5v333

Re: Barry Porter "Net EQ"
« Reply #500 on: July 27, 2018, 07:12:39 AM »
If you buy a 19" case you prob get a blank front panel with it.
You could use that for a try out before you order your design from the panel manufacturer.
Its so easy to miss something out.


petermontg

Re: Barry Porter "Net EQ"
« Reply #501 on: September 18, 2018, 04:32:54 PM »
Is there any boards floating around or does anybody know where to pick a set this weather.

Best
Peter

weiss

Re: Barry Porter "Net EQ"
« Reply #502 on: May 05, 2019, 01:00:24 PM »
Is it correct that the onboard variable hpf is going from 75 to 200 hz?
what would be the easiest way to lower the values when using a potentiometer?

5v333

Re: Barry Porter "Net EQ"
« Reply #503 on: May 05, 2019, 05:01:22 PM »
Hello.

The schematic i have on my computer states clearly 15hz-400hz.

The filter is made up of two sets of RC (12db/oct). R varys when you turn the dual pot.

If you want higher min/max freq, lower the capacitors.
For lower min/max, increase the caps.



weiss

Re: Barry Porter "Net EQ"
« Reply #504 on: May 05, 2019, 05:46:48 PM »
Hello.

The schematic i have on my computer states clearly 15hz-400hz.

The filter is made up of two sets of RC (12db/oct). R varys when you turn the dual pot.

If you want higher min/max freq, lower the capacitors.
For lower min/max, increase the caps.
Thank you very much !

weiss

Re: Barry Porter "Net EQ"
« Reply #505 on: June 05, 2019, 11:02:46 AM »
anyone ever tried taking lundahl transformers into the circuit?
i saw hcl doing this with the thermos!

duende

Re: Barry Porter "Net EQ"
« Reply #506 on: June 11, 2019, 05:25:55 AM »
Hello,

I'am building a Net eq and i would like to know what switch is the best for this circuit , shorting or non-shorting ?

Thanks

weiss

Re: Barry Porter "Net EQ"
« Reply #507 on: July 01, 2019, 02:31:13 PM »
finally done with my build.





weiss

Re: Barry Porter "Net EQ"
« Reply #508 on: July 01, 2019, 03:19:43 PM »
So after some minor testing, i just think this eq sounds amazing!!

I became aware of 2 issues though:

First, when i look at the low-mid band (band 2 from the left), it seems to have less effect when turning the +/- gain knob compared to all the other bands. This problem exists on both channels!

Second, the Highpass filter on the left channel shows some weird behaviour: When i turn the knob from the lowest setting (about 15Hz towards maximum value, it already cuts the lowend a bit on the fully ccw position (which shouldn't be, at least not hearable). Turning it further cw actually makes the bass frequencies LOUDER instead of cutting it. This continues until 9 o clock position. Only then the hi-cut frequency increases to its maximum value.
The one on the right channel works without issues...

What are you thoughts on these misbehaviours?

Thank you all for the support!
Ansgar

iprovlek

Re: Barry Porter "Net EQ"
« Reply #509 on: July 02, 2019, 02:07:11 PM »
Weiss great piece of gear
 ;)
Looks amazing and Im bet sound too....


stybljan

Re: Barry Porter "Net EQ"
« Reply #510 on: July 04, 2019, 03:30:21 AM »
Do somebody have a gerber files for this project? All the links I tried are broken.

Thanks a lot

weiss

Re: Barry Porter "Net EQ"
« Reply #511 on: November 28, 2019, 10:09:29 AM »
Anyone ever used Lundahl LL2801 transformers in the Net eq?

Ricardus

Re: Barry Porter "Net EQ"
« Reply #512 on: November 28, 2019, 10:21:21 PM »
Wow. Another amazing looking project to do!
Audio mastering for hire..

Re: Barry Porter "Net EQ"
« Reply #513 on: December 01, 2019, 12:18:40 AM »
For those wanting all the files for this you can download them from this link.
https://we.tl/t-3vQVRxHjak


 

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