Amplifier will be repaired to meet manufacturer standards, upgraded and tested prior sending back.
KNOWN MODELS CAN BE REPAIRED:
BBM266A20 / BBM2 66 A20
BBM466A20 / BBM4 66 A20
F19066920 / F190 66 920
NH6066920 / NH60 66 920
NH6166920 / NH61 66 920
9M8118T806BB / 9M81 18T806 BB
GSE166A20 / GSE1 66 A20
GS1E66A20 / GS1E 66 A20
KNOWN SYMPTOMS:
No Sound.
Loud white noise.
Machine gun noise through speakers.
Buying of used amplifier is not recommended, because it can fail soon for exactly same reason as your original one.
Please ask any questions you may have.