A few months ago, I bought a USA Lakland JO5 which was fitted with a preamp. A DJ-Retro from John East, according to the seller. Hm, strange, because the control plate of a DJ is slightly curved, and on the JO it's symmetrical. The knobs however indicate a DJ-Retro (black-chrome vs chrome-chrome on the regular J-Retro). I took the preamp out because I wanted to restore the bass to passive, and wanted to fit it to my Sadowsky MetroExpress. It doesn't fit; the PCB is too far forward to squeeze in the control cavity.
Point is: I can't seem to find which preamp it is. It's a symmetrical control plate (so you'd think J-Retro), the knobs are black-chrome (DJ-Retro)... Someone put some black tape which looks like kinesiology tape on it, and when I took it off it took a bit of the serial number sticker with it. It is barely readable, but what it certainly doesn't say is "East-UK [serial]", which it should say. So now I'm doubting it being something from John East at all.
Can anyone ID this mystery preamp for me?