The PS301 is the perfect combination of analog/linear working in conjunction with digital circuitry. Its linear supply section with a toroidal transformer paired with linear regulators nearly eliminate all stray radiation. The PS301 works well with other sensitive lighting and audio gear nearby. Its built-in microprocessor monitors temperature, voltage, and the current status of both the input and output. At 24 volts DC, power is thoroughly regulated and automatically decreases when needed. Current limiting in addition to short-circuit protection prevent hardware damage if a connection error or cable failure were to occur. A discreet buit-in fan turns on when needed to decrease the overall temperature of the unit. The PS301 also features a program input that can be channeled to any or even all of its three circuits. The unit also functions in either the 120VAC or 240VAC range.

• Ideal combination of analog/linear with digital circuitry

• Virtually eliminates stray-field radiation

• Works well with others sensitive audio and lighting gear close by

• Features a quiet built-in fan that turns on automatically when needed to cool unit

• Since each PS301 circuit is individualized, an issue with one does not impact the others

• Microprocessors control all of the switching, routing, and supervision capabilities, while the audio paths and power supply stay true to their analog character.

• The PS301 can be used with any unbalanced 200 ohms party-line intercom components.

Power Supply

• The PS301 can be used with any unbalanced 200 ohms party-line intercom components.

• The components and microprocessor which monitor and adjust the power supply's performance are separately mounted on their own circuit board, as far as possible from any heat source.

• At as low as 100VAC, the secondary voltage will remain at 24VDC while the available current will be slightly reduced from 2.4A continuous to 2.0A continuous.

• The transformer has primary windings for both 120VAC and 240VAC (50/60 Hz) and allows wide deviation from those voltages without any effect on performance.

• The voltage and fuse are changed on the rear panel.

• The microprocessor will also adjust the percentage of the 2.4A (continuous) current that is allocated to each circuit, depending upon the load on each.

• Reports the status of each circuit to LED indicators on the front panel: The top, green LED reports that 24VDC is being delivered to the system. The lower 3 red LEDs flash when that circuit is experiencing an overload and stay on constantly when thecircuit has been shorted and therefore shut down until the problem is solved.

• The monitoring and control functions include automatic adjustment of the termination impedance when the
  circuits are combined, adjusting to brown-outs or sudden drops in line voltage, monitoring the temperature of the heat sink and switching the cooling fan on when required

• After a circuit problem is eliminated, the PS301 continues to function normally with having to re-boot

• Since each PS301 circuit is individualized, an issue with one does not impact the others

• Able to perform alongside nearby electronic devices without interference

• The result of this combination is unmatched flexibility, structual strength, and clean, rich audio.

• Microprocessors control all of the switching, routing, and supervision capabilities, while the audio paths and power supply stay true to their analog character.

• The PS301 is a 3-circuit Power Supply with a specialized hybrid composition.

• Current draw (at 120VAC):
  • 0.14A (no load), 1.05A @ 2.4A DC out

• Power output:
  • 24 volts DC regulated @ 2.4A continuous

• Line termination:
  • DC: 5K ohms, 50 Hz-20 KHz: 200 ohms

• Aux. input: Mic level:
  • (-44dBm) 48K ohms, Line level (-24dBm): 1K ohms

• Size (excluding ears) :
  • 17" width x 9.5" depth x 1.75" height (432 x 241 x 44.5 mm)

• Weight:
  • 9.8lbs. 4.5Kg