{"product_id":"accuphase-c-3900s-precision-stereo-pre-amplifier","title":"Accuphase C-3900S Precision Stereo Pre-Amplifier","description":"\u003cp\u003eThe Accuphase C-3900S represents the highest expression of Accuphase’s preamplifier engineering—an exquisite fusion of cutting-edge circuit design, meticulous craftsmanship, and absolute musical purity. Building on the celebrated C-3900, the new C-3900S elevates performance even further, introducing enhanced ultra-low-noise technologies, refined mechanical engineering, and newly developed usability features that make premium audio more immersive than ever.\u003c\/p\u003e\u003ch3\u003eFlagship Engineering, Refined to Perfection\u003c\/h3\u003e\u003cp\u003eAt the heart of the C-3900S lies Accuphase’s most advanced implementation of its renowned AAVA technology: Dual Balanced AAVA. By running two fully balanced AAVA modules in parallel, the C-3900S achieves extraordinary linearity, vanishingly low distortion, and a level of quietness never before reached in an Accuphase preamplifier.\u003c\/p\u003e\u003cp\u003eNoise performance is simply unparalleled—15% lower than the already world-leading C-3900, setting a new benchmark in Accuphase’s 53-year history.\u003c\/p\u003e\u003ch3\u003eA Chassis Built for Pure Sound\u003c\/h3\u003e\u003cp\u003eInside the beautifully crafted aluminum enclosure is an obsessively symmetrical, fully modular layout. A massive toroidal transformer, housed in its own aluminum block, anchors the power supply, supported by twelve custom Accuphase 10,000 μF capacitors. Every circuit module is mounted on gold-plated boards designed for maximum stability, heat dissipation, and serviceability.\u003c\/p\u003e\u003ch3\u003eMechanical Excellence You Can Feel\u003c\/h3\u003e\u003cp\u003eAudio enthusiasts will appreciate the new custom-engineered volume sensor—an 8mm, CNC-machined shaft that glides with exceptional smoothness. Although the audio signal never passes through the mechanism, its tactile precision reflects the C-3900S ethos: every detail matters.\u003c\/p\u003e\u003ch3\u003eAdvanced Noise-Cancelling Technologies\u003c\/h3\u003e\u003cp\u003eThe C-3900S integrates several proprietary innovations that push achievable noise levels to the extreme low end:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eHigh-gain input stage for improved noise characteristics from the very first amplification stage.\u003c\/li\u003e\n\u003cli\u003eANCC (Accuphase Noise and Distortion Canceling Circuit) to detect and neutralize unwanted artifacts at the I-V conversion stage.\u003c\/li\u003e\n\u003cli\u003eEight-parallel summing amplifiers that dramatically reduce theoretical noise, delivering pristine output across both line and balanced connections.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eThe result is a breathtaking black background that allows music to emerge with purity, depth, and holographic realism. The input selector is also bespoke, designed for flawless, noise-free switching and outstanding user feel.\u003c\/p\u003e\u003ch3\u003eA More Capable, More Expressive Headphone Experience\u003c\/h3\u003e\u003cp\u003eAccuphase has redesigned the headphone amplifier from the ground up. The new fully discrete, parallel push-pull stage offers selectable gain (Low, Mid, High) and support for headphones from 8Ω upward. A five-step bass compensator enriches low-level listening, while the improved 115-step left\/right balance control enables precise personal tuning.\u003c\/p\u003e\u003ch3\u003eTimeless Design, Future-Ready Performance\u003c\/h3\u003e\u003cp\u003eMaintaining the same elegant dimensions as the C-3900—but now slightly heavier due to its more robust internal structure—the C-3900S is a true reference preamplifier for those seeking the ultimate listening experience.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eFrequency Response:\u003c\/strong\u003e BALANCED\/LINE INPUT, 3 - 200,000Hz +0 -3.0 dB, 20 - 20,000Hz +0 -0.2 dB\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eTotal Harmonic Distortion (for all inputs):\u003c\/strong\u003e 0.005%\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eInput Sensitivity:\u003c\/strong\u003e BALANCED 252mV, 0.5V Output 63mV. LINE 252mV, 0.5V Output 63mV\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eInput Impedance:\u003c\/strong\u003e BALANCED 40 kilohms. LINE 20 kilohms\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eRated Output Voltage, Output Impedance:\u003c\/strong\u003e BALANCED\/LINE OUTPUT 2 V 50 ohms, RECORDER REC (with AD input) 252 mV 200 ohms\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eS\/N Ratio, Input-converted Noise (gain selector: 18 dB):\u003c\/strong\u003e BALANCED 118 dB, S\/N ratio (EIA) 113 dB. LINE 113 dB, S\/N ratio (EIA) 118 dB\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eMaximum Output Level (0.005% THD, 20 - 20,000 Hz):\u003c\/strong\u003e BALANCED\/LINE OUTPUT 7.0 V, RECORDER REC (with AD input) 6.0 V\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eMaximum Input Level:\u003c\/strong\u003e BALANCED\/LINE INPUT 6.0 V\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eMinimum Load Impedance:\u003c\/strong\u003e BALANCED\/LINE OUTPUT 600 ohms, RECORDER REC 10 kilohms\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eGain (gain selector: 18 dB, switchable to 12\/18\/24 dB):\u003c\/strong\u003e BALANCED INPUT → BALANCED OUTPUT 18 dB, BALANCED INPUT → LINE OUTPUT 18 dB, LINE INPUT → BALANCED OUTPUT 18 dB, LINE INPUT → LINE OUTPUT 18 dB\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eLoudness Compensation:\u003c\/strong\u003e 1: +2 dB (100 Hz), 2: +4 dB (100 Hz), 3: +6.5 dB (100 Hz)\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eAttenuator:\u003c\/strong\u003e -20 dB\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHeadphone Jack:\u003c\/strong\u003e Suitable impedance 8 ohms or higher, Output level 2 V (40 ohms)\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003ePower Requirements:\u003c\/strong\u003e 230 V AC, 50 Hz (Voltage as indicated on rear panel)\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003ePower Consumption:\u003c\/strong\u003e 60 Watts\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eMaximum Dimensions:\u003c\/strong\u003e Width 477 mm, Height 156 mm, Depth 412 mm\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eMass:\u003c\/strong\u003e 25.3 kg, 33.0 kg in shipping carton\u003c\/p\u003e","brand":"Accuphase","offers":[{"title":"Default Title","offer_id":42152514158674,"sku":null,"price":55000.0,"currency_code":"NZD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0225\/9777\/files\/Accuphase-C-3900S-Stereo-Pre-amplifier-front2.jpg?v=1764287849","url":"https:\/\/soundline.co.nz\/en-int\/products\/accuphase-c-3900s-precision-stereo-pre-amplifier","provider":"Soundline Audio Online NZ","version":"1.0","type":"link"}