C725 Users Guide
Page 1: ...C725 Users Guide ...
Page 2: ...Josephson Engineering Inc 329A Ingalls Street Santa Cruz California 1 831 420 0888 www josephson com 2017 Josephson Engineering Rev B ...
Page 3: ...selecting one or the other To compare the two settings and explore their sonic character be sure to increase the gain of your recording channel so the levels match for the comparison The power supply will operate from 100 to 250 volt AC power by changing the setting on the power input module To change from 100 120 to 220 240 volt open the door next to the power input connector and pull out the sel...
Page 4: ...ge with any cable length up to 50 m Operation with ambient temperatures up to 45 C is possible with automatic shutdown if temperature exceeds internal limits Power supply The PS725 power supply uses a custom screened dual voltage transformer through several stages of RC filtering to a low noise MOSFET shunt regulator at 150 volts Regulated 9 volt DC for bias and vacuum tube filament are provided u...
Page 5: ...nal pattern omni subcardioid cardioid hypercardioid figure 8 Max permissible sound pressure 165 dB SPL Overload sound pressure 134 dB SPL 144 dB SPL Equivalent SPL due to noise 18 dB SPL A weighted rms Dimensions 63 mm diameter 100 mm wide at yoke 261 mm long Output connector Modified 12 pin Binder 691 series to power supply XLR 3 at supply Power supply output voltage B 150V A 9V Vpol 0 120V Made ...
