: 450 Dual Zone Priority Mixer
450 Data Sheet
450 Flow Chart
450 User's Guide
To disable phantom power from microphone input #1: 1. Disconnect power from the 450. 2. Remove the 0-ohm jumper R48 in the extreme left rear corner of the 450. 3. To disable phantom power from microphone input #2: Disconnect power…
Disconnect power from the 450. Solder a insulated wire jumper to the rear half of JP8. Be careful not to bridge the gap between the front and rear portion of JP8. Solder the other end of the wire jumper to…
Greater than -60 dB when measured at 1000 Hz. Greater than -35 dB when measured with a 18 kHz tone.
Increase the value of the following resistors for the appropriate priority: Priority 1: R229 and R230 Priority 2: R321 and R322 Priority 3: R141 and R142 The amount of time increases in direct proportion to the amount that you increase…