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Audio Sector Kits & PC boards from AudioSector

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Old 3rd May 2014, 02:18 AM   #21
Peter Daniel is offline Peter Daniel  Canada
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Input ground is connected with output ground on the board, however, they are run as two separate connections to the board (SG and OG pads)

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Originally Posted by soundnovice View Post
i have 25-0-25 Vac (250VA) rated toroidal transformer. after rectification it will give 35.35Vdc. will this be ok for LM4780 amp in any of the mode?
Yes, that transformer is fine.
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Old 27th December 2014, 04:35 PM   #22
NaveenPunnana is offline NaveenPunnana
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Hi Peter,

I am new to this forum and i am interested in building a multi channel speaker system with LM4780 chips. Can you please suggest what should be the transformer that will be sufficient to power up all the chips. Below are the details of the system that i am planning to build.

No of satellite channels : 5 or 7 (60W)
Subwoofer : 1 (120W)

Currently i am on my way to collect some data.

Planning to use 30v-0-30v 5 Amp.
I already have 4 10000uf 63v caps.

Regards,
Naveen P.
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Old 2nd January 2015, 04:10 PM   #23
Peter Daniel is offline Peter Daniel  Canada
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It's not an easy answer and the choice depends on how you want to manage chassis build and overall practicality of the system. You may go with a separate transformer for the sub and additional two amp channels and power all the other channels from a second transformer.
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Old 27th June 2016, 03:53 PM   #24
Tac Elf is offline Tac Elf
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Peter,

For those of us who are red/green color blind, could you post separate schematics for the different configurations?
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Old 20th August 2016, 05:37 PM   #25
Peter Daniel is offline Peter Daniel  Canada
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Quote:
Originally Posted by Tac Elf View Post
Peter,

For those of us who are red/green color blind, could you post separate schematics for the different configurations?
That info, with pictures, was posted here: AudioSector-chip amp kits, dacs, chassis
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