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hydroguy2 · Posted: Wed Mar 11, 2009 1:19 am Post subject: music input

I was planning on using a Sig200S intercom, in order to have a music input port. I haven't purchased my intercom yet and have access to a Sig SPA-400N intercom. It's new and a good intercom for an RV, but no music input.

So my question is....be gentle, I'm an electrical moron....since the SPA-400 is a 4 place intercom, could I use one of the pax mic input wires as a music in?
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Brian
Townsend, MT

bullojm1 · Posted: Wed Mar 11, 2009 9:11 am Post subject:

Brian-

I am not a 100% expert on aircraft electronics systems (YET!), but I don't think it will be a simple hookup. Aircraft headsets have an impedance between 150 and 300 ohm, whereas most audio input sources (CD player, ipod, etc..) have a output impedance of 8 ohms.

What this is equal to is plugging in some modern piece of audio equipment into the Phono input to your stereo. The volume is always screwed up because the impedances don't match up.

Now, maybe your radio has some external inputs. I think the ICOM A210 has 3-4 auxiliary inputs that you could use for audio.
_________________
Mike Bullock
http://www.rvplane.com
RV-7 | Superior IO-360 | Whirlwind 200RV
Garmin 430W | GRT Dual Sport EFIS
Status: Firewall Forward / Wiring

cjensen · Posted: Wed Mar 11, 2009 10:21 am Post subject:

Yeah, like Mike said, it won't work Brian...you'll either need the intercom with music input, or use aux audio inputs on the A210 if you have one.

FWIW...I got my Flightcom 403 off of Ebay for $110, and it's a stereo intercom with digital clearance recorder (won't be using that feature tho)...could look there for a deal! I dunno

_________________
Chad Jensen
N755CB|RV-7|Airworthy 7/6/2010
RV-7 Build Log

hydroguy2 · Posted: Wed Mar 11, 2009 11:09 am Post subject:

Thanks guys. I figured if it was possible someone else would have already done it.

I have a Icom 200 and don't see any music inputs. I watch Ebay daily looking for stuff, but never know if it's what I need or want. I have personal experience with the Sig intercoms in a high noise airplane, so was leaning that direction. I'll have to check out the flightcom403.
_________________
Brian
Townsend, MT

cjensen · Posted: Wed Mar 11, 2009 11:30 am Post subject:

Hmmm...I thought the 200 had the same inputs as the 210...same connector is used. I'd have to find the pdf install instructions for the 200 to see, unless you know for sure?
_________________
Chad Jensen
N755CB|RV-7|Airworthy 7/6/2010
RV-7 Build Log

bullojm1 · Posted: Wed Mar 11, 2009 11:59 am Post subject:

Looks like your in luck. According to the ICOM installation manual:

http://www.rv8.ch/files/Icom%20IC-A200%20Installation%20Instructions.pdf

The IC-A200 has three aux inputs just like the 210 does.
_________________
Mike Bullock
http://www.rvplane.com
RV-7 | Superior IO-360 | Whirlwind 200RV
Garmin 430W | GRT Dual Sport EFIS
Status: Firewall Forward / Wiring

hydroguy2 · Posted: Wed Mar 11, 2009 12:24 pm Post subject:

and once again I thank you. I was looking at the Icom website for wiring instructions and it doesn't show the pin out. I guess I should have brave the cold(neg 10*F this morning) and made a trip to the shop to grab the actual manual.

Some day I'll learn Frustrated

.....maybe
_________________
Brian
Townsend, MT

cjensen · Posted: Wed Mar 11, 2009 12:54 pm Post subject:

Nah...no reason to be Embarassed

...I'da done the same thing if it was 10 degrees! Though we were close at 19 this morning... Surprised

_________________
Chad Jensen
N755CB|RV-7|Airworthy 7/6/2010
RV-7 Build Log

hydroguy2 · Posted: Wed Mar 11, 2009 1:10 pm Post subject:

oops, I had to edit my post above. It was MINUS 10*F....it's March for gods sake!!!!!!!!
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Brian
Townsend, MT

airguy · Class E Joined: 12 Feb 2008 Posts: 100

Speed3Guy · Posted: Wed Mar 11, 2009 6:27 pm Post subject:

Talk about thread drift--while reading the replies, I forgot which thread I was reading! The reply that was here has now moved to the A210 thread.
_________________
Guy Prevost
Albuquerque, NM
RV-8a Flying!
http://websites.expercraft.com/geprevo/

svanarts · Posted: Thu Mar 12, 2009 1:44 am Post subject: