Ive been tri amping for the last 30 years... I connect a electronic crossover between preamp and six monoblock amps,, I can select any xover points and change slopes,,, As I expierament with woofers mids and tweeters,,,
The true JBL cabinet has a shaped leading edge on the top of cabinet,,This is a knockoff copy,,,The legs are round and tapered,,, This one is squared and strait..
That's not a JBL built Metragon cabinet,,, The top of cabinet is not shaped right,,And the legs are not tapered,,, That cabinet did not come from JBL...