Bass amp for a tri-amped system?

Tmsorosk. I'll do some research on them. thanks

Sgr,
I instinctively agree with your comment. However, I've tried that configuration with my hybrid amps configured as stereo. what I found is I didn't have quite the dynamic resolution and power of low frequencies I get from my current set-up. My mono amps and speakers are manufactured by the company and compliment each other very nicely with the exception of the bass which the manufacturer suggested this set-up. The speakers have 2, 15" woofers in each speaker and require that additional power. The integration of the tri-amped set-up has been pretty seamless using the active crossover.

If interested, please see my posted virtual system for reference.

I am a stickler for coherent sound. So, I would say the same amplifiers should be used throughout the entire system. I am not sure what you mean by "dynamic resolution", but if you are not happy with the sound while using the same amplifiers maybe you should look elsewhere for the problem. It could be something as simple as cables.

there's a pair of Electron Kinetics Eagle 400 Mono block amps advertized on A'gon. I don't know the seller but the Eagle amps deliver excellent tight bass. Given your system, you may want to send those amps to Russ Sherwood at EKSC to have them checked. You'd probably want to send any old amps in to the Mfg too.