In Reply to: RE: Efficiency & Resistance posted by Garg0yle on February 14, 2015 at 16:06:35:
The efficiency does not change with the impedance. If you have an amp with selectable taps on the output transformer (4-8-16 ohms is typical) then when the amp is matched to teh speaker the system will have the same maximum output, independent of the speaker impedance.
If you have no taps, as is typical with solid-state amps, then you have a limited voltage, in which case the voltage sensitivity (dB per volt) is the relevant measure and a higher impedance speaker will have less maximum output.
To change form one impedance to another, replace all the speaker drivers and the crossover with otherwise-identical parts rated for the new impedance. You can keep the boxes. :^)
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Follow Ups
- RE: Efficiency & Resistance - Paul Joppa 17:44:54 02/14/15 (10)
- RE: Efficiency & Resistance - Don Reid 11:53:06 02/15/15 (1)
- RE: Efficiency & Resistance - Paul Joppa 13:49:57 02/15/15 (0)
- RE: Efficiency & Resistance - saki70 18:57:20 02/14/15 (7)
- RE: Efficiency & Resistance - Paul Joppa 13:58:56 02/15/15 (0)
- RE: Efficiency & Resistance - Garg0yle 19:40:40 02/14/15 (5)
- RE: Efficiency & Resistance - saki70 03:33:01 02/15/15 (1)
- RE: Efficiency & Resistance - Garg0yle 10:47:41 02/15/15 (0)
- RE: Efficiency & Resistance - djk 21:43:36 02/14/15 (2)
- RE: Efficiency & Resistance - Brian Levy 23:55:55 02/14/15 (0)
- RE: Efficiency & Resistance - Garg0yle 23:39:16 02/14/15 (0)