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Old 12th February 2013, 06:10 PM   #141
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Quote:
Originally Posted by Nisbeth View Post
Boards now en route

Question: Is there any reason for using 21R resistors on the output and not 22R/22R1?

/U.
No, in fact in many cases those resistors can be replaced with jumpers.

The value is not critical.
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Old 13th February 2013, 01:55 PM   #142
twluke is offline twluke  Japan
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Quote:
Originally Posted by BrianDonegan View Post
Here is a picture of the kit boards and parts. On board is upside-down to show the op-amps etc.
Quite interesting. I might want to try these boards for DSD archive of my vinyls (128fs) by connecting it to an Ayre ADC (QA-9) and a UDA board . Do I need to order a pair of complete kits for stereo setup or is it okay to order a "single" complete kit for it? Please enlighten me. Thanks in advance.

Tsuneya
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Old 10th May 2013, 01:43 PM   #143
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Vinyls are great but the cartridge colors the sound. Different cartridge equals different sound signature and not forgetting that listening to the same record many time the sound quality can only go downhill... This is certainly not faithful in the reproduction of the recording. However, I can understand some people prefer a specific sound signature, hence the reason why there's SS and tubes amplifiers/pres and analog and digital medias.

I am not a hater of vinyl at all but I believe that high res files are the way to go when using the proper equipment. However, don't talk to me about MP3 and their siblings.

My friend gave me his Revolver TT and a big boxe of vinyls so I shall give it a try for the fun of it.

Taste are not questionable so it was my personal take on the subject.

Ciao!
Do
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Old 13th May 2013, 03:15 PM   #144
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Default What is the purpose for C1 and C2

Pardon my ignorance
Just curious what is the purpose for C1 and C2 which go across both channels
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Old 13th May 2013, 03:19 PM   #145
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They are part of the RIAA filter. Each board is a single balanced channel, so these are not "going across both channels," but are from the + to - nodes of a single channel.
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Old 16th May 2013, 10:51 AM   #146
WDYSUN is offline WDYSUN  Italy
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Hello

To anybody: any experience with this RIAA?

To Russ: I am not totally expert on the subject, I have several LPs and a decent audio card with Balanced Analog inputs, does this circuit easily connect that kind of soundcard?

Best Regards
Pierre
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Old 16th May 2013, 12:27 PM   #147
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Sure - it will work fine into any balanced input I can think of.

I use mine into a balanced Joshua Tree attenuator then into a power amp.
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Old 18th May 2013, 04:06 PM   #148
Nisbeth is offline Nisbeth  Denmark
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I've just finished my build and initial impressions are very promising.

Pics etc. here: The “Retro” balanced RIAA stage | theslowdiyer

/U.
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Old 18th May 2013, 04:09 PM   #149
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Great build! I can't wait to hear your review.
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Old 19th May 2013, 09:11 AM   #150
Nisbeth is offline Nisbeth  Denmark
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Thanks Russ, will try to get as much listening done as possible over the next week or so.

BTW, what is the right gounding arrangement in the Retro - do you have a drawing handy maybe?

/U.
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