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We use IRFP 140 N and IRFP9140N high current field-effect transistors, which are commonly used in PASSLAB and A50-L15. But the effect is better than all PASSLAB pure Class A effects. Superior to similar Class A PASS A30, KRELL KSA50, JLH1969 Accuphase Class A.
Due to the fact that the power amplifier board operates in Class A mode and generates a large amount of heat, it is recommended to install a heat sink of at least 3kg per channel.
Specifications:
Input voltage: DC ± 35V (can be rectified using an AC24-0-24V transformer)