Hi all,
I'm trying to future-shop for an amp for my 10" Pioneer Premier (TS-W2501D4) Dual Voice Coil, 4-ohm Subwoofer in a 1.0 cuft sealed box. Right now I'm running an Ultra Linear UL1602 2-channel amp wired in series. It's simply not putting out enough SPL, even though it's intended as a SQ setup. I also want versatility and headroom that if someone pops in a different music genre the system can handle it.
I originally had a Cadence SVC TX-SW10 sub bridged from this amp but that subwoofer blew apart and fried when a friend put in a rap CD. Then I decided to get the Pioneer sub but now I'm finding that I should probably get a better amp to power it. I had to also replace the amp after trying to wire it up to the Pioneer sub as a mono bridged 2-ohm load in paralell. Fried the amp. Got it replaced.
I'm thinking a class-D mono sub amp wired in paralell for a 2-ohm load would be best for what I'm trying to do. I am here for suggestions. Keep the amp cost under $250 and make it as powerful as you can that can fit into an 80-amp capacity (to avoid alternator overload) and perform properly with the Pioneer sub's wattage specs.
That means, when running at a 2-ohm mono load I would prefer a true 800-RMS wattage with a lot of dynamic headroom to peak out as high as 2500 watts. That is fairly likely to fit the 80-amp load on average and pulling more only occasionally which should be fine. I would also like a recommendation on whether or not it would be wise to include a capacitor on this setup to make up for the moments where the amp will call for more watts at peak moments and if so, what kind of capacitor should I use?
The alternator is 120-amps. The 4-channel amp I use likely won't ever use more than 20-amps. The car's electrical system hardly uses any amps at all (20-30 max). The reason Nissan included a 120-amp alternator was for the optional high powered Rockford Fosgate sound system for the Sentra. That leaves roughly 80-amps for the subwoofer amp. When looking at sub amps and doing the math it looks like a class-D design's high efficiency is needed to get the wattage I'm looking for while taking into account my alternator's limits.
Recommendations?
My first search under my budget yielded a possibility. How about a Kenwood KAC-9102D class-D Mono amplifer? Theorhetically when connected to my Pioneer DVC sub in paralell it claims to be able to push out 850-watts RMS x1 into 2-ohms according to the manual. Would this be an ideal fit for my sub? The specs seem to suggest it would. When I look at the fuses it is at 60-amps. Is this amp overrated or is this a real 850-watt RMS product at 2-ohms? This potentially seems like a perfect fit according to the numbers but I would like some resident experts to comment.
