![]() Amplifier wattage numbers are very subjective, so don't worry about whether it says it's 200 watts or 1000 watts, just see if it WORKS and sounds good. This signal can come from an IPod or other headphones-ready device, OR a mixing board with several inputs (including Microphone jacks). Amps like this have one input - a "Line-Level" stereo input. The amp discussed here is a standard ordinary car audio amplifier (except the switch we added). TEST the shopping cart (put a friend in it and pretend you're running from the cops) before choosing it. A final piece of advice, in case this is not obvious: TEST the speakers before falling in love with them. Let's not digress from the main topic though: find speakers that you like, and that work well. This can be fixed with tape if you do it right, or you can replace the speakers if the wooden box they are in is good. Often the only problem is that the foam ring around the paper cone of the largest speaker has disintegrated. A lot of people's houses contain unused speakers (check the attic or basement) which still work fine. Choosing speakers is easy if you're trying to save money. You may not be doing anything illegal with your street party, but if The Police want to stop you, accusing you of stealing a shopping cart is a quick way to put you in jail and confiscate your soundsystem! If your shopping cart is obviously the property of a store, that store can be easily convinced by the Cops to press charges on you. Make sure your shopping cart doesn't belong to a nearby store, which could prosecute you in case Cops want to make a big deal out of what you're doing. Probably though, you did not buy the cart or the speakers. Thats because speakers are Consumer Products, and a shopping cart is a fetishistic symbol of consumption. You will notice that these speakers fit PERFECTLY into this cart. If you have an awesome special cart, you might even make speakers just to fit in it, but if you're using an ordinary shopping cart, you can usually fit whatever speakers you find. You might choose your speakers first, or your cart first. (maybe jumper cables from the soundsystem's battery.) If that battery doesn't have enough juice to run the projector through the whole movie, at least the soundsystem will keep the party going. RADIOSHARK HIGH POINT PORTABLE********* To do movies, get a second shopping cart, a second GOOD battery (and charger), an inverter (keep AC power wires away from Sound wires) and a place to set your laptop, DVD player, projector, and portable screen. A built-in battery charger ensures that you never forget to respect your fragile battery, and a Mixing board (that can handle 12V DC) allows you to add a microphone or two, taking the concept to the next level. A Car-audio amplifier works great with a Car-battery, and some decent ordinary Speakers seal the deal. It uses a Shopping cart as a rugged, mobile platform. RADIOSHARK HIGH POINT MOVIEThis setup can be used for all kinds of public gatherings, including Protests, Street Dance Parties, Parkling Lot Rap Battles, and even outdoor movie showings (with a second cart for the Projector). This Instructable will show you the steps to create a self-contained mobile soundsystem in a shopping cart. ![]()
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