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adding a second independent audio output to KN6500 for drawbars

Hi, I can't find my original posting but it was for attempting to add a second audio output to a KN6500 to channel the drawbars to a Lesly independently. This is the reply the correspondence:) Sent: Friday, March 3, 2017 2:28 PM Subject: separate draw…

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adding a second independent audio output to KN6500 for drawbars

smity

smity
Canada

Total Posts: 2
Joined: February 10, 2017

Hi, I can't find my original posting but it was for attempting to add a second audio output to a KN6500 to channel the drawbars to a Lesly independently.
This is the reply the correspondencesmiling
Sent: Friday, March 3, 2017 2:28 PM
Subject: separate drawbar output: separate drawbar output

Dear smity,

davetutt has posted to a discussion you're monitoring

Subject:
Re: separate drawbar output

Message:
Hi Mike and Peter

There is as far as I know only one DAC output on the 6500 which means the entire structure of the instrument has been designed to output all content via that converter. It is very unlikely that you will be able to split the sound of the drawbars off without there being some sort of compromise. There is one main tone generator chip (ic213) that has over 200 legs and it is extremely unlikely that there is a specific set that just outputs the digital signal for this particular sound. It would be a great shame to ruin an instrument for the sake of this function when as Mike says there are other instruments that can do it within the firmware.

I would be tempted to create a midi link between two keyboards and use one as the master for playing just the drawbars whilst the other does the rest of the sounds and therefore you have two stereo outputs you can mix down stream. This might appear more complicated but given there are no spares for these keyboards you could end up with just a pile of non working bits.

Hope this helps

Regards

Dave

On 3 March 2017 at 21:34, Peter smith Smith wrote:
Hi Again Dave, Thank you so much for your second reply. You have provided the very info that I was looking for. I agree with your evaluation 100% ...not good to go sniffing around when there are no replacement parts.
Some years ago I built a Theater Organ from scratch to meet my picky needs (in Attachments) you can see that in the upper right corner I have a WSA1R which would allow me to do the very thing you suggest. The rhyme section comes from an older E36 which is clunky by today's standards and the controls for it are on the upper left side of the wsa1r.
I had to break apart the E36 to do this. I want to build the KN6500 into the organ but for obvious reasons I do not want to dismantle it in order to accomplish doing the same thing. There is no problem installing the KN6500 in one piece into the organ but I will have to remove the whole upper structure (E36 and WSA1R). Once I do that I will have no place that I can install the WSA1R and have access to the controls.However if you look at the organ you can see a row of red and white buttons, this is actually a keyboard where I have exchanged the keys for those contact switches. That is then converted via software to create the correct MIDI signal for voicing on all the keyboards and WSA1R (presets).So I could tuck the WSA1R inside the organ and control it from those buttons (presets). I would not then have the ability to adjust drawbars in increments only just as a number of presets and the same for the other voices. Now you can see why I wanted to have the secondary set of output for the KN6500. I haven't pulled the organ apart at this stage to see if I can wangle some sort of compromise and keep access to the WSA1R but will do in the coming weeks.
Just thought you might be interested in the bigger picture.
Thank you again for you skilfull input it has saved me a lot of wasted time and is very much appreciated.

Regards
Peter (smity)

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Posted on March 4, 2017 at 12:50 AM
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admin

admin
United Kingdom

Total Posts: 1055
Joined: February 2, 2014

Re: adding a second independent audio output to KN6500 for drawbars

Peter,

Wow, the organ you built is amazing! I don't know how you electronics guys do such things.

First, some housekeeping, not just for you but for all members:

If you tick the 'Monitor this Post' box when you reply to a forum post you'll receive an email if someone else responds. In that email there is a link to the post, so you click that to go to the correct page if you want to reply.

If you can't find a post you have made, all of your personal posts and replies are in your Profile. So there's no need to search. Click on the links there in order to reply.

When you have composed your post and click on the'Post' button, you'll see what we technically call a 'small spinny thing' next to the post button. Sometimes this takes a very long time to send your post to the website. Be patient, it works almost 100% of the time. If I make a particularly long response, I always copy it all to my clipboard just in case something goes wrong and I need to paste it in again.

If you press the post button whilst the spinny thing is going you will usually see your post twice. You should be able to delete one of them yourself if that happens.

Ok, so, on to some things that might or might not help you.

Unfortunately, the WSA1 and WSA1R drawbars can't be individually controlled over midi as far as I can tell. I've whipped through the second reference guide but can't see a way to do it. Pretty much as you said.

On the KN6000 (and later) models, the individual drawbars CAN be controlled via midi. So you can use these models to send or receive midi signals when each drawbar is moved. I don't think this helps you with the Leslie problem but it is good to know. I've managed to control the drawbars on KN7000 using a Roland nano KONTROL 2, however, that was done via a PC because the Roland doesn't have full size midi connectors, only USB. Due to that you have to route through the PC just to send the signals from the Roland to the KN. This applies even to KN7000 because it still needs that PC (or Mac) acting as an interface.

If you were putting a PC in the mix then you would surely be better off running a virtual instrument for the drawbars and routing that to the Leslie. It would give you the highest level of control and realism for any drawbars organ setup.

You can overcome the midi connector vs USB problem (having to route through a PC) by putting a Bomebox in your setup. The Bomebox is a unique device that has only recently gone on sale to the public. It enables you to receive midi signals over midi cables, USB or network and send them back out via any of those three as well. It is extremely versatile and can be programmed to do many different things. You could probably close your garage door over your home network using your KN keyboard with a bit of reprogramming! Google it, looking at the kit you have you will want one when you see what it can do!

Hope some of that helps.

Best wishes,
Mike

Posted on March 4, 2017 at 7:02 PM

admin

admin
United Kingdom

Total Posts: 1055
Joined: February 2, 2014

Re: adding a second independent audio output to KN6500 for drawbars

Also have a look at the following post for some points of interest:

http://technicskn7000.com/kn7000-forums/technics-kn7000-discussion/...

Posted on March 4, 2017 at 8:21 PM