Page 1: ...ontrol for adjusting input signal for the ideal operating window Dual level output cunent indicators Low frequency output current limiting and indication Loop disable relay at turn on Loop open voltage too high indication Binding Post and Speakon loop connections Active Balanced lnputs Signal Ground LlFT switch Additional features include Custom designed heavy duty chassis open modular constructio...
Page 2: ...iter circuitry Green indicates the threshold of the limiter and is factory preset for 250mV 10dB Any applied signal should be illuminating this LED with the lnput Level control in the appropriate position Red indicates that the signal is 10dB or more into compression This led should not be illuminated all the time but should flash with programme peaks ldeal signal level will cause a continuous tog...
Page 3: ...that the amplifier is on and receiving mains power ln the advent of a Thermal Overload this LED will tum red indicating that the intemal operating temperature of the amplifier has exceeded a safe level of operation and that the amplifier has shut down and isolated itself from the loop The fan will continue to run and once the amplifier has had a cool down period the unit will restart automatically...
Page 4: ...ector The Speakon connector is wired 1 positive 1 negative Mains Lead Your amplifier is supplied with a heavy duty mains lead power cord appropriately rated for the mains supply voltage marked on the rear panel of your amplifier The wires in the mains lead are coloured in accordance with the following code Brown Active Blue Neutral Green yellow Earth Your unit must always be earthed Mains Circuit ...
Page 5: ...eld radiating from the cable it can interfere with other electronic equipment thus your loop should be restricted as far as possible to a defined listening area Do Always ensure the installation of your Loop is in accordance with wiring regulations As far as possible have your loop at the same elevation as the listening position 1 to 2 metres above or below this is acceptable but more cunent drive...
Page 6: ... ohm at 200H2 and an impedance of 4 ohms at lokHz Power into the loop 2O0Hz 12 5 VA but 10kHz the power 1O0 VA A constant voltage type amplifier diving the same loop at 5 amps 200H2 would be down 1 dB 10kHz Also the amplifier is driving a virtual short circuit for the lower frequency spectrum and thus would invoke protection circuitry to continuously operate in constant voltage type amplifiers Two...
Page 7: ...loop is between 0 5ohm and 1 0 ohm We also recommend that you ensure the cunent rating of the cable is well above the peak cunent required into the loop 2 times and that the insulation is of a heavy duty type with a good dielectric strength and high thermal capacity To help reduce the variation in wire gauges needed to satisfy every loop we suggest running a heavy duty figure 8 cable with a termin...
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