SMSL VMV D3R Dual ROHM BD34302EKV Flagship DAC with 10MHz OCXO Clock, Dual Toroidal PSU, and Bluetooth 5.4 LDAC

Flagship ROHM Dual-Mono DAC with OCXO Clock and Dual Toroidal Power

The SMSL VMV D3R is a statement-grade desktop digital-to-analog converter and fully-balanced analog preamplifier representing the pinnacle of SMSL's VMV series engineering. Built around a dual ROHM BD34302EKV DAC array in a true dual-mono configuration, with a built-in 10 MHz OCXO master clock delivering +/-3 ppb stability, dual custom toroidal transformers providing independent power to the digital and analog stages, an XMOS XU-316 processor for PCM 32-bit/768kHz and native DSD512, and a Qualcomm Bluetooth 5.4 platform supporting LDAC, the D3R delivers a measured 123 dB dynamic range, 0.00013% THD+N through its fully-balanced XLR outputs, and a 3.49-inch tempered glass color display — all housed in a substantial 3.81 kg CNC-machined aluminum chassis that announces its flagship intentions before a single note is played.

Dual ROHM BD34302EKV in True Dual-Mono Configuration

Each channel of the D3R receives its own dedicated ROHM BD34302EKV DAC chip from ROHM's MUS-IC series, operating independently with separate power regulation and signal paths. This dual-mono architecture dramatically improves channel separation while reducing stereo crosstalk. The measured results speak for themselves: 123 dB dynamic range and SNR through the balanced XLR outputs, 122 dB through RCA, with THD+N of just 0.00013% (XLR) and 0.00017% (RCA).

10 MHz OCXO Master Clock with +/-3 ppb Stability

At the timing heart of the D3R is a built-in oven-controlled crystal oscillator (OCXO) generating a precision 10 MHz master clock. With frequency stability rated at +/-3 parts per billion, this is the same class of timing reference found in laboratory instrumentation. The OCXO maintains its crystal at a constant elevated temperature inside a miniature oven, virtually eliminating the frequency drift caused by ambient temperature changes. A dedicated external clock input allows integration with an even higher-grade reference if desired.

Dual Toroidal Transformers: Independent Digital and Analog Power

Two custom-wound toroidal transformers separately feed the digital processing and analog output stages. This physical and electrical separation prevents high-frequency digital noise from contaminating the sensitive analog signal path. Multiple stages of low-noise regulation follow each transformer, ensuring that every active component in the D3R receives clean, stable, isolated power.

XMOS XU-316 with Full Format Support

The XMOS XU-316 USB interface is the latest-generation processor for high-resolution audio, supporting PCM at 32-bit depth up to 768 kHz sampling rate and native DSD512. Full MQA and MQA-CD hardware decoding is available across USB, optical, coaxial, and AES/EBU inputs.

Fully-Balanced Analog Architecture

From the DAC output stage through the precision volume control to the XLR output jacks, the entire analog signal path maintains a true balanced differential topology. This end-to-end balanced design actively cancels common-mode noise and preserves the full dynamic range and channel separation achieved at the conversion stage. The XLR outputs deliver a robust 5.2 Vrms, while the RCA outputs provide 2.5 Vrms.

Qualcomm Bluetooth 5.4 with LDAC

The D3R incorporates Qualcomm's latest Bluetooth 5.4 platform, supporting LDAC at up to 990 kbps for near-lossless wireless transmission, alongside aptX, aptX HD, AAC, and SBC codecs. Wireless playback benefits from the same dual BD34302EKV conversion, OCXO clocking, and fully-balanced output stage as every other input.

Comprehensive Digital Connectivity

Inputs include USB-B and USB-C, optical and coaxial SPDIF, AES/EBU on XLR, and I2S via HDMI LVDS. Balanced XLR and single-ended RCA analog outputs feed your amplification. A dedicated external clock input provides a future-proof upgrade path.

3.49-Inch Tempered Glass Color Display

A large 3.49-inch fully-laminated tempered glass color display presents playback status, input selection, sampling rate, volume level, and format information with exceptional clarity. During Bluetooth playback, the display shows synchronized lyrics. The updated user interface is designed for intuitive navigation through the D3R's extensive feature set.

Specifications

• DAC Chip: 2 x ROHM BD34302EKV (MUS-IC Series, Dual-Mono)
• USB Processor: XMOS XU-316
• Clock: Built-In 10 MHz OCXO (+/-3 ppb Stability)
• Inputs: USB-B / USB-C / Optical / Coaxial / I2S (HDMI LVDS) / AES/EBU / Bluetooth 5.4
• Outputs: XLR (Balanced) / RCA (Single-Ended)
• Output Level (XLR): 5.2 Vrms
• Output Level (RCA): 2.5 Vrms
• THD+N (XLR): 0.00013% (-117 dB)
• THD+N (RCA): 0.00017% (-115 dB)
• Dynamic Range (XLR): 123 dB
• Dynamic Range (RCA): 122 dB
• SNR (XLR): 123 dB
• SNR (RCA): 122 dB
• Bluetooth: 5.4 (LDAC, aptX HD, aptX, AAC, SBC)
• MQA: Full Decoder + MQA-CD
• Display: 3.49-inch Tempered Glass Color Display
• Power Supply: Dual Toroidal Transformers (Digital/Analog Independent)
• Power Consumption: Under 30 W
• Dimensions: 320 x 51.5 x 280.9 mm (12.6 x 2.03 x 11.06 in) (W x H x D)
• Weight: 3.81 kg (8.4 lbs)

What's Included

• SMSL VMV D3R Flagship Desktop DAC
• AC Power Cable