Hi all,
I'm building two, three chanells amplifiers based on parallel LM4780 chips for my three way speakers.
Just completed the amplifier and power supply boards, I choose high capacitance (10000uF) for the bass amplifiers and low capacitance (1000uF) for the mid and tremble amplifiers. Each amplifier module has its own Power supply PCB.
I still need enclosures and power transormers.
Sound wise, is there any good reason not to use a single transformer (24v+24v secondaries @ 1000VA) to supply all three PS modules and amplifiers?
Is it better to use different secondaries (i.e. 24v+24v+24v+24v+24v+24v @ 1000VA) for each module and even better to use different transformers?
Regards
P
I'm building two, three chanells amplifiers based on parallel LM4780 chips for my three way speakers.
Just completed the amplifier and power supply boards, I choose high capacitance (10000uF) for the bass amplifiers and low capacitance (1000uF) for the mid and tremble amplifiers. Each amplifier module has its own Power supply PCB.
I still need enclosures and power transormers.
Sound wise, is there any good reason not to use a single transformer (24v+24v secondaries @ 1000VA) to supply all three PS modules and amplifiers?
Is it better to use different secondaries (i.e. 24v+24v+24v+24v+24v+24v @ 1000VA) for each module and even better to use different transformers?
Regards
P
pinkmouse said:I would go for two traffos, one driving the woofers, and the other the mids and highs.
Is this going to be better than multiple secondaries?
Thanks for the reply.
P
UrSv said:I would go for the big transformer but run separate bridges.
This what I'm thinking, but would I have the full advantages of tri-amp this way?
Regards
P
moamps said:My vote goes to:
two monoblocks,
two transformers in a each monoblock; bass + mid/high.
Regards,
Milan
It is two monoblocks, three channels each.
P
Padel said:Is it better to use different secondaries (i.e. 24v+24v+24v+24v+24v+24v @ 1000VA) for each module and even better to use different transformers?
Different secondaries is better.
Even better is separate transformer for each drive unit/amp/channel.
That would give you two trafos (one per channer) with 6 24V secondaries each, or (even better) 6 trafos with 2x24V each.
As you already have independent PSUs for each amp, it's just a question of trafos.
And that depend$ on how much you wanna $pend.
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