Need help rehabbing an old PA system....
This is for a horse farm that uses 3 separate riding rings and wants to be able to announce to all 3 rings at once but then also individually to each ring. How would I go about setting something like this up? i
This is for a horse farm that uses 3 separate riding rings and wants to be able to announce to all 3 rings at once but then also individually to each ring. How would I go about setting something like this up? i
Welcome to the forum.
First tell us what you have, then maybe an idea of your budget and your technical skills.
First tell us what you have, then maybe an idea of your budget and your technical skills.
Look at an Ashly 4 channel amplifier with DSP (they end the part number with Pe for Protea Enabled.) 125 watts per channel should do and if using multiple 70 volt loudspeakers be sure to get a 70 volt model. They also have the option of direct microphone inputs. You will need to have a small control panel to select where you want to page. It will require four switches, one for each rink and an all page. Cost should be around $2,000.00.
If you need loudspeakers look at JBL Control 25s in the 70 volt version.
Now that is for a decent system. If you want crap buy three used amplifiers off eBay and switch the outputs. The amplifiers will fail fairly quickly with unloaded 70V outputs.
If you need loudspeakers look at JBL Control 25s in the 70 volt version.
Now that is for a decent system. If you want crap buy three used amplifiers off eBay and switch the outputs. The amplifiers will fail fairly quickly with unloaded 70V outputs.
Not knowing your Country, it is dificult to advise. UK would use a TOA four channel amplifier allowing the mix to go to any or all speakers. We need an idea of cable run etc.
I would use PA Horns not loudspeakers if you need good speech or basic music. Most use a few 30Watt 100v line horns for outside work.
I would use PA Horns not loudspeakers if you need good speech or basic music. Most use a few 30Watt 100v line horns for outside work.
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this is a low budget type place. Right now they are using a Radio Shack 40w PA Amplifier and they have horns for speakers. Everything is in decent shape but doesn't allow them to call rings individually and then make a general announcement too. The amplifier they have has a mix bus jack? is there another amplifier or something else that I could plug into it and achieve would i would like?
The cheapest way might well be to get a speaker-level switch box.
You wire the outputs of the amplifier to the switches, and then each switch can control a different speaker or set of speakers.
Chris
You wire the outputs of the amplifier to the switches, and then each switch can control a different speaker or set of speakers.
Chris
All you need is three switches.
JSE haven't looked at Toa in years. Last time a sample came in of their latest and greatest it was a major disappointment. Used to use them quite a bit. You might want to look at the Ashly probably the best DSP units today. They do have a UK distributor and other EU ones.
JSE haven't looked at Toa in years. Last time a sample came in of their latest and greatest it was a major disappointment. Used to use them quite a bit. You might want to look at the Ashly probably the best DSP units today. They do have a UK distributor and other EU ones.
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Thanks for the switch idea. that should work!! Another question... if I have 3 speakers ate 16ohms and plug them into the switcher (Sima SSW 4 Speaker Selector) then into the amplifier(Radio Shack 40w PA Amplifier) that shouldn't be to much impedance correct?
If you switch all 3 speakers on, your amplifier will be driving a 5.33ohm load. More realistically, it'd be 4ohm in some places. Make sure the amp's happy to drive 4ohm and you're sorted. If its only happy at 8ohm, there's a chance it'll shut down due to thermal overload. That'll only happen if you're running it hard, though, so you might get away with it.
Chris
Chris
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