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(7) IEC MAINS CONNECTOR
This is a standard IEC power connector. An AC mains cord having the appropriate AC plug and ratings for 
the intended operating voltage is included in the carton.

U.S. DOMESTIC AC MAINS CORD

The mains cord supplied with the unit is a heavy-duty, 3-conductor type with a conventional 120 VAC plug 
with ground pin. It should be connected to an independent circuit capable of continuously supporting at 
least 15 amps. This is particularly critical for sustained high-power applications. If the outlet used does not 
have a ground pin, a suitable grounding adapter should be used and the third wire grounded properly.

Never break off the ground pin on any equipment. It is provided for your safety.

The use of extension cords should be avoided but, if necessary, always use a 3-wire type with at least a 
 #14 AWG wire size. The use of lighter wire will severely limit the power capability of this amplifiers. 
Always use a qualified electrician to install any new electrical equipment. To prevent the risk of shock or 
fire hazard, always be sure that the amplifier and all associated equipment is properly grounded.

NOTE: FOR UK ONLY.

If the colors of the wires in the mains lead of this unit do not correspond with the colored markings identifying 
the terminals in your plug, proceed as follows (1) The wire that is colored green and yellow must be 
connected to the terminal that is marked by the letter E, the earth symbol, colored green, or colored green 
and yellow. (2) The wire that is colored blue must be connected to the terminal that is marked with the 
letter N or the color black. (3) The wire that is colored brown must be connected to the terminal that is 
marked with the little L or the color red.

(8) BINDING POST OUTPUTS

Shockproof binding post speaker outputs are provided on the amplifier. For each channel, the outputs are in 
parallel and the speaker connection cables can be terminated with banana plugs or stripped wires for use in
the binding post terminals, or can be connected using the Speakon outputs (9). For sustained high-power 
applications, either outputs can be used, however, exercise care to assure the correct speaker phasing. 
The red binding posts are the signal outputs from each channel, and the black binding posts are chassis 
ground. The red binding post should be connected to the positive inputs of the associated loudspeakers. 
For BRIDGE mode operation, only the red binding posts are used and the associated loudspeaker load is 
connected between the two red posts.

WARNING:

 Regardless of what connections are used, the minimum parallel speaker load should always 

be limited to 2 ohms per channel or 4 ohms BRIDGE mode for any applications. Operation at loads of 4 ohms 
per channel, or 8 ohms BRIDGE mode, is more desirable for sustained operation applications because the 
amplifier will run much cooler at this loading. Operation above 4 ohms per channel and even open-circuit 
conditions can always be considered safe, but sustained operation at loads below 2 ohms could result in 
temporary amplifier shut down due to the thermal limit circuitry. 

BACK PANEL FEATURES

Summary of Contents for PTA3000

Page 1: ...PROFESSIONAL POWER AMPLIFIER OPERATING GUIDE PTA3000 ...

Page 2: ...ratus near water 6 Clean only with a dry cloth 7 Do not block any of the ventilation openings Install in accordance with manufacture s instructions 8 Do not install near any heat sources such as a radiator heat register stove or other apparatus including amplifiers that produce heat 9 Do not defeat the safety purpose of the polarized or grounding type plug A polarized plug has two blades with one ...

Page 3: ...7 Exposure to extremely high noise levels may cause permanent hearing loss Individuals vary considerably in susceptibility to noise induced hearing loss but nearly everyone will lose some hearing if exposed to sufficiently intense noise for a sufficient time The US Government s Occupational and Health Administration OSHA has specified the following permissible noise level exposures Sound Level dBA...

Page 4: ...out 1 4 jacks and activation switches for the LOW CUT filter and crossover 150Hz X OVER Channel output sections feature dual shock proof binding posts and four conductor Speakon connectors An additional four conductor Speakon connector allows BRIDGE mode output UNPACKING Inspect the amplifier during unpacking If any damage is found notify your dealer immediately Be sure to save the carton and all ...

Page 5: ...ture limits or if the mains circuit breaker trips both channel power LED will be dark indicating shutdown If the BRIDGE mode is selected the indicator on channel B will remain dark as a positive indication of this mode selection 3 SIGNAL ACTIVITY LEDS SIGNAL These indicators illuminate when the associated channel output signal level exceeds 1 V RMS 4 OVERLOAD LEDS CLIP These indicators illuminate ...

Page 6: ... colored green and yellow 2 The wire that is colored blue must be connected to the terminal that is marked with the letter N or the color black 3 The wire that is colored brown must be connected to the terminal that is marked with the little L or the color red 8 BINDING POST OUTPUTS Shockproof binding post speaker outputs are provided on the amplifier For each channel the outputs are in parallel a...

Page 7: ...e fans should be in low speed The fans should never stop unless the amplifier is switched off or the AC mains power source is interrupted 13 COMBO INPUT CONNECTOR The combo connector offers both female XLR and 1 4 phone jack balanced inputs for each channel The XLR is wired with pin 1 as ground pin 2 positive input and pin 3 negative input The 1 4 phone jack is a tip ring sleeve 3 conductor type w...

Page 8: ...mation 16 THRU LOW OUT JACKS As per previous crossover discussion this 1 4 jack supplies low frequency out signals from the activated crossover for patching to additional power amplifier inputs providing added flexibility in larger bi amped systems When the crossover function is not activated this jack converts to a THRU function where the output of the electronically balanced input circuitry is s...

Page 9: ... illuminated In any event action should be taken to correct the cause of the thermal shutdown If the amplifier is not severely overloaded or shorted and air flow is normal in and out of the amplifier then steps should be taken to provide a cooler environment for all the amplifiers As a general rule the cooler electronic equipment is operated the longer its useful service life In most low to medium...

Page 10: ...AMPLIFIER CONFIGURATIONS ...

Page 11: ...10 ...

Page 12: ...dge mode mono 8 Ohms EIA 1 kHz 1 THD HUM NOISE Stereo mode below rated output power 4 ohms DISTORTION SMPTE IM INPUT SENSITIVITY IMPEDANCE rated output power 4 ohms Balanced TRS 1 4 phone jack Balanced XLR pin 2 positive Overall system gain per channel DISTORTION THD typical value Stereo mode both channels driven 4 Ohms 20 Hz to 20 kHz 10dB below rated power 20 Hz to 2 kHz at full rated power FREQ...

Page 13: ...PyleAudio com 718 535 1800 718 236 2400 fax 1600 63rd Street Brooklyn NY 11204 ...

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