User manual ROLLS REQ315

[. . . ] In the absence of such purchase receipt, the warranty period shall be one (1) year from the date of manufacture. This warranty shall be invalid if the product is damaged as a result of defacement, misuse, abuse, neglect, accident, destruction or alteration of the serial number, improper electrical voltages or currents, repair, alteration or maintenance by any person or party other than our own service facility or an authorized Service Center, or any use violative of instructions furnished by us. This one-year warranty is in lieu of all expressed warranties, obligations or liabilities. [. . . ] Please register online at www. rolls. com, or complete the Warranty Registration Card and return it to the factory. SPECIFICATIONS SPECIFICATIONS Equalizer: Bands Accuracy Range Inputs: Type 2x15 From 20Hz to 20kHz 3%Center Frequency +/-6dB or +/-12dB (Switch Selectable) Maximum Level Outputs: Active Balanced/Unbalanced Connectors 3-Pin XLR, 1/4 " TRS Impedance 12k Ohms +22dB (Balanced) +15dB (Unbalanced) Type Connectors Impedance Maximum Level RFI Filters Passive Bypass Switches Overload LED Threshold Low Cut Filter Frequency response THD + Noise Signal-to-Noise Ratio Equivalent Input Noise Dimensions: Relay Balanced 3-Pin XLR, 1/4"TRS 600 Ohms TABLE OF CONTENTS 1. Introduction Inspection Table of Contents 2. Specifications Back Cover: Warranty +22dB (Balanced) +15dB (Unbalanced) Yes Yes 3dB (Below Clipping) 10-250Hz, 12dB/Oct 20-20kHz +0. 5dB . 01%(20hZ-40kHz) 110dB below Max. level (A weighting) -95dB (20kHz Noise Bandwidth) 3. 5"H x 19"W x 8. 5"D 1 6 SCHEMATIC Front Panel Controls 1. Power Switch: To turn the equalizer ON or OFF , press the upper or lower portion of this button. CAUTION: Always turn on your equalizer BEFORE your power amplifiers are turned on , and always turn off your equalizer AFTER your power amplifiers have been turned off. 2. Filter `Level Controls: Each of these sliders controls the output level of each of the 15 bandpass filters. Center detent position is grounded for guaranteed flat response. 3. Filter Range Switch & Indicators: The gain range of the filter sliders is switchable (as a group) from +/-6dB to +/12dB For maximum boost/cut capability. At 6dB the green LED will illuminate and at 12dB the yellow LED will illuminate. 4. Bypass Switch & Indicator: When the red LED is illuminated, this indicates that the unit or channel is in the bypass mode. Signal is routed directly from the input to the output without passing through any circuit (often referred to as "hard-wire bypass"). Use this switch to compare equalized and unequalized material, or to bypass the EQ section in the event of power loss or unit failure. 5. Overload Indicator: This red LED illuminates if any section of the equalizer is within 5dB of clipping. Occasional blinking of this LED is acceptable, but if it remains on more than intermittently you should turn down either the equalizer's level controls or reduce the output level of the preceding compon ent to avoid andible distortion. 6. Low-Cut Frequency Control: To cut down unwanted signal, this control determines the roll-off frequencyof the High-Pass Filter (HPF) in the instrument. The roll-off frequency cans de adjusted from 10Hz to 250Hz by turning this knob. Because of its high roll-off slope, the HPF can be efficiently used to cut down the "HUM" noise from preceding instruments, or to prevent the low-frequency resonance while the speakers are installed in an enclosed acoustic environment. 7. Level Control: This controls the level of signal coming into the instrument. [. . . ] CAUTION: DO NOT REMOVE THE CENTER GROUNDING PIN. Fuse Holder: This fuse holder contains an AC primary fuse. This fuse should be replaced by the same type fuse when this is blown out. [. . . ]