Tell me about the Headrush speakers. Currently looking for a decent speaker that I can use direct with my pedalboard. Have you used them with a PA system? I read somewhere these speakers are a bit boomy, but if you put any speaker on the floor that could happen.
Gotta be honest...they're "OK" for the job. Not like Atomic CLRs or silly high-priced FRFRs. Your audience will likely not be able to tell the difference between $249 FRFRs and $999 FRFR speakers. Frequency response is mostly flat, but higher priced FRFRs are touted for their clarity and audible difference. My wallet said no at the time and I'm content with these. HeadRush also makes an FRFR112, but they weigh more and aren't as easy to transport as the lighter-weight FRFR108s.
They're advertised as 2000W but are essentially 800W RMS each FRFR108. 8 inch woofer and unknown size tweeter cone. Solid construction, highlights a contour switch on the back for scooping mids. Up on speaker stands sounds fine without the scoop. Supports 2x adjustable volume XLR or ¼ TRS inputs, w/ one non-adjustable XLR out for chaining speakers. Ground lift switch. Slo-blo fuse. IEC power connector.
I prefer the FRFR108s up on speaker stands either side of my workstation, with no boomy or muffled results. They're about ¾ of full volume, and I prefer the FM9 master volume output about 10 or 11 o'clock. The FM9 won't clip at that level, yet the FRFRs are plenty loud enough for a 35 to 40 foot room. If needs be the MVO can be bumped up until noon, and that would cover the volume drop over audience conversation.
Have not yet gigged this yet, but may do so once my chops will be back up to snuff. Am trying to balance work/recreation time despite a busy schedule so neither is neglected. If I were to gig, I'd bring one FRFR108 and plug into the house PA, and utilize the FRFR108 as a floor monitor. (My local open-mic does not use floor monitors, but might welcome one for this purpose.)
A singer could effectively plug into my FM9's 2nd input and send a direct signal to the FM9's output & FRFR108; no need for effects or amplification; the FRFR108 would allow her to hear herself thru the FRFR108 rather than contend with the house band's volume.