iBasso DC-Tonfa 8CH R2R Portable DAC USB AMP Decoder Headphone Amplifier

Features:
>Advanced R2R Portable DAC/AMP.
>Co-Developed by iBasso Audio and Japan’s E-Star Earphone.
>True 24-Bit 8-Channel Fully Balanced R2R Architecture.
>Total 312 High-Precision Viking Metal Film Resistors.
>Proprietary FPGA Algorithm & Dual Accusilicon Femtosecond Clocks.
>Powerful Player-Grade Amplifier Section(2x TI Dual OPAMPs+4x BUF634A).
>Strong Output: 800mW Per Channel @ 32Ω.
>Linear Technology LT3042 Ultra-Low Noise LDO Power Supply.
>Dedicated NOS Mode+4 Custom Digital Filters.
>4.4mm Balanced and 3.5mm Single-Ended Headphone Outputs.
>0.96” OLED Display Screen.
>Premium Quality Aluminium Alloy Chassis.
>Tempered Glass Front and Back Panels.

>Switchable UAC 2.0 & UAC 1.0 Modes.
iBasso has introduced the all-new DC-Tonfa, a professionally crafted flagship-grade portable R2R DAC/AMP. 
iBasso has crafted the DC-Tonfa featuring advanced 24-Bit 8-Channel Fully balanced R2R architecture. 
It is a collaborative masterpiece co-developed by iBasso and e-star Earphone. 
The DC-Tonfa seamlessly blends the discrete 8-channel R2R network into a singular, cohesive force.  
It promises top-tier analog sound that captures the attention of its listeners instantly. 
iBasso has developed the DC-Tonfa with a specialized 60-resistor hardware compensation network that ensures 
the ladder DAC works at its absolute full potential. With the iBasso DC-Tonfa,
 experience the ultimate synergy of discrete architecture, masterful power delivery, and lush R2R musicality!!

Fully-Balanced 8-Channel R2R DAC Architecture:-
The DC-Tonfa introduces a true 24-bit, 8-channel fully differential R2R architecture, 
engineered to reproduce music with unmatched analog realism. The foundation is laid by a staggering 
312 ultra-low temperature drift Viking metal film resistors, delivering exceptional detail and reducing 
zero-crossing distortion to an absolute minimum. This fully-balanced R2R network ensures a crystal 
clear sound performance with a rich, organic tone, and next-level clarity.

Proprietary iBasso FPGA Control System:-
The signal accuracy and timing with the advanced 8-channel fully-balanced R2R architecture are precisely
managed by iBasso’s proprietary FPGA algorithms. It works dynamically alongside dual Accusilicon 
femtosecond crystal oscillators to provide a clean, jitter-free sound presentation. The DC-Tonfa supports 
dedicated NOS mode and has 4 custom digital filters as well.

Strong, Sensational Output With Desktop-Grade Amplification Stage:-
iBasso built its legacy on premium portable players, and they have poured that expertise directly into 
the amplification circuit of the DC-Tonfa. It houses an aggressive player-grade architecture featuring 
2 high-performance Texas Instruments dual OP-AMPs and 4 BUF634A buffers. 
This complex OPAMP design produces a strong output, reaching up to 800mW per channel at 32Ω
 impedance loads. With such a strong output thrust, the iBasso DC-Tonfa works flawlessly with 
demanding IEMs and Headphones. It offers supreme bass control, excellent midrange coherency, 
and clean treble extensions with such a powerful amplification section.

Exclusive Build with Aluminium Alloy Chassis:-

iBasso has a history of designing well-made and solid-performing portable DAC/AMPs. 
The latest DC-Tonfa is no different. The chassis is machined from premium aluminium alloy and flanked
by tempered glass panels, echoing a sharp, modern precision. This rigid full-metal chamber isn't just for 
aesthetics, it houses a brilliant 0.96-inch OLED screen and a multi-function rotary dial for absolute control 
over volume and settings.

Ultra-Low Noise Power Supply Design:-

iBasso DC-Tonfa actively minimizes unwanted electrical noise by utilizing Linear Technology’s flagship 
LT3042 ultra-low noise LDO regulator. Delivering power that is cleaner than most battery-operated devices 
with a noise floor as low as 0.8μV, it allows the complex R2R configuration to blend the frequency 
bands with a pristine, jet-black background.

Multi-Device Compatibility:-

iBasso DC-Tonfa is a versatile device which you can use with a wide range of devices with its dedicated UAC1.0 
and UAC2.0 modes. It seamlessly integrates well with Windows, MacOS, Android, iOS, and gaming devices 
that require UAC1.0 mode specifically. The 3.5mm output also supports digital optical SPDIF output.

Specifications

DAC: 8CH R2R DAC
USB Input: Up to PCM 768kHz
                  Up to DSD512x
Weight: 45g
Dimensions: 61mm × 34.6mm × 15mm
4.4mm Balanced Headphone Output:

SNR: 122dB AES17-20k A-wt
Dynamic Range: 123dB AES17-20k A-wt
THD+N: 0.004%
Output Power:
800mW + 800mW @ 32Ω; THD < 0.5%
Output Voltage: 5.2Vrms (High Gain)
                          2.6Vrms (Low Gain)
Channel Separation: 124dB
Frequency Response: 10Hz–22kHz (-0.3dB)
                                   10Hz–40kHz (-0.8dB)
Output Impedance: 0.5Ω

3.5mm Single-Ended Headphone Output:

SNR: 118dB AES17-20k A-wt
Dynamic Range: 115dB AES17-20k A-wt
THD+N: 0.0056%
Output Power: 219mW + 219mW @ 32Ω; THD < 0.1%
Output Voltage: 2.6Vrms (High Gain)
                          1.3Vrms (Low Gain)
Channel Separation: 121dB
Frequency Response: 10Hz–22kHz (-0.3dB)
                                   10Hz–40kHz (-0.8dB)
Output Impedance: 0.2Ω

Payment Terms:
1. We only accept paypal payment, other payment methods are not acceptable.
2. Payment should be completed within 7 days of bid or auction closing. Or unpaid dispute will be filed for non-payer after 7 days of sales day.

Shipping Terms:
1. We ship to Worldwide.
2. We ship your orders within 1-2 business days after the payment cleared. 
3. Item shipped from HONGKONG/Singapore / China /  Post Airmail, reach most of the countries within 15 to 25 days. 
If some countries cannot send the default shipping channel.  need to choose to send FEDEX, DHL, EMS express delivery, you need to pay additional shipping costs, 
and we will contact you by email for the specific amount.
If you need to choose EMS/DHL/FEDEX, please contact us. But the need to charge additional shipping costs.
4. Deivery time depends on destination and other factors, it may takes up to 25 days. If you don't receive the item after 25 days,
Please contact us, we'll investigate and solve the delivery problem.

Return Terms:
1. If you receive defective item, please kindly notify us within 7 days. We will guide you the returning instruction for replacement or refund.
2. If you purchased in improper condition, please NOTE that the sipping and handling fee will not be refund,All costs incurred for product returns are 
to be paid by the buyer. (Return the resulting duties,) Guarantee the integrity of the returned product.all return shipping fee should be paid by the buyer 
unless item DOA.Please notice us within 3 days and return the case within 7 days after receiving (The date on Post Mark is for standard). After our receiving
 of the items in good appearance condition, you may have a replacement or refund as long as we cancel the order on ebay, and Shipping cost is non-refundable,
 as you know shipping & handling was paid to post office.
3.If the item was sent back for repair, buyer pays for the returning fee. We will be responsible for 2nd shipping cost & handling.
If you ask for replacement or repair after one month since you paid, you need to pay for the 2nd shipping cost & handling.
If you have to return the item for the refund, you will pay a 20 % restocking fee.

4.The address on the parcel is not ours, it is the postman, please DON'T SHIP TO THERE. Please contact with us for the return address before you return it, otherwise 

we can’t get the parcel you returned. Please contact us for return address before you send.


Warranty:

1 year carry in warranty.
Return and exchange item within 30 days of delivery if item not functioned.
Buyer responsible shipping and handling fee.

Buyers Please Note: 
Import duties, taxes and charges are not included in the item price or shipping charges. These charges are the buyer responsibility.
Please check with your country customs office to determine what these additional costs will be prior to bidding/buying.

Custom Duties & Taxes:
1. Import duties, taxes, and charges are not included in the item price or postage cost. These charges are the buyer's responsibility.
2. Avoiding some unnecessary trouble, please check with your country's customs office to inform us what we should declare its value before shipping.
3. If the condition of your purchase is incorrect, please pay attention to the resulting customs duties for the return, and the customs duties arising from the return should be paid by the buyer, unless the item DOA.

Feedback:
1. If you are dissatisfied for any reason, please don't be quick to leave us neutral or negative feedback. We work hard to make sure EVERY CUSTOMER 100% SATISFIED and resolve any problem for you and always leave positive feedback to all our customers.
2. If you are satisfied with the product you received, please kindly leave us a positive feedback and 5 star DSR. If there is any problem of your order, please feel free to contact us firstly, we are responsible and credible seller, will follow it for you asap.


On Aug 4, 2026 at 07:36:22 PDT, seller added the following information:

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