Papajoe

Hi Greg, Long time between conversations. Would it be possible to have a section on the site dedicated to listing the components that are needed for DIY refurbishment of each model? I realize that some models are pretty complex, for a casual rebuild. Longtime members like you, usually have some models, if asked. Maybe everyone can share their lists and put them in a specific section for all to use? Thanks, Papajoe

A rule that I always go by is " for every pair of speakers that I buy, I need to have a system to power them". That helps to keep down the 'want to buy more speakers' to a minimum. Papajoe

Brian D. I read your post and thought to myself 'Compression'. You know, I cannot ever remember hearing that term used in terms of 'vinyl' . It seems to me that the 'term' was first used in regards to digital recordings because of the large size of the sound files and the restraints of the recording 'medium' being used. Papajoe

Wizard.

Happy trails- I will second that.

Zumbini- You are correct about the wrong amp. When I first went to his house and started talking to him about I thought was a possible conflict with his amp, he looked at me and said "I am going to use the TFM-15 not the TFM-25. Then I remembered that I had also sold him a TFM-15 to use just for this purpose. Boy, did I feel 'dumb'. LOL Papajoe

Maybe, I did not put that correctly. He will be using the 'A' speaker outputs on the amp to run his outdoor speakers. Saving the 'B' output for a second pair of speakers, later.

Well, I finally got the info on that 'switch'. It's an Audiosource AE100VC. It is an 'Impedance matching volume control'. It is used to allow you to run up to 16 '8' ohm speakers off of one channel of an amp without overloading the amp. It has a slide switch that allows you to choose 1x, 2x, 4x and 8x, depending on how many speakers you have. I believe that it presents a 4 ohm load to the amp. It also has a master volume control included. He will be running 2 pairs of 8 ohm speakers. The A,B, A+B switch is just that. He is using one channel of his TFM 15 amp to run these outdoor speakers. The other channel will be used to run a wireless speaker set into his shop. The whole thing will be controlled by the 'second zone' on his CT-17 preamp. Doesn't sound that confusing anymore. Papajoe

Hey, I'm a pure bred Italian, we do some of our best planning with a 'wine' catalyst. Papajoe

Sorry about all the confusion. I am confused myself and if I am confused that is not a good thing. My neighbor and I talked about this during one of our 'after 5 PM meetings' and you know what that means 'wine' will be present. More about this later. We need at least one more 'meeting' for clarification. Papajoe

He is wanting to have each location running stereo. I will find out about the switch. Papajoe

Hi All, My neighbor is going to use one channel of his TFM-25 to drive two sets of outdoor speakers. He can't use both channels due to a physical problem. He only ran 1 set of wires from the amp position to the switch area when wiring his house. So, he will try to accomplish this by feeding one channel of the amp to a splitter switch that has some sort of amplifier built in . (I have not seen the unit.) Its one of those 'A', 'B' and 'A' plus 'B' ones. Will he need to use 16 ohm speakers outside,so that when he chooses 'both' he doesn't overload the amp? I seem to remember something about speakers in parallel. Thanks, Papajoe

Welcome to the group. Papajoe

Welcome David.

Morris- Thanks for taking the time to get into your NASA TFM-42 and sending photos. Your schematic helps me to understand what was done and how it works. Do you think that was done by NASA or did Carver specially modify the amps for them? I did look at the connections when I first got the amp; but, do not understand enough to tell where they go on the board. I located ,on the web, of course, the original tech booklet that was put out by Thiel when they first introduced the CS 3.6s. It states that the speakers are rated at 100-500W @4 Ohms. So, we have decided to not do anything to the TFM-42's output after all. Just hook them up and listen to the Carver magic. Papajoe