FiiO K13 R2R — Desktop DAC & Headphone Amplifier | 35,000 Taka | 1 Year Official Warranty

Upgrade your desktop audio rig with the FiiO K13 R2R, a powerful and feature-rich desktop DAC + headphone amplifier built around FiiO’s proprietary 24-bit R2R resistor-ladder decoding. If you want a warm, natural R2R character with modern conveniences (balanced outputs, Bluetooth, PEQ, and plenty of power), the K13 R2R is a versatile one-box solution for headphones and studio monitors.

What makes the K13 R2R special

• True 24-bit R2R ladder DAC — a fully differential, four-channel resistor array design (192 precision thin-film resistors total) that aims for a natural, musical presentation with very low distortion.
• Desktop-grade output power — up to roughly 2400 mW + 2400 mW (balanced) into 32 Ω, giving the K13 the muscle to drive everything from sensitive IEMs to demanding over-ears and planars.
• Modern connectivity & features — USB, optical, coaxial and I²S inputs, balanced XLR + 4.4 mm and single-ended 6.35 mm headphone outs, built-in Bluetooth 5.4 (LDAC support), and a 10-band parametric/graphic PEQ accessible via the FIIO Control/web UI.
• Flexible sound modes — NOS (Non-Oversampling) and Oversampling modes let you choose between a more organic R2R sound or a cleaner, DSP/oversampled presentation.

Sound & performance (short)

Expect a rich, textured midband and natural tonal balance typical of R2R designs, with satisfying bass control and detailed treble. The fully-balanced audio chain and high-quality analogue stages keep noise low and dynamics high — ideal for critical listening, mixing reference, or high-resolution music enjoyment. Independent reviewers have praised its build, feature set, and musical presentation.

Who it’s for

• Audiophiles who want authentic R2R warmth plus modern conveniences (Bluetooth, PEQ).
• Home studio users needing a clean preamp/line-out and powerful headphone amp.
• Listeners who want a single desktop hub for headphones and active monitors.

Quick spec highlights

• 24-bit R2R resistor-ladder DAC (192 resistor array) — fully differential design.
• Balanced power ~2400 mW + 2400 mW @ 32 Ω (high gain).
• PCM & DSD support (high-res playback), USB XMOS receiver, optical/coax/I²S inputs.
• Balanced XLR, 4.4 mm balanced & 6.35 mm single-ended headphone outputs; balanced & SE line outs.
• Bluetooth 5.4 with LDAC, 10-band PEQ (app/web), selectable NOS/OS modes, robust power supply design.

Price & warranty
Available at HiFi Heaven for 35,000 taka with 1 year official warranty — a compelling option if you want R2R sound and desktop functionality without jumping into boutique price territory.

FiiO K13 R2R: True 24-Bit R2R DAC Headphone Amplifier & Preamplifier
Our Excusive Price: ৳ 35,000 (Retail Price: ৳ 39,500)

(Available in Black and Silver)

The Pinnacle of Desktop Audio Performance
The FiiO K13 R2R is a groundbreaking desktop headphone amplifier and preamplifier that redefines audio fidelity with its bespoke True 24-Bit R2R DAC architecture. Engineered for the discerning audiophile, the K13 R2R seamlessly integrates cutting-edge technology with premium components to deliver a rich, natural, and profoundly musical sound experience.

Key Features:
True 24-Bit R2R DAC: At its heart lies a fully differential four-channel design utilizing 192 precision resistors. This true resistor ladder configuration ensures an authentic, organic, and highly musical sound reproduction with significantly lower noise and distortion than standard DAC chips.

Dual NOS/OS Modes: Tailor the sound to your preference.

Non-Oversampling (NOS): For an authentic, organic, and pure digital-to-analog conversion.

Oversampling (OS): Up to 384kHz for a cleaner, more detailed, and refined presentation.

Massive Output Power: Drive virtually any headphone with ease. The fully balanced amplifier circuit delivers a colossal 2400mW + 2400mW of balanced output power (at 32Ω), ensuring even the most demanding planar magnetic or high-impedance dynamic headphones perform to their full potential.

Versatile Desktop Hub: Functions as a high-performance DAC, Preamplifier, and Power Amplifier, supporting high-resolution audio decoding up to PCM 384kHz/24bit and DSD256.

Precision Sound Customization (10-Band PEQ): Fine-tune your audio with the 10-Band Parametric Equalizer via the FIIO Control app or web interface. Customize presets, apply headphone correction, and even share your optimal curves.

Fully Balanced Amplifier Circuit: Ensures differential signal processing across the entire audio path for minimal distortion, maximum dynamic range, and robust pop-noise protection.

Advanced & Stable Power Supply: Features a built-in 30W AC power supply (100-240V) with external DC input option, multi-rail regulation, and premium ELNA RA3 audiophile capacitors for ultra-stable and clean power delivery.

High-Resolution Bluetooth: Enjoy wireless HiFi with Bluetooth 5.4, supporting LDAC, AAC, and SBC codecs.

Premium Build & Design: Encased in a unibody aluminum chassis with a striking “skylight” RGB lighting accent, blending a minimalist aesthetic with a modern tech flair. The custom HD LCD Display clearly shows critical information like sampling rate, volume, gain, and output mode.

Specifications at

• Color: Black, Silver
• Main control chip (MCU): ESP32-S3
• USB chip: XMOS XU316
• DAC: Fully differential true 24Bit R2R DAC resistor arrays
• Volume control chip: NJW1195AV
• R2R and LPF op-amp: OPA1642*4
• LO buffer op-amp: LTA8092*2
• Headphone amplifier: OPA1642*2+TPA6120A *2
• USB input: 384kHz/32bit, DSD256
• Coaxial input: 192kHz/24bit, DSD64
• Optical input: 96kHz/24bit
• USB connector: Dual Type-C
• Display: Custom LCD
• Power input: AC 100-240V 50/60Hz; DC 12V/2.5A
• Dimensions: About 210x188x42mm (including feet)
• Weight: About 980g
• Single-ended power output 1: L+R≥1220mW +1220mW (32Ω, THD+N＜1%) (32Ω/SE/high gain)
• Single-ended power output 2: L+R≥150mW+150mW (300Ω, THD+N＜1%) (300Ω/SE/high gain)
• Balanced power output 1: L+R≥2400mW+2400mW (32Ω, THD+N＜1%) (32Ω/balanced/high gain)
• Balanced power output 2: L+R≥600mW+600mW (300Ω, THD+N＜1%) (300Ω/balanced/high gain)
• Frequency response: 20Hz~80kHz: Attenuation＜2.9dB
• SNR: ≥116dB (A-weighted)
• Noise floor: 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)