|
Joined: Feb 2010
Posts: 500 Likes: 1
Member
|
Member
Joined: Feb 2010
Posts: 500 Likes: 1 |
I am wondering if I can use both 2 Wire 70V paging and 4 Wire 24 V Valcom
By sharing the same output
Customer wants to add additional paging horns to the outside of each building
I am a little concerned about possibly overloading TOA 724 Amplifier
So I was thinking of just using Valcom 24 v paging horns
Just for outside
any thoughts
Thanks
JD
|
|
|
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: May 2007
Posts: 5,058 Likes: 5
Moderator-1A2, Cabling
|
Moderator-1A2, Cabling
Joined: May 2007
Posts: 5,058 Likes: 5 |
What's your load on the 724 Amplifier? How many horns at what wattage do you want to add. Is that TOA a 240 Watt unit? If so, you may have a lot of unused power in there. Put an impedance meter on the circuit and go from there.
Sam
"Where are we going and why are we in this hand basket?"
|
|
|
|
Joined: Feb 2010
Posts: 500 Likes: 1
Member
|
Member
Joined: Feb 2010
Posts: 500 Likes: 1 |
Hi Sam
Thanks for responding. Can you recommend and impedance media that I can buy?
I think they have a newer version digital versus Analog
Thanks
JD
|
|
|
|
Joined: Jan 2010
Posts: 217
Member
|
Member
Joined: Jan 2010
Posts: 217 |
This is a good impedance meter..https://dedicatedpresentation.com/toa-zm-104-a-impedance-bridge
But I am confused. Are you adding Valcom horns to the TOA amp, or standard 70V horns to the TOA Amp?
|
|
|
|
Joined: Jul 2001
Posts: 3,347 Likes: 10
Moderator-Avaya-Lucent, Antique Tele
|
Moderator-Avaya-Lucent, Antique Tele
Joined: Jul 2001
Posts: 3,347 Likes: 10 |
If you decide that you want to install 4-wire self-amplified speakers because you're worried that additional 70-volt speakers would overload the existing amplifier, you're going to need an adapter to tap off of the 70-volt speaker line and convert to a suitable impedance to feed the input of the 4-wire self-amplified speakers. Something like V-1095 70V Paging Expander https://www.valcom.com/products/productdetail/v-1095
|
|
|
|
Joined: Feb 2010
Posts: 500 Likes: 1
Member
|
Member
Joined: Feb 2010
Posts: 500 Likes: 1 |
Ok
So I guess I’m gonna measure the impedance and see if there’s any more room
I thought I could just double tap the audio output from Algo 8301 and send one into the amplifier for the 70 V system and then one into the Valcom for the 24 V system
I want to add three additional Paging horns to each building I believe each building currently has (1) Bogen 15w horns on out front
Bogen 15w tapped at 7.5
|
|
|
|
Joined: Jan 2010
Posts: 217
Member
|
Member
Joined: Jan 2010
Posts: 217 |
I still am not sure what you're trying to do, but let us know what your impedance readings are and we can take it from there.
|
|
|
|
Joined: Jun 2006
Posts: 8,734 Likes: 5
Moderator-Nortel, Computers, General
|
Moderator-Nortel, Computers, General
Joined: Jun 2006
Posts: 8,734 Likes: 5 |
I'm thinking that if you split the output from the telephone system before the amp that it shouldn't be a problem.
Scientists say that the universe is made up of Protons, Neutron & Electrons. They forgot "Morons". Dave. (CTUB) Canadian Techs Use Bix!
|
|
|
|
Joined: Sep 2005
Posts: 9,288 Likes: 11
Admin
|
Admin
Joined: Sep 2005
Posts: 9,288 Likes: 11 |
The Algo should be able to do just what you want. You may need to have 2 Algo units unless you can separate the output on the 8301
|
|
|
|
Joined: Feb 2010
Posts: 500 Likes: 1
Member
|
Member
Joined: Feb 2010
Posts: 500 Likes: 1 |
Ok
So I went out to the site with my new impedance meter TOA -ZM -104 I disconnected the speaker leads from the amp, connected it to the meter I never heard tone coming through any of the speakers
The meter immediately went to zero ohms at 10X
Then it went to 10 Ohms I believe I was at 1X
I’m not 100 % sure on how to calculate
But I think I might be using about 200 Watts
Why, no tone I thought this was so you could tell if any of the speakers were disconnected or causing an issue
Thanks
JD
|
|
|
Forums84
Topics94,428
Posts639,501
Members49,821
|
Most Online5,661 May 23rd, 2018
|
|
0 members (),
305
guests, and
22
robots. |
Key:
Admin,
Global Mod,
Mod
|
|
|
|