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Any benefit to offboard rectifiers with increased reservoir caps?
Rank: Member
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Joined: 4/18/2009(UTC) Posts: 27 Location: UK
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Looking for some guidance on a new dual mono Buff2 build; i plan on using it as a DAC / PRE with upcoming AC2 or Arduino based controller (thanks to GLT). Due to space constraints in the case i have chosen for the dual mono setup i am considering building a seperate power supply unit. I plan on using 4 R cores for 2 x PlacidBP, 1 x LCDPS & 1 Placid. Rather than just mounting the transformers in a seperate enclosure which at best would possibly reduce EMI in the DAC case i thought about making DC supply with seperate rectifier boards - http://sjostromaudio.com...ra-fast-rectifier-bridge - and reservoir capacitance in there - similar to the old Naim audio HICAP. Do you think its worth trying or not worth the effort? Or simplify with a packaged rectifier? Any input appreciated, Thanks, Luke
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Rank: Administration
Groups: Administration, Customer Joined: 10/24/2006(UTC) Posts: 2,868 Location: Massachusetts, USA
Thanks: 2 times Was thanked: 141 time(s) in 134 post(s)
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You are best off keeping the DC lines short, both for noise as well as improving the ability of the Placid to regulate.
There is no benefit to using separate rectifiers.
If you have to use two chassis I think you you be best off, if you can fit it, putting the power supplies in the main unit and the transformers in a separate chassis.
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Rank: Member
Groups: Member
Joined: 4/18/2009(UTC) Posts: 27 Location: UK
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Thanks Brian,
Is there any potential disadvantage to the transformers being located in a second enclosure with AC interconnect - interconnect <0.5M? I could look at a larger main case to include everything and shield the transformer area if yes..
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Rank: Administration
Groups: Administration, Customer Joined: 10/24/2006(UTC) Posts: 2,868 Location: Massachusetts, USA
Thanks: 2 times Was thanked: 141 time(s) in 134 post(s)
|
Just more wiring to do. You probably won't need to shield the transformers if you can fit them in the main case.
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Twisted Pear Audio Support
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Any benefit to offboard rectifiers with increased reservoir caps?
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