Join the Waitlist to be notified of launch!

Dang it.

Unfortunately, the Apos SMSL-400 Ensemble has reached its end of life. Luckily, we have a great replacement in the TOPPING-90 Ensemble, which is similarly priced.

Apos Ensembles are equipment bundles that have been specially curated by our team of audio professionals. Just as an ensemble refers to a group of musicians playing together, each of our ensembles is a coordinated group of equipment that we’ve brought together to form a superior listening experience. 

Meet the SMSL-400 Ensemble

The stars of the SMSL-400 Ensemble are the SMSL M400 DAC and the SMSL SP400 headphone amp, an MQA-rendering duo that delivers up to 32-bit music with crystal clarity. An Apos Flow XLR cable connects them together with pure-copper clarity.

The SMSL-400 Ensemble includes:

• DAC: SMSL M400 MQA DAC
• Headphone Amp: SMSL SP400 THX AAA-888 Headphone Amp
• Interconnect: Apos Flow XLR Cable

Spec Summary

Note: For full specs, please visit the individual product pages.

SMSL M400 DAC

• THX AAA-888 Technology
• Ultra-Compact design - great for desktop
• Toggle switch for operation, input selection, and gain control
• Balanced stereo headphone output
• Balanced stereo line input
• High precision resistors for temperature stability
• Pop-less design with high quality relays
• Selected high precision low-distortion volume potentiometer
• Full protection with DC, over-voltage, over-current, and short-circuit
• Thermal protection on headphone amplifier
• High-efficiency ultra-low noise power supply
• Output Power: 6W x 2 (16ohm), 3W x 2 (32ohm), 440mW x 2 (300ohm), 220mW x 2 (600ohm)
• SNR: 130dB, A-Weighted
• Output Noise: 2.8uV, A-Weighted
• THD+N: -122dB, 0.00007% (1kHz, 32ohm)
• THD+N: -117dB, 0.00013% (20 - 20kHz, 32ohm, -3dB)

SMSL SP400 THX AAA-888 Headphone Amp

• THXAAA-888 Headphone Amplifier with THX AAA Technology
• Ultra-compact design
• Balanced stereo headphone output
• Pre-amplifier application
• Balanced stereo line input
• Full function remote
• 1.9” LCD display
• SNR: 133dB, A-weighted
• Output noise: 1.9uV, A-weighted
• THD+N: -123dB, 0.00007% (1kHz, 32Ω)
• THD+N: -117dB, 0.00013% (20-20kHz, 32Ω, -3dB)

• Imported Japanese copper conductor
• 4-core audio wire
• A copper lattice braid with 94% density effectively shields the conductor from electromagnetic interference
• Each core made of 60pcs of 0.08mm copper wire
• Neutrik terminations