Yup, your experience is. Or unique. For smaller amps, it's a great option (if wight is not an issue) but for higher power use as amps got larger and music got louder, the failure rate grew to unacceptable levels. Pretty much every manufacturer that used these parts encountered the same thing.
Kinda. Depends on Venue or Music Genre. Music in clubs is about the Same. Depends, some are ear bleeding loud, some casinos are whisper quite with electronic drums to control stage volume to ridiculous low levels.
Power Handling of say a Kappalite 3015 to a EVM 15L is very much different. then again actual " tone" is not really amazing different.
And like Wasnex mentioned a modern driver might have a little more of this and that. But a vintage driver has alot more mid clarity and unique tone.
Far as weight a 17 pound Ceramic Compared to a 11 pound Neo is impressive yes. But 6 pounds isnt some ground breaking weight standard that will save the world. Big weight savings of 15 to 25 pounds is cabinet Design. Either lighter wood or quite literally making them smaller and smaller.
Being a music dealer in the 90s id say its easy to beat the market since 70% of the market was MDF and that krap is heavy. just going back to real plywood will shed 20 pounds or more.
Its slightly ironic cause my main decision between taking on Hartke or Mesa Boogie as a new vendor back in no internet 90s. I went with Mesa Boogie and became a dealer cause of my love for EVM speakers. And the whole line. Bass Cabinets and Guitar Cabinets were using the EVM drivers
Guys on this Forum will argue and get banned arguing about mismatching drivers and how this random brand 1x12 mixed with this random brand 1x15. or this amazing 2x10 loaded with the same old cheap Eminence speakers mixed with this other dumb speaker. Is worth getting banned for.
When i think, if a majority of them actually owned a Mesa Boogie EV loaded 2x15 the wouldnt waste so much time or even loose their account if they knew how good they sounded.
Likewise when guys spend 400 dollars on some tube DI and 200 dollars on some high pass filter to get to the board. Some guys can toss a old EV 1x15 on the stage. Put a vocal microphone on it. And its not gonna blow up the channel with too much bass and go to mains just fine.
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