nashvilletitans Posted December 23, 2020 Share Posted December 23, 2020 Hi all. I have a pair of early '90s Chorus ii's. I've replaced the crossovers with a set of Bob Crites. I've been using a Van Alstine Super Pas preamp with a modified St-70 for several years and recently bought a 300b integrated amp I'm starting to break-in. Other than the new crossovers , what would you suggest I do to these Chorus ii's to show them some love? They are nearly mint in a beautiful walnut finish. Thanks for your time and Merry Christmas! 1 Quote Link to comment Share on other sites More sharing options...
billybob Posted December 23, 2020 Share Posted December 23, 2020 Welcome to the forum! Looks like you have what is needed already. Congrats! 1 Quote Link to comment Share on other sites More sharing options...
nashvilletitans Posted December 23, 2020 Author Share Posted December 23, 2020 (edited) 5 minutes ago, billybob said: Welcome to the forum! Looks like you have what is needed already. Congrats! Thanks, I was mainly asking if anyone thought they would benefit from new tweet or mid drivers or any other mods beside the new crossovers since they are pushing 30 years old. Thanks again. Edited December 23, 2020 by nashvilletitans 1 Quote Link to comment Share on other sites More sharing options...
mustang_flht Posted December 23, 2020 Share Posted December 23, 2020 Hi, MAHL Horn K79 of @Dave A whith Faital Pro HF100/102 or B&C driver DE10/110/111/120, ... 😜 4 Quote Link to comment Share on other sites More sharing options...
PrestonTom Posted December 23, 2020 Share Posted December 23, 2020 Are there any particular complaints you have about the way they currently sound? Quote Link to comment Share on other sites More sharing options...
moray james Posted December 23, 2020 Share Posted December 23, 2020 Welcome to the forum. The mid driver in the Chorus is very hard to beat there are some better ones but you are not going to blow the stock one away and you will have to shell out considerable cash to do so. The tweeter can be improved upon again more cash. You can modify both the tweeter and the mid and obtain much improvement for a reasonable amount of cash, you will need some dynamat and some 1/8" F-11 Acoustical Felt to do so. I suggest you start with fresh caps for your speakers burn them in and go from there. Both horns used in the Chorus ll are very good within their ranges. The mid horn is very solid and does not need any damping the tweeter horn improves with a layer of dynamat The passive can be re tuned a little lower for a nice improvement in bass extension you only need add about 1.5 ounces of dead weight to the unit in the form of large steel flat washers, while the number of hertz it gains you is but a band full you will be pleased with the improvement. Hope this helps. PS: I have included some interesting info on tweeter/mis allignment. see below. Klipsch Chorus tweeter and mid alignment measurements.htm 2 Quote Link to comment Share on other sites More sharing options...
MeloManiac Posted December 23, 2020 Share Posted December 23, 2020 Welcome to the forum! My personal preference is to keep a vintage speaker in its original state. I have recapped my 1972 Heresies and oiled the veneer, and then treated them with beewax and that was it. I keep the old capacitors nearby the speakers, you never know. If it ain't broken, don't fix it... Your question makes me think of the story of grandpa's hatchet: sometime after the war, someone broke the hatchet's handle, and it was replaced. Then, 30 years later, there was a crack in the head and it was replaced as well. Yet, in the family, it's still called grandpa's hatchet... 6 Quote Link to comment Share on other sites More sharing options...
wetowne Posted December 23, 2020 Share Posted December 23, 2020 There seems to be two camps when it comes to old heritage Klipsch. The "preservationists" and the "hot-rodders", much the same in the world of antique cars too. I am all for restoring a speaker back to original specs if it needs it and it preserves the original sound. Some people like to push the limits of the speaker and "improve" it if they can or even alter it so it becomes something different than what it was. That's all well and good for some, get your fun anyway you can but a lot of what is done is totally unnecessary. 2 Quote Link to comment Share on other sites More sharing options...
Alexander Posted December 23, 2020 Share Posted December 23, 2020 IMHO – you have the xover covered so the only thing I would consider doing is to pull all of the drivers and re seal them & install Crites Ti tweeter diaphragms. The stock mid driver rarely needs any attention. 1 Quote Link to comment Share on other sites More sharing options...
PrestonTom Posted December 23, 2020 Share Posted December 23, 2020 Guys, we still don't know what problem or inadequacy the OP is trying to solve. I am not sure where the recommendations are coming from. IMHO, more good will come from carefully and systematically optimizing the room placement of the speakers (distance, distance from walls & corners, toe in , etc). This is a tedious task (not done in a hurry) but it can result in some serious improvements. 3 Quote Link to comment Share on other sites More sharing options...
nickyboy6100 Posted December 23, 2020 Share Posted December 23, 2020 16 minutes ago, PrestonTom said: Guys, we still don't know what problem or inadequacy the OP is trying to solve. I am not sure where the recommendations are coming from. IMHO, more good will come from carefully and systematically optimizing the room placement of the speakers (distance, distance from walls & corners, toe in , etc). This is a tedious task (not done in a hurry) but it can result in some serious improvements. I agree that speaker placement is the biggest key to unlocking the true potential of the Chorus 2’s. I also recommend you try a powerful amplifier that can throw some wattage to them. That was the second biggest improvement with mine. Quote Link to comment Share on other sites More sharing options...
wetowne Posted December 23, 2020 Share Posted December 23, 2020 The biggest improvements I've made to my old Heresys was to tilt them back, toe them in, move my seat, move the rug and close the drapes. Total cost zero. 1 Quote Link to comment Share on other sites More sharing options...
Iteachstem Posted December 23, 2020 Share Posted December 23, 2020 Hello, I agree with a lot of what has been said already. What are you looking to improve? Refinish the cabinets for aesthetics? Change the sound? I have done many of the common upgrades/modifications to many Klipsch speakers I have owned, Including the Forte II's. Here's what my experience has been: The biggest changes (may or may not be an improvement, that's up to your ears to tell you) -B&C DE 10 and ebay horn concoctions (see technical modifications link) -Crites Titanium tweeter (google crtites Ti tweeter) -New/upgraded crossover components (DeanG on here does great work) -Room treatments( area rugs, curtains, etc) -Positioning them to work with your room's acoustics. Minimal changes (but fun to tinker with): -Cabinet bracing (see pictures of material I added to a Forte II) Waste of your time: -Adding dampening to the back of the horns (The only difference this makes is the sound they make when you knock on them with your knuckle...solution, don't knock on them with your knuckle) People will tell you they swear by certain modifications, but you have to remember, that some people spend thousands and thousands of dollars on pucks to keep their speaker wires off the ground, pricey cables with fancy wording to justify their product (But never want to accept a double blind audio challenge to test their fancy product against a regular, well made one) and many other ridiculous gimmicks that are meant to separate a lot of money from the owner. My best advice is try some things that make sense to you, let your ears be the judge and have fun enjoying your speakers! Picture: Forte II bracing - Front to back just below the woofer and a 1" by 1" brace attached between the woofer and the mid horn. 3 Quote Link to comment Share on other sites More sharing options...
mustang_flht Posted December 23, 2020 Share Posted December 23, 2020 Regarding the installation of the MAHL tweeter with B&C or Faital Pro, I point out that it is fully reversible, nothing is changed, just remove the MAHL and put the K79 Klipsch back in and the speaker will be original again 😜 3 Quote Link to comment Share on other sites More sharing options...
Alexander Posted December 24, 2020 Share Posted December 24, 2020 I would be careful with adding weight to the passive radiators. A few years back against Crites warnings I did this “mod” to a set of forte IIs. In the end as Crites told me what could happen did - and I had to have both passives re coned. 1 Quote Link to comment Share on other sites More sharing options...
geoff. Posted December 24, 2020 Share Posted December 24, 2020 Hello @nashvilletitans, I currently have my Chorus 2s in rotation in my livingroom. And I am loving them, again! The Chorus 2 is one of the most balanced Klipsch speakers I have ever listened to. The only mod (fully reversible, if I was so inadvisably inclined) so far are Ti tweeter diaphragms. The K-48 is a tight, articulate and powerful woofer that digs deep in the Chorus 2 cabinet, now the highs shine too. I have DE-120s in my LSI Splits and have no doubt they would sound even better on the LMAHL lens in the Chorus, or anything else for that matter, but I would expect it to need some attenuation in that application. They are more efficient than the stock tweeter the crossover was designed for. Maybe not if you like treble, I rarely listen flat... Bang for the buck, I would be very surprised if you don’t like the Ti diaphragms. I have never even considered going back on anything I’ve put them in. And congratulations on the 300b, too! 2 Quote Link to comment Share on other sites More sharing options...
mustang_flht Posted December 24, 2020 Share Posted December 24, 2020 Yes Lpad for B&C DE120 8ohms or other -3db = R1: 2.3; R2: 19.4 -4db = R1: 3.0; R2: 13.7 -5db = R1: 3.5; R2: 10.3 ... For other use http://www.mh-audio.nl/Calculators/att.html Quote Link to comment Share on other sites More sharing options...
Dave A Posted December 24, 2020 Share Posted December 24, 2020 The DE-10 is the one to use on the Chorus and it requires no modifications or "toning" down to sound really good. Although with four different hole patterns to mount to on the LMAHL if you want to tinker with different drivers you can do so. 1 Quote Link to comment Share on other sites More sharing options...
Alex Defender Posted January 5, 2021 Share Posted January 5, 2021 On 12/23/2020 at 7:08 PM, mustang_flht said: Hi, MAHL Horn K79 of @Dave A whith Faital Pro HF100/102 or B&C driver DE10/110/111/120, ... 😜 Do you think sound better the B&C or the Faital pro HF drivers? Quote Link to comment Share on other sites More sharing options...
mustang_flht Posted January 5, 2021 Share Posted January 5, 2021 Hi @Alex Defender @Dave A replied above, B&C DE10 best tweeter on Chorus II, let's trust his expertise. Quote Link to comment Share on other sites More sharing options...
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