F5 on batteries

bigfishe · 17th August 2010, 09:47 PM

Anyone try to run these off batteries?

woody · 17th August 2010, 09:56 PM

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!

alazira · 17th August 2010, 11:09 PM

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?)

bear · 18th August 2010, 12:13 AM

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??

_-_-bear

Bigun · 18th August 2010, 01:01 AM

Well the F5 isn't far off being a MOSFET Hiraga Monstre and that thing ran off batteries. Seems like a good starting point.

bigfishe · 18th August 2010, 12:15 PM

It's the sound I'm interested in.
I have lots of of bateries

AndrewT · 18th August 2010, 12:17 PM

Don't be silly.

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

bear · 18th August 2010, 04:02 PM

Quote:

Originally Posted by AndrewT

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?

_-_-bear

flg · 18th August 2010, 04:19 PM

Quote:

Originally Posted by AndrewT

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...

bigfishe · 18th August 2010, 04:31 PM

I'm running paudio 15 duel concentric 109 on the horn(thanks bear)and101 on the woofer and like it nice and quiet

17th August 2010, 09:47 PM	#1
bigfishe diyAudio Member Join Date: Jan 2007 Location: Nashville	F5 on batteries Anyone try to run these off batteries?

18th August 2010, 12:13 AM	#4
bear diyAudio Member Join Date: Apr 2002 Location: New York State USA	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?? _-_-bear __________________ _-_-bear http://www.bearlabs.com ...ur feeback please - like/dislike my what I have written? PM/email tnx. --

18th August 2010, 01:01 AM	#5
Bigun diyAudio Member Join Date: Jan 2009 Location: K-W Ontario Blog Entries: 2	Well the F5 isn't far off being a MOSFET Hiraga Monstre and that thing ran off batteries. Seems like a good starting point. __________________ "The test of the machine is the satisfaction it gives you. There isn't any other test. If the machine produces tranquility it's right. If it disturbs you it's wrong until either the machine or your mind is changed." Robert M Pirsig.

18th August 2010, 12:17 PM	#7
AndrewT diyAudio Member Join Date: Jul 2004 Location: Scottish Borders	Don't be silly. BTW, using horns does not help. Pq remains exactly the same. __________________ regards Andrew T.

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17th August 2010, 09:56 PM	#2
woody diyAudio Member Join Date: Jan 2002 Location: Tyrone Ga. U.S.A.	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!

17th August 2010, 11:09 PM	#3
alazira diyAudio Member Join Date: Jun 2007 Location: Las Vegas Blog Entries: 1	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?)

18th August 2010, 12:15 PM	#6
bigfishe diyAudio Member Join Date: Jan 2007 Location: Nashville	It's the sound I'm interested in. I have lots of of bateries

18th August 2010, 04:31 PM	#10
bigfishe diyAudio Member Join Date: Jan 2007 Location: Nashville	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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