Tried it to me the level drops dramatically when using the inserts and the crossover between the pre amp and the parallel channel will cause additional drop in volume. I find that if you use a boost pedal in the inserts or have a hot bass pickup, you won't find much use for it. Seems to work best with active basses as I use this device on my source audio board in which I only run actives, plus the source audio pedals can take advantage of dual channel processing....
The filtered level of the clean channel is low. It’s not a crossover just a LpF for that channel. I use a compressor in the clean loop that also gives me boost. (I have a second boost in the loop if I want to not use compression) That works well for me but I’m also running the preamp channel at a good bit of gain to get the breakup I like, so that has enough level.
I wish they had a small knob for makeup gain on the clean channel.
this thing isn’t as simple as the name implies but I still like it a lot.