{"product_id":"shanling-eh90-fully-balanced-r2r-dac-headphone-amplifier","title":"SHANLING EH90 Fully Balanced R2R DAC \u0026 Headphone Amplifier","description":"\u003cp\u003e\u003cstrong\u003eA Flagship R2R DAC and Headphone Amplifier\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe Shanling EH90 is a desktop R2R DAC and fully balanced headphone amplifier built around Shanling’s flagship in-house R2R converter. It follows the company’s SCD3.3 SACD player, both in sound quality ambition and in design: the 90s-line chassis is crafted from aviation-grade aluminium with a sandblasted, anodised finish and a high-strength tempered glass front panel. A panoramic 4.8-inch colour screen handles playback information and direct settings access, and the unit measures 230 × 280 × 83.1mm at around 3.7kg. It is available in black and silver, with a remote control supplied.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFlagship Pro R2R DAC Architecture\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eRather than a Delta-Sigma converter, the EH90 uses a 24-bit discrete R2R ladder built from 212 resistors matched to 0.01% tolerance. Shanling combines a 19-bit architecture with a 4-bit compensating code and an assistive push-pull differential circuit. Because R2R conversion performs no digital modulation and no oversampling — the PCM signal is divided directly — the signal path stays shorter and distortion lower. The result, in Shanling’s words, is the analogue character, vocal texture and naturally smooth tonality associated with R2R, combined with high resolution and detail.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFully Discrete Headphone Amplifier with MOSFET Output\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe amplifier section is fully discrete and was developed specifically to match the R2R DAC, balancing transparency with the natural character of R2R sound. JFE2140DSGR JFETs handle the input stage, while IRF530N and IRF9530N MOSFETs form the output stage. That combination provides high current output, remains stable across a wide range of loads, and is described by Shanling as natural sounding. Two gain settings are available to match sensitive in-ears through to demanding full-size headphones.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eUp to 5.2W of Balanced Output Power\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eFrom the balanced outputs the EH90 delivers up to 5200mW + 5200mW @ 32Ω in high gain, and 575mW + 575mW @ 300Ω — enough for the most demanding full-size headphones, and stable whatever the impedance or load. The single-ended 6.35mm output offers 295mW + 295mW @ 32Ω in low gain and 1320mW + 1320mW @ 32Ω in high gain. THD+N is quoted at 0.003% @ 32Ω across the outputs, with signal-to-noise ratio of 117dB single-ended and 120dB balanced, and channel separation of 70dB and 95dB respectively.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHeadphone, Preamp and Line Outputs\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eHeadphones can be connected three ways: 6.35mm single-ended, 4.4mm balanced and 4-pin XLR balanced. For system building, the EH90 also provides RCA single-ended and XLR balanced analogue outputs with line-out and preamp modes, so it can feed active speakers or a power amplifier directly — the RCA output is specified at 2.5V and the XLR output at 5V.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDigital Inputs, HDMI ARC, I2S and Bluetooth\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eConnectivity covers USB, optical, coaxial, AES\/EBU, I2S and HDMI ARC. USB and I2S accept PCM up to 768kHz\/32-bit and DSD512, while optical, coaxial, AES\/EBU and HDMI ARC accept PCM up to 192kHz\/32-bit. The I2S input is FPGA-assisted and supports 10 different cable pinout definitions, which makes the EH90 compatible with a wide range of transports — Shanling singles out pairing it with the CT90 CD transport. The HDMI ARC input lets a TV or projector feed the EH90 with a single HDMI cable, and Bluetooth 5.4 adds receiver mode with LDAC, aptX Lossless, aptX Adaptive, aptX HD, aptX, AAC and SBC.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDual Power Supply and External Clock Support\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003ePower comes from a dual-supply design: a custom 35W linear transformer for the analogue and Hi-Fi sections, plus a dedicated 10W digital power supply, which improves isolation between the operating and audio circuitry for lower noise. Filtering uses sorted capacitors totalling over 12,000µF. The EH90 also carries its own high-precision, stable crystal oscillators, and a WORD\/CLK input accepts an external master clock at 44.1kHz or 10MHz for further gains in timing accuracy.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSpecifications\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eModel:\u003c\/strong\u003e SHANLING EH90\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Type:\u003c\/strong\u003e Fully balanced R2R DAC \u0026amp; headphone amplifier (desktop)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDAC:\u003c\/strong\u003e Shanling Pro R2R, 24-bit discrete R2R module\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eR2R Array:\u003c\/strong\u003e 212 × 0.01% precision resistors; 19-bit architecture + 4-bit compensating code; assistive push-pull differential circuit\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHeadphone Amplifier:\u003c\/strong\u003e Fully discrete MOSFET — JFE2140DSGR JFET input stage, IRF530N + IRF9530N output stage\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGain:\u003c\/strong\u003e Two adjustable gain settings (low \/ high)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDisplay:\u003c\/strong\u003e 4.8-inch colour screen\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHeadphone Outputs:\u003c\/strong\u003e 6.35mm single-ended; 4.4mm \u0026amp; 4-pin XLR balanced\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAnalog Outputs:\u003c\/strong\u003e RCA \u0026amp; XLR (line-out \/ preamp modes)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDigital Inputs:\u003c\/strong\u003e USB, optical, coaxial, AES\/EBU, I2S (FPGA-assisted, 10 pinouts), HDMI ARC\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBluetooth:\u003c\/strong\u003e 5.4 — LDAC \/ aptX Lossless \/ aptX Adaptive \/ aptX HD \/ aptX \/ AAC \/ SBC\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExternal Clock Input:\u003c\/strong\u003e WORD\/CLK BNC, 44.1kHz \/ 10MHz compatible\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSupported Formats (USB):\u003c\/strong\u003e PCM up to 768kHz\/32-bit, DSD512\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSupported Formats (IIS):\u003c\/strong\u003e PCM up to 768kHz\/32-bit, DSD512\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSupported Formats (Optical\/Coaxial\/AES\/HDMI ARC):\u003c\/strong\u003e PCM up to 192kHz\/32-bit\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePower Supply:\u003c\/strong\u003e 35W custom linear transformer + 10W dedicated digital power supply; over 12,000µF filtering\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e6.35mm Output Power (Low Gain):\u003c\/strong\u003e 295mW + 295mW @ 32Ω; 30mW + 30mW @ 300Ω (THD+N \u0026lt;1%)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e6.35mm Output Power (High Gain):\u003c\/strong\u003e 1320mW + 1320mW @ 32Ω; 140mW + 140mW @ 300Ω (THD+N \u0026lt;1%)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e6.35mm Frequency Response:\u003c\/strong\u003e 20Hz–45kHz (–0.2dB, OS)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e6.35mm THD+N:\u003c\/strong\u003e 0.003% @ 32Ω\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e6.35mm Channel Separation:\u003c\/strong\u003e 70dB\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e6.35mm Signal-to-Noise Ratio:\u003c\/strong\u003e 117dB\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e6.35mm Noise:\u003c\/strong\u003e 111dB (2.8µV)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e6.35mm Output Impedance:\u003c\/strong\u003e 0.3Ω\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e4.4mm\/XLR Output Power (Low Gain):\u003c\/strong\u003e 1170mW + 1170mW @ 32Ω; 125mW + 125mW @ 300Ω (THD+N \u0026lt;1%)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e4.4mm\/XLR Output Power (High Gain):\u003c\/strong\u003e 5200mW + 5200mW @ 32Ω; 575mW + 575mW @ 300Ω (THD+N \u0026lt;1%)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e4.4mm\/XLR Frequency Response:\u003c\/strong\u003e 20Hz–45kHz (–0.2dB, OS)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e4.4mm\/XLR THD+N:\u003c\/strong\u003e 0.003% @ 32Ω\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e4.4mm\/XLR Channel Separation:\u003c\/strong\u003e 95dB\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e4.4mm\/XLR Signal-to-Noise Ratio:\u003c\/strong\u003e 120dB\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e4.4mm\/XLR Noise:\u003c\/strong\u003e 109dB (3.6µV)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e4.4mm\/XLR Output Impedance:\u003c\/strong\u003e 0.6Ω\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePreamp RCA Output:\u003c\/strong\u003e Level 2.5V; 20Hz–45kHz (–0.2dB, OS); THD+N 0.003% @ 32Ω; SNR 116dB; output impedance 100Ω\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePreamp XLR Output:\u003c\/strong\u003e Level 5V; 20Hz–45kHz (–0.2dB, OS); THD+N 0.003% @ 32Ω; SNR 118dB; output impedance 200Ω\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDimensions (incl. base):\u003c\/strong\u003e 230 × 280 × 83.1 mm (D × W × H)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 3.7 kg\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePower:\u003c\/strong\u003e 100V or 220V, region locked\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eColours:\u003c\/strong\u003e Black, Silver\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\u003ePower cord\u003c\/li\u003e\n\u003cli\u003eBluetooth antenna\u003c\/li\u003e\n\u003cli\u003eRemote controller\u003c\/li\u003e\n\u003cli\u003eUSB cable\u003c\/li\u003e\n\u003cli\u003eManuals\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0769\/7085\/2544\/files\/shanling-eh90-r2r-dac-headphone-amplifier-hero.jpg?v=1789293010\" alt=\"shanling eh90 r2r dac headphone amplifier hero\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0769\/7085\/2544\/files\/shanling-eh90-feature-overview.jpg?v=1789293010\" alt=\"shanling eh90 feature overview\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0769\/7085\/2544\/files\/shanling-eh90-flagship-pro-r2r-dac.jpg?v=1789293010\" alt=\"shanling eh90 flagship pro r2r dac\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0769\/7085\/2544\/files\/shanling-eh90-fully-discrete-mosfet-headphone-amplifier.jpg?v=1789293010\" alt=\"shanling eh90 fully discrete mosfet headphone amplifier\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0769\/7085\/2544\/files\/shanling-eh90-5200mw-balanced-output-power.jpg?v=1789293010\" alt=\"shanling eh90 5200mw balanced output power\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0769\/7085\/2544\/files\/shanling-eh90-headphone-and-analog-outputs.jpg?v=1789293010\" alt=\"shanling eh90 headphone and analog outputs\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0769\/7085\/2544\/files\/shanling-eh90-35w-transformer-dual-power-supply.jpg?v=1789293008\" alt=\"shanling eh90 35w transformer dual power supply\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0769\/7085\/2544\/files\/shanling-eh90-fpga-assisted-i2s-input.jpg?v=1789293010\" alt=\"shanling eh90 fpga assisted i2s input\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0769\/7085\/2544\/files\/shanling-eh90-bluetooth-5-4-wireless.jpg?v=1789293010\" alt=\"shanling eh90 bluetooth 5 4 wireless\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0769\/7085\/2544\/files\/shanling-eh90-hdmi-arc-input.jpg?v=1789293009\" alt=\"shanling eh90 hdmi arc input\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0769\/7085\/2544\/files\/shanling-eh90-external-clock-input.jpg?v=1789293010\" alt=\"shanling eh90 external clock input\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0769\/7085\/2544\/files\/shanling-eh90-90s-line-design-4-8-inch-screen.jpg?v=1789293009\" alt=\"shanling eh90 90s line design 4 8 inch screen\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0769\/7085\/2544\/files\/shanling-eh90-device-overview-front-rear-panel.jpg?v=1789293009\" alt=\"shanling eh90 device overview front rear panel\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0769\/7085\/2544\/files\/shanling-eh90-technical-specifications.jpg?v=1789293010\" alt=\"shanling eh90 technical specifications\"\u003e\u003c\/p\u003e","brand":"SHANLING","offers":[{"title":"Silver","offer_id":49009635950784,"sku":"10012531","price":9595.67,"currency_code":"HKD","in_stock":true},{"title":"Black","offer_id":49009636409536,"sku":"10016617","price":9595.67,"currency_code":"HKD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0769\/7085\/2544\/files\/shanling-eh90-black-angle-view.jpg?v=1789293003","url":"https:\/\/hifichic.com\/products\/shanling-eh90-fully-balanced-r2r-dac-headphone-amplifier","provider":"HIFICHIC","version":"1.0","type":"link"}