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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SMSL SU-1 MQA MQA-CDオーディオデコーダー AK4493S XU316 768kHz/32Bit DSD512 ハイレゾDAC

Product ID: 730328152

Details

Brand
Fanmusic
Interface Type
USB
Number of Channels
2
Number of Pins
4
Product Dimensions
9.6L x 7.8W cm

⚡Supports 768kHz/32Bit PCM & DSD512 high-res audio

🎧AK4493S DAC chip with ultra-low distortion 0.00013%

🔗Universal USB/Optical/Coaxial input compatibility

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AED 438

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Description

🎶 Elevate your audio game with precision-engineered high-res clarity!

COMPACT POWERHOUSE - Sleek 96x27x78mm design with ultra-low power consumption (<5W)
IMMERSIVE 3 D SOUNDSTAGE - MQA decoding eliminates jitter for studio-quality spatial audio
PLUG PLAY VERSATILITY - Compatible with Windows, Mac, Linux, Android, and iOS devices
SEAMLESS HIGH RES PLAYBACK - Handles PCM up to 768kHz and DSD512 for audiophile-grade clarity
AUDIOPHILE APPROVED PRECISION - 121dB dynamic range and 0.00013% THD+N for crystal-clear sound

The SMSL SU-1 is a premium MQA-CD audio decoder featuring the latest AK4493S DAC chip, delivering ultra-low distortion and a dynamic range of 121dB. It supports high-resolution audio up to 768kHz/32Bit PCM and DSD512, ensuring studio-quality playback. Compatible with USB, optical, and coaxial inputs, it works seamlessly across Windows, Mac, Linux, Android, and iOS platforms. Its compact design and low power consumption make it the perfect upgrade for discerning audiophiles seeking immersive 3D sound and flawless digital-to-analog conversion.

Specifications

ASIN	B0C1Y7C9HH
Amazon Bestseller	#35,866 in Electronics ( See Top 100 in Electronics ) #29 in Digital-Analog Converters
Brand Name	Fanmusic
Compatible Devices	Earphones, Headphones both
Customer Reviews	4.3 4.3 out of 5 stars (1,676)
Interface	USB
Item Dimensions L x W	9.6L x 7.8W cm
Item Weight	195 Grams
Manufacturer	SMSL
Model	SU-1
Number of Channels	2
Number of Pins	4
Part Number	SU-1
Warranty Description	1 Year Mecha Warranty

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