Hi Mr Green,
I don't see AudioFrog stays 97db +/-1. It should be around 92~3db. Please see the graph below from AudioFrog website.
AudioFrog GB15:
Hertz Mille Legend 280.3
I recently bought a mk7 GTI and thinking to install Hertz Mille Legend or AudioFrog GB. I usually listen to Pop (vocal), country, acoustic guitar and classical/romantic piano. Not rap, heavy metal, techno.
I already have a Audison bit one, two Hertz HDP 4 and HDP 1 from my old car.
Here is...