The case is made very precisely. I use it for a home-built 100W Plexi Super Lead with standard dimensions. It fits very well. There is about 5mm of foam padding on each side of the amp. I can still have a vinyl cover on the amp inside this case. BIG PLUS is the space under the amp, where I can put 1x power cable, 2x 3m speaker cables, 1x 6m instrument cable, TubeScreamer pedal and Palmer PDI-06-16 attenuator. Yes, all this stuff!