Tom Mobley Posted December 29, 2003 Share Posted December 29, 2003 Pics in the next posts, forum seems to like to eat pics in the first post in a thread. Tom Quote Link to comment Share on other sites More sharing options...
Tom Mobley Posted December 29, 2003 Author Share Posted December 29, 2003 Yeah, Iknow, bad pic. Black switch box sitting on black Rega This is push button operated, there's connections for two amps and four sets of speakers. What I'm trying to figure out us what those resistor-looking things are. You think this think would maintain the right impedance with more than one set of speaks hooked up? You can push the button for all four sets of speakers at once. Tom Quote Link to comment Share on other sites More sharing options...
Tom Mobley Posted December 29, 2003 Author Share Posted December 29, 2003 looks like the part of the server that holds the images is down right now. Here's another view. Quote Link to comment Share on other sites More sharing options...
Tom Mobley Posted December 29, 2003 Author Share Posted December 29, 2003 the text on the back of the box reads: NPR Audio Corp. Wolfeboro, NH 03894 Made in USA Model NPR-4 Quote Link to comment Share on other sites More sharing options...
mike stehr Posted December 29, 2003 Share Posted December 29, 2003 Your probably right, they use the resistors for impedance matching, I dunno.... Those are some good sized ceramic cement boat resistors you got in there. Quote Link to comment Share on other sites More sharing options...
Tom Mobley Posted December 29, 2003 Author Share Posted December 29, 2003 this is the pic with company name I thought I attached above. Quote Link to comment Share on other sites More sharing options...
cyclonecj Posted December 29, 2003 Share Posted December 29, 2003 I have seen a couple of speaker switches that automatically put a load resistor in line when more that one switch is pushed in. This is probably one of those. Most just have an extra switch to do it manually. Quote Link to comment Share on other sites More sharing options...
Erik Mandaville Posted December 29, 2003 Share Posted December 29, 2003 I agree with Mike. Might be there to maintain a constant 8 ohm impedance, regardless of how many speakers are hooked up. If some compensation isn't made, hooking two pair of 8 ohm speakers in parallel would be just like connecting two 8 ohm resistors -- you'd get a 4 ohm load. Quote Link to comment Share on other sites More sharing options...
ChrisK Posted December 29, 2003 Share Posted December 29, 2003 Tom, I can see under the remote control in the picture that you use the same reference cd that I do. Chris Quote Link to comment Share on other sites More sharing options...
Klewless Posted December 29, 2003 Share Posted December 29, 2003 Another possibility for the resistors is to provide a load to each amp should all speakers be deselected. That way no amp would be left open circuited. It would take four resistors to pull that off for two amps. Quote Link to comment Share on other sites More sharing options...
Tom Mobley Posted December 29, 2003 Author Share Posted December 29, 2003 Chris, >>reference CD... That's hilarious. But, truth is, my son is doing quite well with those CD-based piano lessons. It's amazing how much he's learned. Now he's also getting real lessons weekly he's really picked up speed. We have an old (1906) Kranich-Bach conservatory grand piano he practices on. The action on it is kinda heavy but he's playing anyway. I'm amazed to see him sight-reading, playing by touch at 6 yrs old. Now he wants a guitar, but not an acoustic, but an electric. Tom Quote Link to comment Share on other sites More sharing options...
ChrisK Posted December 29, 2003 Share Posted December 29, 2003 ---------------- On 12/29/2003 12:48:47 PM Tom Mobley wrote: Chris, >>reference CD... That's hilarious. But, truth is, my son is doing quite well with those CD-based piano lessons. It's amazing how much he's learned. Now he's also getting real lessons weekly he's really picked up speed. We have an old (1906) Kranich-Bach conservatory grand piano he practices on. The action on it is kinda heavy but he's playing anyway. I'm amazed to see him sight-reading, playing by touch at 6 yrs old. Now he wants a guitar, but not an acoustic, but an electric. Tom ---------------- Tom, Totally understand the guitar thing. My 9yo son takes piano lessons and had been begging me to learn guitar. So for his birthday I bought him a Stratocaster Squire and Fender Frontman amp on sale at Guitar Center for $129 (pretty amazing deal I thought) and bought myself a Hohner acoustic/electric off eBay for $75 (another fairly amazing price). The deal is 1 hour piano practice gets him 1 hour on the guitar. Now we are learning guitar together by watching a DVD. We can play "Smoke on the Water" better than Deep Purple. Chris Quote Link to comment Share on other sites More sharing options...
Tom Mobley Posted December 29, 2003 Author Share Posted December 29, 2003 Hi, Chris What DVD is that? Can you provide a pointer? Is it a regular lesson type thing? Where's my buddy Google? {Edit: OIC, there's lots of them, which do you have? DO you recommend it?} Tom Quote Link to comment Share on other sites More sharing options...
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