When I hook it up to play there is music for a second or two and then no music for a second or two. This repeats itself over and over again. Ideas?

I do not have that problem with this device, HOWEVER, I do have that very same problem with another SMSL dac ( M500 MKII), and I have not been able to figure out why this happens. I do not use Windows, and I only play wav files with Linux based software, and Linux operating system. Make your own conclusions.

how come the output voltage is so low when I connect it to the optical on my TV? I thought the output was suppose to be 2 Vrms.

only tried whit coaxial in rca out

Without a separate power input, how much faster does the battery drain on the cell phone?

It consumes very low energy. I don't use it via USB. I haven't tested it.

I'd like to listen to one of those new MQA-encoded CDs. Will the optical output of my legacy CD player pass the MQA-encoded signal to this SMSL?

Yes, because the SMSL is reading, converting the signal and your legacy CD player is functioning as a transport only.

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S.M.S.L SU-1 MQA MQA-CD Audio Decoder AK4493S XU316 768kHz/32Bit DSD512 Hi-Res DAC

Product ID: 705280939

Details

Brand
Fanmusic
Interface type
Coaxial USB
Mounting type
Coaxial Plug
Number of channels
2
Number of pins
8

⚡USB asynchronous transmission up to 768kHz/32Bit & DSD512

🎧AKM AK4493S DAC chip, ultra-low distortion 0.00013%

🔊Supports MQA & MQA-CD for studio-quality sound

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S/.715

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Sold byAmazon PeruDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🎶 Elevate your audio game—because your ears deserve the studio experience.

MQA MQA CD CERTIFIED - Unlock authentic high-res sound from your digital and CD sources, just like in the recording studio.
COMPACT POWERHOUSE DESIGN - Sleek, lightweight form factor fits anywhere—upgrade your setup without the bulk or noise.
STUDIO GRADE SOUND CLARITY - Experience pristine audio with distortion below 0.00013%, bringing every note to life.
UNIVERSAL USB COMPATIBILITY - Seamlessly connects with Windows, Mac, Linux, Android, and iOS devices for effortless streaming.
ENERGY EFFICIENT READY TO GO - Consumes less than 5W with standby under 0.1W, delivering premium sound without the premium power bill.

The S.M.S.L SU-1 is a high-resolution DAC featuring the latest AKM AK4493S chip, delivering ultra-low distortion and dynamic range. It supports MQA and MQA-CD decoding to restore studio-quality sound from digital and CD sources. Compatible with a wide range of devices via USB, optical, and coaxial inputs, it handles PCM up to 768kHz/32Bit and DSD512. Compact and energy-efficient, the SU-1 transforms your audio setup with professional-grade clarity and detail.

Specifications

ASIN	B0C1Y7C9HH
Best Sellers Rank	#30,405 in Electronics ( See Top 100 in Electronics ) #27 in Audio/Video Receivers & Amplifiers
Brand Name	Fanmusic
Compatible Devices	Windows (7/8/8.1/10/11), Mac OS X (10.6+), Linux, Android, iOS, CD Players (Optical/Coaxial)
Customer Reviews	4.4 4.4 out of 5 stars (1,661)
Included Components	SU-1
Interface	Coaxial, Optical, USB
Item Dimensions L x W	9.6L x 7.8W centimeters
Item Weight	195 Grams
Manufacturer	S.M.S.L
Material Type	Copper
Model	SU-1
Mounting Type	Coaxial,Plug Mount
Number of Channels	2
Number of Pins	8
Part Number	SU-1
Smart Home Compatibility	Not Smart Home Compatible
Unit Count	1 Count
Warranty Description	1 year

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S/.715

Duties & taxes included

In stock

Sold byAmazon PeruDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Peru.

Secure transaction

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TrustScore 4.5 | 7,300+ reviews

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