...You mention having tried the MXR "once or twice" and being disappointed. It is not an easy plug-and-play device. You have to learn how it works in order to get much out of it. It won't work in the loop, and the attack knob may not be related to what you think it is, based on your comment about it affecting the tone.
...It will help you if you take a minute to write down exactly what you want from the compressor. For instance, maybd you need something really simple to use. Or with the fx loop idea, write down WHY you wanted to use the loop, because that will help you and us find a better answer.
I play fingerstyle, and I have a 35" neck-through 5-string. It's set up with a moderately high action and a pair of EG-40P's. With the high output of this bass, I found that the MXR was a bust for a few reasons: .
- With it set to provide a moderate amount of compression on the upper strings, it would hit the yellow LED and fart out on the B string.
- The gain/threshold range doesn't seem to be set up for high-output basses. It works much better with my passive 4-string Jazz, with lower output pickups (Dimarzio Area J's).
- With the pedal farting out so easily anyway, it was hard to judge what the Attack control was doing.
- I'm looking for subtle effects, and the controls were too touchy, especially for quick, on-the-fly changes on the gig.
I was mostly looking for a choice between transparency and tone enhancement, and something to help me cut through. The MXR gave me a lots of control over fairly transparent compression, but there was no "magic", and it forced me to turn my hotter basses down. In the heat of live performance, it was also too easy to tip it over into overcompression, or accidentally roll it back to the point that it wasn't compressing at all.
I'm wondering if a dual-band compressor isn't better for basses with big output and a big, honking lower register.
Unfortunately, FEA has a loooong waiting list at the moment.
Meanwhile, I have a Diamond enroute, and from what I've read thus far, it just might do the trick. If it runs into trouble with my bass as well, a few more dollars will get me into an Empress.
If that doesn't work either, then at least a few months will have gone by, and I'll be that much closer to an FEA SMX or Comp/Limiter...