stereo input preamp pedal?

[Alban]

Hi all,

I recently got myself a Yamaha Attitude 3 Ltd (awesome), and I was wondering if there are any stereo-in/mono-out preamp pedals. There are a couple of 19" versions, but since I ditched my rack mount equipment in favour of a pedalboard and a combo setup, I'd really like to hear some ideas on this.

[Alban]

Adding to the above, I already have the EBS Microbass II which more or less does what I want (channels A+B simultaneously to mono out), but I'm curious about any alternatives. The EBS is a great piece of kit but it's a bit too "clean" for what I want.