I believe that with the way WinISD models that if you've put in 240W as the input voltage and then had a 6 dB PEQ that it is modelling as though you have 960W at 30 Hz. You should be able to look at a Power graph in the software to confirm this. In that case you have little to worry about as the amplifier can't produce that amount of power.
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Small Sealed Sub Advice
I recently finished building a pair of zaph za5.3 for mains and a za5.3c for the center channel for a small bedroom system. I'm thinking about adding a small sealed sub for some additional low frequency help. I'm not super experienced with modeling in winisd or unibox, but here's what I've got so far. I wanted to see if my plan is flawed.
The system will be used for 70% movies/30% music, but will not be played super loud.
I was thinking about a Dayton RSS315HF-4 paired with a Dayton SA240-B plate amp w/ boost. I was planning on a 1.5cf enclosure, but it could probably grow a couple inches if necessary.
See my magnitude response and cone excursion plot below. It looks like the F3 is around 27 Hz, but the cone excursion has me a little worried. As long as I don't run the amp at full gain, will I be ok?
I wasn't exactly sure how to model the boost, so I modeled it as a PEQ with 6dB of gain at 30 Hz.
Let me know what you guys think, any advice would be appreciated.
The system will be used for 70% movies/30% music, but will not be played super loud.
I was thinking about a Dayton RSS315HF-4 paired with a Dayton SA240-B plate amp w/ boost. I was planning on a 1.5cf enclosure, but it could probably grow a couple inches if necessary.
See my magnitude response and cone excursion plot below. It looks like the F3 is around 27 Hz, but the cone excursion has me a little worried. As long as I don't run the amp at full gain, will I be ok?
I wasn't exactly sure how to model the boost, so I modeled it as a PEQ with 6dB of gain at 30 Hz.
Let me know what you guys think, any advice would be appreciated.
2
1 - 6 of 6 Posts
A simple fix to the modeling issue, simply add another filter, of the "static gain" type. Simply input into this the gain given by the EQ, but negative. This will re-normalize the graph to the amplifier's capabilities, and bring the excursion well within limits.
Other than that, if you're happy with it, then we are too!
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I mean, you could always to a bit bigger and lower, but if your size constraints are the most important thing, so be it.
Other than that, if you're happy with it, then we are too!
1 - 6 of 6 Posts
