Ready-to-Run (RTR) SSR DC Speaker Protection and Delay GB

[gary s]

Either those pcb's are tiny or your amp rear panel is huge!!

 

[Vunce]

And the picture is cropped, correct on both accounts.
Heatsinks are 12” tall 😱

 

[gary s]

One hell of an amp chassis then. Keep up the coffee it must be late there now.

 

[meanie]

Envy!

Eagerly awaiting for mine to arrive

 

[zman01]

Zman,

SSR’s new home, USSA5 rear panel 🙂

Vunce,

Looking good - you are almost there! 🙂

 

[Vunce]

Vunce,

Looking good - you are almost there! 🙂

I’m there now Zman!!
My USSA5 is singing away with the SSR boards installed and they work perfectly!
Instead of using the SLB faston tabs to run the power for the very small gauge wire to the protection boards, I tapped off of the TP1 & TP2 positive and gnd vias with 22awg silicone jacketed flexible wire. Since it’s a dual mono power supply I did not want to run both boards off of one SLB for fear that the ground would be contaminated between power supplies. Also, the speaker return goes to its own channel SLB gnd tab bypassing the SSR board. In summary, the only connections at the SSR board are: amp in(+), speaker out(+) and DC power in(+/gnd). Four wires ultra simple 🙂
They work as described, nice 3 second turn on delay and when amp power is cut, so is any residual signal to speakers, immediately. Installing these gives your diy project a very commercial ”safe” feel to it.
Nice work Jhofland, JPS64 and X!!! Thanks.

 

[zman01]

Congratulations Vunce! Good too see that you've got the amp up and running and singing! 🙂

 

[xrk971]

Vunce,
Wow! Nice job on the build. SLB's and SSR's are coming through!

 

[fab]

Received my ssr protection boards, thanks X!
Their small size is very convenient and I had liked the original design from the start.
Fab

 

[drpro]

That's what I call elevated sound Vince.

 

[xrk971]

Has anyone else tried installing the SSR’s in their amps yet? Shouldn’t take more than a few minutes if you go with spade connectors.

 

[pinnocchio]

Just testing. Seems to be working beautifully!

 

[Vunce]

Nice Do!
I don’t know what I’m more impressed with, how clean, neat and tidy your work bench is or your test panel? 😀

 

[gary s]

I think he needs some more screwdrivers though.😉

 

[xrk971]

I’m impressed with that neat tidy bench too. Dang!!

Here is my messy bench by comparison, but I do keep my screwdrivers neat and tidy!

 

[gary s]

Very nice screwdrivers too, X.

You definitely need a bigger workbench it seems.

 

[pinnocchio]

LOL! You just haven't seen the other side of my bench... It's a little messy on the soldering station side...

 

[xrk971]

I actually have 4, this is the main fixed soldering one, there is also a test bench with o-scope and other instrumentation, a hardware assembly bench, and a SMT placement bench with microscope. But I agree that the soldering one could be bigger.

 

[pinnocchio]

I actually have 4, this is the main fixed soldering one, there is also a test bench with o-scope and other instrumentation, a hardware assembly bench, and a SMT placement bench with microscope. But I agree that the soldering one could be bigger.

No worry, I was speaking about my soldering bench being messy, yours I already know! LOL 😀

 

[Vunce]

My workbench is sort of like coordinated chaos!! It’s a perfect mess though because I still know where everything is 😀

Cheers Fellas