FiiO DM15 R2R White Hi-Fi CD Player

Portable CD Player with True R2R DAC Architecture

The FiiO DM15 R2R is a portable CD player engineered for listeners who want their disc collection to sound as musical as it did in the late 90s — without giving up modern connectivity. At its core sits a fully differential 24-bit R2R resistor-ladder DAC built from 192 precision thin-film resistors, paired with an FPGA platform and a proprietary MCU controller. The result is a warmer, more organic presentation than typical delta-sigma designs.

What Sets This Portable CD Player Apart

Most portable CD players still rely on delta-sigma DACs borrowed from consumer electronics. This player instead uses a true discrete resistor-ladder network — the same architecture found in audiophile desktop DACs costing several times more. A patented Desktop Mode bypasses the internal battery when plugged in via USB-C, unlocking the full 1150 mW + 1150 mW balanced output. CD-to-WAV ripping runs in the background while you listen, so a favourite album can be archived to a USB flash drive without interrupting playback.

R2R DAC Architecture and Audio Performance

The DAC stage is the heart of any CD player, and this model uses a topology rarely seen at this price. Its fully differential 24-bit R2R array, controlled by an FPGA platform and proprietary MCU, delivers a measured THD+N below 0.030% at 1 kHz and a signal-to-noise ratio of at least 112 dB (A-weighted). Background noise stays under 8.5 µV on the headphone output, so quiet passages remain truly quiet.

• DAC: Fully differential 24-bit R2R resistor array (192 resistors, 48 per channel)
• THD+N: < 0.030% (1 kHz / 0 dB at 32 Ω)
• Signal-to-Noise Ratio: ≥112 dB (A-weighted)

Headphone Output Power and Wired Connectivity

Output power is where this player separates itself from typical portable CD players. From the balanced 4.4 mm headphone port, up to 1150 mW + 1150 mW is available in Desktop Mode and 815 mW + 815 mW on battery — enough to drive demanding over-ear headphones that most portables cannot. The 3.5 mm single-ended port offers 315 mW + 315 mW desktop and 220 mW + 220 mW portable. A 3.5 mm line-out doubles as coaxial and optical digital output for external DACs or amplifiers.

• Balanced Headphone Output (Desktop): 1150 mW + 1150 mW (32 Ω, THD+N < 1%)
• Single-Ended Headphone Output (Desktop): 315 mW + 315 mW (32 Ω, THD+N < 1%)
• USB DAC Input: 384 kHz / 32-bit PCM, native DSD256

Battery Life, Build Quality, and Portable Design

A 4700 mAh pure cobalt high-voltage lithium battery powers roughly seven hours of continuous CD playback, and PD3.0 fast charging refills the cell in about two hours. The aluminum alloy chassis pairs with a scratch-resistant tempered glass front panel and lid, plus a self-rebounding steel ball hub for precise disc alignment. Compared to the previous DM13, this model is slimmer by 2 mm while delivering substantially more output power.

• Battery: 4700 mAh pure cobalt high-voltage lithium, ~7 hours playback
• Dimensions: 144 × 137 × 25.5 mm
• Weight: 471.5 g

Who Should Choose This Portable CD Player

This portable CD player is the right choice for audiophiles and CD collectors who want a portable source that does not compromise on sound quality. Listeners with a library of vintage CDs will hear the warmer, more forgiving character that R2R DACs are known for, while headphone enthusiasts running power-hungry planar magnetics will appreciate the 1150 mW balanced output that most portable players cannot deliver. It also suits users who want a single device to act as a CD transport, a USB DAC for a laptop, and a Bluetooth transmitter for wireless headphones or speakers — all without swapping cables. The included infrared remote, 24 sound presets, and ESP anti-skip switch make it equally comfortable on a desk or in a listening chair across the room.

From the DM13 to the DM15 R2R

This model builds directly on user feedback gathered from FiiO's earlier DM13 portable CD player. Where the DM13 introduced a modern take on the classic Discman form factor, the new model adds a true discrete R2R DAC, a balanced desktop-grade output stage, Bluetooth 5.4 transmission, and CD-to-WAV ripping — all in a chassis slimmed by 2 mm. FiiO positions the player as a complete digital hub for the modern CD listener, combining vintage disc playback with the connectivity of a contemporary hi-fi source.