Join Date: Mar 2017
Location: Ojibwe Gichigami
Liked: 2779 times
You could bolt the amp down on a 1/4" thick aluminum plate that fits inside the pelican, with two blocks of aluminum, one on each side, pushed and clamped against the sides of the amp. Sorta like an amplifier sandwich. The aluminum base and blocks contacting the sides would conduct heat away from the aluminum sides of the amp where the chips are mounted.
FYI, that ain't no 1000 watt amp, more like blue-sky marketing claims stretched to extremes, then that blue-sky figure got tripled by the time they printed the retail box. We just do the math using ohms law, since it don't ever lie to us... a decent design class D amp will be up to 90% efficient on average, which is higher efficiency capability than class A/B units and nowadays, very inexpensive to build. So your amp is a class D for certain, based on cheap cost to manufacture alone.
So in a perfect blue-sky utopia, mounted on an ATV with a huge alternator (probably incapable of doing anything else except generate power cause its motor is only 500cc class), with more than 10% of its gross weight devoted to battery capacity and with 6 gauge welding cable interconnecting those power supply components and amplifier:
1000 watts divided by 14.5 volts = 68.9655172414 amperes gross power consumption @100% efficiency
But an efficient amp tops out at 90% efficiency (thats just chip performance, does not account for circuit losses) so:
1000 watts divided by 14.5 volts = 68.9655172414 amperes, plus 10% = 75.8620689655 amperes required just to feed those amplifier chips.
Blue skies utopia...? Basing on the power supply wire gauge feeding the amp that might be a 200-250 watt'er, tops. 250 watts would require 18.965 amps gross which might not be possible either.
But high power amps are not required for high quality music reproduction/high output decibel levels. The loudspeaker enclosure design, speaker match and environment accounts for all of the sound reproduction output. So your system probably sounds great and plays loud without melting any wires! Most good systems do. :-)
I'd try adding some heatsinking to the amp case externally. Another 15% of cooling capacity might be plenty.