{"product_id":"xduoo-a35-el34-tube-integrated-amplifier","title":"XDUOO A35 EL34 Tube Integrated Amplifier with ES9018K2M DAC","description":"\u003cp\u003e\u003cstrong\u003eXDUOO A35 EL34 Tube Integrated Amplifier\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe XDUOO A35 is a hand-wired, all-tube integrated amplifier that combines classic EL34 push-pull power with a built-in ESS ES9018K2M DAC and Qualcomm Bluetooth 5.1. Delivering 45W per channel, the A35 works as both a stereo speaker amplifier and a modern desktop Hi-Fi centerpiece, pairing vintage tube warmth with convenient digital and wireless sources.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eThree-Stage All-Tube Circuit\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe A35 uses a classic three-stage tube topology: a 12AX7 dual triode handles voltage amplification with excellent linearity, two 12AU7 triodes form a low-noise, low-impedance driver stage, and four precisely matched EL34 tubes in a push-pull configuration deliver 45W per channel of grand dynamics and delicate musical detail. Every tube is strictly selected and precisely matched.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003ePoint-to-Point Hand-Wired Construction\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eCore circuits are built with traditional point-to-point soldering, using direct component connections that eliminate extra lead interference. Short copper wiring keeps the layout neat with natural shielding and low crosstalk, preserving the pure, warm classic tube sound audiophiles seek.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eUltra-Linear Operation Mode\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe amplifier runs in ultra-linear mode for balanced tonal response, wide frequency extension, and strong output control, maintaining a 20Hz–60kHz frequency range. Solid bass, a layered soundstage, and clear detail make it equally at home with orchestral, jazz, vocal, and electronic music.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eESS ES9018K2M DAC\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eA built-in ESS ES9018K2M high-performance DAC chip provides ultra-low distortion and high signal-to-noise performance, extending dynamic range for refined, layered digital playback directly through the amplifier—no external DAC required.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQualcomm Bluetooth 5.1 with aptX HD\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe A35 is equipped with a Qualcomm Bluetooth 5.1 chip supporting SBC, AAC, aptX, and aptX HD codecs, enabling stable, high-fidelity wireless audio from smartphones, tablets, and portable music players.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCustom EI Transformer\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe power supply is built around a custom EI transformer wound with imported low-magnetostriction silicon steel cores and high-purity enameled copper wire, vacuum-impregnated at high temperature. This suppresses coil resonance and vibration, eliminates high-frequency noise, and provides a stable, ultra-low noise foundation.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003ePremium Components \u0026amp; Gold-Plated Connectors\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eMain filter capacitors are Japan-made TK audio-dedicated models tailored for tube amplifiers, delivering smooth, warm tone, full bass, and crisp treble. Gold-plated input and output connectors ensure reliable, anti-oxidation contact for lossless long-term signal transmission.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eRelay Protection \u0026amp; Shock-Resistant Chassis\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eA high-strength metal casing with a dedicated tube shockproof structure blocks vibration and electromagnetic interference. Built-in relay protection introduces a 60-second startup delay so the tubes warm up gradually before playback, and automatically guards against overload and short-circuit conditions to protect connected speakers and internal components. The included infrared remote control allows convenient adjustment from across the room.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSpecifications\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eTube Complement:\u003c\/strong\u003e 12AX7 × 1, 12AU7 × 2, EL34 × 4\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOutput Power:\u003c\/strong\u003e 45W per channel (8Ω load)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFrequency Response:\u003c\/strong\u003e 20Hz – 60kHz (+3dB)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSignal-to-Noise Ratio:\u003c\/strong\u003e 93dB (A-Weighted)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTHD:\u003c\/strong\u003e ≤1%\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eChannel Separation:\u003c\/strong\u003e \u0026gt;63dB\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInput Sensitivity:\u003c\/strong\u003e 300mV\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInput Impedance:\u003c\/strong\u003e 100kΩ\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOutput Impedance:\u003c\/strong\u003e 4Ω \/ 8Ω\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInputs:\u003c\/strong\u003e CD IN, AUX1 IN, AUX2 IN, Bluetooth\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDAC:\u003c\/strong\u003e ESS ES9018K2M\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBluetooth:\u003c\/strong\u003e Qualcomm 5.1 | SBC, AAC, aptX, aptX HD\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePower Supply:\u003c\/strong\u003e AC 110V (100–120V) \/ 220V (220–240V)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePower Consumption:\u003c\/strong\u003e 232W\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDimensions (W × D × H):\u003c\/strong\u003e 38 × 34 × 20 cm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 20 kg\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eWhat's Included\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eXDUOO A35 integrated vacuum tube amplifier\u003c\/li\u003e\n\u003cli\u003ePre-installed vacuum tubes\u003c\/li\u003e\n\u003cli\u003eInfrared remote control\u003c\/li\u003e\n\u003cli\u003ePower cable\u003c\/li\u003e\n\u003cli\u003eUser documentation\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0769\/7085\/2544\/files\/xduoo-a35-tube-integrated-amplifier-hero.jpg?v=1787286049\" alt=\"xduoo a35 tube integrated amplifier hero\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0769\/7085\/2544\/files\/xduoo-a35-el34-three-stage-tube-circuit.jpg?v=1787286048\" alt=\"xduoo a35 el34 three stage tube circuit\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0769\/7085\/2544\/files\/xduoo-a35-point-to-point-hand-wiring.jpg?v=1787286049\" alt=\"xduoo a35 point to point hand wiring\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0769\/7085\/2544\/files\/xduoo-a35-ultra-linear-operation-mode.jpg?v=1787286049\" alt=\"xduoo a35 ultra linear operation mode\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0769\/7085\/2544\/files\/xduoo-a35-ess-es9018k2m-dac.jpg?v=1787286048\" alt=\"xduoo a35 ess es9018k2m dac\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0769\/7085\/2544\/files\/xduoo-a35-qualcomm-bluetooth-51-aptx-hd.jpg?v=1787286049\" alt=\"xduoo a35 qualcomm bluetooth 51 aptx hd\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0769\/7085\/2544\/files\/xduoo-a35-front-panel-controls-inputs.jpg?v=1787286049\" alt=\"xduoo a35 front panel controls inputs\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0769\/7085\/2544\/files\/xduoo-a35-custom-ei-transformer.jpg?v=1787286048\" alt=\"xduoo a35 custom ei transformer\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0769\/7085\/2544\/files\/xduoo-a35-premium-audiophile-components.jpg?v=1787286049\" alt=\"xduoo a35 premium audiophile components\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0769\/7085\/2544\/files\/xduoo-a35-relay-protection-circuit.jpg?v=1787286048\" alt=\"xduoo a35 relay protection circuit\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0769\/7085\/2544\/files\/xduoo-a35-infrared-remote-control.jpg?v=1787286048\" alt=\"xduoo a35 infrared remote control\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0769\/7085\/2544\/files\/xduoo-a35-shock-resistant-metal-chassis.jpg?v=1787286049\" alt=\"xduoo a35 shock resistant metal chassis\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0769\/7085\/2544\/files\/xduoo-a35-technical-specifications.jpg?v=1787286048\" alt=\"xduoo a35 technical specifications\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0769\/7085\/2544\/files\/xduoo-a35-in-the-box-package.jpg?v=1787286048\" alt=\"xduoo a35 in the box package\"\u003e\u003c\/p\u003e","brand":"XDUOO","offers":[{"title":"Default Title","offer_id":48857528926400,"sku":"10018720","price":10388.61,"currency_code":"HKD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0769\/7085\/2544\/files\/xduoo-a35-el34-tube-integrated-amplifier-front-view.jpg?v=1787286051","url":"https:\/\/hifichic.com\/products\/xduoo-a35-el34-tube-integrated-amplifier","provider":"HIFICHIC","version":"1.0","type":"link"}