Streamer recommendations for dummies.


I’m new at this.
I need an e-net streaming device for AirPlay that can be set to a specific gain to prevent iTunes users from overwhelming my amp with the preset volume on their device. Anything above 60% is too much.
It would be nice to be able to EQ at the streamer as well, but the big problem is volume; when an iOS or OSX device sends a song to my amp at high volume (ear bud volume) it basically blows my bookshelf speakers off the stand.
Equipment:
amp: Hegel H160 -150 W RMS X2,   32-bit AKM DAC @ 24/192 except USB at 24/96 on 1 GB e-net.
speakers: SF Concerto on stands.Ben
casteeb
I guess because  the gentleman  asked for a streamer he could control the volume to keep people  that are using itunes and Airplay from blowing his speakers off the stands and in the Hegel manual it states Warning check itunes volume because the H160 will set it's volume to match iTunes when iTunes  starts playing to the H160 and certain family members aren't complying so he wanted a streamer to put between all of the iphones and ipads to limit the volume. That's the  only reason I can think of. 
Linn do v g streamers that take Spotify or airplay streams and send into other sources - standalone DS or the ones with amp in DSM. The volume controlled by LINN not people’s own devices ..... also lets you hookup Ethernet to NAS drive with all your digital files and rips on.
Thanks guys, I appreciate all the ideas. I've read up on node2i, I will review the LUMIN option as well.Ben
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Wow, LUMIN  is $2 - $10K, I don't think I have the money to play the LUMIN game, they do however have some amazing hardware.
Ben