OldGuy

Rich: I belive the guy is spreading a pile of baffle gab. A acetate is cut on a lathe from a master tape. This acetate has an ID either scratched into it or in the case of a large company a stamp with the ID is used as the identifier during processing etc. This is found on the inner diameter between the grooves and the label. At the record stamping plant the acetate is plated to produce a matrix. The acetate is NG now but the matrix is used to produce stampers or another negative to produce more stampers depending on the production run. Sometimes there are problems or the record is reissued and a new acetate must be cut. Due to the nature of humans the gentle soul who remasters the new acetate might use slightly different EQ or some little difference from the original and you get a disc that could be from the same master tape but will sound different. I have been in mastering rooms where the operator who is allowed a lot of leeway has adjusted the playback azimuth to his taste, or superior set of golden ears. Anway this is a short answer why this gent could find different versions and want to call them hot pressings. Norm

I run a Carver Receiver and had to take the four resistors and raise them above the board. Also I increased the wattage. No problems afterwards. Another problem that came up was distortion. This was due to bad contacts in the relay used for A/B speaker selection. Sometimes I could self clean the relay by many times switching betwee A & B but I finally pulled the relay ,cleaned contacts and retensioned it. Well worth the effort and the RECEIVER still drives my Khorns. Hope you get it working ok. Carver produced some good equipment and this unit drives the Klipsch speakers more than adequately. Norm

Hello Jon. Have a Carver rcvr. that has driven my Khorns for a lot of years. The four resistors you mention I replaced with a higher wattage and away from the. board. If you can do this you will probably find you scored a receiver that might please you, at the right price.

Sorry Hit the post button to soon

So True. I remember when back in1949 I worked for Ma bell ( Before she became a MF) The first day they showed the group of new recruits a safety film where the star fell of a telephone pole and left his ring and associated finger at the the pole step. My wife could not talk me into a wedding ring and after too many years working around electronic equipment I never did wear another ring.

Hello Born2Rock:: If you would like a outlook that I feel is worth visiting go to http://sound.westhost.com/articles.htm and then scroll down to cables. If you read these articles some of the bafflegab some people like to put out about speaker cables will be made clear and you will possibly be saved from buying expensive "monster" cable. Norm

Good point, but I hope if the the rctifier is not solid state you leave in the tube rectifier. Otherwise not much is going to produce any voltage to reform caps.

Stay American. Upgrade your speakers for the best bang for your buck, and buy the Cornwalls. If you have the room go all out and try to pick up a pair of Khorns. Others in this forum have been lucky and found good used ones for the amount you have to spend. Remember you are changing an original acoustic signal that was recorded to a medium using electronic techniques and then you bring it back to acoustic with your system. Others agree, the speaker is the most important part of the system. After you get great speakers and maybe a bit of work on your room acoustics than you will probably find that any equipment changes do not really change the sound unless you really have a set of " GOLDEN EARS".

As I asked for the AA schematic because one of my Klipschorns was sounding a bit tired I spent a while going back and reading the old posts back to 2002 on crossovers and capacitores, WOW. Lots of feelings. Anyway I bought an ESR meter and had a great time. I forgot how darn heavy these horns are to move around. Anyway the ESR on the old oil capacitors where all beow 1.0 ohm. Physically they looked great, no leaks etc. I got out the capacity meter and all looked good. So back to basics. This I should have done before buying the ESR meter. Anyway I checked the resistance of the drivers all nominal. Just took all connections apart, cleaned and tightened everything and fired up the amp. Great sound again out of both speakers and I did not replace any parts. I hope this does not make people think changing to new caps or upgrading from the PWK designed crossover is not a good idea. But I do hope it points out that there are paths to try before changing parts.

Hello Amy Appreciate knowing why in the new forum layout I have to shift the block of the message left and right to see the whole information block.. Sorry to be such a computer illiterate but will appreciate an answer. Thanks Norm

---------------- On 8/25/2005 5:08:16 PM BobG wrote: I've told this story here before but it was a few years ago so... I managed a hi-fi store that opened in 1975. Was my second job selling audio. The first sale ever made when we opened the door was a pair of Khorns with a Crown IC-150 preamp and DC-150 power amp. Maybe not the best amp choice for the Klipsch but not a bad way to start a new store. We had a good run. That store just recently closed after several moves and a change in ownership. ---------------- I was building amps back in 1953 ( before hi-fi) and got a customer who wanted a decent system for his shiny new Klipschorn. I built a copy of the Williamson amp and a decent pre-amp and when I heard it, it blew me away. I had an RCA LC1B loudspeaker at the time that I thought was the best. I learned what Bass could sound like properly reproduced. Unfortunately it took me for various reasons untin 1976 before I became a Klipschorn owner. I am still happy with them.

Thanks Bob. Will have to dig in and find a problem with one of them. Perhaps I should just do as suggested earlier and just replace the caps in both of my 76 units. Norm the old guy

Would appreciate if someone could post or tell me where I could get a schematic of my AA networks including part values. Thanks

It is great to see many people playing vinyl, but I would like to point out that their are a lot of technical steps to get the best out of your turntable and cartridge. It is not quite as easy ro connect a MM or MC cartridge to a pre amp as it is to connect an pre amp to an amp. Thre have been discussions lately on tone arm setup and cartridge alignment. Great. Not covered has been the requirement to adjust for the inductance of the cartridge and the proper resistive and capacitance loading. I find it amazing that golden ears make judgements on equipment just plugged in and not tested by a frequency run. A start to bring some up to speed is checking out http://www. hagtech.com/loading.html I have attached an old article from an audio mag plus part of the instruction manual from my Thorens turntable. Hope I have not bored you but it is worth investigating if you want to set up for the best sound to drive our Klipsch speakers. Cartridge Loading2.pdf

Attached is a 1974 price schedule. I checked and bought klipschorns in 76. The price increase in Canada was about 1.5% in the two years since I picked up the price list.If anyone is interested in 74 or 76 original literature I could send it along. Norm scan.pdf

Thanks for the info about new crossovers. I will contact Klipsch on Tuesday. Norm ---------------- On 7/3/2005 8:14:20 PM William F. Gil McDermott wrote: Please know there is also a factory update package. This will bring yours up to the design of the current product. The new factory crossovers are very complex. Now that we're discussing it, it is a bit odd that this is not well advertised on the home page. You can call 1-800-KLIPSCH to investigate further. Gil ----------------

I bought my Khorns in 1976. I still think they are the greatest but am curious as to what updates have been done by Klipsch and or dedicated users.