JBL GTX47 4 Channel Automotive Continnuously Variable Crossover Grand Touring Series
This is a fantastic crossover for a multi amp system, I have it paired with the  [[ASIN:B00020IMB2 JBL GTE422 4-CHANNEL AUTOMOTIVE EQUALIZER GRAND TOURING SERIES]] and an SSL 310 crossover with 2-4 channel amps and 2-2 channel amps. I don't use the spatial enhancer due to the way I have the amps paired to so many drivers (9 pairs) but if you have a basic system with 4 drivers and a sub it might be nice. With the Eq and this crossover you can tweak the system to get the most out of every amp and driver. Coul