Pioneer CS-66G Midrange Question

[propflux01]

Hello. I have recently acquired an old set of 4 CS-66G's. They are in need of work. The tweeter, are of course, shot, and the foam around the 10" woofers need replaced. Usual stuff. Thing is, this speaker is rated for 40W max. I have a 100WPC receiver. I want to mount 4 of these of the upper walls of my garage, and I am planning on replacing the woofers and tweeters for something that can handle the receiver. Which brings me to the midrange. On all four of these, the midrange is a huge 6 inch sealed back unit, and they seem to be in really good shape. It has the stock crossover that I will recap, and hopefully reuse.. It crosses at 1000 and 7000Hz. My basic question is, if I replace the woofers with something that will handle the receivers' 100 watts, can I still use these midrange speakers?

 

[Lavane]

With four of them, the output of your receiver will be halved. You should be fine.
I run higher wattage power amps with lower wattage speakers all the time.
Just don't turn it up to where it's distorting. I have a pair of 125 watt mono blocks connected to a pair of speakers rated for 70 watts right now.

 

[propflux01]

Yes, 4 of them will be used, and most of the time the volume will be low, but just didn't want to poof them into oblivion in the event I get a hair and decide to stir up the neighbors! The tweets and woofers will be replaced.

 

[Lavane]

Yes, 4 of them will be used, and most of the time the volume will be low, but just didn't want to poof them into oblivion in the event I get a hair and decide to stir up the neighbors! The tweets and woofers will be replaced.

It will drop the load on your amplifier to 4 ohm using four speakers. So make sure the amplifier is rated for 4 ohm use. And it probably will make the amplifier run warmer especially at higher volumes. I did have one amplifier that ran the second pair in series making two 8 ohm speakers a 16 ohm load.

 

[propflux01]

It is supposed to be able to handle it. Something I did notice that I have not seen before. I removed the drivers and the rear panel to remove the crossover and treat the cones on the midranges (they all ohm 14.7 to 14.9 statically). This speaker has some really good insulation in it. Very thick and heavy. But I've never seen insulation tacked up around a woofer like this stuff is. Doesn't this cause the box to appear 'smaller' to the woofer? Seems to also negate having a closed back midrange, as well. comments?