On the budget side of things, I found this truck box at an estate sale.
It is way old school and low power.
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150 watts RMS per pair, so 75w per box.
Got it.
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Two little ports and a tweeter.
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I bought the pair of them for $25 and one of them had no sub woofer in it.
Max put the loaded one into his '49 truck behind the seat.
The ports were making tons of "chuffing" noise and so they were taped shut and it all sounds 1000% better.
He hooked the subwoofer to this amp that I purchased off of Ebay a few years ago for $52 shipped.
Back in the day Eclipse was a top notch brand.
This one is a 4/3/2 channel amp and he is powering a pair of 6x9's and the subwoofer in 3 channel mode.
So the 6x9's are getting 50 watts each and the sub is seeing 140 watts, according to the internets.
With the one channel bridged going to the sub, it is getting way more power than it is rated for but its taking it just fine.
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Love those fuse ratings.
Now this is an old school AB class amp, so its efficiency is no where near as good as the new power arrangements.
But it still puts the power out just fine.
13.8v X 50amps = 690watts
690w X 0.60effiency = 414watts of power available
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He wired it using junkyard wiring we pulled out of newer cars.
Gotta love the 1 gauge wire they use with trunk mounted battery locations of the newer stuff.
Makes great power wire.
Is it ideal?
No, but it is working just fine as a permanently temporary install until he wants to upgrade it all.