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Is the PWR-ICE good for closed subs? 2 years 1 month ago #57404

  • zdenes
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I have a subwoofer which has two 12" drivers facing opposite (firing up and down). The amp in it was a 1200W B.A.S.H amp driving the two units in sync at 2ohms, connected parallel. 
The amp died I'm looking for a replacement. I'm looking at the PWR-ICE250 but I have a few issues before purchase:

- Will the 2x250W be enough to drive the two 12"drivers? Connected stereo but mono signal.
- Or would I be better off to connect the drivers in series, and drive the 8ohm load in BTL mode / 500W?
- I was thinking mounting the unit at the back of the sub, in the opening which is there already, with some custom made plate. But I read that this will cause the amp to overheat. Is that the case? What's the point of having a plate amp then? Is it only good for ported speakers? 
- I read here that the amp produces some audible noise at 50Hz which is exactly where subs should work most brilliantly. Has this issue been solved? 


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Is the PWR-ICE good for closed subs? 2 years 1 month ago #57436

  • xnwrx
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use the PWR_ICE in BTL mode with your two drivers in series (8 Ohms). Series or parallel does not make any difference in terms of sound or max level. In BTL mode you should not experience any problems with noise.
No problem to place the amp inside the cabinet, this is the common config and it has been done for that. Just one point, the plate is in plastic and sealing is irrelevant once mounted (the amp will not perform a correct sealing), so that the room provided in your cabinet to receive the amp shall be seperated itself from the loudspeakers chamber.
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