Well thanks for letting us know you only have a dialler for response.
You took out a Rapier and fitted a Oddy. Yes it is less abusive due to the single speaker compared to the rapier.
Not much will replace a rapier unless it is a rapier.
Your panel cannot cope with a lot so I believe the master blaster will be relay operated. If you are that worried you should fit another master blaster to the front elevation ( with a relay). Then you will have more "noise" to attract attention.
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