{"product_id":"smsl-ds300","title":"SMSL DS300 DAC \u0026 Headphone Amp — ES9039Q2M, 4.4mm\/6.35mm, XLR Out","description":"\u003cp class=\"tp-summary\"\u003eThe SMSL DS300 is a compact DAC and headphone amplifier built on ESS's ES9039Q2M chip, with 6.35mm and 4.4mm headphone outputs rated up to 1.5W x 2 into 32Ω (3W x 2 into 16Ω) and XLR and RCA line outputs. It suits a desk setup that drives headphones and also feeds powered speakers or an amp from USB, optical, coaxial or Bluetooth.\u003c\/p\u003e\n\u003ch2\u003eWho the SMSL DS300 is for\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eHard-to-drive headphones:\u003c\/strong\u003e It delivers 1.5W x 2 into 32Ω and 170mW x 2 into 300Ω, with low (-3.3dB), mid (0dB) and high (+9.5dB) gain.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePowered speakers or an amp:\u003c\/strong\u003e The HO\/LO switch sends the signal to the XLR (5Vrms) and RCA (2.5Vrms) line outputs instead of the headphone jacks.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHi-res files and MQA:\u003c\/strong\u003e XMOS XU-316 USB plays PCM up to 32-bit\/768kHz and DSD512 with MQA decoding; it is driverless on macOS, iOS, Android and Linux, while Windows uses SMSL's driver.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePhones and TVs:\u003c\/strong\u003e Bluetooth 5.1 supports LDAC, aptX HD, aptX, AAC and SBC, and the optical and coaxial inputs take a TV or CD transport.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSkip it if:\u003c\/strong\u003e you want a remote control; the DS300 ships without one and is operated from its front panel.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eSMSL DS300 key specs\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDAC \/ op-amps:\u003c\/strong\u003e ESS ES9039Q2M; 4 x OPA1612A\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHeadphone power:\u003c\/strong\u003e 3W x 2 (16Ω), 1.5W x 2 (32Ω), 350mW x 2 (150Ω), 170mW x 2 (300Ω), 85mW x 2 (600Ω)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGain:\u003c\/strong\u003e Low -3.3dB, Mid 0dB, High +9.5dB; headphone output impedance near 0Ω\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOutputs:\u003c\/strong\u003e 6.35mm and 4.4mm headphone; XLR (5Vrms) and RCA (2.5Vrms) line\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInputs:\u003c\/strong\u003e USB, optical, coaxial, Bluetooth 5.1 (LDAC, aptX HD, aptX, AAC, SBC)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFormats:\u003c\/strong\u003e USB PCM 44.1–768kHz up to 32-bit, DSD512; optical\/coaxial PCM 44.1–192kHz, DSD64 (DoP); MQA and MQA-CD\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTHD+N \/ SNR:\u003c\/strong\u003e XLR 0.00007% \/ 129dB; RCA 0.0001% \/ 126dB; headphone 0.00018% \/ 125dB\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePower:\u003c\/strong\u003e Built-in supply, AC 100–240V; under 25W\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSize, weight and finish:\u003c\/strong\u003e 85 × 88.5 × 114.2mm (W × H × D); 639.5g; silver\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIn the box:\u003c\/strong\u003e AC power cable, USB cable, Bluetooth antenna, user manual\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"tp-trust\"\u003eGenuine SMSL stock. Free shipping on every order, 45-day returns.\u003c\/p\u003e","brand":"SMSL","offers":[{"title":"Default Title","offer_id":46347664392327,"sku":"SMSL DS300 silver","price":168.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0756\/5833\/0247\/files\/8169571866.jpg?v=1793195530","url":"https:\/\/tonepier.com\/products\/smsl-ds300","provider":"TonePier","version":"1.0","type":"link"}