Connecting 5 inputs to AMX240

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   Trying to finish up my Aspen MAX/IFD install and we hit a problem - I have 5 inputs to connect but there are only 4 available.  Is there a way to combine two into one or another way to connect 5 inputs.  I have IFD 550, 540, TAS 605/A, Aspen MAX and I need to connect the Voice Alert box for my Gear/Stall Warning system.  I don't really consider any of those to be "optional" so I don't see how the front panel jack input could be used.  Any suggestions?

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PeterC Members Profile Send Private Message Find Members Posts Add to Buddy List Groupie Joined: 30 Jul 2015 Location: CYKZ Status: Offline Points: 86	Post Options Post Reply Quote PeterC Report Post Thanks(0) Quote Reply Topic: Connecting 5 inputs to AMX240 Posted: 25 May 2020 at 10:39am
	Trying to finish up my Aspen MAX/IFD install and we hit a problem - I have 5 inputs to connect but there are only 4 available. Is there a way to combine two into one or another way to connect 5 inputs. I have IFD 550, 540, TAS 605/A, Aspen MAX and I need to connect the Voice Alert box for my Gear/Stall Warning system. I don't really consider any of those to be "optional" so I don't see how the front panel jack input could be used. Any suggestions?
	Peter - 1977 Cardinal RG C-FJPC - IFD550/540/240/322/605A/Skytrax100, Aspen MAX 2000, Trio A/P

AZ Flyer Members Profile Send Private Message Find Members Posts Add to Buddy List Senior Member Joined: 12 Feb 2018 Location: Tucson, AZ Status: Offline Points: 164	Post Options Post Reply Quote AZ Flyer Report Post Thanks(0) Quote Reply Posted: 25 May 2020 at 1:13pm
	There are issues to be considered when combining audio signals. It can certainly be done, but not likely using a passive combiner cable. Some form of mixer would be needed. See this informative explanation: https://sound-au.com/articles/audio-mixing.htm Edited by AZ Flyer - 25 May 2020 at 1:45pm
	Stan

EvieCuyler Members Profile Send Private Message Find Members Posts Add to Buddy List Newbie Joined: 29 Aug 2020 Location: Ashburn, USA Status: Offline Points: 1	Post Options Post Reply Quote EvieCuyler Report Post Thanks(0) Quote Reply Posted: 31 Aug 2020 at 12:58pm
	Hello...two or three things I would remark on the recommended association: - You would even now require the input resistor from Vo2 to IN2- - I would not prescribe to drive both earphone speakers by a solitary yield, this would diminish the yield drive and the outcome would most likely be equivalent to not utilizing the gadget in course You would at present need to assess the presentation of the gadget with this association, since this is out of the specs in the information sheet. pcb design for manufacturing checklist Edited by EvieCuyler - 04 Sep 2020 at 4:52pm