Airport Express Multiroom Audio
3x Airport Express’ for my 3 zones/rooms, de-cased and power supply removed.
3x Cheap STA508 24VDC amplifiers for each zone/room.
1x 24VDC 10A power supply
2x DC buck converters (one set to 5V for fans, one set to 3.3V for the airport express’)
3x 5VDC fans
I have a general question regarding multiroom streaming. Why not put each streamer/amp in the room it is used?
This is very cool. I have a two room setup with a couple Airport Express and Fosi TB10s in my network closet. Never even thought about removing everything from their cases and putting it into a rack mount enclosure. That would be much cleaner than all the little boxes and power supplies sitting on a rack shelf.
I would definitely be interested in a write up on this.
Do I see that right, the amps have exposed gain to the front of the case?
Edit: Also, on the psu end, do you have positive or negative running through the flip switch? I'm guessing green/yellow is ground?
Yes the potentiometers are exposed out the front of the casing so it’s easier to make adjustments. This would normally be left ‘set’ as I use my iPhone for volume control via AirPlay.
Active (brown) is running through the toggle switch as an easy way to cut all power if needed. Green/Yellow is earth.
Thanks! Yeah, I got all 3 Airport Express’ second hand off eBay. Fingers crossed these guys last. I wonder if your Airport Express was faulty or the internal power supply died?
Yeah if these die, I might go a similar route. Or maybe ditch AirPlay altogether.
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