Hi all,

I would like to build in some protection to a line array I'm building. The line array will consist of 12 Neo3 PDRW tweeters in series/parallel and I want to confirm if my calculations for a polyswitch are correct.

Here's what the setup will be like:

Active x-over >>> Amp >>> Polyswitch >>> Line array (5.3 ohms amp load)

The Neo3 has a rated RMS of 20 Watts, and I want the polyswitch tripping ampere value to be around those 20 Watts.

Assumptions:

- 20 x 12 neo3 = 240 Watt RMS for the whole array

- The amp will see a load of about 5.3 ohm with the series/parallel configuration I'm using

So my calculation goes as follows:

Step 1. Sqrt(240) = 15,49

Step 2. 15,49 x 2 = 31

Step 3. 31 / 5,3 ohm = 5,85 ampere

So the tripping value would have to be around 6 ampere for my purpose.

Are my assumptions and calculations correct here? Is using the RMS value of the tweeter a smart thing or do you recommend a lower / higher value?

I would like to build in some protection to a line array I'm building. The line array will consist of 12 Neo3 PDRW tweeters in series/parallel and I want to confirm if my calculations for a polyswitch are correct.

Here's what the setup will be like:

Active x-over >>> Amp >>> Polyswitch >>> Line array (5.3 ohms amp load)

The Neo3 has a rated RMS of 20 Watts, and I want the polyswitch tripping ampere value to be around those 20 Watts.

Assumptions:

- 20 x 12 neo3 = 240 Watt RMS for the whole array

- The amp will see a load of about 5.3 ohm with the series/parallel configuration I'm using

So my calculation goes as follows:

Step 1. Sqrt(240) = 15,49

Step 2. 15,49 x 2 = 31

Step 3. 31 / 5,3 ohm = 5,85 ampere

So the tripping value would have to be around 6 ampere for my purpose.

Are my assumptions and calculations correct here? Is using the RMS value of the tweeter a smart thing or do you recommend a lower / higher value?

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