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Posted: Thu Jan 15, 2009 7:19 pm
by Purple RS
He posted me a link to a topic in
http://www.PolkAudio.com/forums to a 6-year old thread about this box. It's the Polk Audio C4. Then it was 5-10 years old, and here's the specs from one of the posts...
-Driver complement - Four 6x9 drivers mounted in a isobaric push pull configuration
-Enclosure type - 4th order bandpass
-Frequency response - 25 to 150 Hertz
-Sensitivity - 94 db @ 1 Watt @ 1 Meter
-Recommended amplification - 25 to 200 Watts per channel
-Impedance - 4 Ohm stereo, 2 or 8 Ohm mono
-Dimensions - 8" H x 26.25" W x 17.125 D
-Weight - 26 pounds
Posted: Fri Jan 16, 2009 6:32 am
by falkenbd
Tim wrote:That was the cool thing about isobaric. But it never really took off. Back in the 90's I always wanted to experiment with the iso design and never did.
the best I remeber polk or infinity did a iso box that held 2 10's I beleive. One inside the box and one on the outside mounted face to face. I liked the thoughts behind the concept, that was about it though.
Tim
Its kind of pointless now with all of the subwoofers that'll fit in small boxes.
Very few people like spending 2x as much on woofers for the same output, just to save the space.
Posted: Fri Jan 16, 2009 12:04 pm
by Tim
falkenbd wrote:Its kind of pointless now with all of the subwoofers that'll fit in small boxes.
Very few people like spending 2x as much on woofers for the same output, just to save the space.
Yeah thats true. but then it was kinda innovative. Back then they were very few if any, space saving subs, so it was a good idea. I didn't like the whole 4 6x9 thing either. Although I do like the concept, I wouldn't go that way now, and probably wouldn't have then either.
Tim
Posted: Fri Jan 16, 2009 12:10 pm
by Bwcad1
4 8's in that would be sweet.
Posted: Fri Jan 16, 2009 12:23 pm
by Tim
Bwcad1 wrote:4 8's in that would be sweet.
Tis true. You could probably get some decent sound out of it then.
hmmmm....
Tim