I have h75's paired with mg music black dogs (which are also made with weber parts, somewhat similar to the silver bell and j75 models)
I wouldn't say the h75's are bright
they surely have a strong attack, but the overall voicing leans to the darker side of the mids
quite punchy and bass heavy speakers
got them in an amazing deal with Capulin Overdrive
if I could choose from clips, I'd pick the m75's, which are warmer and more midrange centered
but for metal, the big punch of the h75's is amazing
they are pretty similar to actual celestion g12h30's, but they seem to sound slightly fuller and punchier, without the top end harshness