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NAGRA PL-L owner Question S

I recently purchased the Nagra PL-L after read the comment fr the member (Artg), get a good deal fr here and just send to Canada, it sounds really good as Artg discribed, since
I am a newbee, can someone suggest me some ideas how to improve the sound quality?? Good Powercord make any difference on this (it operate by DC..)

I also noticed that the DC supply ACPS run little warm when operate for few hrs, is that normal??

Also the DC meter sits on the lower end of the green area but not on the middle, is that normal too, what is other user's setting?? According to the manual, the green area is fr 11.6V to 13V....

I am confused by the page " ELECTRONIC SERVICES
BULLETIN", it said ....THE FUSE SITS ACTUALLY IN A
PLASTIC BAG INSIDE THE POWER SUPPLY SINCE JAN23/2002.

Does it mean there is a EXTRA fuse inside the power
supply and also inside the plastic bag??Do I need to
OPEN the power supply and take the EXTRA fuse out??if
there is a plastic bag inside the power supply, I am
afraid it will be melt because the power supply run a
little bit warm.

Thanks
tomho
artg
362 posts
 
Im diggin the new SuperTNT 845M, overall my favrote Chinese made 845 (and i tried the base Shuguang 845, the SuperTNT 845B,and the original 845M (aka 845C), they each had some virtue (except for the base Shuguand 845 which didn't excell in anytihng), but overall, I like the new 845M, it ads nice dynamicandbase (vs say the 845B), yet is well balanced across the freq. spectrum and overall smother than the original 845M (which was snappy but just a tad bright).

Internally, I havent done as much rolling, mostly b/c its a major PITA to open each VPA and roll. I did notice a very nice improvement with super low noise, nicely matched 1950's vintage RCA 12AX7 (from andy at vintgetubeservices), but plan on trying some others (smooth plate teles, maybe the Tesla ECC803s repro, and a few others), but its such a pain... FOr the 7119, I have Amperex, which is the top dog there (lso from Andy).

As always, microphonics, noise and matching/testing is as (or more) important than the 'vintage' tube you use (though perhapsless critical on an amp vs a preamp), and I will give the Nagra people credit for providing quiet, non-microphonic tubes, even if they are a bit sterile compred to the older stuff....
elberoth2's avatar
elberoth2
1,223 posts
 
Artg - have you tried the KR 845 tubes ?
artg
362 posts
 
no I have not, but have heard they're pretty nice. My main reason for not is expense (they are waaaay expensive), and secondly, others' horror stories about sparks within them causing shorts in their VPA's, which would not be an issue for yours which came with KR's from the factory.
elberoth2's avatar
elberoth2
1,223 posts
 
A close friend of mine, who also uses VPAs, already expirienced a KR tube failure. Fortunately for him, the failure caused no damage to the speakers. The tube was replaced by Nagra (togeter with the other working tube from that pair) under warranty.

Before KR tubes, he used the chineese ones. He told me that KRs are far more refined sounding.
artg
362 posts
 
For me, the new 845M (which was several years in development and only started shipping 2 months ago) is good enough, and much much much much better to the oroginal Shuguang 845's that used to be stock for VPA's - really a major improvement.... so I bet the perfromance gap is now quite a bit less than when your friend used the 'chinese 845.'
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