User manual MACKIE UP4121 DATASHEET

[. . . ] The second input is unbalanced, and terminated to a single RCA connector. A contact closure will give priority to the balanced input. Activation of the balanced input priority turns on 18Vdc (300mA) power at a barrier connector on the rear panel, which may be used to drive LEDs or relays. [. . . ] at 7kHz Physical Dimensions (HxWxD): Weight: Finish: Warranty 3 years, parts & labor one-time, no-fault repair policy 3. 46" x 17" x 12. 4" (88mm x 433mm x 315mm) 30. 5 lbs. (11. 4kg) Black painted or treated steel, white nomenclature UP4121 Noise: Equalization Output: Inputs: Audio Inputs Line Level, Balanced: 775mV, 100k, barrier connector Line Level, Unbalanced: 775mV, 50k or 80mV, 50k, RCA connector Audio Outputs Number of Channels: Impedance: Constant Voltage: Line Level: One 4 One each, 25V, 50V, 70V, 100V, barrier connectors Parallel to Unbalanced In, RCA connector 18Vdc (300mA) Dry contact closure Dry contact closure, barrier connectors Control Inputs & Outputs Outputs: Overload Indicator: Inputs: Priority Switch Input: Stand-by Switch Input: Controls Front Panel: Rear Panel: Power switch, master Volume, Treble shelving, Bass shelving Unbalanced input sensitivity switch, H-P Filter in/out switch, L-P Filter in/out switch, Mains Voltage Selector switch 115/230VAC (±5%), 50/60Hz, 450VA, DC (24V battery) 10A/Hr Power Supply Environment Maximum Ambient: 131°F (55°C), Non-precipitating humidity 2 O FoF46 PAGES S PAGE 3 UP 4121 - P. A. AMPLIFIER STD-BY OVERLOAD SIGNAL PEAK ON EQ VOLUME HIGH 4 2 3 4 6 2 1 9 0 10 8 7 6 5 2 0 UP4121 Power Amplifier O FoF46 PAGES S PAGE LOW 2 2 4 66 8 8 -10 +10 -10 +10 8 8 4 4 6 0 POWER + POWER INPUT 24V D. C. - D. C. FUSE POWER OUTPUTS POWER OUTPUTS INPUT COMMANDS 0 50V 70V 100V 0 4 25V PRIORITY GND BALANCED IN FILTER SERIAL NUMBER MANUFACTURING DATE STAND GND OVERL. UNBALANCED IN SENSITIVITY VOLTAGE SELECTOR RISK OF ELECTRIC SHOCK DO NOT OPEN CAUTION WARNING: AVIS: RISQUE DE CHOC ELECTRIQUE -- NE PAS OUVRIR REPLACE WITH THE SAME TYPE FUSE AND RATING. DISCONNECT SUPPLY CORD BEFORE CHANGING FUSE TO REDUCE THE RISK OF FIRE OR ELECTRIC SHOCK, DO NOT EXPOSE THIS EQUIPMENT TO RAIN OR MOISTURE. REFER SERVICING TO QUALIFIED PERSONNEL. UTILISE UN FUSIBLE DE RECHANGE DE MÊ ME TYPE. DEBRANCHER AVANT DE REMPLACER LE FUSIBLE LINE 50/60 Hz-115/230V CONCEIVED, DESIGNED, AND MANUFACTURED BY MACKIE INDUSTRIAL · MADE IN ITALY · PATENTS PENDING · COPYRIGHT ©1999 THE FOLLOWING ARE TRADEMARKS/REGISTERED TRADEMARKS OF MACKIE DESIGN INC. : "MACKIE" "MACKIE INDUSTRIAL" & THE "RUNNING MAN" FIGURE , , OFF ON 20dB 0dB AMPLIFIER UP4121 Power Amplifier Architects' and Engineers' Specifications The power amplifier shall have a nominal output power of at least 120W RMS. It shall operate on 115VAC or 230VAC at either 50Hz or 60Hz and have its source power supplied by a detachable IEC power cord. In addition, the unit shall be capable of being directly powered by a 24Vdc source such as storage batteries. It shall have a power switch on the front panel. The unit shall have a constant-impedance output to drive a 4 load at its rated output. It shall also have 25V, 50V, 70V and 100V constant-voltage outputs with like performance. The unit shall be capable of being remotely turned on from a stand-by mode with a contact closure. The amplifier shall have an active balanced input and an unbalanced input. The balanced input connection shall be made through barrier connectors. The unbalanced input shall have a sensitivity switch on the rear panel to select between a nominal input signal of 0dB or ­20dB. This input shall be parallel to an unbalanced output connector. [. . . ] New material, production methods, and design refinements are introduced into existing products without notice as a routine expression of that philosophy. For this reason, any current Mackie Industrial product may differ in some respect from its published description, but will always equal or exceed the original design specifications unless otherwise stated. and are registered trademarks of Mackie Designs Inc. [. . . ]