SCR-DI : A very solid overall DI unit and preamp

It works great and colors the tone wonderfully.

The ultra low is very useful to get a big warm sound and stay out of guitar frequencies.

The ultra high adds bite.

The EQ is solid and usefull.

Plugging headphones or computer speakers into it makes it a great practice amp replacement, and aux in adds further features like playing along with music from your phone or computer.

The drive is ok, not great. Its mid sounding and bites. Very vintagey and fuzzy. You might like it or not

There is one problem. If you have a very hot output you will clip the preamp. There is a trim pot inside the pedal to adjust it but makes the preamp much lower volume than bypass, which must be compensated by either upping the volume of the preamp or leaving the trim pot in passive mode and lowering input volume on the bass or i do it with an compressor. Problem comes around only with VERY HOT output active basses, but it is there.

I recommend the product very much.