Re: Crossover Point for Sub vs. Front Speakers
I'd have to say it is also dependent on power each speaker is getting and what it can handle at a given power.
For example, my R's are getting and are rated at 70 RMS at full tilt, BUT, my speakers never get to full tilt. Because of this, I find that I can get away with pushing the speakers into the 63Hz range without too much audible distortion.
When I go to push them, I find I have to turn the HPF to 80 hz.
I never need to push them up to 100HZ, because by the time my speakers need to go to that, my ear need to be replaced.
Another thing is to look at the speakers limits. if it says that the speaker is rated to 120 RMS, and that it can go as low as 30 hz, it most likely will not be able to perform 120 RMS at that 30 Hz. It might not even be able to take 35 RMS at 30 HZ. The 120 RMS might be at 150 Hz cleanly. Of course it is up to the build design and materials used in the speakers design.
I find at about 50% or more my Type-R's need to be switched up to 80 Hz. I'd be willing to bet they can't handle clean 70 RMS until 125 Hz or better.
2006 Subaru Impreza 2.5i
System Currently:Speaker Amp|Phoenix Gold Xenon 100.2 Sub Amp| Phoenix Gold Xenon 600.1 Deck| Pioneer DEH6800MP Frontstage| Alpine SPR-17LS "]Sub| Phoenix Gold Xenon 10"
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