DUNU Concept R

Portable R2R CD Player

• Fully discrete R-2R decoder
• Precision-machined from a solid block of aircraft-grade aluminum
• Retro digital volume control with analog feel
• Classic layout with intuitive one-touch track access
• 192 precisely matched resistors in a discrete arrangement
• Designed with a fully differential, symmetrical four-channel design
• Acoustically tuned to reference quality
• Amplification with selectable Class A/AB modes
• 1.3W robust output power
• CD-specific mechanism with a proprietary high-performance servo architecture
• Slim tempered glass window
• 2.08-inch monochrome OLED display

The DUNU CONCEPT R is a portable CD player that combines high-end R2R decoding with modern technology.

But the DUNU CONCEPT R is not just a portable CD player—it is every audiophile's dream.

With full R2R decoding and extensive output power options, it offers the perfect blend of analog warmth and modern digital precision.

Ideal for audiophiles and music lovers who want high-quality sound everywhere.

This device brings back the analog warmth and soul of vinyl and CD music while integrating state-of-the-art digital technology.

With a full R2R DAC architecture, the CONCEPT R offers an unparalleled listening experience.

Its aerospace-grade aluminum chassis and CNC precision construction make it visually stunning and durable.

The CONCEPT R supports up to 1220 mW of output power at 32 Ω, allowing it to drive even high-impedance headphones with ease.

The robust 12,000 mAh battery provides up to 10 hours of playback time, making it the ideal device for audiophiles who demand the highest standards of mobility and sound quality.

Full R2R decoding: Features a fully differential four-channel R2R DAC for superior natural sound.

High output power: Delivers up to 1220 mW at 32 Ω for powerful sound performance across a wide range of headphones.

Long battery life: A 12,000 mAh battery provides up to 10 hours of playback with balanced output for long-lasting performance.

Magnetic CD clamp: Ensures stable playback with improved disc reading accuracy and smooth operation.

USB DAC function: Supports PCM768kHz and DSD512 for use as a high-quality USB DAC with your PC or other devices.

Technical specifications

Dimensions: 205 x 150 x 32 mm

Weight: 1165 g

Screen: 1.68-inch OLED display

USB DAC support: PCM 768 kHz/32 bit, DSD512

Battery: 12,000 mAh with up to 10 hours of playback

Power input: USB-C, 5 V/2 A or 9 V/2 A

Audio outputs: 3.5 mm and 4.4 mm headphone outputs, coaxial/optical SPDIF output

Audio output specification

3.5 mm headphone output:

Output power (A): Low gain: 57 mW at 32 Ω, High gain: 158 mW at 32 Ω, High gain: 330 mW at 32 Ω (DC power supply)

Output power (A/B): Low gain: 47 mW at 32 Ω, High gain: 158 mW at 32 Ω, High gain: 268 mW at 32 Ω (DC power supply)

THD+N: 0.03%

Dynamic range: 116 dB

SNR: 116 dB

Output impedance: 4.7 Ω

4.4 mm headphone output:

Output power (A): Low gain: 195 mW at 32 Ω, High gain: 551 mW at 32 Ω, High gain: 1220 mW at 32 Ω (DC power supply)

Output power (A/B): Low gain: 195 mW at 32 Ω, High gain: 551 mW at 32 Ω, High gain: 1087 mW at 32 Ω (DC power supply)

THD+N: 0.02%

Dynamic range: 117 dB

SNR: 117 dB

Output impedance: 6.6 Ω

Scope of delivery

1 x DUNU CONCEPT R portable CD player

1 x USB-C charging cable

1 x Quick start guide

1 x Protective case