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The FDM speakers (the "British" Reignmaker and the "American" Maverick) have a dial on the back that as its turned decreases the effiency of the speaker, reducing the volume. Im wondering if A. It actually works, and B. if the speakers actually sound good.
Ive not tried them but i have been tempted quite a few times.
The only problem is they would only really be useful in an open back cab unles you just want to set & forget.
If the usual eminence quality & voicing is there i am 100% sure they will sound amazing