Take the 2-minute tour ×
Sound Design Stack Exchange is a question and answer site for sound engineers, producers, editors, and enthusiasts. It's 100% free, no registration required.

I need a DAC to convert from optical audio (coming from Apple TV) to a 3.5 analog jack.

I was thinking to buy something like this, but I'm wondering if:

1- can I easily find an adapter from 2 RCA outputs to a 3.5mm jack ?

2- Is the final audio quality lower after the d-a conversion and the RCA-3.5 adapter ?

thanks

share|improve this question
add comment

migrated from avp.stackexchange.com Jan 24 at 12:01

This question came from our site for engineers, producers, editors, and enthusiasts spanning the fields of video, and media creation.

1 Answer

up vote 4 down vote accepted

A DAC converter like the one linked, will look through the stream of bits coming from the optical/toslink connection and create an analog bit stream from them. The quality associated with this box will most likely result from the power output (SNR) of the actual DAC chip itself, this will be the quality limiting factor since the other connection is purely analog. An RCA to 3.5mm can be easily acquired from many electronics retailers. i.e. RadioShack Y adapter

share|improve this answer
    
Ok, are we talking about a perceptible audio quality downgrade? I mean, for amatorial use, such as listening music at home –  Patrick Jul 23 '12 at 20:54
1  
I'm sure that this product would be more than adequate for a home listening setup. –  JMFR Jul 24 '12 at 13:12
    
Sorry, one more question. Let's say I have the DAC and RCA to 3.5 adaptor and I want to listen to the music on my headphones. Do I need an amplifier or does it work ? –  Patrick Jul 31 '12 at 18:02
    
Most Likely you will need to amplify this signal. I imagine that this device is build to connect optical signals to an older receiver that does not have optical inputs. The signal (RCA) that a receiver is expecting will be very different than a signal that you would send to a pair of headphones. (Also you may not be able to adjust the volume) –  JMFR Aug 1 '12 at 15:05
add comment

Your Answer

 
discard

By posting your answer, you agree to the privacy policy and terms of service.