|
|
|
|
Joined: Aug 2003
Posts: 268
Member
|
OP
Member
Joined: Aug 2003
Posts: 268 |
I have a school with a very old Simplex/Bogen talkback system and Dukane 9935a speakers. They would like to add two more speakers to the system. There are enough switches in the Bogen MCP35 Unit, but what type of speakers will work in this scenario. Any help would be greatly appreciated!
|
|
|
Visit Atcom to get started with your new business VoIP phone system ASAP
Turn up is quick, painless, and can often be done same day.
Let us show you how to do VoIP right, resulting in crystal clear call quality and easy-to-use features that make everyone happy!
Proudly serving Canada from coast to coast.
|
|
|
|
Joined: Jan 2010
Posts: 206
Member
|
|
Member
Joined: Jan 2010
Posts: 206 |
You will need speakers with a 25 volt matching transformer on the back.
|
|
|
|
|
Joined: Aug 2003
Posts: 268
Member
|
|
OP
Member
Joined: Aug 2003
Posts: 268 |
Thanks for the response, and forgive my ignorance on this system, as it was probably installed before I was born, but is this simply a two wire setup as in a one-way system, and the SBA225 room selector panel handles the magic of making the speaker a microphone for talkback?
|
|
|
|
|
Joined: Feb 2005
Posts: 12,344 Likes: 3
Member
|
|
Member
Joined: Feb 2005
Posts: 12,344 Likes: 3 |
Speakers make good microphones. All you have to do is connect it the the INPUT of an amplifier. The "magic" is simply a switch that transfers the speaker to the output or the input depending on whether you are talking or listening. It's a basic intercom setup.
-Hal
CALIFORNIA PROPOSITION 65 WARNING: Some comments made by me are known to the State of California to cause irreversible brain damage and serious mental disorders leading to confinement.
|
|
|
|
|
Joined: Jan 2010
Posts: 206
Member
|
|
Member
Joined: Jan 2010
Posts: 206 |
Mickamg, for lack of a better explanation...yes. The magic is actually inside the MCP35 master panel and not in the switch bank. You do not need anything other than an industry standard 25-volt loudspeaker such as the Dukane model 5A607.
|
|
|
|
Forums84
Topics94,290
Posts638,801
Members49,767
| |
Most Online5,661
May 23rd, 2018
|
|
|
0 members (),
133
guests, and
383
robots. |
|
Key:
Admin,
Global Mod,
Mod
|
|
|
|
|
|
