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Old 17th August 2010, 10:47 PM   #1
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Default F5 on batteries

Anyone try to run these off batteries?
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Old 17th August 2010, 10:56 PM   #2
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I ran a small SOZ off batterys it was a pain keeping them charged. Trust me
you don't want to do it! If you do you need big deep cycle batteries and these
are expensive!
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Old 18th August 2010, 12:09 AM   #3
alazira is offline alazira  United States
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I am interested in this as well.

As has been suggested in the F5 thread, four 12V marine (or similar) deep-cycle batteries, center-tapped to give +/- 24V.

Interesting reviews of a system powered by battery (albeit through an inverter)
diyparadise - Batts vs PSU
diyparadise - Monica2 and Batteries

I think adding a way to switch between batteries and standard mains would give the best of both worlds. Run on mains to warm up or while charging and switch to batteries for quality listening. However, I am not sure of the best way to integrate the two (i.e. reuse cap bank?)
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Old 18th August 2010, 01:13 AM   #4
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My gut reaction - batts would be nice if you run with horns... otherwise, a real PIA. Inverters don't count, and imo are worse than the line unless they are really carefully made, which has got to be worse than making a regulated supply??

Batteries could be seen as very big and good capacitors??

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Old 18th August 2010, 02:01 AM   #5
Bigun is offline Bigun  Canada
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Well the F5 isn't far off being a MOSFET Hiraga Monstre and that thing ran off batteries. Seems like a good starting point.
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Old 18th August 2010, 01:15 PM   #6
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It's the sound I'm interested in.
I have lots of of bateries
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Old 18th August 2010, 01:17 PM   #7
AndrewT is offline AndrewT  Scotland
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Don't be silly.

BTW, using horns does not help.
Pq remains exactly the same.
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Old 18th August 2010, 05:02 PM   #8
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Quote:
Originally Posted by AndrewT View Post
Don't be silly.

BTW, using horns does not help.
Pq remains exactly the same.
Help?? Help what?

Batteries will have no hum from the amp (the other stuff is your problem to deal with...) and HORNS reveal hum very nicely due to their sensitivity and efficiency. So for horns, battery power could be a true benefit.

Btw, Andrew, have you built one yet?

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Old 18th August 2010, 05:19 PM   #9
flg is offline flg  United States
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Quote:
Originally Posted by AndrewT View Post
Don't be silly.

BTW, using horns does not help.
Pq remains exactly the same.
I'm not going to comment on the silly...
But, Horns can certainly have an advantage. The eff will determine weather or no tons of Class AB power is being used or only just within the Pq...
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Old 18th August 2010, 05:31 PM   #10
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I'm running paudio 15 duel concentric 109 on the horn(thanks bear)and101 on the woofer and like it nice and quiet
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