ThomasL
Supporting Actor
- Joined
- Mar 13, 2001
- Messages
- 963
Hi, I tracked down the manual for my Radio Shack "high power 4 speaker selector" switch box and it states the following ohm rating that the receiver/amp will see when certain combos are chosen:
A or B or C or D = 8 ohms (this makes sense to me)
A and B = 16 ohms (not sure how this works)
A and C, A and D, B and C, B and D, C and D = 4 ohms (this makes sense to me)
A and B and C, A and B and D, A and C and D, B and C and D = 5.3 ohms (not sure once again)
A and B and C and D = 8 ohms (once again not sure)
I'm not much of an engineer unfortunately. Can someone explain to me how Radio Shack has internally wired this so when choosing A and B, the amp only sees 16 ohms. I assume from this that the explanation for the ratings on the other pairings above will fall into place. I hope someone is an ohm expert out there
And if you have any recommendations for a replacement of this switch, that would be good too. I don't know how good a quality it is but I do know it's so light that the speaker wire hanging off the back of it wants to pull it out of the entertainment center and onto the floor.
thanks much,
--tom
-t-om
A or B or C or D = 8 ohms (this makes sense to me)
A and B = 16 ohms (not sure how this works)
A and C, A and D, B and C, B and D, C and D = 4 ohms (this makes sense to me)
A and B and C, A and B and D, A and C and D, B and C and D = 5.3 ohms (not sure once again)
A and B and C and D = 8 ohms (once again not sure)
I'm not much of an engineer unfortunately. Can someone explain to me how Radio Shack has internally wired this so when choosing A and B, the amp only sees 16 ohms. I assume from this that the explanation for the ratings on the other pairings above will fall into place. I hope someone is an ohm expert out there
And if you have any recommendations for a replacement of this switch, that would be good too. I don't know how good a quality it is but I do know it's so light that the speaker wire hanging off the back of it wants to pull it out of the entertainment center and onto the floor.
thanks much,
--tom
-t-om