rjrbass

The Klipsch S/N format for the period of your speakers is as follows: 1984-1989(?) YYWW#### Speaker 1 would be the 12th week of 1988. Speaker 2 would be the 0th week of 1990. This could be due to the manufacturing dates of Dec. 21st, 89 - Jan. 12th, 90. The format changed in 1990 to include the actual day of year in a different format altogher. I was pleased to read the comment made by Dave Potter, as my La Scalas have the AL3 crossover networks. - Richard

Dave in Nashville, Thank you for you drawing, much appreciated. I installed DynamiCaps and MusiCaps in my Cornwalls on Saturday, and couldn't believe the difference. I believe you that ALKs will make my La Scalas sing, but I was under the impression that the AL-3 was a good crossover to begin and it's only 14 years old.

Thank you to everyone who contributed in clearing up this mystery. I am still confused when it comes to the chamber behind the woofer. I understand this this is the area within the large centre "V". This area seems to be sealed off from the rear opening of the sound path. The way that I understand it, a sealed section would require more amplification to drive the woofer, as extension of the woofer must overcome the negative pressure created when the diaphram extends and creates a low pressure behind itself. However, these speakers are very efficient, not like acoustic suspension drivers, therefore there is something that I am missing or just do not comphrend. And yes, as IndyKlipschFan stated, this is pretty cool!

I have admired Klipsch speaker technology for years, and in June 2006 I had to opportunity to purchase 1978 Cornwalls, which were within driving distance. I was so impressed with the sound that soon after, I started my quest for La Scalas. In November I found 1993 La Scalas in a second hand store and jumped at the opportunity. (I got a steal of a deal as big ticket used items move slowely before Christmas.) Does anyone have a sketch that will explain the path of sound in the La Scala cabinet? The bottom access panels of the La Scalas have never been opened; I want to keep them this way. I believe that the woofer faces the back of the cabinet, but I am unfamiliar with the actual sound path. Is a triangular wedge used to disperse the sound to the sides of the cabinet? Does it run the full height of the bass bin? How large is the opening in front of the woofer? Is the back of the woofer sealed in the centre triangular wedge of the cabinet, or is the back portion of the woofer enclosure coupled to the folded horn section? Thank you, in advance, for your assistance.

Michael, First off, I often read your comments. I hope that you don't mind, but I need to pick your brain. I live in an apartment building, which has been renovated. The wall between my living room and my neighour's bedroom is drywall with no insulation. My neighbour can even hear my TV, just playing though the TV speakers. Next, my equipment, I have a pair of La Scalas and a pair of Cornwalls; the Cornwalls are stacked on the La Scalas. I play bass guitar, another bad thing for apartment living. I have just returned from Home Depot. My plan is to make a 2 X 4 frame, 8 feet by 8 feet, filling with Roxul sound insulation. The Home Depot expert advises that I cover the insulation with 1/2 inch MDF, as he claims that MDF is another great insulator for sound. I don't know how much bass response will be reduced with this project, however I believe that most of my TV sound will be trapped. I do not know how I would attach this frame to the wall; any suggestions? I don't know if this will solve my problem. Do you know how I can solve my problems, or offer any advice. Thanking you in advance for you time.

It is time to replace my 1978 Cornwall crossover B capacitors. I am trying to source the capacitors in Canada. I have read that some Klipsch Forum members use Hovland Musicaps which are avaliable in 2.0 uf and 4.0 uf; expensive (20 - 30 USD each) but available in Canada. Other members use Solen caps which are manufactured and and available in Canada, and less expensive then Hovland. The Solen caps are availabe in 2.0 uf and 3.9 uf and are availabe in many formats, Fast Caps, teflon, film and foil, etc. Which capacitor type and manufacturer should I use? OR Should I just import the capacitor kit from Bob Crites?

First off, please advise me if this is really poor advice. You might want to take an older receiver, with a good FM tuning section, and use this as your tuner. I wanted a budget priced tuner for background music in my apartment. I decided to use my retired 1970's Sansui G-4700 receiver as a tuner, by using the TAPE OUT connections. The receiver employs the older technology tuning section, with a quartz locked frequency locking circuit. A 2 foot piece of wire is all that I use as an antenna, and stations are plentyful. The result is great reception and no FM station drift.

I has the same problem a couple of years ago. I purchased a (new) Marantz PM7200; integrated amplifier, (no tuner), 95 watts per channel in class AB operation, for $625 Cdn (plus taxes). This amplifier has phono input, which I needed, and is getting hard to find, especially in the home theatre systems. The good news is that when I later purchased my Klipsch (efficient) speakers, I was able to switch the amplifier to class A operation (25 watts per channel). The speaker switch allows me to switch from my Cornwall speakers to my La Scala speakers. Now the bad news, the amplifier has been replaced with a new model which is class AB only. You might still be able to find one.