Rolls SX 21

Very good indeed.

Perfect sound balancing tool, match your sound to the venue very quickly.

I use this between my Mackie mix 5 and my E400 t, amp, hi & lo outs of my Rolls, into the 2 stereo channels of the E400, one E400 out goes into a massive, passive 18" reflex bass cab, the other E400 out, goes into a passive 10" with horn. I'm solo & looper, doing medium rock to regae from last 50 years. I have a destinctly mono sound without any effects. My sound is clean and powerful enough for big & busy bars. The Rolls really kicks up the ability to "make them have it". A great little tool.

I must mention that the other main "out" of the Mackie mixer goes to my active monitor.

Great device, simple and to the point, use it with an octaver.

I?ve been looking so long for this little thing. When you use a Boss OC-3 in the polyphonic mode you can filter the ugly low-mids out with the Rolls and your guitar gets an enormous depth on the low strings. Before I had to use a stupid 19inch machine, but this one nice fits on my effects board.

Really good portable crossover

Used in my bass rig. A really handy bit of kit. Small, compact and easy to use.

Brilliant bit of kit.

Use this on a 12-string bass; have to sat I was skeptical given the size of the unit how hit would perform, but perform it has. It's set up in such a way that I can route the lower bass frequencies to a regular bass set up and the higher (octave) strings to a fuzzier setup/guitar amp. Brilliant.