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Re: arrakis 12k series issues
To: CRTech <crtech@crtech.org>
Subject: Re: arrakis 12k series issues
From: Mark Croom <markc@newmail.kinshipradio.org>
Date: Fri, 3 Nov 2017 21:39:48 -0500
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I'm a little confused here --

I've never had an issue using Tip/Ring into an electronically balanced input with either the 286A or the 286s. I rarely connect grounds on balanced line level gear.

Is this something unique to the original 286 that I haven't encountered yet? I the INSERT jack is unbalanced, but the TRS output, at least on the more recent ones, is electronically balanced and if you put that balanced signal on the balanced inputs of a console, I have never failed to get audio through.

So I'm having a little trouble getting my head around this issue.

That said, if the mods on the Arrakis board have anything to do with patch points then I would definitely remove them, put everything back to factory if possible, and THEN use a signal generator and tracer to see what's coming through, or where it's getting lost.


On Mon, Oct 30, 2017 at 12:53 PM, Ron Huckeby <huckebyrj@gmail.com> wrote:



The DBX is unbalanced output. If you used a stereo plug for your output connection and you are going into a transformer on the mic channel (I don’t know what those boards have) you have an open connection. I ran into the same thing using StudioHub on Axia with a DBX mic processor. Premade stereo plug, wired to my own RJ45, no ground, no audio.


So, first thing is put a known signal on the mic input to the board to see what you have.


Follow-Ups: RE: arrakis 12k series issues
("Ron Huckeby" <huckebyrj@gmail.com>, 6 Nov 2017 22:55:56 -0000)
RE: arrakis 12k series issues
("Ron Huckeby" <huckebyrj@gmail.com>, 15 Nov 2017 00:09:51 -0000)
References: arrakis 12k series issues
(Robert Chrysafis <kc8gpd@hotmail.com>, 29 Oct 2017 12:47:41 -0000)
RE: arrakis 12k series issues
("Ron Huckeby" <huckebyrj@gmail.com>, 30 Oct 2017 17:53:13 -0000)
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