...What is the intended purpose of this device? Are you just trying to make a box that does a lot of things?
If that's the case, you're going to find it moderately expensive to do all of the things you want to do with any sort of good
build quality. I also don't understand why you would need a 3.5 TRRS port -- trying to use your iPhone
headphones mic cable? What's the 2.5mm Input for if you already have a bunch of them stacked in the Kenwood and Motorola inputs? Why a Kenwood AND a Motorola radio input -- why not take example from the AD913 that has a multipin
XLR with different breakouts for different radios, that PI box is radio manufacturer agnostic for a good reason (not all radios use the 2x TS breakouts, check out the
MOTOTRBO lineup for the ultimate in radio pinout nonsense).
If I need an AD913, there's a good chance it's going to be built into my intercom rack somewhere in the theater, and not at
FOH. When I use a
Blazon, it's on top of my audio
console. If I'm at a
console, I usually have an RS201 Clearcom and
Handset built into my
FOH rack. If I need to get the Audio only from it, I'll just
throw a
QBox on top of my
console and use that as an intercom
speaker, or I'll use an
ICOM-R to strip the
power and get the intercom feed into my
console so I can keep it on the
cue bus. My
monitor from the audio
console is usually a pair of
headphones, so that's all I need.
The
point of this is that multiple single items in this instance are going to be more flexible than a single box that is tailor suited to one persons workspace. You're not going to find a comparable product to what you want because you can find a handful of single products that get the job done. For example, there aren't too many competitors to the AD913, you have Clearcom's TW-47 and that's about it, it's already such a niche product that you're just not going to find its functionality built into more products. It's not a trivial device to
build (go read the TW-47
manual some time, as with all Clearcom manuals it is very thorough and gives you some insight into just how much thought goes into that product).