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In the Forum: Audio Discussions
In the Thread: The loudspeakers for a powerful SET
Post Subject: The project seen in contextPosted by Gregm on: 4/15/2008
It doesn't seem prudent to look at the speaker without considering the amplifier at all. We would be designing a speaker that would work with a theoretical amp -- but not one that's available.
I propose the following:
- Characteristics of many commercial SETs should be recensed & a "standard" SET should be made or chosen, corresponding to these characteristics. Things like output vs frequency should be taken into account.
- The drive units should be chosen, not only for their sonic performance but also their compatibility with the "standard SET" performance characteristics. {To give a silly illustration: if the amp sounds shrill in a specific frequency bracket -- say 1-4kHz -- then we shouldn't choose a ceramic or metallic drive unit for this bracket, etc.}
- The design should start from the bottom frequency up, rather than the other way round. I think it's better to start getting the 25-50Hz part right and then move upward -- rather than the other way 'round as it's usually done. That way the extra low octave is part of the whole rather than an afterthought. In many commercial speakers the 20-¬60 region sounds like an afterthought. Itherwise, the bottom 8ve becomes active which is outside our scope.
- Let's begin the excercise with a "reasonably-priced" experimental model. I propose Eminence A or B 15" for the bottom 8ve (s) as follows: either 2/ or 4/ side. If two, then the "ripol" arrangmenent. If four, then two in front & one on either side.
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