{"product_id":"ibasso-dc-tonfa-portable-r2r-dac-amp-800mw-balanced-headphone-amp","title":"iBasso DC-Tonfa Portable R2R DAC \u0026 Amp | 800mW Balanced Headphone Amp","description":"\u003c!-- START: Product Description Container --\u003e\n\u003cdiv class=\"product-description-container\" itemscope itemtype=\"https:\/\/schema.org\/Product\"\u003e\n  \u003cmeta itemprop=\"name\" content=\"iBasso DC-Tonfa Portable Discrete R2R DAC \u0026amp; Headphone Amplifier\"\u003e\n  \u003cmeta itemprop=\"brand\" content=\"iBasso Audio\"\u003e\n\n  \u003c!-- Overview \/ Intro Hook --\u003e\n  \u003csection class=\"overview-section\"\u003e\n    \u003ch2\u003eDesktop-Grade R2R Performance in the Palm of Your Hand\u003c\/h2\u003e\n    \u003cp\u003e\n      Co-developed with Japan’s premier Hi-Fi specialist \u003cstrong\u003ee☆Earphone\u003c\/strong\u003e, the \u003cstrong\u003eiBasso DC-Tonfa\u003c\/strong\u003e is a breakthrough portable USB DAC and headphone amplifier (dongle DAC). Packing a true 24-bit discrete 8-channel fully balanced R2R ladder network, it delivers the rich, natural timbre of desktop-tier R2R audio with unmatched detail, dynamics, and ultra-low noise—wherever you go.\n    \u003c\/p\u003e\n  \u003c\/section\u003e\n\n  \u003chr\u003e\n\n  \u003c!-- Key Features \u0026 Highlights --\u003e\n  \u003csection class=\"features-section\"\u003e\n    \u003ch2\u003eWhy Choose the iBasso DC-Tonfa Portable DAC\/Amp?\u003c\/h2\u003e\n\n    \u003ch3\u003e8-Channel True Balanced Discrete R2R Architecture\u003c\/h3\u003e\n    \u003cp\u003e\n      The DC-Tonfa shrinks desktop-class audio circuitry into a compact dongle. Featuring a 24-bit 8-way fully differential R2R DAC architecture, it effectively minimizes zero-crossing errors and low-level nonlinearity. Experience lush R2R musicality blended with extraordinary resolution and natural warmth.\n    \u003c\/p\u003e\n\n    \u003ch3\u003e312 High-Precision Viking Metal Film Resistors\u003c\/h3\u003e\n    \u003cp\u003e\n      Equipped with 312 ultra-low temperature drift Viking metal film resistors, the DC-Tonfa’s ladder network far outclasses traditional portable R2R dongles. A hardware compensation network of 60 precision resistors works seamlessly with custom FPGA algorithms to strictly control resistance tolerances and thermal drift for pure, uncolored sound reproduction.\n    \u003c\/p\u003e\n\n    \u003ch3\u003eSelf-Developed FPGA + Dual Accusilicon Femtosecond Clocks\u003c\/h3\u003e\n    \u003cp\u003e\n      Backed by 20 years of portable Hi-Fi innovation, iBasso’s proprietary FPGA algorithms dynamically correct individual resistor tolerances on the fly. Paired with dual Accusilicon femtosecond crystal oscillators, jitter is practically eliminated, resulting in exceptional clarity, precise timing, and realistic soundstage depth.\n    \u003c\/p\u003e\n\n    \u003ch3\u003eNOS Mode + 4 Custom Digital Filters\u003c\/h3\u003e\n    \u003cp\u003e\n      Break free from conventional limits. In addition to pure \u003cstrong\u003eNOS (Non-OverSampling) mode\u003c\/strong\u003e, the DC-Tonfa features four proprietary self-developed digital filters inside the FPGA, allowing audiophiles to tailor their listening experience from warm and smooth to fast and detailed.\n    \u003c\/p\u003e\n\n    \u003ch3\u003eMonster Power Output: 800mW + 800mW @ 32Ω\u003c\/h3\u003e\n    \u003cp\u003e\n      The analog amplification stage features an aggressive OP+BUF architecture—utilizing 2 TI high-performance dual op-amps and 4 BUF634A buffers. Delivering up to \u003cstrong\u003e800mW + 800mW @ 32Ω\u003c\/strong\u003e through its 4.4mm balanced output, the DC-Tonfa easily drives demanding IEMs and full-sized audiophile headphones.\n    \u003c\/p\u003e\n\n    \u003ch3\u003eLT3042 Ultra-Low-Noise LDO Reference Power\u003c\/h3\u003e\n    \u003cp\u003e\n      Powered by Linear Technology’s flagship LT3042 ultra-low noise LDO regulator, the DAC circuit boasts a noise floor as low as 0.8μV and a 100dB PSRR. It delivers power cleaner than most battery-operated portable devices, providing a pristine, jet-black background for your music.\n    \u003c\/p\u003e\n\n    \u003ch3\u003eLow Power Consumption \u0026amp; High Efficiency\u003c\/h3\u003e\n    \u003cp\u003e\n      Despite its massive output power, the DC-Tonfa stays incredibly power-efficient. In NOS mode, current draw drops below 100mA at 5V (48kHz sample rate), preserving your smartphone's battery life—even when paired with power-restricted iPhones.\n    \u003c\/p\u003e\n\n    \u003ch3\u003eOLED Display \u0026amp; Hardware Controls\u003c\/h3\u003e\n    \u003cp\u003e\n      Features a sharp 0.96-inch OLED screen paired with a multi-function rotary encoder. Adjust volume, switch gain stages, and select digital filters directly on the device with intuitive control.\n    \u003c\/p\u003e\n\n    \u003ch3\u003eMulti-Platform Compatibility: UAC2.0 \/ UAC1.0 \u0026amp; SPDIF Out\u003c\/h3\u003e\n    \u003cul\u003e\n      \u003cli\u003e\n\u003cstrong\u003eUAC 2.0 Mode:\u003c\/strong\u003e Plug-and-play high-resolution audio for iOS, Android, Windows, macOS, and Linux. Supports up to PCM 768kHz and Native DSD512.\u003c\/li\u003e\n      \u003cli\u003e\n\u003cstrong\u003eUAC 1.0 Mode:\u003c\/strong\u003e Instant compatibility with gaming consoles like the Nintendo Switch 2, PS5, and PC for low-latency, immersive gaming audio.\u003c\/li\u003e\n      \u003cli\u003e\n\u003cstrong\u003eSPDIF Output:\u003c\/strong\u003e The 3.5mm port supports digital optical SPDIF output up to PCM 768kHz to turn your phone into a high-end digital transport.\u003c\/li\u003e\n    \u003c\/ul\u003e\n  \u003c\/section\u003e\n\n  \u003chr\u003e\n\n  \u003c!-- Technical Specifications Table --\u003e\n  \u003csection class=\"specs-section\"\u003e\n    \u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n    \u003ctable style=\"width: 100%; border-collapse: collapse;\"\u003e\n      \u003ctbody\u003e\n        \u003ctr\u003e\n          \u003ctd\u003e\u003cstrong\u003eDAC Architecture\u003c\/strong\u003e\u003c\/td\u003e\n          \u003ctd\u003e24-bit Discrete 8-Channel R2R Ladder Network\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd\u003e\u003cstrong\u003eResistors\u003c\/strong\u003e\u003c\/td\u003e\n          \u003ctd\u003e312x Viking Thin-Film Low Temp-Drift Resistors\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd\u003e\u003cstrong\u003eMaster Clock\u003c\/strong\u003e\u003c\/td\u003e\n          \u003ctd\u003e2x Accusilicon Femtosecond Oscillators\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd\u003e\u003cstrong\u003eAmplifier Circuit\u003c\/strong\u003e\u003c\/td\u003e\n          \u003ctd\u003e2x TI Dual Op-Amps + 4x BUF634A Buffers\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd\u003e\u003cstrong\u003eOutput Power (Balanced 4.4mm)\u003c\/strong\u003e\u003c\/td\u003e\n          \u003ctd\u003e800mW + 800mW @ 32Ω\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd\u003e\u003cstrong\u003eOutput Level\u003c\/strong\u003e\u003c\/td\u003e\n          \u003ctd\u003e5.2Vrms (High Gain) \/ 2.6Vrms (Low Gain)\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd\u003e\u003cstrong\u003eOutputs\u003c\/strong\u003e\u003c\/td\u003e\n          \u003ctd\u003e4.4mm Balanced, 3.5mm Single-Ended (SPDIF Coax\/Optical Out capable)\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd\u003e\u003cstrong\u003eTHD+N\u003c\/strong\u003e\u003c\/td\u003e\n          \u003ctd\u003e0.004%\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd\u003e\u003cstrong\u003eSNR \/ Dynamic Range\u003c\/strong\u003e\u003c\/td\u003e\n          \u003ctd\u003e122dB \/ 123dB\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd\u003e\u003cstrong\u003eChannel Separation\u003c\/strong\u003e\u003c\/td\u003e\n          \u003ctd\u003e124dB\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd\u003e\u003cstrong\u003eOutput Impedance\u003c\/strong\u003e\u003c\/td\u003e\n          \u003ctd\u003e0.5Ω\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd\u003e\u003cstrong\u003eAudio Formats\u003c\/strong\u003e\u003c\/td\u003e\n          \u003ctd\u003ePCM up to 768kHz \/ Native DSD512\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd\u003e\u003cstrong\u003ePower Regulation\u003c\/strong\u003e\u003c\/td\u003e\n          \u003ctd\u003eLinear Technology LT3042 LDO (0.8µV Noise, 100dB PSRR)\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd\u003e\u003cstrong\u003eDimensions \u0026amp; Weight\u003c\/strong\u003e\u003c\/td\u003e\n          \u003ctd\u003e61 × 34.6 × 15 mm | 45 grams\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd\u003e\u003cstrong\u003eBuild Material\u003c\/strong\u003e\u003c\/td\u003e\n          \u003ctd\u003eCNC Aluminum Alloy + Tempered Glass (Front \u0026amp; Back)\u003c\/td\u003e\n        \u003c\/tr\u003e\n      \u003c\/tbody\u003e\n    \u003c\/table\u003e\n  \u003c\/section\u003e\n\n  \u003chr\u003e\n\n  \u003c!-- What's in the Box --\u003e\n  \u003csection class=\"package-section\"\u003e\n    \u003ch2\u003eWhat’s in the Box?\u003c\/h2\u003e\n    \u003cul\u003e\n      \u003cli\u003e1x iBasso DC-Tonfa DAC\/Amp Unit\u003c\/li\u003e\n      \u003cli\u003e1x USB Type-C to Type-C Cable\u003c\/li\u003e\n      \u003cli\u003e1x USB Type-C to Lightning Cable\u003c\/li\u003e\n      \u003cli\u003e1x USB-C to USB-A Adapter\u003c\/li\u003e\n      \u003cli\u003e1x MagSafe-Compatible Protective Case\u003c\/li\u003e\n      \u003cli\u003e1x User Manual \u0026amp; Warranty Card\u003c\/li\u003e\n    \u003c\/ul\u003e\n  \u003c\/section\u003e\n\u003c\/div\u003e\n\u003c!-- END: Product Description Container --\u003e","brand":"iBasso","offers":[{"title":"Blue","offer_id":53547638849830,"sku":null,"price":353.95,"currency_code":"EUR","in_stock":true},{"title":"Red","offer_id":53547638882598,"sku":null,"price":353.95,"currency_code":"EUR","in_stock":true},{"title":"Black","offer_id":53547638915366,"sku":null,"price":353.95,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0289\/2641\/0840\/files\/800x_d55fb6d1-1270-43ed-9812-4709d1f6450d.webp?v=1785509416","url":"https:\/\/www.accessoryjack.com\/en-nl\/products\/ibasso-dc-tonfa-portable-r2r-dac-amp-800mw-balanced-headphone-amp","provider":"AccessoryJack","version":"1.0","type":"link"}