New FiiO K13 R3R is a brand-new desktop headphone amplifier and simply requires a telephone and a favourite pair of headphones for a brand new sort of listening expertise.FIIO
FiiO is an audio model with a variety of moveable and desktop merchandise and its newest launch is the brand-new K13 R2R. This desktop DAC and headphone amplifier makes use of the newest discrete resistor ladder decoding know-how with an ultra-low noise structure and desktop-class driving energy.
FiiO says the K13 R2R serves up “flagship sound high quality” in a compact, versatile and future-proof unit. It even has a window on its top-plate displaying so customers can see the total configuration of chipsets used.
Providing what FiiO describes as “a real hi-fi sound to your laptop computer, pill or telephone,” the K13 R2R can be utilized on a desk, a bedside desk or in an present hi-fi arrange. Customers also can add the FiiO DM13 CD participant and SP5 audio system to construct a full hi-fi system.
The K13 R2R even has a window on its top-plate displaying so customers can see the total configuration of chipsets used.FIIO
Discrete R2R
On the coronary heart of the K13 R2R is a totally discrete resistor ladder DAC. Manufactured from an array of precision resistors configured for true multibit conversion. FiiO says the R2R’s decoding delivers a extra pure and natural sound.
The K13 R2R’s resistor community is paired with FiiO’s proprietary error-correction algorithm for exact matching, linearity and ultra-low distortion. FiiO claims the result’s a sonic presentation that mixes technical accuracy with a way of heat and a pure move that’s good for analytical listening in addition to lengthy musical periods.
To totally unlock the potential of the discrete R2R ladder, the K13 R2R brings collectively an FPGA + DSP system that takes care of the digital sign processing, clocking and oversampling. The unit can deal with audio recordsdata as much as PCM 1536 kHz and DSD1024, for full compatibility with the newest hi-res codecs.
Providing what FiiO describes as “a real hi-fi sound to your laptop computer, pill or telephone,” the K13 R2R can be utilized on a desk, a bedside desk or in an present hi-fi arrange.FIIO
With 2,400mW of energy, the machine has sufficient headroom to drive every thing from a delicate pair of IEMs all the best way as much as a demanding pair of planar magnetic headphones with full management.
Selectable achieve ranges allow customers to fine-tune the output for several types of headphones, guaranteeing quiet backgrounds for delicate displays in addition to ample muscle for driving a pair of 600Ω headphones.
Connectivity
On the subject of connectivity, the K13 R2R has a selection of Balanced XLR and 4.4mm headphone outputs. It additionally has a single-ended 6.35mm headphone jack in addition to balanced and single-ended line outs for driving a pair of energetic displays such because the FiiO SP5 or exterior amplifiers.The K13 R2R has a selection of Balanced XLR and 4.4mm headphone outputs. It additionally has a single-ended 6.35mm headphone jack in addition to balanced and single-ended line outs for driving a pair of energetic displays such because the FiiO SP5 or exterior amplifiers.FIIO
FiiO claims that it’s this degree of flexibility that may flip the K13 R2R into the centerpiece of a desktop or house audio setup, working something from a minimalist headphone set as much as full-on audiophile system.
With the K13 R2R, FiiO has created a DAC and a platform. Outfitted with XMOS XU316 USB receiver, the machine helps USB, optical, coaxial, and I2S inputs, making it suitable with PCs, streamers, CD transports and extra. There’s an OLED show with intuitive UI for management of enter choice, achieve, filters and output modes.
Audiophile Commonplace
Low-noise LDO regulators and dual-independent energy provides used within the K13 R2R present each isolation and stability whereas premium movie capacitors and precision resistors are there to ship consistency within the R2R ladder.FiiO claims the K13 R2R might be the centerpiece of a desktop or house audio setup, working something from a minimalist headphone set as much as full-on audiophile system.FIIO
The unit is housed in an all-aluminum chassis with precision CNC machining to offer each sturdiness and environment friendly warmth dissipation. The knurled quantity knob has been engineered for exact and tactile management.
Regardless of its revolutionary internals, FiiO says it has designed the K13 R2R with usability in thoughts. It’s show and intuitive menu system supply immediate suggestions on enter, pattern fee and filter settings. There’s a full suite of digital filters for something from a clean roll-off for relaxed listening to sharp filters for optimum accuracy.
The FiiO app can be utilized to manage the unit and it additionally offers entry to Parametric EQ for creating private sound profiles.
Pricing and Availability:
The FiiO K13 R2R shall be out there by means of approved retailers in September 2025 at £279, $319, €319. Pre order at Superior MP3.
Tech Specs:
Shade: Black, Silver
Important management chip (MCU): ESP32-S3
USB chip: XMOS XU316
DAC: Absolutely differential true 24Bit R2R DAC resistor arrays
Quantity management chip: NJW1195AV
R2R and LPF op-amp: OPA1642 x 4
LO buffer op-amp: LTA8092 x 2
Headphone amplifier: OPA1642 x 2+TPA6120A x 2
USB enter: 384kHz/32-bit, DSD256.
Coaxial enter: 192kHz/24bit, DSD64.
Optical enter: 96kHz/24-bit.
USB connector: Twin Kind-C.
Bluetooth 5.4.
Show: Customized LCD.
Energy enter: AC 100-240V 50/60Hz; DC 12V/2.5A.
Dimensions: About 210 x 188 x 42mm (together with toes).
Weight: 980g.
Single-ended energy output 1: L+R≥1220mW +1220mW (32Ω, THD+N＜1%) (32Ω/SE/excessive achieve).
Single-ended energy output 2: L+R≥150mW+150mW (300Ω, THD+N＜1%) (300Ω/SE/excessive achieve).
Balanced energy output 1: L+R≥2400mW+2400mW (32Ω, THD+N＜1%) (32Ω/balanced/excessive achieve).
Balanced energy output 2: L+R≥600mW+600mW (300Ω, THD+N＜1%) (300Ω/balanced/excessive achieve).
Frequency response: 20Hz~80kHz: Attenuation＜2.9dB
SNR: ≥116dB (A-weighted).
Noise ground: PO＜9uV (A-weighted); BAL＜18uV (A-weighted)
Output impedance: PO＜0.7Ω (32Ω load); BAL＜1Ω (32Ω load)
THD+N: About 0.0173% (1kHz/-6dB@32Ω).
