derrickdj1 Posted July 17, 2015 Share Posted July 17, 2015 Good to hear that the may be OK. Check with Parts Express on using the Ultimax in a down firing sub. I know you can't use the 18 UM in that configuration. A Stereo Integrity can be used for down firing. Something with the weight and structure of the UM 18, Quote Link to comment Share on other sites More sharing options...
Scrappydue Posted July 18, 2015 Share Posted July 18, 2015 lol derrick its a small woofer. can't be using 18's. i think its just a 12" woofer. Quote Link to comment Share on other sites More sharing options...
K5SS Posted July 18, 2015 Author Share Posted July 18, 2015 Yeah, just a 12. Haha Quote Link to comment Share on other sites More sharing options...
derrickdj1 Posted July 18, 2015 Share Posted July 18, 2015 I know you need a 12. I just remember someone saying that the 18 could not be used for down firing. I don't know if it is the same for the 12 due to sag. Quote Link to comment Share on other sites More sharing options...
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