Speaker used for two applications??

[ginger321]

Can you have a Stereo receiver playing FM only to the same pair of speakers that you have an amp playing LP's or Cassettes. Of course, listening to one source at a time with the other source off.
In other words, two sets of speaker wires going to the same speakers without any interference??
Phil Maier

[JoeE SP9]

I wouldn't do it. If ever there was a bad idea, that's one. There are switch boxes made for that purpose.

[ginger321]

It looks like you know the answer to the question.
Now which one that you have listed is the best buy for the money??
Phil Maier

[JoeE SP9]

I have listed nothing!

Best buy between what devices?

[Rob998]

I think he means your system in your sig, Joe.

[JoeE SP9]

Rob, the gear listed in my signature is my own system. I list it so others will know where and how I get my opinions.

[Rob998]

I know Joe, I think the OP might not have realised though.

Actually, how do you rate your Behringer x-over? I'm planning to experiment building some speakers & also adding a 2nd power amp. Would your x-over allow me to build my speakers without an internal x-over & run cables direct to the drivers?

[ginger321]

You're right, I didn't understand. But I've got it all fixed up thanks to my BOSE 901 manual. All's beautiful now.
Thanks.
Phil

[JoeE SP9]

I know Joe, I think the OP might not have realised though.

Actually, how do you rate your Behringer x-over? I'm planning to experiment building some speakers & also adding a 2nd power amp. Would your x-over allow me to build my speakers without an internal x-over & run cables direct to the drivers?

I'm quite happy with both Behringer products I own. I intend replacing the opamps in the crossover this winter. This is mostly to give me something to do this winter. It will be one of my winter projects.

Yes, it would allow you to build speakers with no passive crossovers. Be aware the one I have is only a two way. Behringer makes a three way if that's the kind of speaker you have in mind.

[Rob998]

Thanks Joe, that's useful to know.

[PeterW.]

Can you have a Stereo receiver playing FM only to the same pair of speakers that you have an amp playing LP's or Cassettes. Of course, listening to one source at a time with the other source off.
In other words, two sets of speaker wires going to the same speakers without any interference??
Phil Maier

Can you? Yes you can. But if you do, expect to replace drivers (or worse) regularly on both amps/receivers.

And yes, there are switches for the purpose - but you need to make absolutely sure that there is no possible way that you are able to cross-connect both amps. Repeat - ABSOLUTELY AND UNDER NO POSSIBLE COMBINATION OF SWITCH POSITIONS. Most "speaker switches" are for one amp to connect to multiple speakers, not the other way around.

I have actually mades such a switch using two ganged double-pole, double-throw, center-off switches. Speaker feeds to the center and the speakers feed to "UP" and "DOWN". Center-off is a convenience. http://www.skycraftsurplus.com/heavydut ... ff-on.aspx is a link to the switches I used. One for channel A, one for channel B. No potential for cross-connection. And, as your switch may handle many watts - go heavy, not light. 2500 watts may be overkill - but there is no real cost penalty.

One more thing to keep in mind - it is _very_ bad for most solid-state amps to run with signal at some volume but with no connected load. True, a pure power-amp can run all day with no load, but if a signal is applied under those conditions it will overheat rapidly and unless thermally protected will run into overload with the potential for a *POOF* . Not instantly but all-too-soon enough. Similarly for tube-amps. Just an altogether bad idea.