bogner fish schematic - GroupDIY Apr 10, 2013aka the Hafler Triple Giant. I think the Fish was the handmade version but they were the same amps. Back when Bogner was a real company and not trying to be Mesa Boogie (who's another story..). I had a chance to pick up a Fish at a decent price a few years back and regret not doing so. Probably the best "brown sound" rack preamp ever made. freestompboxes • View topic - Bogner fish schematics Mar 29, 2008yes, the schematics has same mistakes, especially coupling capacitors. I built brown/strato channels and they both sounded really muddy. I do not remember exact values for the coupling caps I used, but it was in nF and not in tens of nF as is stated on the schematics and it started to sound much tighter.