RECN_2730A_GL2400_GL2600_Stereo_PCB_to_issue 3_C67_AF0571_replaced_with_AF2851_improve_preamp_stability October 7, 2013 RECN_2730A_GL2400_GL2600_Stereo_PCB_to_issue 3_C67_AF0571_replaced_with_AF2851_improve_preamp_stability