input Architecture – Featuring four DIN inputs, two configurable DIN/RCA inputs, AV bypass mode and 75 mV input sensitivity, the NAC 252 offers flexible connectivity and serious signal integrity for advanced systems.
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Independent Regulation for Clean Power – With ten independently regulated power circuits fed by the Supercap-DR and separate supplies for control electronics, the NAC 252 ensures audio circuits remain fully isolated from interference.
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Upgrade-Compatible Architecture – Though its performance is impressive out of the box, the NAC 252 is compatible with further upgrades across the Naim ecosystem (e.g., SNAXO, NAPSC), making it ideal for future-proof high-end setups.
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Product Dimensions – Measures 87 mm high × 432 mm wide × 314 mm deep, ensuring compact integration in serious system racks without compromise.
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Weight Specification – Weighs approximately 7.0 kg, reflecting its robust build, tight tolerance mechanics and stable chassis for superior acoustic performance.
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Mcintosh MC462
• Overview – The McIntosh MC462, released in 2018, is a solid-state stereo power amplifier delivering 450 watts per channel, featuring McIntosh’s Autoformer technology for consistent power delivery across 2, 4, and 8 ohm speaker loads.
• Massive Power Delivery – Designed for effortless dynamic control, the McIntosh MC462 provides immense current reserves and headroom, allowing demanding loudspeakers to perform with authority, stability, and refined musical precision.
• Legendary McIntosh Engineering – The McIntosh MC462 incorporates Quad Balanced amplifier topology, oversized power supply architecture, and McIntosh’s iconic blue watt meters, ensuring extremely low distortion and long-term reliability.
• Specifications – 450W per channel into 2, 4, or 8 ohms via Autoformer, Quad Balanced solid-state topology, frequency response 10Hz–100kHz, total harmonic distortion 0.005%, dynamic headroom 1.8dB, balanced and unbalanced inputs.
• Dimensions – 445 mm (W) × 240 mm (H) × 533 mm (D), including front panel handles and rear connectors, reflecting the large chassis required for its high-current power supply and heat dissipation system.
• Weight – Approximately 52.3 kg (115 lbs), highlighting the amplifier’s massive transformer, Autoformer output stage, and heavy-duty construction typical of McIntosh reference-level power amplifiers.
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MBL N51 Integrated Amplifier
Specifications: MBL N51 Integrated Amplifier
• Type: Integrated amplifier
• Output Power: 380 W per channel (4 Ω), 200 W per channel (8 Ω)
• Class of Operation: Class A / AB hybrid
• Inputs: 3 × RCA (unbalanced), 2 × XLR (balanced)
• Outputs: 1 × RCA pre-out, 1 × XLR pre-out
• Frequency Response: 0.3 Hz – 330 kHz (-3 dB)
• THD: < 0.01% • Damping Factor: 200
• Input Impedance: 47 kΩ
• Dimensions (W × H × D): 45 × 17 × 40 cm
• Weight: 35 kg
• Made in Germany
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Jadis I-50 Tube Integrated Amplifier
• Product Overview – Jadis I-50 Tube Integrated Amplifier released in 2018, is a pure Class A, vacuum-tube integrated amplifier featuring line-level and optional phono capability, delivering classic French tube musicality with modern reliability.
• Circuit & Build Quality – Handcrafted in France, the amplifier employs point-to-point wiring, oversized transformers, and premium passive components, ensuring low noise, long-term stability, and the unmistakable Jadis tonal richness.
• Sound Performance –Jadis I-50 Tube Integrated Amplifier is known for its lush midrange, fluid dynamics, and expansive soundstage, the Jadis I-50 Tube Integrated Amplifier excels with vocals and acoustic music while maintaining control and drive with efficient loudspeakers.
• Specifications – Delivers approximately 50 W per channel in pure Class A using KT150 output tubes, with 4 and 8 ohm taps, wide bandwidth response, and robust power supply for consistent tube operation.
• Dimensions – Approximate chassis dimensions are 485 mm (W) × 245 mm (H) × 380 mm (D), housed in a polished stainless-steel frame that combines mechanical rigidity with distinctive visual presence.
• Weight – Weighs approximately 35 kg, reflecting massive transformers, heavy-gauge chassis construction, and substantial tube complement essential for Class A thermal and electrical stability.
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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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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 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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