I have (2) RANE AC22B crossovers that I am going to MOD seriously for my tri-amped system..I may buy a used 23B f ya’ll think it’s worth modding.
Battery supply is a must for these units and My AC POWER SUX and I am bombarded by industrial and Airport RF..
my AC lines are way out of spec like 4.5%thd and the power company won't fix it..
not to mention all the surges and other nasties from 2 industiral parks within 3 miles of my house
I am working on transformer fix for my amps but I have (2) Crown k2's
(2) Bryston 4BSST.. that's like 6000 watts to power!!! All of it is wired 240V!!!
Thru a cruddy 5 KVA industrial 3Ph transformer for now.
Somebody here did a nice dual +/- 12V batter setup with circuit schems and parts list for a pre amp I believe and I can't find it..
I have tons of wet led acid batteries(I have already taken care of sealing and venting for indoor use) the I can configure in +/- 6,12, or 18V.
Where I need help is the Rane is +/- 15V supply. Can I change the TL072 op amps or will 12 V suffice in Driving this unit?
http://www.rane.com/pdf/ac22bsch.pdf
I have (2) bryston 10B’s also that I may try to battery power when I get them opened up
IS the Rane worth fooling with?? I wanted it maily for a sub x/o because of the 4th order slopes. The high pass will be fed to the Bryston and chopped again.
Thanks for the help..
I am a long time audiophile with a ME degree..
My limited EE circuit knowledge has all but left me but I am slowly getting there.
So help with picking right caps and such for the battery supply??
And mods for the rane?? Op-amps and such.
PLEASE?????
Battery supply is a must for these units and My AC POWER SUX and I am bombarded by industrial and Airport RF..
my AC lines are way out of spec like 4.5%thd and the power company won't fix it..
not to mention all the surges and other nasties from 2 industiral parks within 3 miles of my house
I am working on transformer fix for my amps but I have (2) Crown k2's
(2) Bryston 4BSST.. that's like 6000 watts to power!!! All of it is wired 240V!!!
Thru a cruddy 5 KVA industrial 3Ph transformer for now.
Somebody here did a nice dual +/- 12V batter setup with circuit schems and parts list for a pre amp I believe and I can't find it..
I have tons of wet led acid batteries(I have already taken care of sealing and venting for indoor use) the I can configure in +/- 6,12, or 18V.
Where I need help is the Rane is +/- 15V supply. Can I change the TL072 op amps or will 12 V suffice in Driving this unit?
http://www.rane.com/pdf/ac22bsch.pdf
I have (2) bryston 10B’s also that I may try to battery power when I get them opened up
IS the Rane worth fooling with?? I wanted it maily for a sub x/o because of the 4th order slopes. The high pass will be fed to the Bryston and chopped again.
Thanks for the help..
I am a long time audiophile with a ME degree..
My limited EE circuit knowledge has all but left me but I am slowly getting there.
So help with picking right caps and such for the battery supply??
And mods for the rane?? Op-amps and such.
PLEASE?????
ok.I have decided on replacing the input and gain buffer 33078 with
(a) ad797.. they seem to be real finicky and may need to change some
other component values to get gain right.
(b) ad843 drop in??
(c) OPA 627.. I know I need single/dual adaptor..
Suggestion on circuit mods using the above.
(a) ad797.. they seem to be real finicky and may need to change some
other component values to get gain right.
(b) ad843 drop in??
(c) OPA 627.. I know I need single/dual adaptor..
Suggestion on circuit mods using the above.
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