The iBasso DC-Tonfa is a USB DAC/amp built on a discrete, fully balanced 8-channel 24-bit R2R DAC, with up to 800mW + 800mW at 32Ω from its 4.4mm output and support for PCM up to 768kHz and DSD512. It suits phone and laptop listeners who want an R2R dongle that can also drive demanding headphones.
Who the iBasso DC-Tonfa is for
R2R listeners: 312 high-precision, low-drift metal film resistors form a discrete 8-channel R2R network, with a 60-resistor hardware compensation network and FPGA correction for resistor tolerance.
Demanding headphones: Two TI dual op-amps and four BUF634A buffers deliver up to 800mW + 800mW at 32Ω (5.2Vrms on high gain) from the 4.4mm balanced output.
Filter tinkerers: The FPGA offers a NOS mode plus four iBasso digital filters, set from the 0.96-inch OLED screen and multifunction knob.
iPhone, Android and console users: USB-C and Lightning cables come in the box, and iBasso says a UAC 1.0 mode turns it into an external sound card for consoles such as Switch 2 and PS5.
Phone battery life: iBasso rates its draw at under 100mA at 5V in NOS mode at 48kHz, which eases the load on a phone, including an iPhone.
Skip it if: you want app control on an iPhone — iBasso's UAC app is an Android APK (plus a browser console for Windows and macOS), so on iOS you adjust it with the knob and screen.
iBasso DC-Tonfa key specs
DAC: Discrete 24-bit 8-channel R2R, fully balanced (312 metal film resistors)
Digital core: Custom FPGA with NOS mode + 4 digital filters; dual Accusilicon femtosecond oscillators
In the box: Magnetic protective case, USB-C to USB-C cable, USB-C to Lightning cable, USB-C to USB-A adapter
Genuine iBasso stock. Free shipping on every order, 45-day returns.
iBasso DC-Tonfa vs similar options
vs iBasso DC Elite: Uses a ROHM BD34301EKV chip and weighs 60.5g; pick the DC-Tonfa for a discrete 8-channel R2R DAC, 800mW + 800mW at 32Ω and a lighter 45g body.
vs iFi GO bar: Adds XBass+ and XSpace analog processing and full MQA decoding; pick the DC-Tonfa for a discrete R2R DAC, 800mW + 800mW at 32Ω (versus up to 475mW) and PCM up to 768kHz.
Yes. Every unit we sell is genuine and brand-new, shipped in its original packaging, and backed by our 1-year TonePier warranty and 45-day returns.
Where does my order ship from, and how long does it take?
Every order ships from our warehouse in China, with full tracking, and most orders ship within 3 business days. Shipping is free on every order; most US orders arrive within 7–15 business days and most orders to other countries within 7–20 business days — see our shipping policy for details.
What if it isn't for me?
You get 45 days to decide. Keep the packaging, keep it in like-new condition, and send it back for a refund. Ear tips unsealed for hygiene reasons are fine — we expect you to actually listen.
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