Dual-500 king of the Castle

[mlucitt]

Glen,
<returning this thread to the original topic>
Can you point me toward the source of the soft start board you used for your D-500 project? I have a customer who wants a basic D-500 upgrade (WOA Control Board, output transistors, bulk caps, 1000V 50A bridge rectifier w/bypass caps, improved grounding scheme, etc.).
I am finding the 35,000uF 120VDC bulk capacitors at www.tedss.com - everything else I have

Also, any additional tips are welcome.

Mark

 

[e30m3mon]

Glen,
<returning this thread to the original topic>
Can you point me toward the source of the soft start board you used for your D-500 project? I have a customer who wants a basic D-500 upgrade (WOA Control Board, output transistors, bulk caps, 1000V 50A bridge rectifier w/bypass caps, improved grounding scheme, etc.).
I am finding the 35,000uF 120VDC bulk capacitors at www.tedss.com - everything else I have

Also, any additional tips are welcome.

Mark

I have just begun my trek down this rabbit hole...we're in good company with Glen's assistance!

 

[grapplesaw]

Glen,
<returning this thread to the original topic>
Can you point me toward the source of the soft start board you used for your D-500 project? I have a customer who wants a basic D-500 upgrade (WOA Control Board, output transistors, bulk caps, 1000V 50A bridge rectifier w/bypass caps, improved grounding scheme, etc.).
I am finding the 35,000uF 120VDC bulk capacitors at www.tedss.com - everything else I have

Also, any additional tips are welcome.

Mark

Hi Mark
I custom build those From a eBay kit. Basically use the printed board and relay then replace everything else and build up the traces.

 

[WOPL Sniffer]

Hi Mark
I custom build those From a eBay kit. Basically use the printed board and relay then replace everything else and build up the traces.

Glen, when you say "Build up the traces" are you saying "Populate the boards" or????

 

[J!m]

I'm thinking solder overlay on the traces?

 

[WOPL Sniffer]

I'm thinking solder overlay on the traces?

If you have to add solder to the traces, the boards were built incorrectly

 

[grapplesaw]

If you have to add solder to the traces, the boards were built incorrectly

Right
I am not taking any chances

 

[mlucitt]

In any case, would you be willing to build a board and let me populate it with your parts list. I am a big fan of not recreating the wheel. You have created a great solution/product; not unlike wattsabundant and the DC Protect Delay/Relay. We should make these the defacto standard soft-start circuit board here at Phoenix.

I spoke to Joe about soft start boards for the heavily modified PL700B amps, but Joe felt a soft-start board was not necessary and I agreed with him. But the modified Dual 500 is a whole different animal...
If you are not interested in becoming a multi-millionaire for selling boards like wattsabundant, that is totally cool. Could you post a link to the ebay website that you used.

Thanks,
Mark

 

[WOPL Sniffer]

In any case, would you be willing to build a board and let me populate it with your parts list. I am a big fan of not recreating the wheel. You have created a great solution/product; not unlike wattsabundant and the DC Protect Delay/Relay. We should make these the defacto standard soft-start circuit board here at Phoenix.

I spoke to Joe about soft start boards for the heavily modified PL700B amps, but Joe felt a soft-start board was not necessary and I agreed with him. But the modified Dual 500 is a whole different animal...
If you are not interested in becoming a multi-millionaire for selling boards like wattsabundant, that is totally cool. Could you post a link to the ebay website that you used.

Thanks,
Mark

With the custom builds Glen does, I would imagine he hasn't documented each and every nuance and having him build you a 500 would be easier. I know i never documented many things I have done.

 

[WOPL Sniffer]

Plus, giving up all the secrets that took you years to finger out would deter me.

 

[Gepetto]

E-I transformers are naturally gapped so they do not suffer the start-up saturation issues that toroids do.

Thus they do not need a soft start but if you like them they will do no harm as long as they are relay based (not thyristor based) with a relay that is truly capable of supporting your load.

 

[laatsch55]

In any case, would you be willing to build a board and let me populate it with your parts list. I am a big fan of not recreating the wheel. You have created a great solution/product; not unlike wattsabundant and the DC Protect Delay/Relay. We should make these the defacto standard soft-start circuit board here at Phoenix.

I spoke to Joe about soft start boards for the heavily modified PL700B amps, but Joe felt a soft-start board was not necessary and I agreed with him. But the modified Dual 500 is a whole different animal...
If you are not interested in becoming a multi-millionaire for selling boards like wattsabundant, that is totally cool. Could you post a link to the ebay website that you used.

Thanks,
Mark

Mark, I' have some factory speaker relays..iffn ya need some..

 

[mlucitt]

Thanks, Lee. I would be using a Finder relay that is rated at 16 Amps @ 250V from my parts bin. That one is good up to 4000 Watts per set of contacts. And if I use both sets of relay contacts for the Line wire I can double that rating to 32 Amps and 8000 Watts.
It has a 24VDC coil. I think that is pretty common.
I will also be using a RC network across both sets of contacts, 15uF 250V AC film capacitors (Mouser 598-ALH156K251B064) and 2500 Ohm 10 Watt resistors (Mouser 588-40F2K5E) to suppress the induction current across both sets of contacts.

Thoughts?

 

[J!m]

I know i never documented many things I have done.

Plausible deniability...

 

[WOPL Sniffer]

Plausible deniability...

When you have done a task a couple hundred times, you tend to do it automatically and not need the documentation.

 

[J!m]

I still manage to hit my finger driving nails...

 

[grapplesaw]

I agree the 700‘s have no need for a soft start. The d500 with the big caps draw a lot on startup (20 plus amps) and the amp grunts a bit. With the soft start it is only drawing initially 5-6 amps and when the relay kicks on it goes to about 10 amps for a microsecond and goes to about 4 amps till the caps are charges. The whole proc takes about 1 second or less to cycle the startup.

 

[grapplesaw]

In any case, would you be willing to build a board and let me populate it with your parts list. I am a big fan of not recreating the wheel. You have created a great solution/product; not unlike wattsabundant and the DC Protect Delay/Relay. We should make these the defacto standard soft-start circuit board here at Phoenix.

I spoke to Joe about soft start boards for the heavily modified PL700B amps, but Joe felt a soft-start board was not necessary and I agreed with him. But the modified Dual 500 is a whole different animal...
If you are not interested in becoming a multi-millionaire for selling boards like wattsabundant, that is totally cool. Could you post a link to the ebay website that you used.

Thanks,
Mark

Oh
just one million dollars?

 

[VSAT88]

Watch this video if you are wanting to see the PA2 setup and how it works

also you xan see what the Tane has for adjustments in the photo View attachment 60124

Reading over this thread and it has been a good one. Question. Using the Rane or other electronic crossovers do you wire straight adapters for the XLR to RCA as the PL amps far as I know have no balanced inputs. If so, how do you wire those?

 

[grapplesaw]

Reading over this thread and it has been a good one. Question. Using the Rane or other electronic crossovers do you wire straight adapters for the XLR to RCA as the PL amps far as I know have no balanced inputs. If so, how do you wire those?

It does let you wire the inputs for unbalanced input / output. there are many ways to change both inputs and out put for balance cables. Both electronically and with transformers.