New dual-mono power amp

Tweakers' Asylum

Tweaks for systems, rooms and Do It Yourself (DIY) help. FAQ.

Hi all,
This is my first message here on Asylum altough I've been reading some of your very interesting posts now and then. I am in the process of building my first DIY stuff i.e a big dual-mono power amp. I want it as symetrical and with the least compromises as possible (yep ! like everybody else ;-) ). Budget is 2000 to 3000$. But as I am still unexperienced in the field of DIY; I would need (and greatly appreciate) some help.
I have already bought my transformers wich will be 2 Plitron LONO (low noise) at 1 KVa each. These with their inrush current reduced by 40% (compared with standard transfo)will allow me to bypass any relays 'cause I won't need them. Electrolytic caps will be Mallory CGS series.
Briefly, EACH CHANNEL will probably be built as follow: 1 KVa transfo, 4 Mallory CGS caps for a total of 120 000 uF (2 of 20 000uF and 2 of 40 000uF), 7 6N-twisted-copper-braids (with Teflon insulation) per wire throughout, copper lugs and stainless and/or brass screws throughout and WBT #0730 binding posts. Main boards are made of Teflon with copper traces. Chassis will consist of 5/16" thick anodized aluminium from top to bottom. Each (channel)will also have their own switch and power cord.
OK this is for the stuff I have but before buying or starting to build anything else; I would truly appreciate your tips or comments on the following questions:
- Is there anybody that could comment on the Plitron LONO sound ?
- What are the advantages of bypassing electolytic caps electrically and soundwise ?
-Can I mixed 70V 40000uF and 75V 20 0000uF cans together and if so, what are the effects of the voltage differences in the sound ?
- What would be the differences (soundwise) between 200V, 400V and 800V bridges ? Is a higher voltage better sounding ? And is using two bridges per channel (one for the + and one for the -) worthwile ?

- Finally, is separating the Led from the audio signal (by using a separate transfo)significant in bettering the sound quality ?
I know it's a whole lot of questions for a first post so I apologize to all for this lenghty message but I sincerely consider that a lot of you have great knowledge in DIY stuff and sometimes far better hearing than the vast majority of audio engineers. Therefore, you guies are my first port of call.
Again, any tips would be truly welcomed.
Best regards,
Marc-AndrÃ© Rodrigue
N.B Sorry for the english, I am french speaking ;-)

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Topic - New dual-mono power amp - scorpion 21:30:45 06/02/02 (5)

Re: New dual-mono power amp - Tony D. 19:29:18 06/03/02 (1)

Re: New dual-mono power amp - scorpion 05:37:08 06/05/02 (0)

Re: New dual-mono power amp - Banana 22:42:58 06/02/02 (2)

Re: New dual-mono power amp - scorpion 06:19:41 06/05/02 (1)

Re: New dual-mono power amp - Banana 06:57:03 06/06/02 (0)

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