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In the Forum: Horn-Loaded Speakers
In the Thread: Myth: High-efficiency Low-power
Post Subject: Re: Myth: High-efficiency Low-powerPosted by Genn on: 12/29/2005
Scott,
my apologize, but issue of low-power does not have any relationship to the problems, you have described. The problems could be located in the following areas:
- high output impedance of the last cascade, and amplifier in general,
- relatively high HP-friquency of amp - most of commercial amps are not avaliable to delivery 7W at 20 Hz, due to the size of iron in transformer,
- low capacitors in the amp - most of commercial amps does not have enought capacitance to produce 7W at 20 Hz for 1..10 sec.
- etc., etc.
High Power amps will have other problems in design.
The solution, which finded Romy - self made 6C33C amp - is probably the optimum one. I did not see schematic - but diameter of power caps and description of 6C33C workpoint clearly indicated, that he is about extremum of this tube, and tube solution at all. I like the voice of this tube.
300B - is totally different story.
Sincerely, GennRerurn to Romy the Cat's Site