Help with ecaller

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Help with ecaller

Postby gandergunner » Sun Feb 03, 2013 11:01 am

So me and my buddys are in the process of making a homemade ecaller for the CO season, and i have a few questions about amps. First we will start with 2 50watt Radioshack Powerhorns and move to 4 possible by next year. My main concern is what amp to buy, could i get one at walmart or are they all junk? I have read a 300watt amp with 4ohm and 8ohm speakers will work fine, but im new to all this. So what amp? Thanks
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Re: Help with ecaller

Postby MOSSBERG935 » Sun Feb 03, 2013 10:08 pm

MOSSBERG935 wrote:Image

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The Amplifier: Pyle PLMPA35 2 Channel 300 Watt Mini Amplifier with 3.5mm Input was about $18. The speakers: Pyle PHSP4 6-Inch Indoor / Outdoor 50 Watts PA Horn Speaker were $17.00. The battery was $20. 50ft 3.5mm Stereo Headphone Extension Cable - M/F $4.29 Everything was bought on Amazon.com.

I plan on painting the toolbox white. I used 3.5mm ext. cords to run speakers out, quick and easy.

The application I use on the I-phone is "Snow Goose E-caller" https://itunes.apple.com/us/app/snow-goose-e-caller/id498488885?mt=8 $1.99

To make my battery last, I use a Mophie Juice Pack to power the phone.
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Re: Help with ecaller

Postby MOSSBERG935 » Sun Feb 03, 2013 10:11 pm

Buy everything on Amazon. It's cheaper than Radio Shack. With two 8 ohm speakers you need a 4 ohm amp. I used this set-up for the first time today and it was loud!!!

A friend made one too and uses a CD walkman run off AA batteries.
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Re: Help with ecaller

Postby MOSSBERG935 » Sun Feb 03, 2013 10:13 pm

I would recommend taking the 20 amp fuse out and using a 7.5 amp fuse. The compasators in this amp will blow before a 20 amp fuse will pop.
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