3M_Audio

Welcome Steve!

Welcome!

Welcome!

Welcome! If you haven't already found them, TCS has many of the Carver service manuals in the 'Manuals and Specsheets' pulldown at the top of any page.

Welcome @BigC3103! Glad you found the service manual - keep us posted on your progress.

Welcome! Regarding MOSFETs, they have some advantages at high frequencies and in terms of efficiency although they can be a bit picky to bias, but in any well-designed audio amplifier circuit, using MOSFETs or BJTs should produce really nice output. Good luck with the search for some DCM speakers. How much space do you have? The large floor standing models like the TF400s sound great but they do take up a lot of space.

A year is nothing, lol Glad you've been successful!

Thanks for sharing. It's always interesting to see what selections are made for speaker testing. I would agree with some of what's posted, don't agree with some others, and will admit I don't even know some of the titles. For a lot of design work, it's mostly listening to mono pink noise. But here's a list of some actual music I work with for car audio that you might like to try: Steely Dan, "Hey Nineteen" - lots of sharp, clean hits. Tom Petty, "Learning to Fly (Live)" - At one point the crowd starts singing along and Tom's voice drops out and if the system is good, you can get a real sense of the size of the auditorium. If the system isn't that great, the soundstage sort of collapses. Bruno Mars, "24K Magic" - very wide soundstage with a lot of instruments. Very full range. Winterplay, "Billy Jean" - simple clear female vocal with an upright bass and a couple other instruments. Simpler is sometimes better. Great with Sonic Holography. Dave Brubeck Quartet, "Take Five" - Listen for the hi-hat and cymbals in intro. Cymbals are hard to record and reproduce well. This recording is very natural and instruments are well spaced. Straight no Chaser, "Homeward Bound" - all a cappella and the vocals span all the way across the stage. You should be able to hear each person singing. I think most of these can be found on YT. Here's Winterplay which I never get tired of listening to:

Welcome back! Sounds like your careful planning yielded a very nice system. Looking forward to some pics.

Is there some general description of the event somewhere?

Welcome @Stagam!

Latin for 'New Day' or 'New Life' - what I'm trying to give some of these old pieces of equipment. As to the voice, many, many years ago I was in broadcast radio - until I learned that it didn't pay any money, lol. But I'll be doing more videos - that Golden Hour clock I picked up may be next.

Welcome!

I finally put together a 10-minute video of the restoration work on these. I'd appreciate everyone's feedback - too short, too long, too much info, not enough info, etc.

Welcome @joebhold! Sounds like you have some nice gear and good fortune for you with that TFM-45 - nice amp. Looking forward to pictures and updates on your work.

Welcome!

Welcome Rick. I haven't worked with an MXR-130 so can't give you any specific input on that volume control, but the service manual & parts list can be found here by clicking on the 'Manuals and Specsheets' link at the top of any page. And a search here might also get you some good info. The MXR-130s are pretty popular units and serviceable. And there are a couple of Carver-specialty service outfits you can also contact: Nelion Audio Repair Carver Audio Repair

Understand. Sounds like your home project load is similar to mine, lol.

Welcome @TKM! Nice backstory on your MXR 130. There's plenty of info here on all the Carver receivers. Service & Owners manuals are in the 'Manuals and Specsheets' link at the top of any page. And the search function will get you some good threads on the MXR 130. I would say that given the number of failures you've had with the unit, I'd suspect that there's something else going on other than really loud music . It could very well be one of those situations where a contributing cause of failure isn't being identified and corrected, and this is leading to subsequent failures. At this point are you looking for a good repair source or are you planning to work on it yourself again?

Welcome! Tons of threads here on both the TFM 15 and the C1. And if you haven't already found them, the service and owners manuals are available for download from the 'Manuals and Specsheets' link at the top of any page.

I'll echo @Yamacarver that your BT receiver can connect right to your AUX input. However, you did mention that your current input switcher was a bit 'dirty', so you may want to think about investing in a new switcher. For an inexpensive unit, I have been impressed by the switchers from Douk Audio. They have completely passive units but also some active units that have BT receivers built in along with clocks, spectrum analyzers, level controls, remotes, etc.

Finished and sounds pretty nice. Beautiful cabinets - real walnut veneer even behind the grill cloth. I think if these were mine, I'd leave the grills off and remove the velcro. I'll shoot some video of the second speakers to share. Owner has me doing one at a time so he can still listen to something

Bing!

For any of you following along. My friend decided to have me replace the (3) caps in the crossover so that's done: And the new surround is glued into place. Most of the work is scraping off the old adhesive on the basket frame - it has to be perfectly clean. I find that with most of these speakers from the late 70s and onward, the spider holds the voice coil into proper position with only very minor positioning required, so shimming isn't necessary.

Welcome @LSD! I just picked up a well-worn M400 myself to restore - a neat piece of engineering.