User manual FENDER M12 MIXER

[. . . ] Employing a unique design, the M12 MIXER provides a powerful tonal control system which fights feedback while optimizing sound. This design is comprised of a sweepable high pass filter, a sweepable low pass filter and three advanced narrow band notch filters. This manual is arranged into four sections: A description of the M12 MIXER panel features. A section on basic connections and wiring. [. . . ] When this knob is fully in its counter clockwise position, all input signals above 12Hz are allowed to pass. When it is positioned fully clockwise, only frequencies above 150 Hz are permitted to enter the power amplifier. If the performers want crisper sounding sounding monitors slowly rotate this control clockwise until they are pleased with the sound. POWER LED INDICATOR - LED is illuminated when the monitor amplifier is turned on, and the AC mains voltage is present. If the indicator does not light when the power switch is turned on (and does not trip the circuit breaker), check the AC power supply and fuse. DELTACOMPTM SWITCH - This switch activates the internal compressor circuit. Peak clipping is minimized when the compressor circuit is active. This will also "clamp" feedback, helping protect your monitor speakers. During normal operation, keep this switch engaged. DO NOT BLOCK FAN OPENING TYPE: PR 308 OUTPUTS SERIAL NUMBER PATCH POINT RETURN SEND BALANCED INPUTS PARALLEL SPKR. JACKS 500W 900W FUSE F10A 250V CAUTION: CHASSIS SURFACE HOT WARNING: TO REDUCE THE RISK OF FIRE OR ELECTRIC SHOCK , DO NOT EXPOSE THIS EQUIPMENT TO RAIN OR MOISTURE 2 MIN TOTAL CLASS 2 WIRING UTILISER UN FUSIBLE DE RECHANGE DE MEME TYPE ET CALIBRE ATTENTION: TO REDUCE THE RISK OF FIRE, REPLACE FUSE WITH SAME TYPE AND RATING CAUTION: AVIS: RISQUE DE CHOC ELECTRIQUE NE PAS OUVRIR ATTENTION: SUPERFICIE DE CHASSIS CHAUDE J K L L MN O O H. PEAK LED INDICATOR - The red Peak LED Indicator illuminates when the output voltage of the amplifier reaches clipping (maximum output voltage). Larger diameter (small gauge number) wire is expensive and long cables made from it are heavy. Rather than running long speaker cables, it is better to locate power amplifiers near speakers and run a line-level signal cable over the long distance to the amplifier. This approach eliminates most of the signal loss due to speaker cable resistance so the speakers are fed all of the amplifier's power without the need for heavy cables. In cases where speakers and power amplifiers are located far away from the signal source, "balanced line" cables are a wise choice. The use of stranded wire is highly recommended since it is flexible and less prone to metal fatigue breakage. If an end is nicked while insulation is being stripped for connection, only one or two strands will break and not the entire wire. NEVER use coiled cords for speaker hookup, even in an emergency. Coiled guitar-type cords usually have higher internal resistance than the speakers themselves. This is due to the light-gauge wire used to keep the coil cords flexible. Unfortunately, these types of cord prevent most of the power from reaching the speakers. In high power operation, a coil cord can melt causing a fire hazard and possible damage to the amplifier. [. . . ] Slide the control level up until feedback or ringing is heard, then move down until the feedback or ringing stops. Step 8 may need to be performed more than once if several feedback problems occur simultaneously. To reduce the chance of unwanted noise in your system, keep all patch cables and input signal cables away from all AC power cords, lighting cables and speaker wires. Always use shielded cables for all low level (input and patch point) connections to this unit. [. . . ]