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Description
FiiO Warmer R2R Desktop Tube Buffer and DACFiiO Warmer R2R is a desktop DAC and tube buffer that combines a discrete R2R resistor ladder digital to analog converter with JJ E88CC vacuum tubes for a rich, analog sound, featuring NOS OS modes, multiple digital inputs (USB, optical, coaxial), RCA XLR outputs, and large, backlit VU meters for a classic, musical listening experience. Get this amazing DAC now from the official dealer of FiiO in Bangladesh, Gears for Ears today with an official 1
FiiO Warmer R2R is a desktop DAC and tube buffer that combines a discrete R2R resistor ladder digital-to-analog converter with JJ E88CC vacuum tubes for a rich, analog sound, featuring NOS/OS modes, multiple digital inputs (USB, optical, coaxial), RCA/XLR outputs, and large, backlit VU meters for a classic, musical listening experience. Get this amazing DAC now from the official dealer of FiiO in Bangladesh, Gears for Ears today with an official 1 year warranty.
R2R desktop DAC with JJ tube buffer
The WARMER R2R leans into tone. It’s a desktop R2R DAC with a tube buffer that adds body, color, and a relaxed kind of fullness that digital sometimes forgets. The fully-differential 24-bit resistor-array DAC sets the baseline with steady, unforced detail. Four JJ Electronic E88CC tubes bring a soft glow to the mids. Dual mechanical VU meters add a warm pulse to the room. With multiple digital and analog inputs, it works just as easily on a desk as it does in a living room system. When you want music to feel easy and inviting, this is a good way to get there.
Extensive connectivity
USB, optical, and coaxial inputs let you move between sources quickly. RCA and XLR outputs cover powered speakers, integrated amplifiers, and headphone amplifiers. Both outputs can run at the same time, which is handy if you enjoy switching between speakers and headphones during the day.
Fully-differential 24-bit R2R DAC
FIIO’s four-way fully-differential R2R design uses 192 thin-film resistors with 0.1% accuracy and low drift. It delivers the grounded, weighted presentation R2R fans look for. Instruments sit where they should. Details feel natural rather than etched. It’s a DAC that trades flash for ease.
Tube warmth with JJ Electronic E88CC valves
The tube buffer uses four JJ Electronic E88CC tubes fed by a ±28V high-voltage supply. JJ tubes are steady performers with a long service life, and here they bring a rounded, organic character to the signal. Edges soften. Vocals pick up a little more texture. If you like your music with a touch of warmth, the tubes handle that work gracefully.
LED-lit mechanical VU meters
The dual VU meters add a subtle sense of motion to your desk. They’re true mechanical meters powered by a dedicated IC, not a digital animation, so they move with a tactile kind of honesty. The warm backlight settles into the background and sets the tone for late evening listening.
Low-noise linear power supply
A 46W toroidal transformer provides clean, stable power with low ripple and low magnetic leakage. That means less noise, better channel separation, and more consistent performance from both the DAC and tube stages. The measured results back it up—≥114dB SNR and a ≤7uV noise floor.
Vintage-leaning design with solid thermals
The chassis follows FIIO’s squared, minimal desktop aesthetic, paired with a grille-pattern top plate that vents heat efficiently. The tubes stay comfortable, the internals stay stable, and you can settle into long listening without worrying about thermals.
NOS and OS modes
Two decoding modes let you shape the character of the sound. NOS mode keeps the original sample rate intact for a relaxed, effortless presentation. OS mode upsamples to 384kHz for a slightly more defined edge. It’s an easy way to fine-tune the feel of the music.
UAC1.0 and UAC2.0 compatibility
A simple lever switches between UAC1.0 and UAC2.0, which keeps the WARMER R2R friendly with consoles, computers, and mobile devices. No drivers needed. Just plug in the source you want and start playing.
Product highlights
- Fully-differential 24-bit R2R resistor-array DAC
- Four JJ Electronic E88CC tubes in the buffer stage
- USB, optical, and coaxial digital inputs
- RCA and XLR line outputs with simultaneous output capability
- LED-backlit mechanical dual VU meters
- 46W low-noise toroidal linear power supply
- NOS and OS decoding modes
- UAC1.0/2.0 support for wide device compatibility
- Vintage-inspired chassis with effective heat dissipation
- Supports PCM up to 384kHz/32bit and DSD256
- Color options: black or silver
Specifications
- Color: Black or silver
- Dimensions: 8.8 x 8.4 x 2.6in (223.5 x 213 x 66.8mm, incl. feet)
- Weight: 6.3lbs (2.87kg)
- Display: Mechanical pointer VU meters
- DAC: Fully-differential true 24-bit R2R resistor array
- Tube stage: JJ Electronic E88CC x4
- Power supply: 46W toroidal audio linear transformer
- USB decoding: PCM 384kHz/32bit, DSD256
- Coaxial decoding: PCM 192kHz/24bit
- Optical decoding: PCM 96kHz/24bit
- RCA output: ≥1.8Vrms L+R (1kHz @ 10kΩ)
- XLR output: ≥3.8Vrms L+R (1kHz @ 10kΩ)
- Frequency response: 20Hz–45kHz, attenuation <2.4dB
- SNR: ≥114dB (A-weighted)
- Noise floor: ≤7uV (A-weighted)
- THD+N: ≤0.053% (1kHz / -7dB @ 10kΩ)
What's included
- WARMER R2R
- AC power cable
- USB cable
- Spare fuse tube
- Quick start guide
- Warranty card
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.5 ★★★★★
Based on 7 reviews
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Product Reviews
★★★★★ 4
Fun toy for dogs that like to fetch
Color: Green-M
The toy is great, good quality, and durable. My dog will only play with it if I am am playing with her, otherwise she loses interest and that is why I am giving it a 4 out of 5. She is a 60 lb. dog and the size. It is a good price for the product and when my dog does play with it the multiple tabs on it make it user friendly for chewing and tossing.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 2, 2026
★★★★★ 5
Surprisingly Durable Soccer Ball
Color: Green-M
Ethan is a a chewer par excellence. When his soccer ball arrived several months ago, I expected it to be a raggedy mess within days. I was wrong. The only chewed strap is the longer black one. All others are as good as new. The ball itself is a good size for him, a slightly larger Sheltie. It is one of his favorite toys for running and fetching play. As far as value for money, we’ve had several months to enjoy it without thinking of retiring it to the damaged toys bin. I would recommend it for durability and exercise play.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 30, 2026
★★★★★ 5
Total Glow in the dark entertainment
Color: Glow in the dark - L
This toy is my Aussie Shepherd’s favorite. It is durable. I love that in addition to playing fetch, the tabs make it possible for my dog to swing it from his own mouth and throw it in the air. The glow-in-the-dark feature is amazing! I throw the ball in the pitch black yard and watch it run back at me as my dog comes towards me. It's fun to watch!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 26, 2026
★★★★★ 3
Straps don’t last
Color: Glow in the dark - L, Color: Glow in the dark - L
My boyfriend’s dog chewed off all the straps in the first day. Decent ball, but why have straps that dogs can chew off so fast.
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Reviewed in the United States on January 5, 2026
★★★★★ 4
Fine choice for smaller dogs
Color: Green-M
A good choice for smaller dogs. My mini poodle enjoys flipping this around and playing tug of war with her humans. She cannot be left with it for any unsupervised play, because she was able to begin shredding one of the straps in a matter of a few minutes. The included pump works great.
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Reviewed in the United States on January 2, 2026
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