User manual PYLE PT910

[. . . ] PT-910 19" Rack Mount 1200 Watt Stereo Power Amplifier/Mixer w/70V Output Owners Manual www. pyleaudio. com Your new Pyle Pro PT-910 1200-Watt Stereo Power Amplifier gives you the versatility and power you need in a professional sound system. Its wide frequency response makes it suitable for amplifying music or vocal program material. It can be used in meeting halls, auditoriums, sports events, schools, live bands, or for paging systems. The PT-910 can produce up to 350 watts bridged output of clean, powerful sound with minimum distortion. TABLE OF CONTENTS 1 2 2 2 2 2 2 2 3 3 3 3 3 3 3 4 4 4 4 4 4 5 5 5 5 5 6 6 FEATURE AND CONTROLS INSTALLATION AND GUIDELINES INPUT CONNECTIONS Connecting Microphones Connecting a Turntable Connecting an Auxiliary Sound Source Connecting the MIX BUS Jack Connecting an Equalizer SPEAKER CONNNECTIONS Connecting Speakers Determining Total Speaker Impedance Preparing the Speaker Wires Connecting Two Speakers in Series Connecting Two Speakers in Parallel Unbridged Connection Bridged Connection Connecting The Speakers Without and With Transformers POWER CONNECTIONS OPERATIONS Monitoring the Sound Sources Listening Safely Using The Feedback Filter Using The Level Meter and Clipping Indicator Using Speaker A/B Replacing The Fuse TROUBLE SHOOTING AND CARING LIMITED WARRANTY SPECIFICATIONS Please read this manual thoroughly before you attempt to set up and use the amplifier. [. . . ] Preparing the speaker wires Finally, always use the shortest length of speaker wire possible of proper gauge. Usually, 18 gauge wire is adequate for length under 25 feet, while 16 gauge is used for greater length. To prepare the speaker wire, remove about 1/2 inch (12. 5mm) of insulation from the end of the speaker wire you are connecting to the amplifier. Then twist the exposed wire to secure all of the wire strands. Connecting Two Speakers in Series 1. Connect the right speaker's positive to the left speaker's negative terminal. 2. Connect the left speaker's positive to the speaker output jack's positive terminal. 3. Connect the right speaker's negative to the speaker output jack's negative terminal. Note: Determine the total speaker impedance of speakers you want to connect in series by adding up the individual impedance of all the connected speakers. If connecting two 4-ohm speakers in series, your total speaker impedance is 8 ohms. Connecting Two Speakers in Parallel 1. Connect the speaker's negative terminals together and then to the speaker output jack's negative terminal. 2. Connect the speaker's positive terminals together and then to the speaker output jack's positive terminal. Note: Determine the total speaker impedance of speakers you want to connect in parallel by dividing the impedance of one speaker by the number of speakers. If connecting two 8-ohm speakers in parallel, divide 8 (one speaker's impedance) by 2 (number of speakers). Your total speaker impedance is 4 ohms. Unbridged Connection Use this connection if you are connecting more than one speaker on the same channel or if you do not have highpower speakers. 1. Connect the speaker wires to the corresponding left and right speaker's positive (+) and negative (-) terminals. 2. Connect the other end of the left and right speaker's positive (+) and negative (-) wires to the amplifier's corresponding SPEAKER LEFT and SPEKAER RIGHT terminals for each channel. To connect speaker wires to the amplifier, turn the knob on the terminal counterclockwise until it stops, insert the bare wire inside the space between the knob and the amplifier, then turn the knob clockwise until it stops to secure it. 3. Make sure STEREO/MONO is set to STEREO. PYLE PRO PT-910 Amplifier Owners Manual - 3 Bridged Connection, Connecting The Speakers Without and With Transformers IMPORTANT: For a bridged connection, DO NOT connect any speaker wires to the BLACK SPEAKERS TERMINALS. Use only one set of connections when bridging. DO NOT use both Channels A and B simultaneously. DO NOT mix speakers with and without transformers simultaneously. NOTE: SPEAKERS RIGHT (+) on the amplifier is used as a negative (-) terminal for a bridged connection. Connecting The Speakers Without Transformers Use this connection if you have high power speakers that can handle a power output of 350 Watts. 1. Connect the speaker wires to the speaker's positive (+) and negative (-) terminals. [. . . ] 4. Insert the fuse into the fuse holder's socket, press the fuse holder back into the amplifier, then turn the fuse holder's cap clockwise to tighten it. TROUBLE SHOOTING AND CARING Troubling Shooting We do not expect you to have any problem with your amplifier. But if you do, these suggestions might help. No power The fuse might be blown Sound source of speakers not connected properly Amplifier's LEFT/RIGHT VOLUME, MIC 1, MIC 2, MIC 3, MIC 4/PHONO, CD/AUX controls set to minimum Sound source of speakers are not connected properly A microphone or cable might be faulty The speakers might wrong impedance Check the amplifier's fuse and replace it if necessary Check all connections Adjust the volume control to desired setting Check all connections Check all microphones and cables Make sure the speaker's wire are 18gauge(for wire length up to 7. 6mm) or 16-gauge (for length over 7. 6mm). For the best results, use the shortest length of speaker wire possible. Turn the amplifier off and left it cool. [. . . ]