SKU: 43429689482

SMSL M400 DAC+ SP400 HPA+ XLR Cable Stack

Sale price$670.49 Regular price$744.99
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Description

SMSL M400 DAC+ SP400 HPA+ XLR Cable StackPackage Contents: 1SMSL M400 MQA DAC ( more details here ) 1SMSL SP400 Amp ( more details here ) 1 Gustard 1m XLR Cable ( more details here ) or 1SKW OCC XLR Cable ( more details here SMSL M400 MQA DAC AK4499 DSD Decoder DSD512 32bit 768kHz Pre Amplifier Features of SMSL M400: >Full MQA Decoding. >Industry Leading High Performance AK4499 DAC Chip. >THD+N: 0. 000058%( 124dB). >Dynamic Range: 131dB. >Signal to Noise Ratio: 131dB. >Second Generation 16

Package Contents: 

  • 1×SMSL M400 MQA DAC ( more details here  )
  • 1×SMSL SP400 Amp ( more details here )
  • 1× Gustard 1m XLR Cable ( more details here  )  or 1×SKW OCC XLR Cable  (  more details here  )   

SMSL M400 MQA DAC AK4499 DSD Decoder DSD512 32bit 768kHz Pre-Amplifier

 

Features of SMSL M400:

>Full MQA Decoding.

>Industry Leading High-Performance AK4499 DAC Chip.

>THD+N: 0.000058%(-124dB).

>Dynamic Range: 131dB.

>Signal to Noise Ratio: 131dB.

>Second Generation 16-core XMOS XU216 USB Receiver.

>PCM Decoding up to 32-Bit/768kHz, DSD up to DSD512 natively.

>Dual Independent ACCUSILICON crystal oscillators.

>ALTERA’s High-Speed Clock to process clock and Jitter free conversion.

>Powerful OPAMP’s, featuring OPA1611 and OPA1612.

>Ultra Low Noise Floor.

>Multiple Input Supported featuring USB, Optical, Co-axial, IIS, and Bluetooth.

>Latest Bluetooth V5.0 Support with Ultra Hi-Res codecs including UAT, LDAC, AptX HD, and more.

>LCD Color Display.

>Fully Operational Remote Control.

>Dual Output Ports including Fully Balanced XLR Output, and Unbalanced RCA Output.

>Power Consumption: 5W.

SMSL released their latest flagship-level Desktop DAC, the SMSL M400. It features industry-leading flagship DAC chip AK4499 paired with high-quality chips to provide the users an unmatched crisp sound decoding output.

Industry Leading Chipset:-

SMSL M400 features an industry-leading flagship AKM DAC, AK4499 paired with second-generation 16-core XMOS XU216 USB receiver chip and dual independent crystal oscillators. The chipset provides a distortion-free and high-quality sound output rich with details. The M400 is able to decode PCM up to 32-Bit/768kHz, and DSD up to DSD512 natively. Apart from a powerful DAC and USB chip, it also features powerful OPA amp’s, OPA1611 and OPA1612.

Unmatched Sound Decoding Quality:-

SMSL M400 has an ultra-low distortion rating of 0.000058%(-124dB), high dynamic range and signal to noise ratio of 131dB. The DAC provides an unmatched sound decoding quality. The output has a very clean background completely noise and distortion-free.

Multiple Input/Output Ports:-

SMSL M400 features multiple input ports. The device features USB, Optical, Coaxial, IIS, and Bluetooth Input modes. The Bluetooth Input supports all the latest Hi-res codecs featuring UAT, LDAC, AptX HD, and More. UAT is the latest high-quality codec developed by HiBy, it features files with 24-Bit/192kHz bitrate and offers the best sound quality streaming over wireless connectivity. The device features two output options, one fully balanced XLR output, and one RCA unbalanced output.

PreAMP Mode with Variable Volume Support:-

SMSL M400 features Preamp mode, you can use the M400 to provide a clean decoded audio signal further to an amplifier in your chain. The PreAMP mode features two modes, fixed volume, and variable volume.

Digital Audio Filters:-

SMSL features six different PCM decoding filters including Slow Roll-off, Sharp Roll-off, Short Sharp Roll-off, and more. The device also features two DSD filters, narrow and wide. Users can choose between these filters with ease using the remote control included in the package.

LCD Display and Fully Operational Remote Control:-

SMSL M400 features an LCD color display on the front that shows basic information like active input type, active bit-rate, and output volume levels. The device is fully operational using the remote control included in the package.

 

SMSL SP400 THX Headphone Amplifier

 

Features:-

>THX AAA-888 Amplification Circuit.

>High-Performance Audio Circuit.

>Balanced Stereo Headphone Output.

>Balanced Pre-Amp Out.

>High-Precision and Low-Noise 256 Level Relay Volume Control.

>3-Level Gain Switch(Low, Medium, High).

>High-Efficiency Ultra-Low-Noise Power Supply.

>Premium Japanese Headphone Sockets.

>1.9” LCD Display.

Technical Specifications:-

>Output Power(Balanced): 12Wx2 @ 16Ω, 6Wx2  @ 32Ω, 880mWx2 @ 300Ω, 440mWx2 @ 600Ω.

>Output Power(Unbalanced): 6Wx2 @ 16Ω, 3Wx2 @ 32Ω, 440mWx2 @ 300Ω, 220mWx2 @ 600Ω.

>Signal to Noise Ratio: 133dB, A-weighted.

>Output Noise: 1.9uV, A-weighted.

>THD+N: -123dB, 0.00007%(1kHz, 32Ω).

>THD+N: -117dB, 0.00013%(20Hz-20kHz, 32Ω, -3dB).

>THD: <-125dB, 0.00006%.

>Input Impedance: 47kΩ.

>Output Impedance: Near 0Ω.

>Frequency Response Range: 0.1Hz-500kHz(-3dB).

>Power Supply Voltage: AC100-240V, 50-60Hz.

>Power Consumption(EN60065): <40W.

>Power Consumption in Standby Mode: <0.1W.

>Dimensions: 225x210x43(mm).

>Packing Size: 354x276x80(mm).

>Weight: 1330gms.

SMSL SP400 is the latest desktop amplifier from SMSL housing a powerful THX AAA-888 amplification circuit to deliver the best sound experience to its users.

THX AAA-888 Amplification Circuit:-

Equipped with a powerful THX AAA-888 amplification circuit, the SP400 produces a super clean sound output with ultra-low distortion. The THX AAA-888 is a linear double amplifier circuit with patented feed-forward error correction technology. It effectively reduces the distortion caused by traditional amplifier circuits and produces a lively distortion-free sound output.

Quality Comes With High-Quality Components:-

In the pursuit to present the world with a brilliant performing amplifier system, SMSL has equipped the SP400 with many premium components. The audio motherboard inside the SP400 uses many 0.1% high-precision low-temperature drift resistor. The PCB uses a 6-layered gold circuit board. Two customized THX power modules provide a stable and reliable power output guarantee.

Precise Volume Adjustment:-

Equipped with multiple premium volume relays inside the audio circuit, the SMSL SP400 offers a very precise 256-level volume adjustment. It allows the users to precisely adjust the output level even with a sensitive pair of headphones and earphones.

Elegant & Powerful:-

Made with sandblasted aluminum chassis using the high-precision CNC machining process, the SP400 has a classy elegant look. It holds supreme power capabilities to power up your most demanding cans with ease. With power as high as 12Wx2 at 16Ω of load(Balanced connection), it can power your most demanding of the cans with ease.

Audiophile-Grade Power Supply:-

Equipped with two units of customized 24W high-efficiency low-noise power supply units, it guarantees an efficient supply to power to all of the audio components resulting in a super clean output. A bad power supply can introduce electrical noise in the output, but that's not the case with the SMSL SP400. You get the best sound experience with the SMSL SP400 in your audio chain.

 

 

 

 
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
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  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 43429689482

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Gail
Phoenix, US
★★★★★ 5
The answer to calloused feet.
Color: Pink & Beige, Size: Medium/Large(fits size 8 to 11)
If you have dry callused soles, these are your answer. All my calluses left and my feet were very soft. They should not be walked in unless you are very, very careful as you will slip and fall. I stopped using them for a while and all my problem calluses are back, even when I use lotion at night. They tell you not to sleep in them, I don't know why. I do put these on at night and end up taking them off later as they're not comfortable to sleep in.
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Reviewed in the United States on April 28, 2026
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Angela A Mathis
Cuba, US
★★★★★ 5
Good Product
Color: Pink & Beige, Size: Medium/Large(fits size 8 to 11)
These socks are good for moistening. Durability is awesome Fit true to size. Traction could be a little better. The sock are very comfortable
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Reviewed in the United States on April 23, 2026
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Tj
Omaha, US
★★★★★ 4
Slippery when wet!!!
Color: Pink & Beige, Size: Medium/Large(fits size 8 to 11)
“These moisturizing slippers are actually really comfortable and feel great on the feet. They’re soft, cozy, and do help moisturize while you wear them. I also think they’re a good value for the money. The only downside is that once your feet get moisturized, they can get slippery inside the slippers, so I wouldn’t recommend walking around too much in them. Better for relaxing and letting your feet soak up the moisture than for being up and moving around.”
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Reviewed in the United States on May 26, 2026
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J. Randle
Belleville, US
★★★★★ 5
Love them
Color: Pink & Beige, Size: Medium/Large(fits size 8 to 11)
I wear a size 11.5 in ladies shoe and these just barely fit. Butttt after I put lotion on my feet and slipped these on and left them on for about 30 mins. It left my feet really soft! They work great as intended. Would buy again
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Vonda Kioultzopoulos
Lexington, US
★★★★★ 3
Effective but may be uncomfortable
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I have eczema on my feet and use a prescription cream that I leave on overnight. I often have a problem sleeping in socks but the silicone feels cool on my feet. The only drawback I have is the opening of the socks feel very tight around my ankles making them uncomfortable on me. I wish the opening was a bit more flexible.
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