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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: 1st Order Xovers, a question of volume..... posted by Ozzy on January 22, 2007 at 04:26:49:
The tweeter voice coil will have to absorb more heat -- if the 6dB/octave crossover is at 4000Hz. or above this may be no problem.
At 2000Hz. you'd need a very sturdy, expensive, low Fs tweeter ... and I'd still avoid using the speakers for LOUD parties.The primary disadvantage of first order crossovers is they are often used in speakers with small diameter bass drivers -- drivers that are asked to reproduce a very wide range of frequencies.
At high volumes, these small diameter drivers with have audible intermodulation distortion when there is deep and/or loud bass in the music. Not to mention the bass will also have higher levels of harmonic distortion than bass reproduced by large diameter bass drivers.
For loud volumes, a small diameter bass/mid driver, two-way, first-order speaker, can be used with a subwoofer and 24dB/octave crossover with a turnover frequency in the 50 to 80Hz. range.
This will extend the frequency range and significantly reduce intermodulation distortion, even at moderate volumes.
I use small two-way, first-order (one cap) crossover, speakers crossed over at 70Hz./24dB per octave to a DIY subwoofer. They, and almost all other small speakers, are not acceptable to my ears without using a crossover and subwoofer, even at the modest 75-80dB average SPL's I prefer.
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Richard BassNut Greene
Subjective Audiophile 2007
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Follow Ups
- More heat for the tweeter voice coil when lower order crossovers are used - Richard BassNut Greene 08:25:16 01/22/07 (4)
- I forgot one more thing - Schu 08:03:54 01/23/07 (0)
- Re: More heat for the tweeter voice coil when lower order crossovers are used - Schu 10:35:01 01/22/07 (2)
- Easier to get higher harmonic distortion also - STUART 10:33:03 01/23/07 (0)
- " three way with lots of attention paid to the bass and how it will interact with the room." = sounds like marketing BS - Richard BassNut Greene 07:40:44 01/23/07 (0)
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