Hi guys and gals

I think my boss cs3 compressor might be broken in some way. the problem is its giving me volume drops/ dampening my sound when I play ...
maybe this is normal? it didnt do that in the shop I think.

thank you
Marshall haze40
Yamaha GA15
Line 6 pod GX
Ibanez PGM301
Yamaha self customized EG012
Jackson KVX10
Boss DS1
GE 7
Vox satchurator
Home made TS808
Belcat delay
yeah compressers do that, it brings the loudest volume in your playing closer to the quietest, then you compensate with the output/volume control.