Contributor II

Question

Using DAC to take sound from Optical out to Analog in on connect 120 (old school)

Forum|Forum|5 years ago
November 3, 2020
12 replies
491 views

I have been listening to my TV (15 years old) via a connect 120 (legacy) to HiFi speakers for over 10 years with no problems, but now I would like to buy a new TV. No models now appear to have analog out so I am considering using a DAC between the TV Optical and the connect amp.

I suspect that I will suffer from audio delay which I will not be able to cure and which is not acceptable.

Has anyone else used this setup with success? I would love to know before lashing out on a new TV.

Regards,

John

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K

Kumar

There will not be any delay over what already exists when you use the Connect Amp - as I do - and what does not trouble you at this time.

But I solved a similar problem by using the headphone socket on the TV - works well enough that I don't need to get the DAC I thought I would need. Plus, it is volume controlled so the TV remote also controls sound levels via the speakers wired to the Connect Amp.

K

Kumar

By the way, I am using a cheap TV just now that does not have analog audio out jacks - are you sure that the usual ones no longer have these?

L

Lord GnomeAuthor

Contributor II

Hi Kumar,

Thanks for your reply,

I have just tried headphone socket from second TV to a play5 and while the sound is ok there is an unacceptable lipsinc problem.

I had assumed that the new optical technology would be an improvement on headphone out, but I am not highly technical so I don't know.

Are you using a TV with digital out (optical) to a legacy connect amp with HiFi speakers using a DAC box in between?

Regards,

John

airforceteacher

Headliner I

I’ve done exactly this, using a $20-30 DAC from Best Buy, and the delay was not enough to bother me. YMMV, of course.

K

Kumar

John,

The lipsync issue has been with you for the last ten years! I am therefore surprised to see you say it is intrusive with the 5. Try to switch the 5 into what is being fed to the 120 using the different cable needed and you should see no difference in lip sync.

I am using the headphone out of the TV to the connect amp analog input and have no trouble.

K

Kumar

Also, the lipsync issue potential resides in how any Sonos unit works and is not affected by the presence or absence of a DAC upstream.

K

Kumar

I also use another tv that has analog audio line out jacks, wired to a Sonos connect. Again, even when carefully watching music videos with strumming guitars and singers, any lipsync issue is too small to be intrusive.

J

jtkeep

Enthusiast II

I use a hdmi to analogue adaptor from tv hdmi arc to adaptor

rca phono plugs to your connect amp works just fine and no

sound delay.

J

jtkeep

Enthusiast II

One more thing if you use a hdmi arc and buy a LG smart tv you

can still use your tv remote to adjust sound volume if you use tv

optical out you cant adjust sound with your tv remote.