Need help?Do you have a question about the S.M.S.L DO400 and is the answer not in the manual?
Specifications are for reference and subject to change without notice.
Offers product quality with 7-day return/exchange and 1-year free warranty for normal use.
Purchase date confirmed by invoice, receipt, or online transaction screenshot.
Warranty void for damage from improper use, self-tampering, or unauthorized parts.
The warranty repair process involves sending the unit back to the company.
Supports MQA decoding and MQA-CD playback for high-resolution audio.
Features 3rd gen XMOS XU-316 for high-resolution PCM and DSD support.
Utilizes ESS ES9039MSPRO flagship DAC chip with built-in MQA hardware decoding.
Delivers high output power: 6W at 16 ohm and 3W at 32 ohm.
Features a fully balanced design with a 4-way ultra-low distortion PLFC circuit.
Offers three headphone output connectors (4-XLR, 4.4mm, 6.35mm) for diverse needs.
Special discrete linear regulated power supplies provide low-noise power to analog circuits.
Most input ports support DSD transmission, including DoP64 for digital inputs.
Features firmware upgrade capability for system and USB components.
Built-in low-noise power processing enhances efficiency and reduces consumption.
Equipped with Qualcomm's latest Bluetooth 5.1 chip supporting LDAC, APTX/HD, SBC.
Features high-quality gold-plated input and output connection terminals.
Certified by Japan Audio Society (JAS) for Hi-Res audio.
Comes with a remote control for full functionality.
Lists all supported input/output formats and connection types.
Specifies line output amplitude for XLR and RCA connections.
Details headphone output power at different impedance levels (16, 32, 300, 600 ohm).
Provides Total Harmonic Distortion + Noise figures for various outputs.
Lists dynamic range specifications for XLR, RCA, and headphone outputs.
Specifies Signal-to-Noise Ratio for XLR, RCA, and headphone outputs.
Details output impedance for line out and headphone outputs.
Indicates high gain levels for balanced and unbalanced headphone outputs.
Covers USB transmission mode and OS compatibility requirements.
Covers USB transmission mode and OS compatibility requirements.
Details MQA decoding support and sampling rate/bit depth for USB and digital inputs.
Details MQA decoding support and sampling rate/bit depth for USB and digital inputs.
Lists Bluetooth version and supported audio codecs.
Specifies power consumption and standby power usage.
Specifies power consumption and standby power usage.
Provides the physical dimensions and weight of the unit.
Provides the physical dimensions and weight of the unit.
Replace battery with a new one if the remote is unresponsive.
Remove batteries if the remote will not be used for an extended period.
Dispose of used batteries according to local environmental regulations.
The remote controller requires two AAA batteries.
Identifies front panel components including display, function knob, and headphone outputs.
Details rear panel connections such as USB, digital inputs, and power switch.
Provides a numbered key to identify each component on the front and rear panels.
Lists all items included in the DO400 package, such as the unit, cables, and manual.
Lists all available input sources for the device.
Describes the different output modes available for audio signals.
Explains the different PCM digital filter options for audio processing.
Details the available DSD digital filter cutoff frequencies.
Explains the Pre Mode function for controlling output volume (Variable or Fixed).
Describes the Headphone Amplifier (HPA) gain settings (Low or High).
Introduces the nine selectable sound color modes achieved via DSP processing.
Explains DPLL settings for balancing anti-clock jitter and input tolerance.
Details the functions assigned to the FN key for various controls.
Explains the I2S interface modes (Normal and Reversed) for compatibility.
Describes the audio phase settings (Normal and Inverted) for connections.
Covers the dimmer function for automatic screen turn-off.
Details the display brightness adjustment levels (1-6).
Explains how to reset system settings, including Bluetooth pairing.
Introduces MQA technology for high-resolution audio and its benefits.
Guides on playing MQA files, including software requirements and volume settings.
Provides important notes for playing MQA-CDs correctly.
To Next Page
General
