Limberpine Posted October 2, 2020 Author Share Posted October 2, 2020 The woofers look identical, but @RandyH000 indicated in the beginning of the post, that there was something odd about them, so that is why I was asking. Thank you to everybody for the help! I'm glad to know more about these and their history and I'm certainly enjoying them with my SS amp, and will look to enjoy them with a tube amp here in the future. 😁 1 Quote Link to comment Share on other sites More sharing options...
OO1 Posted October 2, 2020 Share Posted October 2, 2020 1 hour ago, Limberpine said: The woofers look identical, but @RandyH000 indicated in the beginning of the post, that there was something odd about them, so that is why I was asking. Thank you to everybody for the help! I'm glad to know more about these and their history and I'm certainly enjoying them with my SS amp, and will look to enjoy them with a tube amp here in the future. 😁 Actually , you posted a picture of the magnets of the woofers which is the answer I needed , your speakers have the K33E woofer - between 1975 and 1979 , KLIPSCH was using 2 woofers in Cornwall speakers , the K33E / K33B - Here are 3 pictures - 1st is the K33E before 1979 - 2nd is the K33B - check out the differences Quote Link to comment Share on other sites More sharing options...
OO1 Posted October 2, 2020 Share Posted October 2, 2020 5 hours ago, Limberpine said: I see. So any thoughts at to why the woofers look different? I know I'm the 3rd owner. Just curious. klipsch used 2 different brands of woofers between 75 and 79 -both were of identical specs -but both don't look identical - Quote Link to comment Share on other sites More sharing options...
Limberpine Posted October 2, 2020 Author Share Posted October 2, 2020 Thanks @RandyH000! Is it correct that these speakers are 102db efficient? Quote Link to comment Share on other sites More sharing options...
OO1 Posted October 2, 2020 Share Posted October 2, 2020 Just now, Limberpine said: Thanks @RandyH000! Is it correct that these speakers are 102db efficient? yes , the sensitivity is 102db at 1 watt / 1 meter ---rating is 100 watts /400 watts peak - Quote Link to comment Share on other sites More sharing options...
Limberpine Posted October 2, 2020 Author Share Posted October 2, 2020 Thanks! Quote Link to comment Share on other sites More sharing options...
OO1 Posted October 2, 2020 Share Posted October 2, 2020 4 minutes ago, Limberpine said: Thanks! I Forgot to tell you to eventually plan for replacing the capacitors in the crossovers unless this was already done by the previous owners , my Cornwall 1 ---1979 capacitors were really bad , although the sound was still ok , and the replacement was relatively inexpensive with quality parts from PE - the sound greatly improved vs the old caps - 1 Quote Link to comment Share on other sites More sharing options...
mustang_flht Posted October 2, 2020 Share Posted October 2, 2020 18 hours ago, Limberpine said: Here are some more photos of the inside Hi, I think your K33E are from the 21st week of 1978, the manufacturer code N ° 67 is that of Eminence https://www.eminence.com/faqconc/how-can-i-tell-how-old-my-speaker-is/ 1 Quote Link to comment Share on other sites More sharing options...
Limberpine Posted October 2, 2020 Author Share Posted October 2, 2020 55 minutes ago, RandyH000 said: I Forgot to tell you to eventually plan for replacing the capacitors in the crossovers unless this was already done by the previous owners , my Cornwall 1 ---1979 capacitors were really bad , although the sound was still ok , and the replacement was relatively inexpensive with quality parts from PE - the sound greatly improved vs the old caps - Very good. What is PE? Or can you provide a link as to where to buy capacitors for these? How hard is the replacement to do DIY? Or should I just take it to a shop to have it done? I think they sound fantastic now, but I am coming from Acoustic Research AR-2a's which are just fine, so the difference has been stellar. Quote Link to comment Share on other sites More sharing options...
mustang_flht Posted October 2, 2020 Share Posted October 2, 2020 Please note this is the date of the K33E in the photo, but not necessarily that of Cornwall. I have 2015 Cornawall IIIs with 2014 and 2015 Speakers inside For new capacitors choice MKP 😉 Solen, Audyn Cap and Jantzen are very good https://www.parts-express.com/cat/crossover-capacitors/292 Quote Link to comment Share on other sites More sharing options...
OO1 Posted October 2, 2020 Share Posted October 2, 2020 Just now, Limberpine said: Very good. What is PE? Or can you provide a link as to where to buy capacitors for these? How hard is the replacement to do DIY? Or should I just take it to a shop to have it done? I think they sound fantastic now, but I am coming from Acoustic Research AR-2a's which are just fine, so the difference has been stellar. PE is PARTS EXPRESS---replacement is quite easy , you unscrew the drivers wires on the barrier strip , ( tag the wires -right -left ) -then remove the crossovers - unsolder the wires going to the old capacitors , one at a time -solder the new caps in , use a hot glue gun and lay some glue to seat the new capacitors ------that's it ----screw in the wiring in the reverse order - Quote Link to comment Share on other sites More sharing options...
Limberpine Posted October 5, 2020 Author Share Posted October 5, 2020 On 10/2/2020 at 3:59 PM, RandyH000 said: PE is PARTS EXPRESS---replacement is quite easy , you unscrew the drivers wires on the barrier strip , ( tag the wires -right -left ) -then remove the crossovers - unsolder the wires going to the old capacitors , one at a time -solder the new caps in , use a hot glue gun and lay some glue to seat the new capacitors ------that's it ----screw in the wiring in the reverse order - Are there any walkthrouhgs on the forum that I can look at to guide me? Quote Link to comment Share on other sites More sharing options...
mustang_flht Posted October 5, 2020 Share Posted October 5, 2020 @Limberpine It's for Heresy or KHorn, but it's the same for Cornwall, just look at the values of the capacitors to change on your network If you want this kit >>>>> https://critesspeakers.com/crossover_repair_kits.html Price >>>> https://critesspeakers.com/prices-crossover_repair_kit.html If you put MKP it will look like this at the end Show us pictures of your networks and capacitors with the values written on them 😉 Normally your Cornwall type B has 2 capacitors, 1 of 4µF and 1 of 2µF. To replace them by MKP you can make 2µF with 2 capacitors of 1µF in parallel. To make 4µF you can put for example 1 of 3.3µF and 1 of 0.68µF in parallel it will be 3.98µF it is similar to 4µF Here is the diagram of Network type B of Cornwall 1 Quote Link to comment Share on other sites More sharing options...
Limberpine Posted October 8, 2020 Author Share Posted October 8, 2020 On 10/2/2020 at 3:52 PM, mustang_flht said: Please note this is the date of the K33E in the photo, but not necessarily that of Cornwall. I have 2015 Cornawall IIIs with 2014 and 2015 Speakers inside For new capacitors choice MKP 😉 Solen, Audyn Cap and Jantzen are very good https://www.parts-express.com/cat/crossover-capacitors/292 What is MKP? Should I just use the Bob Crites package, or go to PE and choose from the other brands you mentioned? Quote Link to comment Share on other sites More sharing options...
mustang_flht Posted October 8, 2020 Share Posted October 8, 2020 MKP = polypropylene film capacitor, these are the best capacitors for network speakers. If you don't want to bother chose the Bob Crites Kit, because he had the capacitors made with the correct values for filter B = 4 and 2µF. On the other hand, if you are a DIY enthusiast you can order capacitors of standard values and combine them in parallel to make the right value. In this case you can order capacitors known for their sound quality, I recommend Jantzen superior Zcap red, I told you above to check the values of your filter and if you have 4 and 2 µF made 4 with 3.3 + 0.68 and 2 with 1+ 1. https://www.parts-express.com/jantzen-audio-10uf-800v-z-superior-capacitor--027-476 nb: I'm French, so be careful sometimes my English is a bit twisted, sorry 1 Quote Link to comment Share on other sites More sharing options...
mustang_flht Posted October 8, 2020 Share Posted October 8, 2020 values of the MKP capacitors Bob Crites kit for Type B Klipsch Example of assembly with MKP Jantzen Superior Zcap Red capacitors for Type B Klipsch Example of network with capacitors in parallele : big black and grey and upper small black and red 1 1 Quote Link to comment Share on other sites More sharing options...
Limberpine Posted October 9, 2020 Author Share Posted October 9, 2020 Ahhhh, I see. So its just a lil bit more soldering and then thethering in place. 1 Quote Link to comment Share on other sites More sharing options...
mustang_flht Posted October 9, 2020 Share Posted October 9, 2020 Yes 1 Quote Link to comment Share on other sites More sharing options...
Limberpine Posted October 9, 2020 Author Share Posted October 9, 2020 Will the existing capacitors have their value on the side of them? Or will I need to open them up to see the values? 1 Quote Link to comment Share on other sites More sharing options...
Limberpine Posted October 9, 2020 Author Share Posted October 9, 2020 As you can now see, this is all brand new to me......I knew someone was going to chide me for that last question. HA! Quote Link to comment Share on other sites More sharing options...
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