Thanks Lloyd, I've been listening the system since 5 AM today, this amps deliver a very credible soundstage and midrange purity, there was some extra content in my records that were like hidden in some way.
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- Thread starter flez007
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Thanks Lloyd, I've been listening the system since 5 AM today, this amps deliver a very credible soundstage and midrange purity, there was some extra content in my records that were like hidden in some way.
I placed a pair of Harmonix wooden footers at each amp, and bass reproduction is now more tight and fast, mids are cleaner and highs just remained the same - I have had this footers for quite a long time but it is under this setup that showed their benefits the most.
http://www.combak.net/feet&bases/FEET_and_BASES.html
http://www.combak.net/feet&bases/FEET_and_BASES.html
hey Flez...great one. just to let you know, i copied and pasted this one and brought it across to the Stillpoints Ultra V & Wilson X1s thread which i started and which has received some coverage from members interested in such experiences as yours...hope that's ok...you may get questions over there!
I have once tried two Jadis amps in my system - JA-80 Anniversary with the matching JP-80 Anniversary pre and JP-120. Two great, but also slightly different sounding amps (the KT-120 equipped JA-120 beeing more transparent and less 'Jadis like'). Unfortunately, none of them had enough grunt to drive the punishing load of Sasha.
JA-120:
JA-80:
JA-120:
JA-80:
I also tried both in the Aida's - they did not have power enough for them. But the JP-80 connected to the Dartzeel NH108 produced the more delicate, airy and holographic treble sounds I have listened in my system. As a good friend said - treble sounds seemed to fluctuate in cushions of air around the room!
I haven't heard the JA-80 Anniversary but its predecessor was a very nice sounding amp. The original JA-80s problem--and it appears the same with the new version--is that it has to be matched with the right speaker. My friend had it driving the top end of RS-1bs many years ago; sounded great but woefully underpowered. He ended up at that time using the cj Prem 5s to drive the Infinity panels (he now has the LP275Ms).
A friend of mine, from whom I borrowed the JA/JP-80 combo, has Serblin Ktema speakers, which are much easier to drive than the Sasha. And before the Ktema, he used to have the SF Guarnieri Evolution. He has a small room and is not a headbanger, so the amp does the trick for him.
The local dealer has both the JA80 and matching pre anniversary editions, they look and sound terrific to my ears, he shoes them with TOTL Penaudio speakers with great success. My dedicated room is not that large and my speakers (Avalon Ascents) are in a near-field listening position, the JA50 drives them with no issues even for symphonic pieces.
Re Jadis amps, our local distributor then advised us users to remove the protective grills while listening, that is, if no children or pets roam around the amp area during the listening session. The grills run really hot on my JA 200s and removing them kinda dissipates the heat from the tubes more rather than soaking it all up in the cage. What surprised me was that the sound became more open, and more at ease without the grills. A few friends who did that reported sonic improvements too. But of course, to those with small kids and pets, that is not really an option. I have removed the cage from the JPL line stage and also the metal plate on my ARC amp too.
You were right Jadis!..and the improvement is not subtle! Thanks...
that's great to hear, flez! and yes, it is not subtle. and i was told the tubes will last a bit longer bec they won't be that hot under the cage anymore. but the best thing is there is a sonic benefit.
On my ARC amp, I make a point of always removing the cage before listening. I have found the cage just burns up the tubes.
One other thing (and based on the results obtained today...) do tube-ring-dampers work? - I have never tried them....
personally, i have to split hairs to find some improvements with these rings. but since arc supply them for free, i let them stay. but in my old arc amp, the rubber rings kinda melted and hardened into the tubes. since then, they have changed from the white rings into black rubber rings.
It will depend on tubes. In my experience 6922/ECC88 almost all the time need the dampers, 12AX7/ECC83 also improve with it. Most 6H30's do not need them, but in a few of them it makes a difference. I think ARC uses the double rings most of the time just in case they become necessary during tube life, as sometimes tubes become microphonic in their normal lifetime. My microphony tests are carried with an audio spectrometer and two different rubber mallets.
Fernando, my local dealer strongly suggested that I do not use tube ring dampers after he had a set melt on him and take out an amp. I trust this guys opinion as I have heard this from
several other a'philes as well. Better safe than sorry.
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