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trevord
Joined: 10 Jul 2018
Posts: 31
Location: Auckland
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 Posted: Thu Jun 10, 2021 2:36 pm Post subject: One radio many sound inputs |
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Hello All,
As my lovely gauges arrived for the Europa, they all seem to have SOUND outputs. Meanwhile, my XCOM 760 Radio has a single "MUSIC" input.
Looking for Audio Panels, I find lovely bits of kit from $2000 to $7000 which seems excessive on a 2 place homebuilt. Meanwhile, I can buy a HiFi Quality sound mixer meant for street buskers for around $65 - most of these will require a voltage converter from 12v to the classic USB 5v, but otherwise very cheap.
What are other builders doing ?
I have 2 x AV30 that can scream at you if you exceed AOA, The airspeed indicator that can warn if exceeded VNE etc, even my trusty old Garmin 296 can speak to me in UK English (have not had this working yet), plus a stall warner and so on, so I am thinking I will need around 4 to 6 sound inputs to feed my XCOM radio if I wish the sound to be played over the headsets. Once reasonable levels are set, I will not likely need to adjust the input sound levels.
My Bose A20 already has a music input jack point, so I actually have that bit covered.
Thoughts ?
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davidjoyce(at)doctors.org
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| Posted: Thu Jun 10, 2021 11:33 pm Post subject: One radio many sound inputs |
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Trevor, I refitted my panel a couple of years back with a G5 Touch system and all the bells and whistles. It needed an audio panel to blend all the inputs but I didn’t want to make room on the panel for a surface mounted one. It was a relief, planning wise and financially when my electronic guru recommended the Gretz Aero audio mixer, available from Aircraft Spruce for a mere 160 dollars. No voltage reducer needed. It fits inside the panel readily accessible(for initial set up) behind my right hand removable sub panel. It has worked faultlessly since. Regards, David Joyce, GXSDJ
On 2021-06-10 23:36, trevord wrote: | Quote: | --> Europa-List message posted by: "trevord" <trevord(at)orcon.net.nz (trevord(at)orcon.net.nz)>Hello All, As my lovely gauges arrived for the Europa, they all seem to have SOUND outputs. Meanwhile, my XCOM 760 Radio has a single "MUSIC" input.Looking for Audio Panels, I find lovely bits of kit from $2000 to $7000 which seems excessive on a 2 place homebuilt. Meanwhile, I can buy a HiFi Quality sound mixer meant for street buskers for around $65 - most of these will require a voltage converter from 12v to the classic USB 5v, but otherwise very cheap.What are other builders doing ?I have 2 x AV30 that can scream at you if you exceed AOA, The Kanardia airspeed indicator that can warn if exceeded VNE etc, even my trusty old Garmin 296 can speak to me in UK English (have not had this working yet), plus a stall warner and so on, so I am thinking I will need around 4 to 6 sound inputs to feed my XCOM radio if I wish the sound to be played over the headsets. Once reasonable levels are set, I will not likely need to adjust the input sound levels. My Bose A20 already has a music input jack point, so I actually have that bit covered.Thoughts ?--------TrevorRead this topic online here:http://forums.matronics.com/viewtopic.php?p=502313#502313http://forums.matronics.comsp; &nb"http://www.matronics.com/contribution" target="_blank" rel="noopener n=====
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trevord
Joined: 10 Jul 2018
Posts: 31
Location: Auckland
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| Posted: Fri Jun 11, 2021 12:34 am Post subject: Re: One radio many sound inputs |
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Thanks David,
This looks perfect functionally - great to hear you had reliable service.
Just a couple of further questions...
What radio do you have that it feeds into ? I have read that the XCOM760 does not work properly unless with an aircraft audio panel - something to do with impedance .... or do you feed the radio INTO the Gretz and then from the Gretz to the headset ?
The "range" of input/outputs suggest that it can do both.
I guess the downside would be if everything goes through the Gretz and then to the headset, then if it fails, I would lose the radio also ...
Thanks again, this is exactly the kind of thing I was looking for... I also have no panel space !
Regards
Trevor
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davidjoyce(at)doctors.org
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| Posted: Fri Jun 11, 2021 1:52 am Post subject: One radio many sound inputs |
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Trevor< I am embarrassed to say that I found myself with about £20,000 surplus insurance money to play with after my take off incident had resulted in a technical write off of my plane and Nev Eyre (bless him) and Ivan Shaw had masterminded an inexpensive means of repairing the broken bodywork. So I bought a dream panel. based around the G3X Touch with G5 back up, three axis autopilot, full ADSB etc. The radio is a Garmin GNC255 nav/com. There were five inputs into the audio panel - radio, SmartAss, transponder, EFIS and Nav, but space for lots more. The combined output goes to the headsets. I wouldn't worry about the reliability aspect - I think the components are mostly simple resistors that should have a near infinite life expectation. On top of that I see in the blurb that it says it is possible to arrange to have fail safe connection to your primary (radio) source.
Best of luck, David
On 2021-06-11 09:34, trevord wrote: | Quote: | --> Europa-List message posted by: "trevord" <trevord(at)orcon.net.nz (trevord(at)orcon.net.nz)>Thanks David,This looks perfect functionally - great to hear you had reliable service.Just a couple of further questions...What radio do you have that it feeds into ? I have read that the XCOM760 does not work properly unless with an aircraft audio panel - something to do with impedance .... or do you feed the radio INTO the Gretz and then from the Gretz to the headset ?The "range" of input/outputs suggest that it can do both.I guess the downside would be if everything goes through the Gretz and then to the headset, then if it fails, I would lose the radio also ...Thanks again, this is exactly the kind of thing I was looking for... I also have no panel space !RegardsTrevor--------TrevorRead this topic online here:http://forums.matronics.com/viewtopic.php?p=502324#502324http://forums.matronsp; .com" target="_blank" rel="noopener noreferrer">http://wiki.matronicssp; - List Contributio= &np;--> http://www.matronics.com/contribution
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trevord
Joined: 10 Jul 2018
Posts: 31
Location: Auckland
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| Posted: Fri Jun 11, 2021 2:04 am Post subject: Re: One radio many sound inputs |
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Great Thanks
Regards
Trevor
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trevord
Joined: 10 Jul 2018
Posts: 31
Location: Auckland
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| Posted: Fri Jun 11, 2021 2:05 am Post subject: Re: One radio many sound inputs |
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Just a small point,
Whilst the units are still available from Aircraft Spruce, the company's web site is gone and the emails to info(at)gretzaero.com bounce.
Do you know of another contact for the company ?
Regards
Trevor
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davidjoyce(at)doctors.org
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| Posted: Fri Jun 11, 2021 2:09 am Post subject: One radio many sound inputs |
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Trevor, Afraid not. David
On 2021-06-11 11:06, trevord wrote:
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churchy
Joined: 04 Nov 2011
Posts: 48
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| Posted: Fri Jun 11, 2021 2:20 am Post subject: One radio many sound inputs |
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Trevor
I have bought (but not yet installed) a unit with a similar functionality that is still available here:
http://vx-aviation.com/AMX.html
Rgds
Richard
Sent from my iPhone
| Quote: | On 11 Jun 2021, at 11:14, davidjoyce(at)doctors.org.uk wrote:

Trevor, Afraid not. David
On 2021-06-11 11:06, trevord wrote: =================================== =================================== =================================== =================================== ===================================
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rogersheridan(at)mac.com
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| Posted: Fri Jun 11, 2021 3:11 am Post subject: One radio many sound inputs |
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Hi Trevor,
Whilst I cannot endorse this product, it has been used successfully to mix, balance & amplify audio sources.
Regards,
Roger
https://www.amazon.co.uk/Behringer-MX400-Micromix-Noise-Channel/dp/B000KGYAYQ/ref=sr_1_6?dchild=1&keywords=behringer+400&qid=1623409437&sr=8-6
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Rick Moss
Joined: 21 Sep 2014
Posts: 96
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| Posted: Fri Sep 03, 2021 12:20 am Post subject: Re: One radio many sound inputs |
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I have 2 inputs (iPad for SkyDemon and my Dynon audio out) connected to the single audio input on my GNC255; I simply placed a capacitor inline with the iPad signal so as not to mess up the impedance.
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trevord
Joined: 10 Jul 2018
Posts: 31
Location: Auckland
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| Posted: Fri Sep 03, 2021 2:01 am Post subject: Re: One radio many sound inputs |
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Many Thanks
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trevord
Joined: 10 Jul 2018
Posts: 31
Location: Auckland
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| Posted: Fri Sep 03, 2021 2:27 am Post subject: Re: One radio many sound inputs |
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Hello all - thanks for the input.
I have now purchased the Gretz Audio mixer.
It may be some time before I can test it, but it seems to have the functionality I need to mix the multiple sound inputs.
https://www.aircraftspruce.com/catalog/avpages/gretzAudio_mixer.php?clickkey=23038
Regards
Trevor
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flydgw(at)gmail.com
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| Posted: Fri Sep 03, 2021 9:22 am Post subject: One radio many sound inputs |
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I have fitted the Gretz Audio Mixer after advice from Roger Sheridan and it works great handling the four inputs I have, allowing volume adjustment on each individually.
Dave Watts
G-BXDY Classic Mono 2,700 hours.
On Fri, 3 Sep 2021 at 6:08 pm, trevord <trevord(at)orcon.net.nz (trevord(at)orcon.net.nz)> wrote:
| Quote: | --> Europa-List message posted by: "trevord" <trevord(at)orcon.net.nz (trevord(at)orcon.net.nz)>
Hello all - thanks for the input.
I have now purchased the Gretz Audio mixer.
It may be some time before I can test it, but it seems to have the functionality I need to mix the multiple sound inputs.
https://www.aircraftspruce.com/catalog/avpages/gretzAudio_mixer.php?clickkey=23038
Regards
Trevor
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Trevor
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=503033#503033
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davidjoyce(at)doctors.org
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| Posted: Fri Sep 03, 2021 12:09 pm Post subject: One radio many sound inputs |
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Me also with a Garmin G3X touch system, which called for an audio panel, but I had no space for one on the panel. The Gretz is behind the R hand removable panel and has worked perfectly.
David Joyce, GXSDJ
On 2021-09-03 18:14, David Watts wrote: | Quote: | I have fitted the Gretz Audio Mixer after advice from Roger Sheridan and it works great handling the four inputs I have, allowing volume adjustment on each individually.
Dave Watts
G-BXDY Classic Mono 2,700 hours.
On Fri, 3 Sep 2021 at 6:08 pm, trevord <trevord(at)orcon.net.nz (trevord(at)orcon.net.nz)> wrote:
| Quote: | | --> Europa-List message posted by: "trevord" <trevord(at)orcon.net.nz (trevord(at)orcon.net.nz)>Hello all - thanks for the input.I have now purchased the Gretz Audio mixer.It may be some time before I can test it, but it seems to have the functionality I need to mix the multiple sound inputs.https://www.aircraftspruce.com/catalog/avpages/gretzAudio_mixer.php?clickkey=23038RegardsTrevor--------TrevorRead this topic online here:http://forums.materonics.com/viewtopic.php?p=503033#503033===========pa-List" rel="noreferrer" target="_blank">http://www.matronics.com/Navigator?Europa-List===========FORUMS -eferrer" target="_blank">http://forums.matronics.com===========WIKI -errer" target="_blank">http://wiki.matronics.com===========b Site - -Matt Dralle, List Admin.rel="noreferrer" target="_blank">http://www.matronics.com/contribution=========== |
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trevord
Joined: 10 Jul 2018
Posts: 31
Location: Auckland
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| Posted: Fri Sep 03, 2021 12:41 pm Post subject: Re: One radio many sound inputs |
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Thanks Dave and David - looking forward to listening to mine !
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