cubastreet Posted January 21, 2015 Share Posted January 21, 2015 A mate gave me one of those rechargeable pocket speakers a couple of years ago and it's been real handy, but isn't really loud enough once you have more than a couple of people hanging around. Enter the old Jansen: It's ex porirua high school so it's been well looked after but it looks like someone's poured beer into the amp section and I've had it for about a year and haven't got around to fixing it. So I decided to chuck in an old Pioneer car amp that was lying around and an old car battery too: This is how I've set it up just to test the concept. I hooked it up and it just rocks. I'll get some battery terminals and hook up some charging facilities, also a usb Jack and maybe a Bluetooth receiver. 6 Quote Link to comment Share on other sites More sharing options...
kempy Posted January 22, 2015 Share Posted January 22, 2015 What will you use for a Bluetooth receiver? Ive gotta make something similar for the wedding and so far I was thinking 12v battery, inverter, NAD amp I had lying about, spkrs, and butchering something like a Bluetooth speaker so someone in the seats can play DJ on their phone. Quote Link to comment Share on other sites More sharing options...
BlownCorona Posted January 22, 2015 Share Posted January 22, 2015 http://www.trademe.co.nz/electronics-photography/ipod-mp3-accessories/other/auction-835526837.htm recently discovered these little things which answered my desire for wireless/phone music onto my oldschool stereo gear. quality sounds as good as hard wired devices playing mp3s etc. more than happy with it. 1 Quote Link to comment Share on other sites More sharing options...
kicker Posted January 22, 2015 Share Posted January 22, 2015 Nice, looks the business. Have been playing with bluetooth stuff myself lately, the cheap receivers on TM work well, I have a couple to integrate into existing stereos. Ground loops can be a problem if you plan on hooking up the receiver to the amplifier power source, I have a some isolating dc-dc converters which apparently should fix it. Quote Link to comment Share on other sites More sharing options...
BlownCorona Posted January 22, 2015 Share Posted January 22, 2015 i just used a usb power plug adapter, turning the amp and the receiver on desperately doesn't faze me, that and its old as fuck and i wouldnt know how to connect them haha Quote Link to comment Share on other sites More sharing options...
kempy Posted January 22, 2015 Share Posted January 22, 2015 Perfect, thanks! Saves me destroying the daughters UE speaker Quote Link to comment Share on other sites More sharing options...
cubastreet Posted January 22, 2015 Author Share Posted January 22, 2015 Most inverters don't put out a proper sine wave, I think they call it a modified square wave and your amp might not like that. Quote Link to comment Share on other sites More sharing options...
kempy Posted January 23, 2015 Share Posted January 23, 2015 Yeah gotta watch that, thanks for the heads up. It's an 800w Sine wave one but I've change my mind on this. Went down to Jaycar and bought a cheap 50wpc class AB car stereo amp as I figured it's a pretty inefficient way to do this by inverting 12v up to 230v then back down to ~40v via the transformer in the NAD. May as well use the inverters in an efficient design and it's a lot less clunkier/easy to use which is important as it gets loaned to the PTA every year for the Santa Parade float sound system. Quote Link to comment Share on other sites More sharing options...
kempy Posted January 24, 2015 Share Posted January 24, 2015 Score, found an unwanted Phoenix Gold MS275 car stereo amp, a good amp in their day (not mine in the pic but exactly the same) Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.