Australian Monitor f,4aoo & fi4rzoo -) (_ -) (- Operation Manual
IMPORTANT! Please read carefully. This operation manual contains important information regarding safety precautions, installation, performance, operation and maintenan e of your Piseries porcramplifier. You should familiarize yourself with the contents of this manual before operating your amplifier.
Contents Page 1. lntroduction 2. Controls, Connectors and lndicators 2.1 Front Panel 2.2 Rear Panel lnstallation 5 6 7 3. 4. Operation 5. Bridge Mode 6. Two Ohm or Not Two Ohm 7. Maintenance 8. Warranty 9. Specification I 11 13 15 16 17 18 19 List of Illustrations Page Figure 1. Block Diagram Figure 2. Front Panel Layout Figure 3. Rear Panel Layout 5 6 8 Figure 4. Case Dimensions 10 Figure 5. "Speakon" Connector Wiring Figure 6.
Features: chassis. - 1 Watt output indication (2.828volts). construction for ease of servicing. - 1 dB below output clip indication. - Custom designed, 2RU heavy duty alloy - Open modular - Symmetrical layout - even weight distribution. supply. - High efficiency toroidal mains transformer - Binding post and Neutrik "speakon" output conneCtion. - Stereo or bridged / mono operation. - well-regulating, high current power - lnput signalstrapping (loop through) - Efficient front to back cooling.
Introduction 5 1. Introduction Congratulations on choosing Australian Monitor for your professional amplification requirements. The design of your P4-Series Audio powerAmptifi ers e.mbrgce all the aspects of a well designed unit. The visual design, mechanical, electricalLnd sonic pa_ rameters, along with our dedicated manufacturing process, have all been optimized to provide profesa sional tool that exhibits quatity, reliability and longev_ itv.
2 Controls &- Connectors . Controls, Connectors & Indicators r-l "gI c.
Controls Front Pi Series models have identical front panel layouts. Fig u re 7 shows the panel layout of the PlSeries. The fu ndions of the controls and indicators are as fol lows: 2 7 Panel The I & Connectors 3 Fault Indicator This amber LED will flash when a fault condition exists. The fault detection circuit monitors the difference between drive and output in your amplifier.
Controls 81- Connectors ftfL]||ftffi C,-l C_:f ,:)-:I C] c., (--) r*-, qo;, F (a28,9)0d3 --.-.-)(--)i $ $$J ll t a I q rO! j<-- r-.-.-.
Controls &- Connectors 9 Rear Panel to 24O volt mains supply. 5 NOTE: Your unit must always be earthedt Balanced Input A female 3-pin XL type connector is provided on each input: Pin 1 = SignalGround; Pin 2 = Hot (non-inverting or in phase); Pin 3 = Cold (inverting or reverse phase). 10 Mains A 20mm x Smm fuse drawer is provided within the housing of the IEC mains connector. When you recieve your amplifier it will have a working fuse and a spare fuse inside the fuse drawer.
I0 Installation t nFI ioG' ------l r I t-l I t J @tfiltfl OOUU|] c-) (:-\ (-l (::=== o(== I q o c-:(-) (-) (:-'-\ -@ I o : $i 3? q o t ro c{ o lf lt rO o {o !t Ki o@ c:=== (:::::::::) c:=:::= (:::::::= I l-r F-r Figure ltu 4 ( 3-l Dimensions
lnstallation 1 I 3. Installation heat to build up within the unit and possibly force the unit into its thermal shutdown mode. Power Requirements Model: PlsM Mains Voltage Fuse Rating 8 Amps 240,220-230 idle Power consumption at Power consumption at rated Model: lf the units are to be operated in an environment = power = 120Watts. 1450 Watts.
I 2 Installotion Output Wiring When wiring to your speakers always use the largest gaugewire yourconnectorwill accept. The longerthe speaker lead the greater the losses will be, resulting in reduced power and less damping at the load. We recommend using a heavy duty two core flex (four core flex if bi-amping) 10 to 12 gauge (2mm2 to 2.5mm2 or 50/0.25 or equivalent) as a minimum.
Operation l3 +. Operation accept signal. The lnrush Cunent Supression (lCS) circuit is in operation for the first 0.5 seconds. This imits the mains cunent to prevent "nuisance-tripping" of circuit breakers. l IMPORTANT All signal source equipment should be adequately earthed. This not only ensures your safety but everybody else's as well. Faults can and do occur in mains connected equipment where the chassis can become'live" if it is not properly earthed.
l1 Operation Each channel of your Plw/F,hzn amplifier has a nominal balanced input impedance of 3OkOhms (@1kHz) and should not present a diffiq.rlt load for any signal source. Your signal source (i.e. the equipment feeding the amplifier) should have an output impedance of 600 Ohms or lower to avoid urnvanted loss in the cabling. h i gh freq uency difference between the amp earth and source equipment earth appears to the amplifief s input as a signal and is amplified as hum.
Bridge 5. Bridge Mode The term BRIDGE is used when two independent amplifier channels are used to drive the same load. The load is in series (a bridge) between the two amplifier channels. ChannelA is used asthe "dominant', channel and its output is in phase with the input signal, and channel B has its phase reversed so it is exacily 1g0o out of phase with the input signal. As two amplifiers with a phase difierence of 1gS are now driving the load you will now have double the voltage into the load.
Two Ohm or Not Two Ohn 6. Two Ohm or Not Two Ohm specification sheet is derived from NOTE: Ensure adequate ventilation and monitor the FAU LT indicators to guard against thermal shutdown when driving two ohm loads. A Preamble. The load that a loudspeaker presents to an amplifier is very complex and at different frequencies can be inductive, capacitive, resistive, or a combination of these (reactive).
Maintenance I7 7 . Maintenance PAau/h4tzm ampl ifi er wi ll need minimat maintenance. No intemal adjustments need to be made to the unit to maintain optimum performance. Y our To provide years of unhindered operation we suggest a maintenance inspection be canied outon a regular basis, say every 12 months or so. Fan s Due to the openness of the air path through your PiwlPrhzu amplifier, very litfle dust should setfle within the amplifier.
l8 Warranty 8. Warranty Australian Monitorwarrants the original purchaser of each PA-Series amplifier (purchased at an authorised Australian Monitor dealer) that it will be free from defects in materials and workmanship for a period of two (2) years from the original date of purchase.
SpeciJicafion 19 Model , PitZOO Model , PIAOO Output Power E.l.A 1 kHz, <0.1 06 THD+N. Sohm Single 44OW Both channels 400W Single channel Both channels Pulsed @ 1 kHz, at onset of clipping, 10% duty cycle, re 4 ohms. Pulsed @ 1 kHz, at onset of clipping, 10% duty cycle, re 4 ohms. Single channel driven. Both channels driven. Single channel driven. Both channels driven. Bridge mode 16 ohm load 8 ohm load Bridge mode E.l.A. 1 kHz, <0.1 % channeldriven. driven.
Australian Monitor Distributed by: Audio Telex Communications Pty Ltd ACN 001345.+82 Australia www.audiotelex.com lnternational Enquiries Ph: 61 -2-9647 1 411, Fax: 6i -2-97 48 2537, E-mail : ho@audiotelex.com Sydney Ph: (02) 9647 1411, Fax: (02) 9648 3698, E-mait: nsw@audiotetex.com Melbourne Ph: (03) 98907477, Fax: (03) 9890 2927, E-mait: vic@audiotetex.com Brisbane Ph: (07) 38521312, Fax: (07) 32521237, E-mail: qtd@audiotetex.
