You won’t need the W-M with the Q5/QT60. NRC covers things.
My apologies for getting radios wrong. The Grant would benefit.
The DRX-901 has been the “audio quality best” speaker thus far in my experience. This radio type.
The KENWOOD KES-5 is the
loud as hell winner, but it’s not as easy to which to listen all day with a “digital radio” (SMT) versus the older “thru hole” circuit boards
But,
since like new examples are $15-25 on eBay, I’d like to see you get one as funds allow and available speaker condition appears high.
I bought (5) for $60 a few years ago.
As you’ll be experimenting with what works best, these two are HQ and should cover the range as you move a speaker around your bench location to find optimal performance.
The KES-5 is super high efficiency, and the 901 less so to allow more fidelity.
I’ll be swapping back & forth in my pickup with these two until I’m satisfied the pair of jobs I want has been satisfied as being down on the carpeted floor firing forward under my legs is not the same as overhead.
There are yet higher priced Amateur radio speakers that may apply, but
location will be the hardest nut to crack at the bench.
I’m guessing “location” will differ for each, but there’ll be some correspondence which will have to do with the space (the room) and your seated position. My hope is that you’ll be able to identify at least one height over a floor coordinate which is all-purpose given aim axis similar.
The reference location.
.