Class D and Me Too!... The Hypex Path

ryanosaur

ryanosaur

Audioholic Warlord
Well... According the the FedEx App, my package reached the local hub and is already out for delivery by this afternoon.
Strangely, with this update, the RED EXCLAMATION MARK OF DOOM returned.
IMG_0104.jpg


Anyway...
This is definitely exciting. Hopefully it won't take so long to get the JST EHR-7 Connectors.

According to Ghent, they are expecting to be back at work on or around the 12th. I wish I could get these in the US, but... *shrugs

I do get one of these with each Chassis:
1649354627787.png

Specifically, the LED Power Supply Cable. That appears to be the connector for the socket in question.
It is wired for Aux Positive Output and Gnd (pins J1.3 and J1.5).

Trigger In in J1.1

Does anybody no if I need to run a wire back to the 3.5mm Trigger Socket? Or do I just need to make certain it is grounded to the chassis?
 
ryanosaur

ryanosaur

Audioholic Warlord
ryanosaur

ryanosaur

Audioholic Warlord
ryanosaur

ryanosaur

Audioholic Warlord
Wow.
In hand.
Wow. ;)
I'm impressed. Even knowing the specs beforehand, this is some solid stuff. "Tank-like" is what comes to mind considering 5mm thick aluminum for the Top and Bottom, and 8mm thick faceplate. This is well beyond your standard audio gear case. The back plate is only 3mm thick and still a hefty 1/3 pound. (That front plate? 1.25#!!! Legit! ;) )
It will be interesting to get it all put together. Sadly, no instructions.
It also looks like they may have sent a wrong cable... but as best I can tell it is the cable I need to "play with" and would have to rebuild for the trigger. I'll check against the actual modules before ordering the parts I think I need, just to be safe. If they have to ship me the connectors, perhaps they can include anything else that might not be correct.

I didn't take photos since I was opening this outside, wearing gloves and just being careful. I'm not too worried about any contaminants, but the Lady has som lingering objections to vaccinations so rather than open everything inside, I unpacked and brought the components in after giving a little time in the sun and local air. :)

As an aside, going back and looking at the Chassis from DIY Audio Store, specifically the Pesante which I was considering... the Top, Bottom and Rear panels are all only 1mm thick! They would have required custom milling for the I/O connections, and I would still be left doing custom work myself to be able to mount the modules. While cost is low for the chassis in comparison...

What I got from Ghent is outstanding!
 
ryanosaur

ryanosaur

Audioholic Warlord
Ok… my reading comprehension wasn’t borked, rather my knowledge of how these triggers work…

the product sheet states that when a trigger voltage of between 3-12vdc is applied to pin J1.1, the SMPS will enter a Standby Mode…

when voltage is applied.

When that voltage is removed, the unit wakes up.

This, of course, is opposite of how the AVR trigger operates. When you turn the AVR on, it applies the trigger voltage.

I need to find a solution which will ideally apply the trigger voltage to the Amp Modules only when the AVR removes its trigger signal. Thus a circuit with switched low voltage power supply that reads the ACR trigger and does the opposite.
  • If trigger signal is present, then power supply is off.
  • If trigger signal is absent, then power supply is on.
Anybody? ;)
 
adk highlander

adk highlander

pessimistic optimist
So you are asking for help but not posted any pictures of this tank like build? I feel I don't know you.
 
Eppie

Eppie

Audioholic Samurai
An entirely electronic solution would be ideal but it would be easy with a simple mechanical relay and 9V DC power adapter. Feed the 9V through the normally closed contacts on the relay to keep the amp in standby mode. When you power the system on, use the trigger voltage from the AVR to trip the relay and activate the amp. Might need some components in conjunction with the relay to draw the proper amount of current from the trigger out. Maybe a resistor in series to act as a voltage divider. Maybe TLS Guy would have an idea? This could also be done with a switching transistor to eliminate the relay but that will require some proper circuit design.
 
ryanosaur

ryanosaur

Audioholic Warlord
Just because it is a complete hang up, in a manner of speaking...
Ghent Audio in Shanghai just updated their website to possible reopening on 5/11. Just yesterday, they were still claiming 5/5.
Shanghai is a mess right now.
 
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