{"product_id":"eversolo-dac-r8-r2r-dac-preamplifier-headphone-amplifier","title":"Eversolo DAC-R8 R2R DAC \/ Preamplifier \/ Headphone Amplifier","description":"\u003cp class=\"skylabs-eta\" data-skylabs-eta=\"1\" style=\"font-size: 18px; font-weight: bold; color: #2c3e50; text-align: center;\"\u003ePre-order: expected ship date to be announced\u003c\/p\u003e\u003cdiv style=\"max-width: 800px; margin: 0 auto;\"\u003e\n\u003cp\u003e\u003cem\u003eEversolo's R2R DAC, preamplifier and headphone amplifier: an in-house discrete resistor ladder with NOS, OS and BEST modes, fully balanced from conversion to output, with a 10 MHz OCXO clock and a linear power supply.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003eThe Eversolo DAC-R8 is an R2R ladder DAC, preamplifier and headphone amplifier. Conversion runs through Eversolo's own discrete resistor network instead of an off-the-shelf DAC chip, and the chassis is proportioned to match the Eversolo T8 streaming transport, so the two stack as a pair.\u003c\/p\u003e\n\u003ch4\u003eHow does it convert?\u003c\/h4\u003e\n\u003cp\u003eOrigin R2R, Eversolo's in-house resistor ladder, is FPGA-driven, 5+20-bit and fully differential. Three conversion modes are a touch away on the front screen: NOS (non-oversampling), OS (oversampling) and BEST. The signal stays fully balanced from conversion to the analog outputs.\u003c\/p\u003e\n\u003ch4\u003eHow does it measure?\u003c\/h4\u003e\n\u003cp\u003eFrom the balanced XLR outputs: THD+N of 0.000316% (−110 dB) at 1 kHz, a 130 dB signal-to-noise ratio, 130 dB dynamic range and −142 dB channel separation.\u003c\/p\u003e\n\u003ch4\u003eWhat powers and clocks it?\u003c\/h4\u003e\n\u003cp\u003eA custom O-Core linear power supply, and a 10 MHz OCXO (oven-controlled crystal oscillator) with a PLL for internal timing. A 10\/25 MHz external clock input accepts a master clock such as the Eversolo C10.\u003c\/p\u003e\n\u003ch4\u003eHow is the volume set?\u003c\/h4\u003e\n\u003cp\u003eA fully balanced, stepped R2R volume control attenuates in the analog domain, so low listening levels keep their detail and dynamics.\u003c\/p\u003e\n\u003ch4\u003eWhat can I connect?\u003c\/h4\u003e\n\u003cp\u003eDigital inputs: USB-B and I2S over HDMI (up to DSD512 and PCM 768 kHz \/ 32-bit), an electrically isolated AES\/EBU input, coaxial and optical (up to PCM 192 kHz \/ 32-bit and DSD64 DoP), HDMI ARC from a TV, and Bluetooth 5.4. Analog inputs on XLR and RCA. Outputs: balanced XLR and RCA preamplifier outputs, plus a 6.35 mm headphone output with three gain levels for headphones from 16 to 300 ohms.\u003c\/p\u003e\n\u003ch4\u003eDisplay and build\u003c\/h4\u003e\n\u003cp\u003eA 5.2-inch IPS touchscreen with VU meters, a rotary volume knob, a remote control and the Eversolo app. The chassis is CNC-machined from a single block of aluminum alloy and measures 315 × 230 × 75 mm with feet; it weighs 4 kg.\u003c\/p\u003e\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse;\"\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align:left; padding:8px; border-bottom:1px solid #ddd; width:35%;\"\u003eType\u003c\/th\u003e\n\u003ctd style=\"padding:8px; border-bottom:1px solid #ddd;\"\u003eR2R DAC \/ preamplifier \/ headphone amplifier\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align:left; padding:8px; border-bottom:1px solid #ddd;\"\u003eDAC architecture\u003c\/th\u003e\n\u003ctd style=\"padding:8px; border-bottom:1px solid #ddd;\"\u003eOrigin R2R discrete resistor ladder, FPGA-driven, 5+20-bit, fully differential\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align:left; padding:8px; border-bottom:1px solid #ddd;\"\u003eConversion modes\u003c\/th\u003e\n\u003ctd style=\"padding:8px; border-bottom:1px solid #ddd;\"\u003eNOS \/ OS \/ BEST\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align:left; padding:8px; border-bottom:1px solid #ddd;\"\u003eClock\u003c\/th\u003e\n\u003ctd style=\"padding:8px; border-bottom:1px solid #ddd;\"\u003e10 MHz OCXO with PLL; 10\/25 MHz external clock input (50 Ω)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align:left; padding:8px; border-bottom:1px solid #ddd;\"\u003ePower supply\u003c\/th\u003e\n\u003ctd style=\"padding:8px; border-bottom:1px solid #ddd;\"\u003eCustom O-Core linear; AC 100–240 V, 50\/60 Hz; 32 W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align:left; padding:8px; border-bottom:1px solid #ddd;\"\u003eVolume control\u003c\/th\u003e\n\u003ctd style=\"padding:8px; border-bottom:1px solid #ddd;\"\u003eFully balanced stepped R2R, analog domain\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align:left; padding:8px; border-bottom:1px solid #ddd;\"\u003eUSB-B \/ I2S (HDMI) inputs\u003c\/th\u003e\n\u003ctd style=\"padding:8px; border-bottom:1px solid #ddd;\"\u003eUp to DSD512, PCM 768 kHz \/ 32-bit; I2S supports 8 pin modes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align:left; padding:8px; border-bottom:1px solid #ddd;\"\u003eAES\/EBU, coaxial, optical inputs\u003c\/th\u003e\n\u003ctd style=\"padding:8px; border-bottom:1px solid #ddd;\"\u003eUp to PCM 192 kHz \/ 32-bit, DSD64 DoP; AES\/EBU electrically isolated\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align:left; padding:8px; border-bottom:1px solid #ddd;\"\u003eHDMI ARC input\u003c\/th\u003e\n\u003ctd style=\"padding:8px; border-bottom:1px solid #ddd;\"\u003eUp to PCM 192 kHz \/ 24-bit\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align:left; padding:8px; border-bottom:1px solid #ddd;\"\u003eBluetooth\u003c\/th\u003e\n\u003ctd style=\"padding:8px; border-bottom:1px solid #ddd;\"\u003eBluetooth 5.4, Qualcomm QCC3095\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align:left; padding:8px; border-bottom:1px solid #ddd;\"\u003eAnalog inputs\u003c\/th\u003e\n\u003ctd style=\"padding:8px; border-bottom:1px solid #ddd;\"\u003eXLR (balanced), RCA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align:left; padding:8px; border-bottom:1px solid #ddd;\"\u003eOutputs\u003c\/th\u003e\n\u003ctd style=\"padding:8px; border-bottom:1px solid #ddd;\"\u003eXLR (balanced) and RCA preamplifier; 6.35 mm headphone\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align:left; padding:8px; border-bottom:1px solid #ddd;\"\u003eXLR output\u003c\/th\u003e\n\u003ctd style=\"padding:8px; border-bottom:1px solid #ddd;\"\u003e5 Vrms; THD+N 0.000316% (−110 dB) @ 1 kHz; SNR 130 dB (A-weighted); channel separation −142 dB\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align:left; padding:8px; border-bottom:1px solid #ddd;\"\u003eRCA output\u003c\/th\u003e\n\u003ctd style=\"padding:8px; border-bottom:1px solid #ddd;\"\u003e2.5 Vrms; THD+N 0.000355% (−109 dB) @ 1 kHz; SNR 127 dB (A-weighted)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align:left; padding:8px; border-bottom:1px solid #ddd;\"\u003eHeadphone output\u003c\/th\u003e\n\u003ctd style=\"padding:8px; border-bottom:1px solid #ddd;\"\u003eLow \/ medium \/ high gain, up to 7 Vrms; 16–300 Ω\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align:left; padding:8px; border-bottom:1px solid #ddd;\"\u003eFrequency response\u003c\/th\u003e\n\u003ctd style=\"padding:8px; border-bottom:1px solid #ddd;\"\u003e20 Hz–20 kHz (±0.25 dB), BEST mode\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align:left; padding:8px; border-bottom:1px solid #ddd;\"\u003eOp-amps\u003c\/th\u003e\n\u003ctd style=\"padding:8px; border-bottom:1px solid #ddd;\"\u003eOPA1612\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align:left; padding:8px; border-bottom:1px solid #ddd;\"\u003eDisplay\u003c\/th\u003e\n\u003ctd style=\"padding:8px; border-bottom:1px solid #ddd;\"\u003e5.2-inch IPS touchscreen, VU meters\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align:left; padding:8px; border-bottom:1px solid #ddd;\"\u003eControl\u003c\/th\u003e\n\u003ctd style=\"padding:8px; border-bottom:1px solid #ddd;\"\u003eTouchscreen, rotary knob, remote control, Eversolo app\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align:left; padding:8px; border-bottom:1px solid #ddd;\"\u003eChassis\u003c\/th\u003e\n\u003ctd style=\"padding:8px; border-bottom:1px solid #ddd;\"\u003eCNC-machined aluminum alloy\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align:left; padding:8px; border-bottom:1px solid #ddd;\"\u003eDimensions (W × D × H)\u003c\/th\u003e\n\u003ctd style=\"padding:8px; border-bottom:1px solid #ddd;\"\u003e315 × 230 × 75 mm (65 mm without feet)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align:left; padding:8px; border-bottom:1px solid #ddd;\"\u003eWeight\u003c\/th\u003e\n\u003ctd style=\"padding:8px; border-bottom:1px solid #ddd;\"\u003e4 kg (5.9 kg packed)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align:left; padding:8px; border-bottom:1px solid #ddd;\"\u003eIn the box\u003c\/th\u003e\n\u003ctd style=\"padding:8px; border-bottom:1px solid #ddd;\"\u003eRemote control, power cable, trigger cable, user manual\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\n\u003c\/div\u003e","brand":"Forte","offers":[{"title":"Default Title","offer_id":68049306943773,"sku":"EV-R8","price":1280.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0855\/3670\/2749\/files\/eversolo-dac-r8-hero-preorder-v2.png?v=1794423944","url":"https:\/\/skylabsaudio.com\/products\/eversolo-dac-r8-r2r-dac-preamplifier-headphone-amplifier","provider":"Skylabs ","version":"1.0","type":"link"}