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Speaker Asylum General speaker questions for audio and home theater. |
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Speaker Asylum General speaker questions for audio and home theater. |
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In Reply to: speaker suggestion posted by xaudiomanx on January 13, 2020 at 15:35:20:
or large, extended-range, driver -- up to a point.In the days when amplifier power was practically and financially limited - but large spaces existed to be filled with reproduced sound (i.e., early "talkies"-era movie theaters), the "technology" was developed to build drivers with 100-plus dB SPL (at 1 meter with 2.83 volt drive) levels of sensitivity.
It is somewhat expensive, but perfectly achievable. Among other things, a large magnet (powerful 'motor') is required.
To give an example of a decent (not great) extended range driver with good sensitivity, consider the Electrovoice SP-12B twincone 12" driver. These were available for many years, represented the mid-range, price and quality-wise, of the spectrum of such drivers... and can easily be driven with, e.g., a single-ended 2A3 amplifier (ca. 3 watts at reasonable levels of distortion). These were not terribly expensive when new (see above, from 1964, e.g.) and aren't terribly expensive now (check eBAY). They sound... pretty good (and even better with a 'supertweeter').
Does information this help any?
all the best,
mrh
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Follow Ups
- It is perfectly possible to build a high-sensitivity woofer... - mhardy6647 01/13/2016:37:22 01/13/20 (1)
- High-sensitivity woofers are the norm for PA systems . . . - Brian H P 16:32:30 01/15/20 (0)
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