User manual FENDER LEAD I

[. . . ] LEVEL TO PHANTOM BUSS MAIN MICROPHONE + 21 3 CHANNEL EQ _ TO MAIN BUSS LINE TO EFFECTS/ REVERB BUSS HIGH MID LOW EFF. /REV. Signal path typical for each channel MON. + _ TO MONITOR BUSS 1. The SR series integrated mixer/amplifiers have been designed for easy setup and simple but versatile operation. Requiring only the addition of microphones and speakers, the SR powered mixers are self-contained sound reinforcement systems, with features and performance generally found only in units costing much more. Each input preamp channel provides a balanced XLR MICROPHONE input with switchable phantom power for condenser microphones, a 1/4'' phone jack LINE input, MAIN level control, LOW, MID, and HIGH frequency tone controls, MON. [. . . ] The signal level present at this output is determined by the MONITOR MASTER control. Signals present on the Effects/Reverb buss are mixed in the Effects/Reverb summing amplifier. The overall level at this output is determined by the master mix section EFF. /REV. This output may be used to drive external effects (echo units, phase shifters, flangers, digital delays, etc. ). The return signal from the effect may be patched into the mixer through the AUX. Use of a preamp channel as a return gives you the ability to shape the frequency response of the signal; however, care must be taken to insure that the EFF. /REV. control on that channel is turned all the way down - otherwise a feedback loop will exist which could cause oscillation and possible damage to speakers. Care must be taken to insure that the amplitude of the return signal is not too great for the preamp channel input. The Digital Reverb and Effects processer can be defeated by inserting an optional footswitch into the REVERB FOOTSWITCH jack. OUTPUT jack; inserting a plug into this jack does not interrupt the normal signal path. The jack is useful for patching more power amplifiers into the system, for post-equalizer recording and for inserting signal processing equipment (limiters, parametric equalizers, etc. ) between the equalizer and the power amplifier (see Section 4-5). In general, extreme settings cause the sound to be unnatural and should be avoided. On the SR mixers, the 63 Hz control may be set initially 3 to 6 dB below the center position, since excessive low frequencies rob power from the rest of the system and low-end feedback can damage loudspeakers. Acoustic feedback in a sound system is the result of coupling between the speakers and microphones. The microphones will always pick up a certain amount of signal from the speakers; how much they pick up depends on the room acoustics, the frequency response of the microphones and speakers, and the mic and speaker placement. If the received signal is amplified enough (in the mixer and power amplifier), the speakers will continue to produce the signal, and the characteristic howl of acoustic feedback will begin. This feedback will occur at the frequency which receives the largest amount of gain from the sound system (including the room). If the signal can be attenuated at that frequency, more gain can be added to the rest of the signal frequencies before feedback occurs. Set up your entire sound system the way it will be used, including all auxiliary equipment, and adjust it the way you would normally use it. If feedback occurs during setup, reduce the gain of the mixer with the MAIN and MONITOR level controls. Follow the procedure outlined in the paragraphs below, first for the main system and then for the monitors (assuming you are using an equalizer in your monitor system, which is highly recommended). Set the controls on the GRAPHIC EQUALIZER to the "flat" position, indicated as "0 dB" on the panel. [. . . ] Load Impedance: Distortion at 520W: Input Sensitivity: Input Impedance: DELTACOMPTM Range: PRE-AMPLIFIER SECTION: LOW-Z Input Impedance: HI-Z Input Impedance: HI-Z Input Sensitivity for 520W: (MAIN MASTER and Channel MAIN at maximum, all tone controls and GEQ at "0" detent, power amp at 520W, 4 ). Channel Tone Controls: 1. 82k 18. 2k 55mV RMS 520W RMS @ 2 350W RMS @ 4 2 Less than . 2% @ 1kHz into 2 1. 28V RMS 22k 20dB LOW MID HIGH +/­ 15 dB at 100 Hz +/­ 15 dB at 750 Hz +/­ 15 dB at 10 kHz Graphic Equalizer: PHYSICAL SPECIFICATIONS: Height: Width: Depth: Weight: SR6520PD 10-7/16 Inches 23-5/8 Inches 12 Inches 40. 0 lbs. +/­ 12dB at 63, 125, 250, 500, 1k, 2k, 4k, 8k and 16 kHz. ( 26. 5 cm ) ( 60. 0 cm ) ( 30. 5 cm ) ( 18. 2 kg ) Height: Width: Depth: Weight: SR8520PD 10-7/16 Inches 27-5/8 Inches 12 Inches 42. 0 lbs. ( 26. 5 cm ) ( 70. 2 cm ) ( 30. 5 cm ) ( 19. 1 kg ) WARNING: NO USER SERVICEABLE PARTS INSIDE. THIS EQUIPMENT MUST BE EARTH GROUNDED. FRONT PANEL CONTROLS CHANNEL CONTROLS SR6520PD DSP POWERED MIXER 500 +dB 12 9 6 3 0 3 6 1K 2K 4K 8K 16K 2-2-3 2-3-7 63 +dB 12 9 125 250 DELTACOMP TM POWER 0 0 MAX. EFF. /REV. OFF ON ELECTRONICS 2-3-11 2-2-2 PHANTOM POWER 3 0 6 -15 +15 HIGH DIGITAL REVERB and EFFECTS 1-SHORT 2 3 2-3-10 2-3-9 3 6 2-2-2 OFF ON -dB 12 9 -15 +15 MID 4 REVERB / 5 DELAY TIME 6 7 8-LONG DEFEAT REVERB REGENERATION 2-3-8 2-3-4 2-3-6 2-2-2 2-3-3 0 0 GRAPHIC EQUALIZER DEFEAT MULTI-TAP DELAY 9 TRIPLE HIT DELAY 12 DOUBLE HIT DELAY -dB TAPE ECHO DELAY + REVERB -15 +15 LOW 2-2-4 MAX. 0 0 MAX. 0 0 MAX. AUX. [. . . ]