Related Manuals for Park Audio II DF series
Summary of Contents for Park Audio II DF series
- Page 1 DF series DF1 404 PROFESSIONAL FOUR CHANNEL CLASS D POWER AMPLIFIER Owner’s Manual...
- Page 2 ACCESSORIES 1. Power Cord 1pc. 2. Owner’s Manual 1pc. 3. Warranty 1pc.
- Page 3 CAUTION RISK OF ELECTRIC SHOCK DO NOT OPEN AVIS RISQUE DE CHOC ELECTRIQUE NE PAS OUVRIR CAUTION! The amplifier runs on 230V AC voltage. Removing the cover will expose you to a potentially dangerous voltage! Do not use the unit if the electrical power cord is frayed or broken.
- Page 4 GENERAL The DF1404 professional class D four-channel amplifier is designed for high MkII fidelity amplification of sound signals within a professional sound reproduction system. The amplifier can be operated in a four-channel mode, three-channel mode (one pair of channels bridged) or two-channel mode (both pairs of channels bridged). To ensure the most advantageous and faultless operation of the amplifier, please, read this Manual before use.
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Page 5: Design Features
DESIGN FEATURES Physical Design The amplifier is enclosed in a metal (steel) case of 88 mm (2U) height. The amplifier is designed to be standard rack-mounted (RACK 19"). Power Supply Unit All four channel of the amplifier share the same pulse power supply unit. Cooling System The amplifier features a forced cooling system which is common for all four channels. - Page 6 When it is necessary to achieve a linear frequency response to drive full-range loudspeakers, generally used in studios or in cinema theatres, the input filter can be disabled (bypassed for each channel individually) with the slide switches located on the amplifier rear panel.
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Page 7: Functional Features
FUNCTIONAL FEATURES Overload and Short-Circuit Protection Individual per each channel. This protective system becomes active in case of short-circuited output or overload, caused by reduced load impedance. It disables the output signal of the respective channel for 0.5 second and then the amplifier gradually resumes its delivery. -
Page 9: Front Panel
FRONT PANEL 8 10 THERMAL – overheating alarm LED. Brightness depends on the temperature of the heat sink (See: Thermal Protection). POWER LED. LED goes off when the DC output protection system activated. CLIP – clip LEDs for Channels 1, 2, 3 and 4, respectively. They indicate: –... -
Page 10: Rear Panel
THRU THRU THRU THRU Serial No Use INPUT CH 3 Use INPUT CH 3 for MONO for MONO Park Audio II, Ltd M ade i n U kraine & BRIDGE MODE & BRIDGE MODE CROSSOVER CROSSOVER CROSSOVER CROSSOVER MAINS IN... - Page 11 OUTPUT – SpeakON output connectors for channels 1, 2, 3, 4, respectively, 12 16 19 22 used to link up to loudspeakers. To link up loudspeakers to channels 1, 2 and 3, 4 functioning in the BRIDGE mode, use outputs for channels 1 and 3, respectively. In addition, channel 1 output connector is interlinked with channel 2 output, while channel 3 output connector with channel 4 output, thus making it possible to use a single NL4FC connector (wired accordingly) to connect...
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Page 12: Cable Requirements
CABLE REQUIREMENTS Input Cables Make sure to use only shielded cables whether balanced or unbalanced. Shielding, when properly grounded, protects a signal against external electrical interference. As a rule, unbalanced lines over 3 meters long are not acceptable. Greater distances require a balanced cable. Avoid placing input cables close to power cords or power transformers. -
Page 13: Input And Output Connectors
INPUT AND OUTPUT CONNECTORS Input Connectors Use XLR (male) connectors to connect to the amplifier inputs and XLR (female) connectors to line outputs. See the wiring on the figures below. XLR (female) XLR (male) Cold « – » Cold « – » Shield (Ground) Hot «... -
Page 14: Rack-Mounting Requirements
RACK-MOUNTING REQUIREMENTS The amplifier is designed to fit a standard 19” rack. While mounting, make sure to provide unhindered air access to the front and rear sides of the rack. Fan direction is from front to back. It is not necessary to leave empty space above or below the amplifier. -
Page 15: Operating Modes
THRU THRU THRU THRU Serial No Use INPUT CH 3 Use INPUT CH 3 for MONO for MONO Park Audio II, Ltd M ade i n U kraine & BRIDGE MODE & BRIDGE MODE CROSSOVER CROSSOVER CROSSOVER CROSSOVER MAINS IN... - Page 16 THRU THRU THRU THRU Serial No Use INPUT CH 3 Use INPUT CH 3 for MONO for MONO Park Audio II, Ltd M ade i n U kraine & BRIDGE MODE & BRIDGE MODE CROSSOVER CROSSOVER CROSSOVER CROSSOVER MAINS IN...
- Page 17 Serial No THRU THRU THRU THRU Use INPUT CH 3 Use INPUT CH 3 for MONO for MONO Park Audio II, Ltd M ade i n U kraine & BRIDGE MODE & BRIDGE MODE CROSSOVER CROSSOVER CROSSOVER CROSSOVER MAINS IN...
- Page 18 THRU THRU THRU THRU Serial No Use INPUT CH 3 Use INPUT CH 3 for MONO for MONO Park Audio II, Ltd M ade i n U kraine & BRIDGE MODE & BRIDGE MODE CROSSOVER CROSSOVER CROSSOVER CROSSOVER MAINS IN...
- Page 19 THRU THRU THRU THRU Serial No Use INPUT CH 3 Use INPUT CH 3 for MONO for MONO Park Audio II, Ltd M ade i n U kraine & BRIDGE MODE & BRIDGE MODE CROSSOVER CROSSOVER CROSSOVER CROSSOVER MAINS IN...
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Page 20: Troubleshooting
TROUBLESHOOTING No Sound Signal on the Amplifier’s Output POWER LED is OFF: – damaged power cable; – no power; – DC protection mode. But for POWER LED all other LEDs are OFF: – no input signal; – input level attenuators are set to minimum position. SIGNAL and CLIP LEDs are occasionally blinking: –... -
Page 21: Specifications
SPECIFICATIONS Output Power: 4 x 350 / 200 W (4 / 8 Ohm, ~230V) 2 x 700 W (8 Ohm, ~230 V)* Peak Output Power: 4 x 420 / 210 W (4 / 8 Ohm, 10ms, ~230 V) 2 x 840 W (8 Ohm, 10ms, ~230 V)* Frequency Response**: 20 Hz –... - Page 22 DIMENSIONS 445 max...
- Page 23 PARK AUDIO II, Ltd. Vinnytsia, Ukraine www.parkaudio.ua e-mail: park@parkaudio.ua...