Port City Grandville Review

Octa-Plus

Klein says the amp’s name came from realizing that he and Shull both owned old Pontiac Grand Villes in the past, and they agreed it would be a cool name for the amp. Settling on a name was the easy part though, and there were some design challenges. As Klein explains, “Rhett wanted a really flexible 2-band EQ, so we played around with some values and found what we liked. Also, he wanted a really low noise floor since he plans to record with the amp. The last hurdle was the tremolo speed. The GA-50 didn’t have enough variation in speed, so we made the circuit switchable between slow and fast settings to achieve both a slower and faster tremolo than would normally be on tap.”