Chorus1 Fan Posted April 5, 2020 Share Posted April 5, 2020 I like my modified Chorus 1's so much, I recently picked up a mint set of Quartets (Chorus's little brother) so I can set up a music room for my Dad. The rear passive radiators are both perfect, but I was worried they wouldn't stay that way forever... After alot of thinking, here's my "fix" : Ordered a set of metal car audio subwoofer grills from Amazon. 2 packs of small neodymium disc magnets from Ace Hardware. A pair of knockoff (IE:fake) Klipsch pie logos from ebay I think they look awesome, I even like em better than before! The cool thing is the magnets are just stuck to the passive frames & the grills are then stuck to the magnets. They grills came with a piece of rubber/trim which helps them not grab the magnet too tight for easy removal (neodymium magnets are CRAZY strong) The Quartet's have a 12" passive & I checked specs on quite a few grills before I found a pair that were just right & fit the factory cutout EXACTLY. They really look like they were made that way 😃. The same concept would work for Forte's & Chorus II's if you used 15" grills. 2 Quote Link to comment Share on other sites More sharing options...
Chorus1 Fan Posted April 5, 2020 Author Share Posted April 5, 2020 You can see the six silver neodymium flat disc magnets sitting on the passive frame here 2 Quote Link to comment Share on other sites More sharing options...
billybob Posted April 5, 2020 Share Posted April 5, 2020 Looks pretty good to me. What in particular are you protecting from? Quote Link to comment Share on other sites More sharing options...
Chorus1 Fan Posted April 5, 2020 Author Share Posted April 5, 2020 A closeup of the "knockoff" (fake) logo 1 Quote Link to comment Share on other sites More sharing options...
Chorus1 Fan Posted April 5, 2020 Author Share Posted April 5, 2020 And finally, the magnets I used (in case anyone wants to duplicate the idea) Quote Link to comment Share on other sites More sharing options...
Chorus1 Fan Posted April 5, 2020 Author Share Posted April 5, 2020 4 minutes ago, billybob said: Looks pretty good to me. What in particular are you protecting from? Grand-kids, & their friends 🤪 I've seen MANY pushed in center dustcones on all three models (Quartet/Forte/Chorus II) Once they're pushed in it's VERY hard to undo. 1 Quote Link to comment Share on other sites More sharing options...
billybob Posted April 5, 2020 Share Posted April 5, 2020 Enjoy your Quartets! 1 Quote Link to comment Share on other sites More sharing options...
Chorus1 Fan Posted April 5, 2020 Author Share Posted April 5, 2020 6 minutes ago, billybob said: Enjoy your Quartets! I/He will ! & since I will re-inherit them someday (my Dad is 82) I'm doing them like I want em before setting them up for him. I just sent the crossovers to Mr. Crites for a recap, & I will be internally bracing them like I did my Chorus 1's. ( 🤣 Probably post another thread over in "Technical/modifications" when I get everything done) 1 Quote Link to comment Share on other sites More sharing options...
billybob Posted April 5, 2020 Share Posted April 5, 2020 If you really think that they need it. Have my doubts about it. Cool 1 Quote Link to comment Share on other sites More sharing options...
OO1 Posted April 5, 2020 Share Posted April 5, 2020 - 1 Quote Link to comment Share on other sites More sharing options...
OO1 Posted April 5, 2020 Share Posted April 5, 2020 - 1 Quote Link to comment Share on other sites More sharing options...
OO1 Posted April 5, 2020 Share Posted April 5, 2020 - 1 Quote Link to comment Share on other sites More sharing options...
Chorus1 Fan Posted April 5, 2020 Author Share Posted April 5, 2020 16 minutes ago, billybob said: If you really think that they need it. Have my doubts about it. Cool Maybe they don't need it since they're a little smaller, but bracing made a big difference in my Chorus 1's. It'll only take me a few hours & we all have time to spare right now 😂 Plus, I wanted to rotate the woofer 180 & redo the gaskets/seals for the woofer & passive so I might as well brace em while I'm in there... 1 Quote Link to comment Share on other sites More sharing options...
Chorus1 Fan Posted April 5, 2020 Author Share Posted April 5, 2020 8 minutes ago, Randyh said: dont wait - get your own - My mains are a set of Chorus 1's that I modified with 7" port extensions & internal bracing & are fed by a Yamaha M-60. They'll blow these puny Quartets away 😂 Quote Link to comment Share on other sites More sharing options...
OO1 Posted April 5, 2020 Share Posted April 5, 2020 - 1 Quote Link to comment Share on other sites More sharing options...
dsb Posted April 22, 2020 Share Posted April 22, 2020 I assume that this passive radiator grill did not negatively impact the sound, correct? Quote Link to comment Share on other sites More sharing options...
Chorus1 Fan Posted April 23, 2020 Author Share Posted April 23, 2020 19 hours ago, dsb said: I assume that this passive radiator grill did not negatively impact the sound, correct? Nope, didn't change it any because they're made for car subwoofers & are designed to not block the bass. I also specifically chose the neodymium magnets (not regular magnets) to hold em on super tight w/o rattles. I considered velcro, but I like the fact that the magnets aren't really attached to either surface (IE: grill or passive frame) so they can be removed in about 2 minutes by pulling those strong lil suckers off 😄 IF you chose to try it yourself, make sure you buy metal grills, not plastic so the magnets stick. These are the ones I used, & fit the Quartet & Forte 1's EXACTLY. https://smile.amazon.com/gp/product/B083R3RBG1/ref=ppx_yo_dt_b_asin_title_o01_s00?ie=UTF8&psc=1 If you have Forte II's or Chorus II, you would need something similar, but in 15" size 1 Quote Link to comment Share on other sites More sharing options...
billybob Posted April 23, 2020 Share Posted April 23, 2020 Yes, forte' 12 inch, Forte IIs 15 inch. Cool... 1 Quote Link to comment Share on other sites More sharing options...
huskerdooo Posted December 24, 2021 Share Posted December 24, 2021 Has anyone found a good 15" set that fits the Forte IIs? There is very little room on the back of the Forte IIs with the 15" passive. Also, it looks like the grills in the provided link might have changed? Reviews say the ring is plastic. TIA Quote Link to comment Share on other sites More sharing options...
Chorus1 Fan Posted December 24, 2021 Author Share Posted December 24, 2021 12 hours ago, huskerdooo said: Also, it looks like the grills in the provided link might have changed? Reviews say the ring is plastic. The grill is definately steel, but it does have a thin flexible rubber "gasket" on it (I think to help it seal/sit flush). The STRONG neodymium magnets I used stuck to it w/o a problem. 1 Quote Link to comment Share on other sites More sharing options...
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