Walnut Hi-Fi V2 WAV (& MP3) Player by wt - :ok_hand: screenless budget killer combo DAP/Amp :ok_hand:
Feb 19, 2017 at 4:40 AM Post #2,133 of 3,631
Originally Posted by bzfrank /img/forum/go_quote.gif

If you search some unreal experience power wise get an AD8397ARDZ, instead of the usual power of 30-50mA per channel this little bugger outputs a torrent of 310mA! A bit forward presentation but very nice bass slam!

(I still prefer the AD825 as it is more refined with my IEMs but the AD8397 can even drive my old AMG K340 to well audible levels, something no other could manage)


I took a gamble and ordered one a few weeks back since it was in the Ihifi 812V2.
I had read it might get a little screwy in the wrong application, so very good to see it is stable and not showing any issues so far.
Thanks for posting about this.
 
Impressive with the 340. ( you have a typo for people who might be curious about looking that one up = AKG )
beerchug.gif

 
Let us know if you notice any serious drop in battery life.
 
Feb 19, 2017 at 10:01 AM Post #2,135 of 3,631
Got these coming   
 
Feb 19, 2017 at 11:16 AM Post #2,137 of 3,631
I took a gamble and ordered one a few weeks back since it was in the Ihifi 812V2.
I had read it might get a little screwy in the wrong application, so very good to see it is stable and not showing any issues so far.
Thanks for posting about this.

Impressive with the 340. ( you have a typo for people who might be curious about looking that one up = AKG ) :beerchug:

Let us know if you notice any serious drop in battery life.


Talking about power draw, in my modded Walnut (3000u power cap and 6x 220u caps) it takes a whopping 3 sec for the poor battery to charge up all those caps before I get sound in my phones. So obviously no more power on pop lol and volume pot is smooth and linear all the way to full turn

I'll check out its battery performance next week
 
Feb 19, 2017 at 1:31 PM Post #2,138 of 3,631
I want to comment on LME49720NA, after listening to it for a few days I prefer it to stock 5532. Some people may find lme to have less bass and mainly not as in your face mids, that doesn't bother me, coz I'm listening mainly on RE400 which is I would say little mid-centric with well extended bass. I find bass on the lme to be accurate and heard when you need them. AND the highs and the soundstage is much better and open on lme :)
Only downside being the "bubbling" background noise, which can be heard in quiet parts of music. This noise may be reduced when I change power cap, am I right?

I wish I could AB opamps with another nut like some of you guys :)
Hope my short impressions can help someone.
 
Feb 19, 2017 at 2:33 PM Post #2,139 of 3,631
Feb 19, 2017 at 4:41 PM Post #2,140 of 3,631
  @T.R.A.N.C.E., @nick n, @vapman
 
I read about the mods done by you guys one of which is the Rubycon ZL 1000uF 16v cap and searched for it to learn more ...I came across a few online vendors like rs, element14 selling ... description stated as 16v but pics showed 25v.  Can it be used on the nut?
 
TIA ...
 
http://sg.element14.com/rubycon/16zl1000mefc10x20/cap-alu-elec-1000uf-16v-rad/dp/1144692

That place uses the 25v 1000uF pic for literally all Ruby ZL's they sell, so i'm gonna guess thy're just lazy about the stock pics.
 
Feb 19, 2017 at 5:53 PM Post #2,142 of 3,631
I want to comment on LME49720NA, after listening to it for a few days I prefer it to stock 5532. Some people may find lme to have less bass and mainly not as in your face mids, that doesn't bother me, coz I'm listening mainly on RE400 which is I would say little mid-centric with well extended bass. I find bass on the lme to be accurate and heard when you need them. AND the highs and the soundstage is much better and open on lme
smily_headphones1.gif

Only downside being the "bubbling" background noise, which can be heard in quiet parts of music. This noise may be reduced when I change power cap, am I right?

I wish I could AB opamps with another nut like some of you guys
smily_headphones1.gif

Hope my short impressions can help someone.

Can't wait for mine to arrive.
 
Feb 19, 2017 at 8:50 PM Post #2,143 of 3,631
The LME49720 is actually rather nice, wide stage, good clarity and great dynamic. Did not experience bobbing here.

You may also want to try the LME49990. Also a very nice one.

But for ym setup I still prefer the Analog Devices line - AD825 (+++), AD8066 (++), AD8620 (++) - best textured, best layered sound and most detailed. A tad warmer than the LMEs but without the laid-back of most of the OPAs.
 
Feb 20, 2017 at 1:33 AM Post #2,144 of 3,631
It's stupid how good the $25 walnut + $5 JRC4558D opamp + $5 monk+ sounds. Crazy stupid. Awwsome!
 

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