{"product_id":"fiio-qx11-compact-headphone-amplifier","title":"FiiO QX11 Compact Headphone Amplifier","description":"\u003cp\u003eThe FiiO QX11 is a compact USB DAC and headphone amplifier that goes well beyond a typical dongle. Two ESS ES9069Q DACs, an all-Texas Instruments amplifier stage and separate digital and analogue boards play PCM up to 768kHz\/32-bit and native DSD512. A second USB-C port unlocks FiiO’s patented Desktop Mode, with up to 800mW per channel from the 4.4mm balanced output, and passes up to 45W of charging through to your phone. A colour screen, a built-in microphone and dedicated gaming sound modes make it as good for calls and games as for music.\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0960\/3199\/8339\/files\/06_multi_angle_product_view_gold.jpg?v=1790785012\" alt=\"FiiO QX11 in gold from every angle\" loading=\"lazy\"\u003e\u003c\/p\u003e\n\u003ch3\u003eDual ES9069Q DACs and a modern USB processor\u003c\/h3\u003e\n\u003cp\u003eTwo flagship ESS ES9069Q DACs, based on ESS’s fourth-generation 32-bit HyperStream architecture, give high performance with low power use. Their lower internal digital noise means a very quiet background, letting fine detail come through. USB is handled by the SPV5068, a RISC-V dual-core audio processor built for low latency, wide compatibility and efficiency: it uses as little as 150mW when decoding, has a 140dB digital dynamic range, and runs the QX11’s 1024-point FFT digital signal processing for EQ at up to 384kHz\/24-bit.\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0960\/3199\/8339\/files\/fiio-qx11-compact-headphone-amplifier-photo-chip.jpg?v=1791315105\" alt=\"The SPV5068 USB audio processor used in the FiiO QX11\" loading=\"lazy\"\u003e\u003c\/p\u003e\n\u003ch3\u003eAn all-TI amplifier with clean, separate power\u003c\/h3\u003e\n\u003cp\u003eBuilding on the KA17’s high-performance design, the QX11 uses two TI OPA1692 op-amps for voltage gain and four OPA1622 op-amps in parallel for the headphone output, for very low noise and distortion and plenty of drive. A four-stage precision power supply filters ripple and noise step by step, with separately partitioned, low-noise LDO supplies for the digital and analogue circuits, the same approach used in desktop headphone amplifiers. The digital and analogue sections sit on separate boards under a shielding cover, so they can’t interfere with each other.\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0960\/3199\/8339\/files\/fiio-qx11-compact-headphone-amplifier-photo-board.jpg?v=1791315109\" alt=\"Inside the FiiO QX11: shielded circuit board and machined volume knob\" loading=\"lazy\"\u003e\u003c\/p\u003e\n\u003ch3\u003eDesktop Mode: small size, big power\u003c\/h3\u003e\n\u003cp\u003eConnect a USB power adapter or a battery such as FiiO’s ESTICK to the orange POWER IN port and switch on Desktop Mode (FiiO’s patent ZL202321946664.8). Output rises from 360mW to 800mW per channel into 32Ω from the 4.4mm output, and from 175mW to 295mW from the 3.5mm, enough for in-ear monitors and the great majority of full-size headphones (FiiO recommends 8–350Ω). The same port can charge your phone, player or tablet at up to 45W over USB PD while you listen, or charge an ESTICK.\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0960\/3199\/8339\/files\/03_usb_c_power_desktop_mode_gold.jpg?v=1790785012\" alt=\"FiiO QX11 USB-C power port and volume wheel\" loading=\"lazy\"\u003e\u003c\/p\u003e\n\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003e4.4mm balanced, 32Ω\u003c\/th\u003e\n\u003ctd\u003e800mW + 800mW (Desktop Mode) · 360mW + 360mW (standard)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003e4.4mm balanced, 16Ω \/ 300Ω\u003c\/th\u003e\n\u003ctd\u003e460mW \/ 95mW (Desktop Mode) · 450mW \/ 45mW (standard)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003e3.5mm, 32Ω\u003c\/th\u003e\n\u003ctd\u003e295mW + 295mW (Desktop Mode) · 175mW + 175mW (standard)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003e3.5mm, 16Ω \/ 300Ω\u003c\/th\u003e\n\u003ctd\u003e420mW \/ 35mW (Desktop Mode) · 320mW \/ 20mW (standard)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\n\u003cp\u003eAll at high gain, THD+N \u0026lt;1%; there’s also a low-gain setting. At its best (4.4mm, Desktop Mode) the QX11 measures a 126dB signal-to-noise ratio, THD+N below 0.00043% and 114dB crosstalk.\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0960\/3199\/8339\/files\/04_3_5mm_4_4mm_headphone_outputs_gold_281_29.jpg?v=1790785013\" alt=\"FiiO QX11 3.5mm and 4.4mm headphone outputs\" loading=\"lazy\"\u003e\u003c\/p\u003e\n\u003ch3\u003eHi-Fi and gaming, with a microphone\u003c\/h3\u003e\n\u003cp\u003eSwitch between Hi-Fi mode and Gaming mode. Gaming mode adds four tuned sound effects (FPS, ACT, MOBA and music games) that bring out cues such as footsteps. The built-in microphone, CTIA in-line headset support on the 3.5mm output and AI environmental noise cancellation (ENC) keep your voice clear on calls and team chat. With headphones on the 4.4mm output, the built-in mic can still be used, and Gaming mode adds desktop sound pickup.\u003c\/p\u003e\n\u003ch3\u003eScreen, knob and shortcut button\u003c\/h3\u003e\n\u003cp\u003eThe 1.14-inch colour screen, large for this class, shows the format and sample rate, volume, gain, filter, EQ and Desktop Mode at a glance, in landscape or portrait themes. The machined volume knob has double-sided 3D engraving and a press function, and FiiO rates it for more than 100,000 presses and 100,000 rotations. A new shortcut button can be set for single, double and long presses: EQ up or down, mode or theme switching, screen rotation or track skipping (by default: theme, mode and next track).\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0960\/3199\/8339\/files\/fiio-qx11-compact-headphone-amplifier-photo-hand.jpg?v=1791315113\" alt=\"FiiO QX11 held in the hand, with its screen showing sample rate and mode\" loading=\"lazy\"\u003e\u003c\/p\u003e\n\u003ch3\u003eTune it your way\u003c\/h3\u003e\n\u003cp\u003eThe FiiO Control app offers 10 preset sound profiles and a 10-band PEQ at up to PCM 384kHz\/24-bit, and AUTO EQ (in the app and on FiiO’s web platform) applies a profile matched to your headphones automatically. Firmware updates arrive over USB.\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0960\/3199\/8339\/files\/11_sound_visual_dark_green.jpg?v=1790785013\" alt=\"FiiO QX11 in dark green showing its screen\" loading=\"lazy\"\u003e\u003c\/p\u003e\n\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eDACs\u003c\/th\u003e\n\u003ctd\u003e2 × ESS ES9069Q · USB: SPV5068\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eAmplifier\u003c\/th\u003e\n\u003ctd\u003e2 × TI OPA1692 + 4 × TI OPA1622\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eFormats\u003c\/th\u003e\n\u003ctd\u003eUSB: PCM 768kHz\/32-bit, DSD512 native · coaxial out: 384kHz\/24-bit · driver-free mode\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eOutputs\u003c\/th\u003e\n\u003ctd\u003e3.5mm (with in-line mic, shared coaxial) · 4.4mm balanced\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003ePerformance\u003c\/th\u003e\n\u003ctd\u003eSNR up to 126dB · THD+N \u0026lt;0.00043% · 20Hz–85kHz · output impedance \u0026lt;1Ω \/ \u0026lt;1.5Ω\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003ePorts\u003c\/th\u003e\n\u003ctd\u003eUSB-C data · USB-C POWER IN (DC 5V ≥2A; 45W PD pass-through)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eControls\u003c\/th\u003e\n\u003ctd\u003eVolume knob with press · custom shortcut button · Desktop Mode switch · high\/low gain\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSize and weight\u003c\/th\u003e\n\u003ctd\u003e64 × 28.8 × 13mm · about 36g\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0960\/3199\/8339\/files\/10_lifestyle_dark_green_rock.jpg?v=1790785012\" alt=\"FiiO QX11 in dark green\" loading=\"lazy\"\u003e\u003c\/p\u003e\n\u003ch3\u003eGood to know\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eDesktop Mode needs power on the second USB-C port: a USB adapter, a power bank or FiiO’s \u003ca href=\"\/products\/fiio-estick-backup-battery-for-portable-dac-amp\"\u003eESTICK\u003c\/a\u003e battery.\u003c\/li\u003e\n\u003cli\u003eThe coaxial (S\/PDIF) digital output shares the 3.5mm socket.\u003c\/li\u003e\n\u003cli\u003eIn Desktop Mode at high gain the QX11 gets warm: FiiO measured surface temperatures of about 40–44°C in a 30°C room.\u003c\/li\u003e\n\u003cli\u003eIn the box: QX11, protective leather case, short USB-C to USB-C cable, USB dust plug, quick start guide and warranty card.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"FiiO","offers":[{"title":"BLACK","offer_id":62725094474115,"sku":"FIIOQX11-BLACK","price":149.99,"currency_code":"GBP","in_stock":true},{"title":"GREEN","offer_id":62725094506883,"sku":"FIIOQX11-GREEN","price":149.99,"currency_code":"GBP","in_stock":true},{"title":"TITANIUM GOLD","offer_id":62725094539651,"sku":"FIIOQX11-T","price":149.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0960\/3199\/8339\/files\/FIIOQX11_7a0b0639-262a-4ae8-8861-9b3ccb8e3644.png?v=1790785509","url":"https:\/\/www.advancedmp3players.co.uk\/products\/fiio-qx11-compact-headphone-amplifier","provider":"amp3","version":"1.0","type":"link"}