Two possibilities: which way to go? - AVS Forum

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herzzreh's Avatar herzzreh
09:10 AM Liked: 10
post #1 of 10
03-21-2013 | Posts: 84
Joined: Sep 2005
Let's not discuss brands themselves but rather the setups... I have Selah SSRs as speakers and Emotiva amp.

Possiblity one:

Turntable into Parasound ZPhonoUSB into Emotiva XDA2 DAC via USB cable into the amp
CD player into XDA2 into the amp
Squeezebox into XDA2 into the amp

Possibility two:

Turntable into Emotiva USP1 preamp into the amp via analog
CD player into the USP1 via analog then into amp
Squeezebox into USP1 via analog then into amp


What would you do and why? Looking into squeezing most SQ out (naturally).
A9X-308's Avatar A9X-308
11:41 AM Liked: 115
post #2 of 10
03-21-2013 | Posts: 5,467
Joined: Mar 2008
2. I'm seeing no advantage to the additional A/D/A stages in 1.
herzzreh's Avatar herzzreh
11:57 AM Liked: 10
post #3 of 10
03-21-2013 | Posts: 84
Joined: Sep 2005
In 1, every output would be digital either via USB, optical or coax...
arnyk's Avatar arnyk
12:18 PM Liked: 1178
post #4 of 10
03-21-2013 | Posts: 14,387
Joined: Oct 2002
Quote:
Originally Posted by herzzreh View Post

In 1, every output would be digital either via USB, optical or coax...

Don't see any benefit to that. If you were using a digital processor with useful features like bass management or system optimization implemented digitally, then there would be some obvious advantages. As things sit, you're just buying two DACs for every one that you absolutely need.
A9X-308's Avatar A9X-308
12:24 PM Liked: 115
post #5 of 10
03-21-2013 | Posts: 5,467
Joined: Mar 2008
Quote:
Originally Posted by herzzreh View Post

In 1, every output would be digital either via USB, optical or coax...
No, every output into the power amp will be analogue. As the TT output is already analogue, what is the advantage in converting it to digital and then back to analogue?
commsysman's Avatar commsysman
10:02 AM Liked: 258
post #6 of 10
03-24-2013 | Posts: 5,298
Joined: Dec 2007
Don't forget that you need a phono preamp stage with RIAA equalization, as the raw output from the turntable/cartridge is not a usable signal.

The sound on a record has the bass severely de-emphasizsed and the treble boosted according to the RIAA curve, and is not listenable as is, even if amplified enough.
herzzreh's Avatar herzzreh
06:51 PM Liked: 10
post #7 of 10
04-24-2013 | Posts: 84
Joined: Sep 2005
Quote:
Originally Posted by A9X-308 View Post

No, every output into the power amp will be analogue. As the TT output is already analogue, what is the advantage in converting it to digital and then back to analogue?

True, but won't I have to rely on good DA conversion in the source then? For example, Squeezebox sounds fine, has a good converter but the old DVD player I use as CD player has crappy DA converter...
A9X-308's Avatar A9X-308
07:32 AM Liked: 115
post #8 of 10
04-25-2013 | Posts: 5,467
Joined: Mar 2008
^^ How do you know the DVDP has a poor DAC? Measurements or hearsay?
aquaphile's Avatar aquaphile
08:09 AM Liked: 13
post #9 of 10
04-25-2013 | Posts: 633
Joined: Jan 2009
Quote:
Originally Posted by herzzreh View Post


Turntable into Parasound ZPhonoUSB into Emotiva XDA2 DAC via USB cable into the amp

I hate to echo the masses, but this has me scratching my head as well confused.gif

Unless you plan on using the phono pre's USB out to transfer to your PC/make digital copies, just use the analog out on the pre.... or any other phono pre you may choose.

Also, without trying starting a huge debate here, I thought the point of a higher-end phono pre is to "preserve" the TT's analog signal. Going to digital back to analog would (probably?) void out any benefits/sound quality from your phono amp.
commsysman's Avatar commsysman
08:45 AM Liked: 258
post #10 of 10
04-25-2013 | Posts: 5,298
Joined: Dec 2007
Possibilty #1 makes no sense at all to me.

Possibility #2 makes sense.

The Emotiva preamp has a built-in phono stage, so your turntable will be able to plug right into it.

Going through multiple devices and conversions is simply a ridiculous idea, and will result in a loss of sound quality.

Keep it simple and direct.
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