Guest dean128 Posted May 31, 2004 Report Share Posted May 31, 2004 I have a pair of AR9 ( original version ) and wondering why the woofers chamber does not have accoustic material like other model such as AR91, AR92. Also, why does the mid-range and tweeters of the AR9 were not supplied with covering foams like AR90, AR91 and AR92Also, what is the main difference, especially in the cross-over design between AR9 and AR9LS.ThanksDean Link to comment Share on other sites More sharing options...
Guest dogmeninreno Posted May 31, 2004 Report Share Posted May 31, 2004 >I have a pair of AR9 ( original version ) and wondering why>the woofers chamber does not have accoustic material like>other model such as AR91, AR92. Also, why does the mid-range>and tweeters of the AR9 were not supplied with covering foams>like AR90, AR91 and AR92>>Also, what is the main difference, especially in the>cross-over design between AR9 and AR9LS.>>Thanks>>DeanDean, I can't answer why the woofers don't have any filler behind them but know that the AR assembly drawings (availible on this site) do not show it. The acoustic filler around the upper mids and tweeters was used in some AR9's but not all had it. Not much of a answer but if you post your message on the AR forum, you will probably get some answers! Dale Link to comment Share on other sites More sharing options...
Guest dogmeninreno Posted May 31, 2004 Report Share Posted May 31, 2004 Here is a link to the AR9 assembly drawing. http://www.arsenal.net/speakers/ar/ar-9/en...ng/Scan12sm.tif Link to comment Share on other sites More sharing options...
Guest dogmeninreno Posted May 31, 2004 Report Share Posted May 31, 2004 Here is a link to the AR9-LS xover schematic. http://www.arsenal.net/speakers/ar/Unclassic/Scan09sm.tif Link to comment Share on other sites More sharing options...
Guest dogmeninreno Posted May 31, 2004 Report Share Posted May 31, 2004 And here is a link to the AR9 xover schematic. http://www.arsenal.net/speakers/ar/ar-9/AR...20Schematic.tif Link to comment Share on other sites More sharing options...
Guest dogmeninreno Posted May 31, 2004 Report Share Posted May 31, 2004 Dean, Here is a copy of a part of Tim Hall's paper on engineering the AR9 (available on this forum) which answers your 1st question.174.txt Link to comment Share on other sites More sharing options...
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