Hi guys, sorry to appear rude, but I wonder if you guys can help me, I hear you guys are gods when it comes to alarm systems. I have a scantronic 9600 which works great and still going strong. However I currently have an elmdene 16 ohm speaker which is quite loud but just not quite loud enough,I would like to make it a bit louder. So on reading the manual it says the panel can drive two 16 ohm speakers in parallel.

So I was wondering, If I was to replace the 16 ohm I have currently and buy an elmdene 8 ohm speaker will I get a louder alarm volume? or will it not make a difference? Thanks

Its probably very simple but I would appreciate your expert knowledge and advice, thanks and merry christmas to you both. :)

paul, December 2015

if the panel can drive two 16ohm speakers in parallel, then it should be able to drive an 8 ohm without a problem. you may get a 3db increase but you will barely notice it.

J, December 2015

RTFM, there it tells you the correct way to do it.

PJ, December 2015

Me likes the klaxtons :)

Have a good one gts and a happy new year matey :)

e manno, December 2015

too true,i got two in a site one internal one external told the guy to wear ear defenders when he is doing bell test,you can hear it from a mile away ,as you said its expensive ,but boy,does it do the job,merry xmas mate happy new year to you all

gts, December 2015

Mine too gts but sadly don't fit many as their expensive mate.

e manno, December 2015

way to go e manno the master blaster my fav sounder :-)

gts, December 2015

You very welcome._

e manno, December 2015

thanks very much I will mount another 16 ohm elsewhere. cheers

paul, December 2015

Stick to two 16 ohm's mate placed as far apart from each other or if you want loud mate then buy a master blaster :) .

Mains driven with a 12v trigger taken from the 9600....don't get much louder than that :)

e manno, December 2015

I do know - I know about impedance matching - sure I know nothing about alarm systems but this is not an alarm system question.

If you do not match the speaker with the impedance of the output you will attenuate the volume.

If you put in another question I promise not to answer.

In electronics, impedance matching is the practice of designing the input impedance of an electrical load or the output impedance of its corresponding signal source to maximize the power transfer or minimize signal reflection from the load.

Your manual tells you what to do - use a 16 ohm speaker in parallel.

If you use an 8 ohm speaker it will be quieter.

Happy Christmas..., December 2015