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Old 30th March 2011, 05:51 AM   #11
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Join Date: Jun 2008
Originally Posted by wrenchone View Post
SE amps are inherently limited in output power by their B+ and their standing bias current..... If you want more power, as has been said, you need to tinker with the B+...
Thanks for the explanation. I build the universal version of TSE. This means 45's are operatng at approx. 320V/27mA, so no room left to tinker with.
But no worries. I'm fine as it is, but only wanted to get the max out of it. I was under the impression that a substantial part of the volts driving the output tubes was related to the lower frequencies. So compressing the signal on the lower end would give me the opportunity to elevate. Now I understand that, if at all, this would only give a marginal effect.

Last edited by p_e_r_r_y_; 30th March 2011 at 05:58 AM.
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Old 30th March 2011, 10:34 PM   #12
chrisb is offline chrisb  Canada
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Join Date: Aug 2002
Location: victoria BC
Perry, I think you'll find that without crossing high enough to require stereo woofers (i.e. not "subs"), the FE126 won't deliver its best in a BR. It's of course hard to be impartial about designs for this driver the evolution of which I've attended over the course of the past 5 yrs or so, but several of note would be the FrugalHorn3 and Woden Valiant. The former is quite compact and can certainly be built with WAF, while the latter is more physically imposing, and IMO an overall better performer.

In any case, if the TSE can support 2A3, I'd heartily recommend trying them with the FE126. Current production EH Gold Grids are a fairly reasonable price for this type.

best of luck
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