PC to Stereo System Interface

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I regularly watch and listen to music posted on youtube through my stereo setup. I currently use the "headphone" output of the PC with a 1/8" stereo to dual RCA adapter and into the AUX connection of my stereo preamp which feeds my power amp and speakers. Can someone recommend a simple interface, 2-channels only, that would provide better sound than what is coming out of the headphone jack? I would like to keep the cost under $150.00. Thanks
 

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Right now I'm listening to spotify on my laptop with a USB C audio dongle from Apple. Sounds flawless to me at 24bit, 48kHz.
If you're using the headphone output port of your PC this is a drop-in replacement, just a lot better. Same headphone port, same output voltage. You probably won't even have to adjust the volume control on your amp.

THD+N is slightly above 0.001%, dynamic range is 113dB, as tested by Audio Science Review. It's €10. Should be the same in US $. Just get one from an online retailer with a decent return policy and give it a try. Honestly, for youtube, anything beyond that is overkill. And even if you dislike it and forget to return it, you're only out $10.
 
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I have never given DAC's much thought, most of my listening is from LP, CD and FM. There must be some advantages of a DAC such as the Audioengine D-1 or ZEN over a low cost dongle suggested by the previous poster.

What would be some of the applications beyond youtube that would justify spending $100-200 for a DAC ?
 
There must be some advantages of a DAC such as the Audioengine D-1 or ZEN over a low cost dongle suggested by the previous poster.
Apple has a very modern custom chip made by cirrus logic. It contains a USB interface, a DAC and a headphone amplifier / line driver. All those components are separate in most DACs. In the Apple dongle everything is contained on one miniscule chip, manufactured by the millions. That's why it's so cheap.

A more expensive DAC can have a higher output voltage and play higher sampling rates.
What would be some of the applications beyond youtube that would justify spending $100-200 for a DAC ?
Running an equalizer that needs a lot of headroom would be one, the other would be requiring a higher output voltage. Usually one leads to the other.

Bear in mind that the specs of the Apple DAC already go beyond the limits of the CD medium. CDs have a dynamic range of 96 dB. The dongle has a signal to noise ratio of 99 dB.

https://www.audiosciencereview.com/...pple-vs-google-usb-c-headphone-adapters.5541/
 
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Apple has a very modern custom chip made by cirrus logic. It contains a USB interface, a DAC and a headphone amplifier / line driver. All those components are separate in most DACs. In the Apple dongle everything is contained on one miniscule chip, manufactured by the millions. That's why it's so cheap.

A more expensive DAC can have a higher output voltage and play higher sampling rates.

Running an equalizer that needs a lot of headroom would be one, the other would be requiring a higher output voltage. Usually one leads to the other.

Bear in mind that the specs of the Apple DAC already go beyond the limits of the CD medium. CDs have a dynamic range of 96 dB. The dongle has a signal to noise ratio of 99 dB.

https://www.audiosciencereview.com/...pple-vs-google-usb-c-headphone-adapters.5541/
Thank you.

Is all of this true when using the Apple device as a line level input into a preamp/amp/speakers?