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         Thanks for choose our series amplifier. The amplifier features a two-way crossover and
sub-sonic (low-cut) filter for each channel. Crossover frequencies are fixed at 150 Hz, allowing
subwoofers to be driven at extremely high sound pressure levels, and the filters cut at 40 Hz to 
prevent low-end rumble. Using proven technology gained through years of amplifier design, this 
unit takes advantage of rugged TO-3P output devices mounted on massive aluminum extrusions 
and dissipates heat via an extremely quiet and effective two-speed fan. The  amplifiers employ 
mammoth toroidal power transformers and offer impressive specifications and features not found 
on similarly priced competitive units. This amp is designed to drive a 2-Ohm load per channel, 
thus achieving awesome performance levels into 4 Ohms in BRIDGE mode. The amplifiers are 
ruggedly constructed, rack-mountable pieces of gear with superb patching capability, allowing 
superior flexibility in application. Front panel features include calibrated, detented gain (dB) 
controls and LED indicators for power, signal presence (SIG), clip and fault, as well as a rocker 
mains POWER switch. The back panel contains an IEC connector for the mains power cord, 
a mains circuit breaker with reset, and 2 critical cooling fan opening. This opening should have an 
adequate supply of cool air and should never be blocked or restricted. Also on the back panel are 
the input and output sections, including an input barrier strip for permanent installation. Each 
channel inputs section includes a combo XLR/ 1/4"phone jack connector. THRU/LOW out and 
HIGH 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 packing materials. Should you ever need to ship the unit back 
to Sixstar DJ, one of its service centers, or the dealer: use only the original factory packing.

INSTALLATION

The professional power amplifiers are design for durability in commercial installations and 
provide the quality performance required in studio and home applications. They are two-rack-
space units of 16" (406mm) depth designed to mount in a standard 19" rack. Rear mounting 
ears are provided for additional support. The minimum rack depth required from the mounting 
surface is 17" (432mm) to allow adequate connector clearance.

BASIC SETUP

Rack mount the amplifier in the location where it is to be used, remembering to allow for 
adequate access and cooling space. Make all the connections to the proper INPUT connectors 
on the desired channel. Select the proper mode configuration (STEREO or BRIDGE). Connect 
speakers to the proper OUTPUT connectors, reviewing carefully the impedance and phase 
considerations. With the POWER switch OFF, connect the IEC cord (7) to the amplifier and then 
to a suitable electrical outlet to allow proper current draw. With both channel gain (dB) controls 
at their fully counterclockwise settings, turn the POWER switch to ON, and slowly raise the gain 
controls to desired settings. Please carefully review this manual. It covers all this information in 
greater detail.

SERIES PROFESSIONAL POWER AMPLIFIER

Содержание PTA3000

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

Страница 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 ...

Страница 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...

Страница 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 ...

Страница 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 ...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 10: ...AMPLIFIER CONFIGURATIONS ...

Страница 11: ...10 ...

Страница 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...

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

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