Detailed instructions for use are in the User's Guide.
[. . . ] 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. The unbalanced input features a parallel output and 0/20dB sensitivity switch. 12dB/octave Bass and Treble shelving equalization with up to 12dB of boost or cut at 100Hz and 10kHz can be applied to the output signal. [. . . ] (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
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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
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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. 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. [. . . ] LED status indicators shall be provided on the front panel to indicate power, stand-by mode, signal present at the output terminals, peak signals near clipping and an overload condition. The amplifier shall be a model UP4121 manufactured by Mackie Industrial.
UP4121
Electronic files for this product available at: www. mackieindustrial. com This Specification Sheet Quick-Start Manual UP4121. PDF UP4121QS. PDF
www. mackieindustrial. com
16220 Wood-Red Rd. NE, Woodinville, WA 98072 USA 888. 337. 7404, fax 425. 487. 4337, industrial@mackie. com
UK +44. 1268. 571. 212, fax +44. 1268. 570. 809, info@rcf-uk. com ITALY +39. 0522. 354. 111, fax +39. 0522. 926. 208, industrial@rcf. it FRANCE +33. 3. 8546. 9160, fax +33. 3. 8546. 9161, rcf. commercial@wanadoo. fr GERMANY +49. 2572. 96042. 0, fax +49. 2572. 96042. 10, industrial@mackie. de
Mackie Designs continually engages in research related to product improvement. [. . . ]