AVS Forum Special Member
Join Date: Feb 2004
Location: Douglasville, GA
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You're going to have to spend as much or more on an AC-DC converter that's capable handling the current demands of a car-audio amp as you would for a purpose build sub amp. What is the impedance of the individual woofers? You're probably better of with a plate amp or pro-audio amp for the subs, along with budget stereo or home-theater receiver and some efficient bookshelf speakers. The Yamaha stereo receiver you mentioned is a great deal from AC4L for $99, but to use a pro-audio amp you'll probably want a multi-channel receiver so you'll have an integrated adjustable crossover. If you went with a plate amp, you could use a stereo receiver with line-level outputs to/from the plate-amp and use the amp's onboard crossover. You'll need to make sure the overall impedance of your subs works out to 4ohm for the plate amps to work... you have a little more flexibility there with the pro-audio amps.
I'd personally either be looking at the Yamaha + Behringer KM750 or Denon 540BT + Yung or Bash 300w or 500w plate amp along with some efficient speakers like BIC FH6-LCR or FH-65B, or Monoprice Stage Right 15 if they go on sale again (looks like they're being replaced, so another clearance sale will likely depend on what stock is available). You could also shop used locally on Craig's List or Facebook marketplace for either type receiver and maybe some used speakers, but keep in mind both the Yamaha and Denon mentioned have built-in Bluetooth for a convenient music source from your phone/tablet/etc. I'd also check for local used deals on speakers, like older Klipsch offerings (I'm seeing a pair of older Klipsch Synergy towers for $125, for example).
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Last edited by Stephen Hopkins; 05-07-2019 at 02:00 PM.