iBasso DC-Tonfa R2R Type-C USB to 3.5/4.4mm Balanced DAC & Headphone Amplifier Adapter - Blue
S$459.00
Colour: Blue
Why You Should Get It
The iBasso DC-Tonfa is a high-power portable USB-C dongle DAC and headphone amplifier featuring an 8-channel discrete R2R ladder architecture, a 4.4mm balanced output, and a 3.5mm single-ended output
Warranty
1 year warranty (local)
In The Box
- iBasso DC-Tonfa
- Protective Case
- USB-C to USB-C cable
- USB-C to USB-A adapter
- USB-C to Lightning Cable
- User Manual
The iBasso DC-Tonfa is a flagship portable decoding headphone amplifier co-developed by audio giant iBasso Audio and renowned Japanese headphone retailer e☆イヤホン. Within a palm-sized form factor, the DC-Tonfa innovatively packs a 24-bit, 8-channel fully balanced differential R2R trapezoidal network composed of discrete components, effectively eliminating zero crossover distortion and showcasing exceptional linearity in minute signals. Compared to the current flagship chip DC-Elite's modern, neutral reference-grade style, the DC-Tonfa focuses more on refining a warm, analog sound, characterized by its rich, smooth, and highly musically engaging quality. Even more impressively, it can unleash a balanced output power of up to 800mW at a impedance of 32Ω, outperforming other pocket decoders in its class. The device also features a 0.96-inch OLED screen, a multi-functional volume knob, and comes with a dedicated protective case that supports MagSafe, perfectly solving the problem of the small dongle dangling. It is a top-of-the-line portable music device that integrates ultimate audiophile architecture, powerful output, and master-level tuning from Japanese masters.
8-channel R2R, true balanced fully differential architecture, desktop-grade audio architecture in a compact chassis. The DC-Tonfa employs a 24-bit discrete component 8-channel fully balanced pure R2R DAC architecture. It condenses a desktop-grade 8-channel R2R decoding solution into a small dongle. The 8-channel R2R, true balanced, fully differential architecture effectively improves zero-point switching error and low-level linearity, retaining the essence of R2R while offering superior detail compared to traditional R2R. Balancing density, dynamics, and natural sound, it allows even a small dongle to experience the true charm of R2R.
With 312 low-temperature drift, high-precision metal film resistors—several times more than traditional R2R resistors—this more powerful architecture delivers superior sound reproduction. The DC-Tonfa incorporates a total of 312 Viking low-temperature drift, high-precision metal film resistors to form an R2R resistor network. This total number of resistors far exceeds that of traditional single-ended R2R resistors. A hardware resistor compensation network, constructed with 60 high-precision resistors, works in conjunction with FPGA software algorithms to rigorously control resistance errors and temperature drift, significantly improving linearity and consistency, laying the foundation for pure and realistic sound performance.
A digital core built for superior sound quality: FPGA + dual Accusilicon femtosecond crystal oscillators. Aibaso has been deeply involved in the portable HiFi field for 20 years, accumulating profound self-developed audio algorithms. The DC-Tonfa uses a self-developed FPGA algorithm to instantly compensate for individual resistor errors, further improving the equivalent accuracy of R2R decoding. Combined with dual Accusilicon femtosecond crystal oscillators, it creates a precise and unified clock source. This effectively reduces jitter, resulting in a purer, more natural sound with richer and more realistic details.
NOS mode + four self-developed digital filters unleash the more diverse sonic potential of the R2R architecture. For a long time, OS and NOS have been almost the only options for R2R devices. DC-Tonfa, relying on advanced self-developed FPGA algorithms, breaks through the limitations of traditional frameworks and, in addition to NOS, has developed four self-developed digital filters, bringing richer sonic expression capabilities to R2R. While retaining the unique charm of R2R, it gives users a greater degree of freedom in sound exploration.
800mW + 800mW@32Ω: Two high-performance TI dual op-amps + four BUF634A chips deliver powerful output in a mini desktop PC at your fingertips.
The DC-Tonfa not only excels in R2R decoding but also delivers outstanding analog amplification. Employing an OP+BUF architecture, the entire unit utilizes two high-performance TI dual op-amps and four BUF634A chips, constructing an audio amplification circuit far exceeding the specifications of small-form-factor headphone amplifiers. The DC-Tonfa boasts a powerful 800mW + 800mW@32Ω output, providing ample driving force and robust dynamic performance, easily handling a wide range of headphone types.
Linear Technology LT3042 Ultra-Low Noise LDO: Reference Power with Lower Noise Than Battery Noise
DC-Tonfa has developed a dedicated regulated power supply solution around the Linear Technology LT3042 ultra-low noise LDO in the core of its DAC. It boasts output noise as low as 0.8μV and 100dB power ripple rejection, outperforming even the battery-powered solutions of most portable devices. This provides a clean and stable power environment for the 8-channel R2R decoding, fully unleashing the sound's potential.
High thrust can also reduce power consumption, eliminating battery anxiety for mobile phones.
Thanks to its efficient circuit design, the DC-Tonfa boasts top-tier power output for its small form factor, yet its actual power consumption is exceptionally well-controlled, achieving a balance between high power and low power consumption. In NOS mode, power consumption is below 100mA/5V (48K standard sampling rate), significantly reducing the burden on your phone's power supply. Even when paired with an iPhone, which has limited power capabilities, you can enjoy listening for extended periods.
A 0.96” OLED screen and a multi-functional knob offer convenient operation, all in one device.
The DC-Tonfa features a 0.96-inch OLED display and a custom encoder, allowing for full-function settings via a multi-function knob on the device. Volume adjustment, function settings, and filter switching are all easily accessible, providing a more intuitive and efficient user experience.
Android APK + PC Control Panel
With rich tuning features, it unlocks more sonic possibilities. It handles all scenarios with ease, from music and games to movies. Android phones support the accompanying APK "iBasso UAC," which supports professional adjustments such as digital filtering, multi-level gain, and channel balance. The PC control panel requires no installation; simply open it in your browser to access full-featured settings for the speaker.
* Supports Windows and macOS systems.
This expands and offers more ways to play; it's more than just a small tail. The DC-Tonfa supports seamless switching between UAC2.0 and UAC1.0 protocols, ensuring broad compatibility with multiple device platforms. The 3.5mm interface also supports SPDIF output.
UAC2.0 mode: can connect to iOS, Android and other mobile phone and tablet devices, and also supports Windows, macOS and Linux computer devices.
UAC 1.0 Mode: Instantly transforms into an external sound card for game consoles like the Switch 2/PS5. Game soundtracks have never sounded so clear and beautiful, immersing you in the joy of gaming.
SPDIF mode: Enables PCM 768kHz digital signal transmission. Through built-in settings or mobile phone UAC software switching, it functions as a professional digital turntable when connected to a mobile phone.
e☆イヤホン× iBasso Audio: A deep fusion of master-level tuning and engineering technology in joint development
e☆イヤホン is a leading Japanese HiFi chain store, deeply rooted in its users and possessing a profound understanding of audiophiles' true sound needs . iBasso collaborated with e☆イヤホン on the DC-Tonfa project, working extensively on everything from sound signature to detailed tuning. Through long-term development and validation, they aimed to present HiFi equipment that better reflects the essence of music and delivers a more immersive and impactful experience. This collaboration aims to convey the perspective of a Japanese professional store through the medium of sound.
| Product Availability | Available (current model) |
| Product Type | DAC (Digital-Analog Converter), Amplifier (Headphone), Portable Amplifier & DAC |
| Style/Type | Portable |
| Features | Dual Headphone Output, High-Res Audio Certified, DSD, MQA (Master Quality Authenticated) |
| Connectivity | Fully Wired |
| DAC | 24-bit Discrete R2R (8-channel) |
| Bluetooth Version | - N.A - |
| Bluetooth Codecs | - N.A. - |
| Sampling / Bitrate | Up to PCM 768 kHz, DSD512 |
| Frequency Response (Hz) | 10 Hz – 40 kHz (-0.8 dB) |
| Signal-to-Noise Ratio (SNR) | 122 dB (AES17-20K A-weighted) |
| Input Connectivity Options | USB Type-C (USB-C) [Data/Audio Signal] |
| Output Connectivity Options | 3.5mm Stereo, 4.4mm (5-Pole) [Balanced] |
| Product Dimensions | 61 × 34.6 × 15 mm (2.4 × 1.36 × 0.59 in) |
| Product Weight (g) | 45g |
| Additional Tech Specs | Output Impedance (3.5mm): 0.2 Ω |
| Colour | Blue |
| Package Contents |
|
| Warranty | 1 year warranty (local) |
If you're based in Singapore,
- spend $300 or more for free doorstep delivery1.
($250 for Silver/Gold/Platinum VIP members) - add a few more bucks, for delivery during the night/weekend, or quicker prioritised delivery options2.
- self-collection is possible at our Showroom, based in Ubi (nearest to MacPherson MRT). Find out where, and how to get to us here.
- and yes, you may arrange your own 3rd party logistics to pickup your purchases on your behalf.
GrabExpress, Lalamove, GoGoX, RydeSEND services are welcome.
View additional Terms & Conditions associated to local doorstep delivery service.
Friends from Overseas,
- we do ship internationally.
- shipping fees are calculated according to total gross actual or volumetric weight of all item(s) in cart, whichever higher.
- shipping fees will vary depending on international carrier(s)3, and will be displayed during checkout.
- do be aware of additional import tax/VAT that may apply.
Important Notice for Customers in the USA
Due to recent changes in U.S. trade regulations, additional tariffs are being imposed on products manufactured in China and imported into the United States. As many of our audio products are made in China, orders shipped to U.S. addresses may be subject to an added tariff charge at checkout, reflected as a "U.S. Import Tariff Surcharge". Please note that this surcharge amount is determined by U.S. import policies and may vary significantly depending on product categories and any future policy adjustments. These charges are necessary to ensure compliance with U.S. customs requirements and to allow us to continue serving our U.S. customers reliably. We strongly encourage you to review the total cost at checkout before placing your order.
Due to recent changes in U.S. trade regulations, additional tariffs are being imposed on products manufactured in China and imported into the United States. As many of our audio products are made in China, orders shipped to U.S. addresses may be subject to an added tariff charge at checkout, reflected as a "U.S. Import Tariff Surcharge". Please note that this surcharge amount is determined by U.S. import policies and may vary significantly depending on product categories and any future policy adjustments. These charges are necessary to ensure compliance with U.S. customs requirements and to allow us to continue serving our U.S. customers reliably. We strongly encourage you to review the total cost at checkout before placing your order.
Important Notice due to ongoing tensions in the Middle East
This surcharge is temporary but necessary during this period of significantly increased operational pressure as a result of the ongoing geo‑political situation in the Middle East.
Orders shipped to Gulf Cooperation Council (GCC), Africa, US and EU regions may be subject to an added surcharge at checkout, reflected as a "Temporary Emergency Situational Surcharge". Please note that this surcharge amount is determined by our freight partners, and may subject to adjustments according to situational updates. We strongly encourage you to review the total cost at checkout before placing your order.
This surcharge is temporary but necessary during this period of significantly increased operational pressure as a result of the ongoing geo‑political situation in the Middle East.
Orders shipped to Gulf Cooperation Council (GCC), Africa, US and EU regions may be subject to an added surcharge at checkout, reflected as a "Temporary Emergency Situational Surcharge". Please note that this surcharge amount is determined by our freight partners, and may subject to adjustments according to situational updates. We strongly encourage you to review the total cost at checkout before placing your order.
View additional Terms & Conditions associated to international door to door shipping service.
1 Terms and condition do apply for free delivery. For more information, click here to view.
2 View our updated list of local delivery options.
3 View our updated list of international carriers.
No Reviews Available for this Product Yet. Leave Your Review
The iBasso DC-Tonfa is a flagship portable decoding headphone amplifier co-developed by audio giant iBasso Audio and renowned Japanese headphone retailer e☆イヤホン. Within a palm-sized form factor, the DC-Tonfa innovatively packs a 24-bit, 8-channel fully balanced differential R2R trapezoidal network composed of discrete components, effectively eliminating zero crossover distortion and showcasing exceptional linearity in minute signals. Compared to the current flagship chip DC-Elite's modern, neutral reference-grade style, the DC-Tonfa focuses more on refining a warm, analog sound, characterized by its rich, smooth, and highly musically engaging quality. Even more impressively, it can unleash a balanced output power of up to 800mW at a impedance of 32Ω, outperforming other pocket decoders in its class. The device also features a 0.96-inch OLED screen, a multi-functional volume knob, and comes with a dedicated protective case that supports MagSafe, perfectly solving the problem of the small dongle dangling. It is a top-of-the-line portable music device that integrates ultimate audiophile architecture, powerful output, and master-level tuning from Japanese masters.
8-channel R2R, true balanced fully differential architecture, desktop-grade audio architecture in a compact chassis. The DC-Tonfa employs a 24-bit discrete component 8-channel fully balanced pure R2R DAC architecture. It condenses a desktop-grade 8-channel R2R decoding solution into a small dongle. The 8-channel R2R, true balanced, fully differential architecture effectively improves zero-point switching error and low-level linearity, retaining the essence of R2R while offering superior detail compared to traditional R2R. Balancing density, dynamics, and natural sound, it allows even a small dongle to experience the true charm of R2R.
With 312 low-temperature drift, high-precision metal film resistors—several times more than traditional R2R resistors—this more powerful architecture delivers superior sound reproduction. The DC-Tonfa incorporates a total of 312 Viking low-temperature drift, high-precision metal film resistors to form an R2R resistor network. This total number of resistors far exceeds that of traditional single-ended R2R resistors. A hardware resistor compensation network, constructed with 60 high-precision resistors, works in conjunction with FPGA software algorithms to rigorously control resistance errors and temperature drift, significantly improving linearity and consistency, laying the foundation for pure and realistic sound performance.
A digital core built for superior sound quality: FPGA + dual Accusilicon femtosecond crystal oscillators. Aibaso has been deeply involved in the portable HiFi field for 20 years, accumulating profound self-developed audio algorithms. The DC-Tonfa uses a self-developed FPGA algorithm to instantly compensate for individual resistor errors, further improving the equivalent accuracy of R2R decoding. Combined with dual Accusilicon femtosecond crystal oscillators, it creates a precise and unified clock source. This effectively reduces jitter, resulting in a purer, more natural sound with richer and more realistic details.
NOS mode + four self-developed digital filters unleash the more diverse sonic potential of the R2R architecture. For a long time, OS and NOS have been almost the only options for R2R devices. DC-Tonfa, relying on advanced self-developed FPGA algorithms, breaks through the limitations of traditional frameworks and, in addition to NOS, has developed four self-developed digital filters, bringing richer sonic expression capabilities to R2R. While retaining the unique charm of R2R, it gives users a greater degree of freedom in sound exploration.
800mW + 800mW@32Ω: Two high-performance TI dual op-amps + four BUF634A chips deliver powerful output in a mini desktop PC at your fingertips.
The DC-Tonfa not only excels in R2R decoding but also delivers outstanding analog amplification. Employing an OP+BUF architecture, the entire unit utilizes two high-performance TI dual op-amps and four BUF634A chips, constructing an audio amplification circuit far exceeding the specifications of small-form-factor headphone amplifiers. The DC-Tonfa boasts a powerful 800mW + 800mW@32Ω output, providing ample driving force and robust dynamic performance, easily handling a wide range of headphone types.
Linear Technology LT3042 Ultra-Low Noise LDO: Reference Power with Lower Noise Than Battery Noise
DC-Tonfa has developed a dedicated regulated power supply solution around the Linear Technology LT3042 ultra-low noise LDO in the core of its DAC. It boasts output noise as low as 0.8μV and 100dB power ripple rejection, outperforming even the battery-powered solutions of most portable devices. This provides a clean and stable power environment for the 8-channel R2R decoding, fully unleashing the sound's potential.
High thrust can also reduce power consumption, eliminating battery anxiety for mobile phones.
Thanks to its efficient circuit design, the DC-Tonfa boasts top-tier power output for its small form factor, yet its actual power consumption is exceptionally well-controlled, achieving a balance between high power and low power consumption. In NOS mode, power consumption is below 100mA/5V (48K standard sampling rate), significantly reducing the burden on your phone's power supply. Even when paired with an iPhone, which has limited power capabilities, you can enjoy listening for extended periods.
A 0.96” OLED screen and a multi-functional knob offer convenient operation, all in one device.
The DC-Tonfa features a 0.96-inch OLED display and a custom encoder, allowing for full-function settings via a multi-function knob on the device. Volume adjustment, function settings, and filter switching are all easily accessible, providing a more intuitive and efficient user experience.
Android APK + PC Control Panel
With rich tuning features, it unlocks more sonic possibilities. It handles all scenarios with ease, from music and games to movies. Android phones support the accompanying APK "iBasso UAC," which supports professional adjustments such as digital filtering, multi-level gain, and channel balance. The PC control panel requires no installation; simply open it in your browser to access full-featured settings for the speaker.
* Supports Windows and macOS systems.
This expands and offers more ways to play; it's more than just a small tail. The DC-Tonfa supports seamless switching between UAC2.0 and UAC1.0 protocols, ensuring broad compatibility with multiple device platforms. The 3.5mm interface also supports SPDIF output.
UAC2.0 mode: can connect to iOS, Android and other mobile phone and tablet devices, and also supports Windows, macOS and Linux computer devices.
UAC 1.0 Mode: Instantly transforms into an external sound card for game consoles like the Switch 2/PS5. Game soundtracks have never sounded so clear and beautiful, immersing you in the joy of gaming.
SPDIF mode: Enables PCM 768kHz digital signal transmission. Through built-in settings or mobile phone UAC software switching, it functions as a professional digital turntable when connected to a mobile phone.
e☆イヤホン× iBasso Audio: A deep fusion of master-level tuning and engineering technology in joint development
e☆イヤホン is a leading Japanese HiFi chain store, deeply rooted in its users and possessing a profound understanding of audiophiles' true sound needs . iBasso collaborated with e☆イヤホン on the DC-Tonfa project, working extensively on everything from sound signature to detailed tuning. Through long-term development and validation, they aimed to present HiFi equipment that better reflects the essence of music and delivers a more immersive and impactful experience. This collaboration aims to convey the perspective of a Japanese professional store through the medium of sound.
| Product Availability | Available (current model) |
| Product Type | DAC (Digital-Analog Converter), Amplifier (Headphone), Portable Amplifier & DAC |
| Style/Type | Portable |
| Features | Dual Headphone Output, High-Res Audio Certified, DSD, MQA (Master Quality Authenticated) |
| Connectivity | Fully Wired |
| DAC | 24-bit Discrete R2R (8-channel) |
| Bluetooth Version | - N.A - |
| Bluetooth Codecs | - N.A. - |
| Sampling / Bitrate | Up to PCM 768 kHz, DSD512 |
| Frequency Response (Hz) | 10 Hz – 40 kHz (-0.8 dB) |
| Signal-to-Noise Ratio (SNR) | 122 dB (AES17-20K A-weighted) |
| Input Connectivity Options | USB Type-C (USB-C) [Data/Audio Signal] |
| Output Connectivity Options | 3.5mm Stereo, 4.4mm (5-Pole) [Balanced] |
| Product Dimensions | 61 × 34.6 × 15 mm (2.4 × 1.36 × 0.59 in) |
| Product Weight (g) | 45g |
| Additional Tech Specs | Output Impedance (3.5mm): 0.2 Ω |
| Colour | Blue |
| Package Contents |
|
| Warranty | 1 year warranty (local) |
No Reviews Available for this Product Yet. Leave Your Review
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