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-   -   MUSES 72320 electronic volume (http://www.diyaudio.com/forums/analog-line-level/220792-muses-72320-electronic-volume.html)

Tolu 1st October 2012 03:52 PM

MUSES 72320 electronic volume
 
Hi,

does anyone know this electronic volume ic?

It is used by NP in the XP 30 preamp and by AVM in their SA 8.
Not really cheap (40 US$) but good specs.

wayne 1st October 2012 05:45 PM

NJR came from Japan and delivered some samples to us at Pass Labs and they seemed rather excited about them. Rightly so it is a very nice part and hence it was used in the XP30. Mac is also using it and you will see it in more products soon. NJR has some audiophiles that really want to make good parts. And this part works great if used correctly, no internal amps you choose your own or build them.

Tolu 1st October 2012 07:08 PM

Hi Wayne,

that's your big advantage. I think I won't get any samples at all:rolleyes:! And I haven't found a distributor that sells one part to tinker guys like me.

Your XP 30 is a very nice device! I didn't have the pleasure to hear it but I read all articles in german press.

Are the examples in the data sheet to the jfet and bipolar input opamps recommendable?

Best regards

Thomas

wayne 1st October 2012 08:51 PM

I think the examples work well on the data sheets but it has so much range we only use the front section. It feeds quad fets. Another good part is the Maxim 1882. It has 63 dB range and is inexpensive plus available.
Was the XP30 in hifi & Records?

Tolu 2nd October 2012 05:52 AM

Is Maxim 1882 superior to PGA2310/2311?

Tolu 2nd October 2012 07:03 AM

Yes, one article was in hifi & records and the other one in Stereoplay.

One comparison else: DS1882 <-> (Blue) Alps MC27112

rollingtube 2nd October 2012 12:33 PM

Stereoplay Article
 
Hi Wayne, your XP30 made it to replace the Thorens TEP 3800 as the reference preamp for the "Stereoplay" magazine - maybe Google Translate can help you on the german article here.

wayne 2nd October 2012 04:27 PM

Quote:

Originally Posted by Tolu (Post 3187027)
Is Maxim 1882 superior to PGA2310/2311?

I like the Maxim because it has no op amps in it. You provide what you like for the op amps or build a discrete circuit. I have not tried the PGA2310.

wayne 2nd October 2012 04:32 PM

Quote:

Originally Posted by rollingtube (Post 3187335)
Hi Wayne, your XP30 made it to replace the Thorens TEP 3800 as the reference preamp for the "Stereoplay" magazine - maybe Google Translate can help you on the german article here.

Thank you. Google translate helps and is always improving but some of the German technical words are hard. Being a typical american I barely know English. I should of payed more attention to my German and French grandparents.

Zen Mod 2nd October 2012 05:08 PM

I'm sometimes finding Google Chrome's integrated translator thingie more useful than on-line Google Translator service


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