zt000

Responses from zt000

Best preamp is no preamp: always true?
I'd like to prepsent a few facts which may help you to understand this complex issue. Because the answer is "it depends".1st, if we look back 40 yesrs ago, we did not have high output sources. So it was a must to have preamp not only to switch sou... 
Need help to trouble shoot the noisy amp.
Metro04,Thanks for your kind and detailed instructions. I've tried all. Basically the only time that makes any difference is when speakers are connected. First, let me qualify the level of noise. The amps are rated at 112db s/n. The quiet one is v... 
Need help to trouble shoot the noisy amp.
Thanks All!!I wasn't getting a response back from the manufacturer. But, finally got the response back from the original builder. Here is what he says:I dont know what sort of transformer they are using now. But it seems that would be the cause of... 
PS audio hca 2 feedback...
Some of the review pointed out that the self noise level is high. And wondering if lower self noise level would bring out more magic out of this amp. Any comments on this? Thanks... 
Why not more on 845 SETs?
Gunbei, first, I'd recommend that you get the best 12ax7 you can get. Mullard, Telefunken or Amperex are good place to start. I'd recommend paying extra for premium-matched quad. They sound better and last longer. 845s are kind of sensitive to inp... 
Why not more on 845 SETs?
Gunbei, welcome to the King of SET Club. SET40 is a very special amp. First, while other 845 SET produces 25wpc, it produces 37wpc. Second, while other tube amps have dynamic peak power of 150% of rated power (at the most), its got 70+wpc of dynam... 
Anyone heard the Aronov LS9100 monoblocks?
You might want to check this out:http://www.aronovaudio.com/reviews.htmlYou don't need mono block power for your 6.3. The little brother LS-960I has more than enough power for them. You don't need pre amp either. I used run 30 watt tube amp with 6... 
Aronov LS-960i, tube recommendation please.
Gentlemen, thanks for your writings. I'm glad to know that I can use KT88 or KT90 with Aronov. I will try them out. I'm also using Bel Canto SET40 which is 845 based SET and Moth Audio Si2A3. So, Flacre, I know what you are talking about. However,... 
Active Biamping of Your Dreams for Magneplanars
My experience supports following as well:http://www.gcaudio.com/resources/howtos/biamping.html 
the 4 ohm rating
John I'm with you totally. However, even using tube amp on 4ohm speakers are not much problem at all. I'd rather have flat 4ohm speakers than 8ohm speakers deep down below 4ohm. My BSL Type II is 4ohm with 102db with very flat responce. So it need... 
Active Biamping of Your Dreams for Magneplanars
This write up has some marketing purpose. Good information nontheless.http://www.caryaudio.com/articles/bi_amping.shtml 
Active Biamping of Your Dreams for Magneplanars
Gmorris, you have one of the best active x-over box money can buy and the panel speakers are much easier to do active bi-amp than conventional speakers. So, what you have is a winning combination. I was speaking in general terms. Yes, I've done ac... 
Active Biamping of Your Dreams for Magneplanars
In general, active bi-amping is very difficult proposition. Half of the x-over's duty is to split the signal but the other half (or more) is to supress (because its not active) many areas of frequences to smooth out the voice. In general making x-... 
Why not more on 845 SETs?
Amen to DC power. One amp I'm having very hard time getting rid of is N.E.W. DCA66 which is battery powered class A SS amp. Disabled half of the power per Cary's recommendation and it is SWEET. It is a Nelson Pass designed and Cary built amp. I'm ... 
Active Biamping of Your Dreams for Magneplanars
I've used Carver Silver 7t with very good results about 7 years back. IT was very interesting experience to see Maggie use up all of 600 watts time to time. Not to long ago Jeffssoundvalue sold a pair.