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Old 10th December 2004, 06:19 AM   #1
diyAudio Member
Join Date: Sep 2003
Default Help me make a preamp decision

Well i'm in a dilema. I can't choose between building the Etude on diyparadise based on the 12b4 and Frank's Ultimate preamp based on the 12bh7a. There is about a $200 price difference. I was leaning toward Frank's, then was enticed the 12b4 can be built for cheap, but after compararing prices, if i sprang the extra money, i could build Frank's.
Whichever preamp i build, it would be driving my Ladyday 300Bs. Please share experience you guys have with either and convince which to build!
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Old 10th December 2004, 06:22 AM   #2
hacknet is offline hacknet  Singapore
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i quite like the 12b4a... seems to be a nice linear tube that can dish out current
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Old 10th December 2004, 08:44 AM   #3
drcy is offline drcy  Hong Kong
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Join Date: May 2003
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Default $200 price difference?

How to get the above figure? I am planning to build Frank's by using PCB, of course 12B4A is well also with CCS, my second choice.
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Old 10th December 2004, 11:16 AM   #4
EC8010 is offline EC8010  United Kingdom
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My experience is that 12B4 needs to be selected for low distortion. If you can do that, fine. Otherwise, the 12BH7A option might be safer.
The loudspeaker: The only commercial Hi-Fi item where a disproportionate part of the budget isn't spent on the box. And the one where it would make a difference...
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Old 10th December 2004, 11:49 AM   #5
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I have built both. The 12B4 has a nice low end but I feel the 12bh7 is more musical. There is something about it that you can listen for hours without getting tired of listening to it. The 12bh7 would be a sweet choice. Just my .02
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