replace speakers in medical office

[teinhaus]

the doctor wants to replace the 7 existing speakers, 4 are not working at this time. The existing speakers look like standard 8" speakers without any transformer on them and looks like they are directly wired to a Sony receiver. Also has one volume controll in hallway?
I want to keep the existing sony stereo but change out the 7 speakers and one volume control, what are my options???

Thanks,
TE

 

[zildjian]

Monoprice as 8" in ceiling speakers that would work well for this purpose or you can get even cheaper speakers if those are too much $$ at Radio Shack, but I've had friends with good luck with the Monoprice in ceiling speakers.

http://www.monoprice.com/products/subdepartment.asp?c_id=109&cp_id=10837

Monoprice also has speaker selector boxes and volume controls.
http://www.monoprice.com/products/subdepartment.asp?c_id=109&cp_id=10903

If I have to replace speakers in my medical office someday, monoprice is where I'll be going.

 

[teinhaus]

Thanks for the info. Is it normal for all 7 speakers to be wired directly into the sony stereo? also if replacing wiring what should I use.

Thanks for the help!!!

 

[highfigh]

Thanks for the info. Is it normal for all 7 speakers to be wired directly into the sony stereo? also if replacing wiring what should I use.

Thanks for the help!!!

No, it's not a normal method of wiring 7 speakers and I would bet that the original setup was 25V or 70V with a mono amplifier. If you look at the wiring, it may have a silver/gray jacket and two conductors. If that's the case, and you only have one wire at the stereo, don't just wire them parallel- it will toast the amp.

 

[TLS Guy]

No, it's not a normal method of wiring 7 speakers and I would bet that the original setup was 25V or 70V with a mono amplifier. If you look at the wiring, it may have a silver/gray jacket and two conductors. If that's the case, and you only have one wire at the stereo, don't just wire them parallel- it will toast the amp.

I bet its not the speakers and the receiver is toast. I suspect there are four speakers on one channel which is blown because of the low impedance and the three that are working are on the good channel.

I would recommend going to speakers with transformers and using a pro 70 volt PA amp.