ASL Tulip amp mods [message #10659] |
Sat, 07 August 2004 06:44 ![Go to next message Go to next message](/forum/theme/AudioRoundTable/images/down.png) |
spkrman57
Messages: 522 Registered: May 2009
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Illuminati (1st Degree) |
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Just wondering if anyone has a Tulip amp that has been modded, and what the mods were. Also, what kind of output tranny's are used in this amp, would a ouput tranny upgrade be worth the cost? Regards, Ron
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Re: ASL Tulip amp mods [message #10661 is a reply to message #10660] |
Sun, 08 August 2004 07:16 ![Go to previous message Go to previous message](/forum/theme/AudioRoundTable/images/up.png) ![Go to next message Go to next message](/forum/theme/AudioRoundTable/images/down.png) |
spkrman57
Messages: 522 Registered: May 2009
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Illuminati (1st Degree) |
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Thanks for the info, have you heard if the quaility of the handwound tranny's is very good or not. I plan to run a 3 way Edgarhorn system with this and think I should be able to improve on this amp. Any other info you can share with me would be appreciated. Thanks, Ron
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Re: ASL Tulip amp mods [message #10663 is a reply to message #10662] |
Sun, 08 August 2004 12:16 ![Go to previous message Go to previous message](/forum/theme/AudioRoundTable/images/up.png) ![Go to next message Go to next message](/forum/theme/AudioRoundTable/images/down.png) |
spkrman57
Messages: 522 Registered: May 2009
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Illuminati (1st Degree) |
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Thanks for the info. I am running EH 2A3 Gold drid 2A3's(RCA 2A3's for serious listening), Sylvania 12Ax7A's(green label), and a Mullard 5AR4 rectifier. I tried a Blue Circle 21.1 preamp to go with it, but the sound was not very good at all. The same preamp with my MC-240 was okay. So I am wondering about useful preamps with this amp. I had a friend come over with a Bottlehead Foreplay which played very nice. Just hard to match up a preamp with, could that be transformer coupled problem? I have had this for approx a year, the sound is good once you roll some "old stock" tubes to replace the chinese tubes which tend to be forward and lack the subtle details that vintage tubes have. I know a friend with a S45 Moth amp that shows the difference in quality though. Thanks, Ron
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Re: ASL Tulip amp mods [message #10664 is a reply to message #10663] |
Sun, 08 August 2004 13:50 ![Go to previous message Go to previous message](/forum/theme/AudioRoundTable/images/up.png) ![Go to next message Go to next message](/forum/theme/AudioRoundTable/images/down.png) |
Manualblock
Messages: 4973 Registered: May 2009
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Illuminati (13th Degree) |
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Absolutely; the source impedance will have an effect on the load. I have only a rudimentary understanding of this subject. The amp needs a particular load impedance so that the source is better controlled by the electrical damping provided by the load. Like a speaker. Flatter response/ cleaner output, and better resonance control will all be affected by impedance matching of source and load. Some use a look-up factor of 200 or more as a guide. Hopefully some of the brains will see this post and chime in, Eric and Wayne. Input impedance of the Tulip is 100k so you would probably want 500ohm output impedance on your pre-amp. My AES is 560ohm output impedance. If you were close by I would run it by, but if not try and borrow one. It's a nice sounding unit and it would probably work for you. That Tulip I believe can run 45's as is; no? You know as an aside; there will always be something better. Like the Moth; since it sells for 4times the price of the Tulip, it better be. Hope this helps; J.R.
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Re: ASL Tulip amp mods [message #10667 is a reply to message #10666] |
Sun, 08 August 2004 19:40 ![Go to previous message Go to previous message](/forum/theme/AudioRoundTable/images/up.png) |
spkrman57
Messages: 522 Registered: May 2009
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Illuminati (1st Degree) |
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I don't know how it will work, but I swapped for some $$$ and trade for Audible Illusions L1 preamp. Don't think it will be much different, but can sell off if I don't like it. So far, the Bottlehead Foreplay preamp plays well with it, Bill Epstein came down and we tried it, sounded wonderful. I will try the L1 soon, but busy schedule for next couple of days with domestic stuff I have to do, will report findings when I do. Cheers, Ron
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