1. Model HDA-100 Gain Control is a 10-turn gain control. To obtain maximum attenuation of -18dB, turn the control fully counter-clockwise.
2. Model HDA-100 has an FM Trap or Switch. If you want to amplify FM, switch the FM Trap OUT. If you do not want to receive or amplify FM, switch the Trap IN.
咨询热线:0755-27091915
在线客服