Greetings,
we have a pyramid brand PA amplifier with auto mic talkover which we use at our factory. We moved to a new facility and upgraded to a bigger wattage unit, but it started making a horrific noise.
Anyhow, I put the old PA amp in place, and it works fine but it is not very loud because the wattage is significantly lower. I had tried to buy a replacement with the larger wattage but they were very expensive at the time and hard to find. I ordered one from the internet and they sent the wrong item etc.
Anyhow, long story short, and simply put - Can I run the output from the functioning amplifier with auto talkover into a less fancy but higher wattage amplifier to maintain functionality but increase our volume?
We are using 70v style speakers with it. The way its rigged up is our phone system has an optional adaptor that you can connect to speakers and call an extension to page out, so when we moved i sprung to get sirius xm radio for the shop and some nice speakers with the intention of dual purpose of paging and entertainment
we have a pyramid brand PA amplifier with auto mic talkover which we use at our factory. We moved to a new facility and upgraded to a bigger wattage unit, but it started making a horrific noise.
Anyhow, I put the old PA amp in place, and it works fine but it is not very loud because the wattage is significantly lower. I had tried to buy a replacement with the larger wattage but they were very expensive at the time and hard to find. I ordered one from the internet and they sent the wrong item etc.
Anyhow, long story short, and simply put - Can I run the output from the functioning amplifier with auto talkover into a less fancy but higher wattage amplifier to maintain functionality but increase our volume?
We are using 70v style speakers with it. The way its rigged up is our phone system has an optional adaptor that you can connect to speakers and call an extension to page out, so when we moved i sprung to get sirius xm radio for the shop and some nice speakers with the intention of dual purpose of paging and entertainment
Yes, as long as You don't crank the volume and play very low, or You could use some resistors in series.
Does the old amp feature headphone output ? Use it to feed the new one.
The new amp must also be 70V compatible or You have to remove the transformers on the speakers.
The sum of the speaker wattage shouldn't exceed the wattage of the new amp. Add 20% amp power for safety.
Check the speaker taps and compute max wattage (sum all together).
It's pointless to drive 100W speakers with 200W amp. Something is going to blow...
You could drive them with an ordinary 8 or 4 Ohm amp without transformers with series / parallel connections.
Define "Horrific noise"
You should have opened with that info... it's key to making this work. It's not likely you can attach both the 70v speakers and regular speakers to the amp at the same time unless it is multi channel(more than 2), so we some detailed info on how many of each type of speaker you have and some model numbers on the amplifiers in use.
Sounds like you just need to buy a cheap DJ mixer that has a talkover function. Plug the music source and microphone into that, then the master output to your new amplifier. something like the below might work (note, you will need to check with the vendor that the talkover function of that unit is automatic, and not manual by pressing that talkover button). Or perhaps choose something more expensive / better if you care about the sound quality, but the key feature is the automatic talkover.
https://www.bax-shop.co.uk/dj-mixers/skytec-stm-2211-3-channel-mixer-black
https://www.bax-shop.co.uk/dj-mixers/skytec-stm-2211-3-channel-mixer-black
yeah not enough details of equipment used to give a proper answer.
if the equipment used is decent quality paging stuff to begin with, there may be provisions for paralleling the two amps.
if the equipment used is decent quality paging stuff to begin with, there may be provisions for paralleling the two amps.
With a 70 volt system if you use a larger amplifier nothing bad happens. Connect 100W worth of taps to it and it draws 100 watts. Since the voltage won’t go significantly above 70 at clip you won’t put 200 or even 600 into the speakers. But the bigger amplifier is obviously more money. Ones designed for 70 volt systems command a premium price, unless they’re Pyramid-quality.
How much power is needed/desired? An inexpensive option is an amplifier rated 600W at 8 ohms (or a bit more) and drive the line directly. Do the math, it’s 70 volts. Then run it with less load and the amp will loaf and last a long time. A two-channel 300W/4 ohm bridged can often be had for pocket money these days, especially used.