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<blockquote data-quote="ejschultz" data-source="post: 6306147" data-attributes="member: 603800"><p>I&#039;m not sure what is a better deal quite yet. I&#039;m really torn between the speakers I&#039;ve mentioned. Prices for the speakers are $260 shipped for the IDs, $280 shipped for both of the SPX PROs, and about $180 shipped for the SPX REFs. I&#039;m really thinking the IDs will give me the most sound for the money because I&#039;ll be feeding them 100 watts while all the others will be getting only 70. The only thing is, I don&#039;t think they&#039;ll be giving me the most midbass. I really just want to get my crossover set to 80 Hz with a 12 dB/octave slope. At 40 Hz, the level will be about -15 dB. The IDs low range at 100 watts is 55 Hz. I&#039;m assuming at -15 dB, 40 Hz will never see 100 watts. All the Alpine sets will be better off playing that low. I&#039;m not sure if -15 dB is enough of a drop in pre-amp volume. I figure -15 dB because 80 Hz will be at -3 dB. Then at an octave lower (half that frequency) 40 Hz will be another 12 dB less for a total of -15 dB. I think I&#039;m breaking this down to a science when I may not need to.</p></blockquote><p></p>

[QUOTE="ejschultz, post: 6306147, member: 603800"] I'm not sure what is a better deal quite yet. I'm really torn between the speakers I've mentioned. Prices for the speakers are $260 shipped for the IDs, $280 shipped for both of the SPX PROs, and about $180 shipped for the SPX REFs. I'm really thinking the IDs will give me the most sound for the money because I'll be feeding them 100 watts while all the others will be getting only 70. The only thing is, I don't think they'll be giving me the most midbass. I really just want to get my crossover set to 80 Hz with a 12 dB/octave slope. At 40 Hz, the level will be about -15 dB. The IDs low range at 100 watts is 55 Hz. I'm assuming at -15 dB, 40 Hz will never see 100 watts. All the Alpine sets will be better off playing that low. I'm not sure if -15 dB is enough of a drop in pre-amp volume. I figure -15 dB because 80 Hz will be at -3 dB. Then at an octave lower (half that frequency) 40 Hz will be another 12 dB less for a total of -15 dB. I think I'm breaking this down to a science when I may not need to. [/QUOTE]

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