Turntable-->phono-->Art DiO-->Panny XR25 Results

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Mathew_M

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Turntable-->phono-->Art DiO-->Panny XR25 Results
« on: 25 Jan 2004, 07:00 am »
I posted in another thread about almost blowing up my speakers with this combination.  I attempted again tonight but when I saw the woofers on my speakers throbbing at even minute volume levels I decided to end the experiment.  It seems that the digital output on the DiO is somehow over loading the Panny.  I mean the woofers should not be throbbing and fluttering if there's hardly any audio coming out of them, right?  Anybody have any clues as to this phenomenon?

What I heard before was quite good.  The DiO seems to have much better A/D conversion than the Panny.   Playing back the vinyl via an AI tube pre and the Art into the digital coax of the Panny yielded a very clear and dynamic sound similar in quality to the CD playback but with the extra air and musicality that vinyl and tubes supply.  It was a bit synthetic sounding which is to be expected because of the A/D conversion but it was very close otherwise.  I'd like to mess around with it more but I don't want to damage my gear.

The cool thing is that Panny shows the signal frequencies coming from the Art which makes me think that this combo can work....

JoshK

Turntable-->phono-->Art DiO-->Panny XR25 Results
« Reply #1 on: 25 Jan 2004, 06:41 pm »
It probably isn't that. Does your phono have a subsonic filter?  I bet you are picking up low freq vibes or emi and applifying them.  Try out your subsonic filter and see if that doesn't help.

Mathew_M

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Turntable-->phono-->Art DiO-->Panny XR25 Results
« Reply #2 on: 25 Jan 2004, 07:09 pm »
I too thought it might be the subsonic filter and my AI pre has a setting for this.  It didn't work.  I also plugged the analog out from my CDP into the DIO and got the same results.  The woofers will throb even when the source is not playing.  The amount of throbbing is consistent with volume level on the Panny, the higher I go the heavier the throbbing :o It's kind of creepy to see without any audio coming out.  This is only with the DIO.  Maybe it needs some tube-a-lator  :wink:

doug s.

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Turntable-->phono-->Art DiO-->Panny XR25 Results
« Reply #3 on: 26 Jan 2004, 03:54 am »
the di/o outputs 7v; most home gear expects to see ~2v...  get a couple resistors, & make an attenuator.  search the archives of the yahoo diomods site, or the audio asylum - lotsa info on how to do it.  sorry, i don't have it handy...  

or, buy one of those rothwell ready-to-go in-line attenuators:
http://cgi.audiogon.com/cgi-bin/cl.pl?accstwek&1077901125

doug s.

Mathew_M

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Turntable-->phono-->Art DiO-->Panny XR25 Results
« Reply #4 on: 26 Jan 2004, 04:57 am »
Actually doug I'm taking the DiO's digital coax out which shouldn't need to be attenuated right?

Just to be clear because the panny doesn't have a phono section and its A/D section isn't one of its strong suits; I wanted to convert analog coming out of my turntable into a 24/96 signal via the DiO.

doug s.

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Turntable-->phono-->Art DiO-->Panny XR25 Results
« Reply #5 on: 26 Jan 2004, 05:13 am »
i'm not sure, but i imagine if the di/o is set up to output 7v analog, it will also output a stronger-than-normal digital signal.  perhaps ya may wanna contact art directly...

http://www.artroch.com/

doug s.