Monacor MPT-177

Used in my 1kw per side sound system. In series with 2 "power line" peizos, (3 piezos in series) . The old power line started crackling after 12 years of disco abuse at high volume. The mpt 177 is still (on test) if it blows, it blows, but after 3 all night discos it still sounds good, I hope it's gonna be OK.
I cannot find much hook up info on it, but wired in series, piezos seem to last OK, sharing the load in series, being in series also seems to soften "that piezo sound" a little.
I don't push my ears against them, I judge the over all sound and its as good as before when on the amps limits.
Thomann got it to my home in 3 days. At almost 1/2 the price of ebat or amadon.