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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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Synergistic Research Active Ground Block SE
• Product Overview – The Synergistic Research Active Ground Block SE, released in 2017, provides an active DC-biased grounding network that dramatically lowers system noise floors, improving clarity, microdetail, and dynamic contrast in high-resolution audio setups.
• Active Grounding Technology – Its patented UEF filtering and active biasing circuitry reduce high-frequency noise and distortive ground interactions, enhancing spatial realism, image separation, and low-level resolution across both analog and digital components.
• System Integration – The Synergistic Research Active Ground Block SE offers multiple grounding outputs to accommodate DACs, preamps, servers, switches, and amplifiers, expanding performance benefits across the entire system with consistent sonic refinement.
• Build & Performance – Heavy shielding, precision internal layout, and upgraded SE-level power supply contribute to significantly reduced EMI/RFI contamination, delivering a cleaner and more holographic soundstage.
• Dimensions – Approx. 254 mm (W) × 76 mm (H) × 203 mm (D), compact enough for tight rack placements while offering robust ground connectivity.
• Weight – Roughly 2.5 kg, with a solid chassis that minimizes vibration and supports stable grounding performance.
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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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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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Adcom GFP-345 Pre-Amp and GFA-535 mk2 Amplifier
• Adcom GFP-345 Pre-Amp and GFA-535 Mk2 Amplifier – A classic solid-state pairing featuring a fully Class AB power stage, offering clean, authoritative drive and exceptional value for enthusiasts seeking transparent, reliable high-fidelity performance.
• Refined Preamp Control – The GFP-345 provides precise volume management, clean signal routing, high-quality phono stage support, and low-noise circuitry, enabling a neutral presentation with impressive musical clarity across varied source components.
• Dynamic Class AB Power – The GFA-535 Mk2 delivers approximately 60W per channel into 8 ohms with robust current delivery, maintaining excellent channel separation, punchy dynamics, and stable operation even with moderately difficult loudspeaker loads.
• Synergistic System Performance – Together, the GFP-345 and GFA-535 Mk2 create a cohesive soundstage with firm bass control, open midrange, and smooth treble, making this combo a proven choice for budget-conscious yet discerning listeners.
• Dimensions – GFP-345: approx. 432 mm (W) × 76 mm (H) × 330 mm (D). GFA-535 Mk2: approx. 432 mm (W) × 140 mm (H) × 330 mm (D). Fits standard racks comfortably.
• Weight – GFP-345 weighs around 5–6 kg, while GFA-535 Mk2 weighs roughly 10–11 kg, with a solid transformer and steel chassis enhancing durability and vibration resistance.
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Goldnote DS10 and PSU10
• Goldnote DS10 and PSU10 – The Goldnote DS10 and PSU10 deliver a high-end DAC/streamer with a dedicated external linear power supply, offering enhanced dynamics, lower noise and superior musical refinement for advanced audiophile systems.
• DAC Architecture & Streaming Platform – The Goldnote DS10 uses a premium AKM converter, advanced clocking and Roon-Ready streaming, providing smooth tonality, precise detail retrieval and stable high-resolution playback across modern digital sources.
• External Power Upgrade Performance – The PSU10 employs a multi-rail linear supply with ultra-low-noise voltage regulation, significantly improving the DS10’s transient behaviour, micro-detail resolution and overall soundstage stability.
• Connectivity & System Flexibility – With USB, coaxial, optical, Ethernet, Bluetooth 5.0 and analogue output options, the Goldnote DS10 and PSU10 integrate seamlessly into hybrid digital systems requiring broad format support and low-jitter signal management.
• Product Dimensions – The Goldnote DS10 measures approx. 200 mm (W) × 80 mm (H) × 260 mm (D), while the PSU10 shares a matching footprint for uniform stacking and optimal power isolation.
• Product Weight – DS10 weighs around 3.5 kg and the PSU10 approx. 4 kg, with both units benefiting from rigid chassis construction that improves mechanical grounding and reduces noise.
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Jadis JPL Tube Preamp
Specifications
• Type: Vacuum Tube Line Preamplifier
• Class: Pure Class-A, point-to-point hand-wired
• Tubes: 2 × ECC82 (12AU7), 2 × ECC83 (12AX7)
• Inputs: 5 line inputs (RCA)
• Outputs: 2 main outputs (RCA)
• Frequency Response: 20Hz – 50kHz
• Output Impedance: 1 kΩ
• Dimensions: 430 × 110 × 270 mm
• Weight: 10.5 kg
• Made in France
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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.