Luxman DA-07X

Luxman DA-07X Digital to Analog Converter

Luxman DA-07X is a dual mono USB DAC built for transparent conversion and low noise system integration. It uses two ROHM BD34301EKV converters in separate left and right channels, an ultra low phase noise master clock, short balanced signal paths, and local regulation to keep jitter and interference down. USB supports PCM up to 768 kHz at 32 bit and DSD up to 22.5 MHz. Coaxial, optical, and AES EBU accept up to 192 kHz. MQA is fully decoded inside the unit with selectable PCM and DSD filters.

Design and Engineering

Converter architecture

Two ROHM BD34301EKV chips operate in dual mono. Left and right channels are physically and electrically separated to improve crosstalk and channel balance. Post conversion stages use low noise devices and short routing to maintain linearity through the analog outputs.

Clocking and power

A low jitter master clock drives the conversion domain. Power is segmented with multiple regulated rails and OI core transformers allocated to digital, analog, and control sections to reduce coupling through the supply. Ground domains are arranged to limit current loops between digital and analog blocks.

Analog output stages

Balanced and unbalanced output paths are kept symmetrical with consistent impedance and level. The topology is voiced for wide bandwidth and stable load drive so the DAC can feed long cables or downstream preamps without added coloration.

Chassis and EMI control

A rigid aluminum enclosure, shielding, and thoughtful board orientation restrict radiated and conducted noise. Connector placement shortens runs from the digital inputs to the conversion and output sections.

Connectivity and Control

Digital inputs and formats

USB type B handles high rate PCM and DSD. AES EBU, coaxial, and optical inputs accept PCM up to 192 kHz. The front panel provides clear input selection and lock indication so format changes are easy to confirm at the rack.

Output options and filters

Balanced XLR and unbalanced RCA outputs are provided at a fixed reference level. The menu allows selection among PCM reconstruction filters and DSD roll off choices. MQA decoding can be enabled for MQA files over USB and for MQA CD or streams passed through a compatible digital input.

Integration

Use the balanced outputs for long interconnect runs or when the system is electrically noisy. The unbalanced outputs serve integrated amplifiers and preamps that prefer RCA. Triggering is not required and the DAC wakes cleanly with the selected input.

Everyday Usability

Front panel controls make input changes and filter selection straightforward. Status indicators show sample rate and lock state at a glance. Power up and input switching are quiet. Once set, the unit retains its preferences so daily operation is limited to selecting the source and pressing play.

Placement and Setup Tips

• Use a quality USB cable for high rate PCM and DSD and keep the run as short as practical
• For computer sources, install the current USB driver and set the output to exclusive mode to avoid OS resampling
• Keep digital cables and AC cords from running parallel to analog interconnects
• Place the DAC on a ventilated shelf and avoid stacking on heat producing components

What Distinguishes It in the Lineup

DA 07X combines dual ROHM converters, full MQA decoding, and very high rate USB support with a segmented power scheme that isolates digital and analog blocks. It is focused on conversion quality and clean system integration rather than including network or disc functions in the same chassis.

Who It Is For

Owners who already have a preferred transport or streamer and want a high capability Luxman DAC with wide format support, balanced and unbalanced outputs, and simple day to day operation in a reference two channel system.

In the Box

Digital to analog converter, power cable, owner’s manual, warranty card.