Good2BHome

This minnow is going to jump in with the big fish. Mobile's original premise was not to change the enclosure, but the thread has drifted that direction. I've been giving some thought for several weeks to constructing a test Cornwall enclosure out of 3/4" Corian, retaining the original dimensions, and using Roger Floth's stiffening recomendations. This would result in an enclosure weight (sans speakers) of about 136 lbs (without Roger's mods) compared to a stock weight of 73 lbs (an estimate on my part). I am prepared for "INCOMING" slings and arrows. Mike This message has been edited by Good2BHome on 02-04-2002 at 08:51 PM

Hello, I'm thinking of buying either a McIntosh C-32 or C-33. On the back panel of a McIntosh C-32 Pre Amp, how are Output 1 and 2 different from the Main and Line? On both the 32 and 33, are Output 1 and 2 subject to the volume control on the front panel? And can I use a "Y" adapter from one of the "Outputs" to create a Center channel output? I currently have a C-26 and do not want to lose the Center channel with an upgrade. Thanks Mike ------------------ 3 Channel Audio: 1980 Cornwalls Klipsch Quartet as Rear The following I bought NEW in 1971: McIntosh MR-74 McIntosh C-26 McIntosh MC-2505 This message has been edited by Good2BHome on 02-01-2002 at 12:49 PM

Ed Great picture and great work. It helps me with the visual aspect of the risers. It looks good with the 4" front dimension. My desire is to make them 2 1/4" high (the thickness of 3 layers of 3/4" plywood or other denser substance(s) ). This will work visually based on your picture. I must allow for a future WAF. "Love me, Love the Cornwalls." Applications are currently being accepted. frt8dog Thank you for the confirmation on the factory dimensions and being hollow. Allan Songer You and I are on the same page as to increased weight and added stiffness. These are also my thoughts. I appreciate the confirmation. My additional thought is to attach the risers through the bottom of the cabinet, so they may be detached if necessary in the future. I haven't given this much thought yet, but realize I will have to deal with the port. This would help in moving or returning to stock condition. Can anyone provide a description and/or picture of how the factory risers are attached to the bottom of the speaker? Thanks to all, Mike This message has been edited by Good2BHome on 01-29-2002 at 12:54 PM

Gentlemen and Ladies: At the risk of commiting a Forum social blunder, I'm bring this thread to the top. I would appreciate additional comments/information on the sound differences with and without Cornwall risers. Any pictures or construction information would also be appreciated. Respectfully, Mike This message has been edited by Good2BHome on 01-25-2002 at 08:36 PM

These are great prices!!! One sheet will do two Cornwalls. I may place an order Mike

This is a very good thread!! If someone can verify what crossovers they have in their 1982, 1983 and 1984 Cornwalls, we all will have an more accurate picture of crossovers in the Cornwall. Not perfect but closer. Anyone?? Mike This message has been edited by Good2BHome on 01-21-2002 at 11:21 AM

Based on previous posts I've read here, 1984 was a transition year for the Cornwall I's to the Cornwall II's. Some had II's tweeters some had II's tweeters and mid-range and are referred to as Cornwall I 1/3 and I 2/3, respectively. And sometimes referred to as Cornwall I 1/2, although Klipsch never used any of these terms. Do a search for Cornwall 1984 (both words) and you will find about 13 posts. Read an entire post as some are confusing in the beginning. Be sure to take the backs off the speakers before you buy, to see what you will get. Best of Luck, Mike This message has been edited by Good2BHome on 01-19-2002 at 10:38 AM

Hi Ed, I too am interested in adding risers both for sound and appearance reasons. quote: In regards to the Cornwall risers. They are 23 1/2 inches X 14 1/2inches X 2 inches. They are not angled just 4 pieces of birch plywood with the above dimensions mitred at the corners. They are screwed to the base of the cabinet. The description above leads me to believe that the original risers are hollow (i.e. open on the bottom) since there are only four (4) pieces of plywood. Is this correct? It would seem that an additional piece on the bottom would be better? I would hope someone would post a picture to confirm. I would appreciate comments about the changes (good/bad) in sound quality. Mike ------------------ 3 Channel Audio: 1980 Cornwalls Klipsch Quartet as Rear The following I bought NEW in 1971: McIntosh MR-74 McIntosh C-26 McIntosh MC-2505 This message has been edited by Good2BHome on 01-19-2002 at 10:47 AM

Jerry, Suggest you do a search on "K-55" and/or "K55" the answer with several suggestions is somewhere in previous posts. I failed to look where you are located when I started this, but most large cities like Dallas have a speaker repair business that has been there for years. A big part of their business has come from clubs that can't keep DJs from overloading their sound systems. And there is Klipsch themselves. Mike ------------------ 3 Channel Audio: 1980 Cornwalls Klipsch Quartet as Rear The following I bought NEW in 1971: McIntosh MR-74 McIntosh C-26 McIntosh MC-2505

Edward, I'm in the Dallas/Ft Worth area and would be willing to give them a look. I am curious too. This person did a very poor job of advertising his product, but you may have found the rainbow???? Send me an email: xxxxxxxxx.com and we'll see what we can workout. Mike ------------------ 3 Channel Audio: 1980 Cornwalls Klipsch Quartet as Rear The following I bought NEW in 1971: McIntosh MR-74 McIntosh C-26 McIntosh MC-2505 This message has been edited by Good2BHome on 01-05-2002 at 07:01 PM

With regard to the 1984's, They may be Cornwall's, Cornwall 1.5's or Cornwall II's. It will depend on the drivers. If the 77's are in acceptable cosmetic shape, they would be my choice if they have original drivers. Mike ------------------ 3 Channel Audio: 1980 Cornwalls Klipsch Quartet as Rear The following I bought NEW in 1971: McIntosh MR-74 McIntosh C-26 McIntosh MC-2505

Upon further study the two (2) opening bass vent was still in existance in 1977 as evidenced by mobile_homeless's 1977 Cornwalls as shown on his Link. Therefore maybe they were changed from 2 to 3 vents between week 14 and week 16 (based on P Ward's pictures) of 1978. It's possible. I still stand by my other two comments #1 and #3. There is a new listing of 1978 Cornwalls on eBay http://cgi.ebay.com/aw-cgi/eBayISAPI.dll?ViewItem&item=1317167211 . I emailed him this morning for the serial numbers. His reply was 17S717 and 17S718. Mike

Rick, I agree these Cornwalls http://cgi.ebay.com/aw-cgi/eBayISAPI.dll?ViewItem&item=1315421375 do look a little odd. They say they are 1978's based on the stated serial number of 14S942. But........ 1) There is only one 1 opening in the grill board for both of the horns. I thought this was done much LATER, maybe with the Cornwall II's 2) There are two openings for the bass port which was discontiued EARLIER than 1978. I have consulted my personal ebay Reference Library and find a 1978 pair (with risers also) that has three openings and on this pair I can SEE the Serial number to establish them as 1978. 3) The woofers appear to have been re-coned or replaced. Could the these be Frankenstein Cornwalls? I would hope others would comment to confirm (or correct) Mike ------------------ 3 Channel Audio: 1980 Cornwalls Klipsch Quartet as Rear The following I bought NEW in 1971: McIntosh MR-74 McIntosh C-26 McIntosh MC-2505 This message has been edited by Good2BHome on 12-31-2001 at 02:00 PM

I would be interested in the pilgrimage. I made the trip in 1972 and met Paul Klipsch. After a tour of the plant by the GM, he spent over an hour giving me demonstrations and lessons in acoustics. It was a very interesting trip. The following year I bought K-horns. A trip back would be fun. Mike ------------------ 3 Channel Audio: 1980 Cornwalls Klipsch Quartet as Rear The following I bought NEW in 1971: McIntosh MR-74 McIntosh C-26 McIntosh MC-2505

The research was completed. Suggestion to future searchers: Search both diaphragm and diaphram replacement. I called Electro Voice @ 1-800-685-2606. They quoted 21.70 + 4.00 shipping each. They would do the repair for 25.00 each, however they were out of stock. They recommended an Authorized Service Center in Dallas. I called the repair center. Their price was 22.00 + tax and would do the repair for 12.00 each while I waited !! Well, for this price I don't need to learn how to do it (but I did). Yes, I did both K-77's, that seemed to be the consensus. They will accept speakers in the mail for repair. They are: Freeman-Tuell Speaker Repair Service 7911 Ferguson Rd. Dallas, TX 75228 1-214-324-1132 The K-77's are now installed in the Cornwalls. They sound great and I'm preparing for the next step in the Refurbishment. Thanks to all suggestions both on and off line. Mike ------------------ 3 Channel Audio: 1980 Cornwalls Klipsch Quartet as Rear The following I bought NEW in 1971: McIntosh MR-74 McIntosh C-26 McIntosh MC-2505

Congratulations Chris, I have a question: quote: -Replaced the stock binding posts with Cardas 5-way. Where did you find them? What other binding posts did you consider, if any? Mike ------------------ 3 Channel Audio: 1980 Cornwalls Klipsch Quartet as Rear The following I bought NEW in 1971: McIntosh MR-74 McIntosh C-26 McIntosh MC-2505

I'll assume that your problem is damage of some kind. If that is the case, Dallas has a first class speaker repair organization. I discovered that 2 weeks ago. They have been in business 18+ years. They are a Electo Voice authorized center, but will work on anything. Freeman-Tuell Speaker Repair Service 7911 Ferguson Rd Dallas 214-324-1132 I considered their prices very reasonable. Give'm a call. If you have questions let me know. Mike ------------------ 3 Channel Audio: 1980 Cornwalls Klipsch Quartet as Rear The following I bought NEW in 1971: McIntosh MR-74 McIntosh C-26 McIntosh MC-2505

Justin McIntosh face plates are coated?/painted?/etched?/? with the lettering and then coated?/painted?/etched?/? with black. The problem is some times the black seperates from the glass. It is reasonably common around the phonejack after a couple years and this is not really a problem, at least to me. But I see a significant amount of McIntosh on eBay and some locally that has bubbles that does take away from the appearance. I'm looking for the cause of this "scourge". You can purchace a new one (if available) from McIntosh for about $102. But I want to know what causes it. An example is attached. In all corners except the upper right, there is serious bubbling on the edge. Mike ------------------ 3 Channel Audio: 1980 Cornwalls Klipsch Quartet as Rear The following I bought NEW in 1971: McIntosh MR-74 McIntosh C-26 McIntosh MC-2505

Does anyone know the cause of the bubbles in McIntosh Glass Face Plates? If this is not the correct Forum please let me know. Mike ------------------ 3 Channel Audio: 1980 Cornwalls Klipsch Quartet as Rear The following I bought NEW in 1971: McIntosh MR-74 McIntosh C-26 McIntosh MC-2505

I'm doing the searches suggested and will post the results of the research. I appreciate the responses so far. Mike This message has been edited by Good2BHome on 12-12-2001 at 05:34 PM

Hifiguy, In your first post you mentioned: quote: I have the older Speakerbuilder article on reinforcing the Cornwalls internally and the port path modification. Would you be willing to share the article? I'm a new Cornwall owner, also, but not new to Klipsch. Mike

Who says: "You can't go home". I recently purchased a Cornwall pair that needed some attention, but the price was so right I could not refuse and they sounded great even with their "needs". In 1972 I bought new a pair of Klipschorns, but alas they were sold when we moved to a house they would not work in (about 1980). The Cornwall's serial #'s are not matched but close: 24U701 and 24U753. Step #1: Repair the one bad K-77-M. Testing the speaker for continuity, gives an result of an open circuit. My questions are: 1) How difficult is it to replace the K-77-M diaphragms? Is any one willing to walk me through the process? 2) Is it wise/necessary to replace the diaphragms for both K-77-M's. To my ears the other one is fine??? 3) Are ALL replacement diaphragms actually made by Electro Voice? If there are others, are they any good. 4) Does anyone have suggestions for sources in addition to Klipsch for the diaphragms? or shops that will do the replacement for me. 5) Do the Electro Voice T-35 mounting holes match the K-77-M? 6) The serial #'s of my two K-77-M's are 48781(bad) and 19005. The numbers are pretty far apart, unlike the serial #'s of the other 2 speakers. Makes me wonder if the entire K-77-M was replaced in the past or if one Type "B" crossover may be bad. Is there a way I can test it? I only have a Digital Multimeter. Having said all this "dry" stuff they SOUND GREAT. Any and all advice is appreciated. If some will tell me how I will post pictures. Mike

I'm new to the Forum, but not new to Klipsch or woodworking. A black lacquer (Piano) finish can be done by a amatuer with practice. However I would suggest that you pactice on something else first. Look in your local Library for books on refinishing or furnature refinishing. Good Luck, Mike