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12v Eco project sound system
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<blockquote data-quote="Silas Pradetto" data-source="post: 23105" data-attributes="member: 34"><p>Re: 12v Eco project sound system</p><p></p><p>I just thought of something: my former truck stereo, from when I was 16 years old. Back in those days, I had no money, but all kinds of interesting ideas and old equipment. So I created somewhat of a 'system' from the junk I had:</p><p></p><p>I used a 700-watt 'Walmart' power inverter to get me 120V. There were two QSC Series 3 model 3500 amplifiers, one bridged into the sub, and one stereo on the mains. These amps are extremely inefficient; I think they were class AB. The sub was a single 18" W-bin in the bed of my truck, and the mains were a pair of JBL SF15s, which are 15" 2-ways. The whole system was crossed over with a Furman analog crossover, with an iPod or something providing the music.</p><p></p><p>All that gear cost significantly less than $1000.</p><p></p><p>This system went LOUD for only operating on a 700W inverter. People told me they could hear the sub a quarter mile away. The inverter would go into protect if I really got near clip. Remember, this is 1400+700 watts of amplifier on a 700 watt inverter.</p><p></p><p>My recommendation is this: Buy some used speakers, an amp or two, crossover, subwoofer, or whatever you can get to do the job for your $1000 budget, and get a pretty big inverter (2000 watts I'd say, or more) to power it. This way you can sell the gear if it doesn't work out.</p><p></p><p>I once did a float in a parade on a 3000 watt inverter, with NO issues running full PA.</p></blockquote><p></p>
[QUOTE="Silas Pradetto, post: 23105, member: 34"] Re: 12v Eco project sound system I just thought of something: my former truck stereo, from when I was 16 years old. Back in those days, I had no money, but all kinds of interesting ideas and old equipment. So I created somewhat of a 'system' from the junk I had: I used a 700-watt 'Walmart' power inverter to get me 120V. There were two QSC Series 3 model 3500 amplifiers, one bridged into the sub, and one stereo on the mains. These amps are extremely inefficient; I think they were class AB. The sub was a single 18" W-bin in the bed of my truck, and the mains were a pair of JBL SF15s, which are 15" 2-ways. The whole system was crossed over with a Furman analog crossover, with an iPod or something providing the music. All that gear cost significantly less than $1000. This system went LOUD for only operating on a 700W inverter. People told me they could hear the sub a quarter mile away. The inverter would go into protect if I really got near clip. Remember, this is 1400+700 watts of amplifier on a 700 watt inverter. My recommendation is this: Buy some used speakers, an amp or two, crossover, subwoofer, or whatever you can get to do the job for your $1000 budget, and get a pretty big inverter (2000 watts I'd say, or more) to power it. This way you can sell the gear if it doesn't work out. I once did a float in a parade on a 3000 watt inverter, with NO issues running full PA. [/QUOTE]
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