"Bamboo Project" : Dual Mono 3E Audio 480-1-29A Amplifier

[daniboun]

Tomorrow I will finnaly get my custom case for Micro audio 600R2 power supply and two 3e 480-1-29A amplifers, so have question for those who already built this configuration (@daniboun) Did you connect Micro audio GND point to chassis earth point or not?

Page 8 of the user manual does not state that this is mandatory but it is better to do it.

 

[CamRector]

I did as well.

 

[pseudoid]

...plus I am not good at graphs.

May I recommend that you perish this thought?

Cartesian coordinates - in the easy 2-D universe - are simply called the x-axis (born 'abscissa'; the independent variable) and the y-axis (born 'ordinate'; the dependent variable). No need to pretend it is rocket-science. Probably a 30minute youtube tutorial would allow you to wrap your head around it.
I tell you this, because I hated 3-D (X/Y/Z) coordinates, until I realized that ignoring them were not gonna make them go away!
So, I forced myself to adept, instead of dismissing graphs which become hurdles in life and not just in audio circles.

 

[Overseas]

Graphs are ok by themselves, I work in finance.

It is interpretation of technical meaning that evades me.

 

[bolzanis]

My (slow) progress

More to come soon...

 

[Overseas]

Nice.

 

[bolzanis]

Finished....sound is simply stunning. If you going on this project I really recommend using Micro audio SMPS.

Enjoy

 

[DaveFred]

That's pretty epic! Nice idea.
How did you mount to the heat sink - did you have to thread/tap the holes?

@daniboun

I am not sure I saw the answer on how the amp board heat sink was mounted to the chassis heat sink.

 

[DaveFred]

@daniboun @3eaudio

With all the comments posted about how to correctly wire the XLR connector to the 480-1-29A board, with regards to shield, ground, chassis ground etc., it does seem most have ignored the "correct way" and simply gone with what is shown in the sample sent to Amir,

And are using the JST harness that ships with the 480-1-29A board without any ill effects.

I take it this is considered best practice in this case?

Trying to decide how to wire mine...

 

[daniboun]

@daniboun @3eaudio

With all the comments posted about how to correctly wire the XLR connector to the 480-1-29A board, with regards to shield, ground, chassis ground etc., it does seem most have ignored the "correct way" and simply gone with what is shown in the sample sent to Amir,

View attachment 404189

And are using the JST harness that ships with the 480-1-29A board without any ill effects.

I take it this is considered best practice in this case?

Trying to decide how to wire mine...

Just wiring mine in that way (shared picture). Works great for me and absolutely dead silent.