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model
d2500.1
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2 © 2002 Directed Electronics, Inc
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CONGRATULATIONS Congratulations for choosing a Viper delight the mobile sound enthusiast with Audio power amplifier from Directed years of high-quality audio reproduction. Electronics, the industry leader in high Viper Audio power amplifiers come with quality automotive security and audio a two-year limited warranty if installed equipment since 1990. by an authorized Viper dealer. If not With the introduction of Viper Audio installed by an authorized dealer, Viper power amplifiers, Directed Elec
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LIMITED TWO-YEAR CONSUMER WARRANTY Directed Electronics, Inc. promises to the WARRANTY OF NON-INFRINGEMENT OF original purchaser, to replace this product INTELLECTUAL PROPERTY ARE EXPRESSLY should it prove to be defective in workman- EXCLUDED TO THE MAXIMUM EXTENT ship or material under normal use, for a ALLOWED BY LAW, AND DIRECTED period of two years from the date of NEITHER ASSUMES NOR AUTHORIZES purchase by the dealer as indicated by the ANY PERSON TO ASSUME FOR IT ANY date code marking of t
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FEATURES Super-efficient Class D PWM design Continuously variable 24 dB/ runs much cooler than conventional octave low-pass crossover. amps. Variable 20-50 Hz, 24 dB/octave High-speed MOSFET switching subsonic filter. power supply. Variable 12 dB bass EQ function. High-current complimentary MOSFET Variable phase adjustment. outputs stable into 2 ohm loads. Remote subwoofer level control Thermal, DC offset, reverse polarity, supplied. and short circuit protection with status LED. Variab
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INSTALLATION GUIDELINES 1. Please read this owner’s manual terminal. Use a fuse or circuit carefully before installing this ampli- breaker rated slightly more than the fier. fuse(s) of the amplifier. The gauge of power wire used should take into 2. Disconnect the battery ground account the total current draw of terminal prior to making any elec- the system, and the length of wire trical connections. used. IASCA and other auto sound competition organizations have 3. Check for any hazards or obst
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generated. For low impedance switching power supply, filtering the speaker applications or restricted power cable is not generally ventilation installations, an external required (remember that the amp cooling fan may be advisable. can’t deliver full output if the power supply is restricted). Proper 9. Battery and ground connections to grounding of the signal source is the vehicle should be made with mandatory for the amplifier to crimped ring terminals of the appro- reach its performance peak.
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FRONT PANEL CONNECTIONS R RC CA A IIn np pu ut t J Ja ac ck ks s - S Slla av ve e/ /M Ma as st te err S Sw wiit tc ch h 1. Accepts line level 4. - Controls whether the amplifier is a slave or outputs from head units or signal master when connected in the processors at voltages between Parallel Synced Gain combination. 150mV and 8 volts. (Refer to the Combined Amplifiers 2. R RC CA A S Sy yn nc c O Ou ut t J Ja ac ck k - This RCA jack section of this guide.) sends a synced, or in-phase, gain 5. R
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REAR PANEL CONNECTIONS 1. R Re em mo ot te e T Tu urrn n O On n - This terminal turns 5. G Grro ou un nd d - Connect these terminals on the amplifier when (+) 12 volt is directly to the sheet metal chassis applied to it. Connect it to the remote of the vehicle, using the shortest turn on lead of the head unit or signal wire necessary to make this source. If a (+) 12 volt remote turn connection. Always use wire of the on lead is not available, a Remote same gauge or larger than the Power Adapter
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FIGURE 2—AMPLIFIER CONNECTIONS d2500.1 REAR 1 3 4 5 2 10 © 2002 Directed Electronics, Inc
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TOP PANEL CONTROLS 1. IIn np pu ut t G Ga aiin n A Ad djju us st tm me en nt t - Controls 4. S Su ub b P Ph ha as se e A Ad djju us st tm me en nt t - Controls the amplifier’s sensitivity and is the phase of the subwoofer output used to match the input level of the from 0 to 180 degrees. amplifier to the output level of the 5. S Su ub bs so on niic c F Frre eq qu ue en nc cy y A Ad djju us st tm me en nt t - signal source. Adjusts the cutoff point for 2. C Crro os ss so ov ve err F Frre eq qu ue
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TOP PANEL FEATURES Control Panel Cover 2. Apply two of the precut pieces of adhesive tape to the corners of the The amplifier’s gain and filter controls window that don't have tape. Make are mounted under the elliptical control sure to apply the tape to the side panel cover. Magnets hold the cover that makes contact with the cover. snugly and allow easy access. Save the other two precut pieces of T To o iin ns st ta allll t th he e c co ov ve err - Place the tape for future use. straight end of
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SPEAKER WIRING DIAGRAMS Single subwoofer connection (bottom view) Two subwoofer connection (bottom view) N NO OT TE E:: The dual + and -- subout terminals of the d2500.1 are paralleled internally and the combined load impedance should be taken into consideration when connecting multiple subwoofers. 13 © 2002 Directed Electronics, Inc
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COMBINING AMPLIFIERS The Viper d2500.1 subwoofer amplifier phase audio pre-amp signal from the has the capability of connecting two or master amplifier. Wiring connections to more d2500.1 amplifiers in a the amplifier subwoofer outputs in this combination should be standard in-phase master/slave combination for increased power with accurate level matching. It is configurations, creating a parallel called the Parallel Synced Gain combina- speaker connection. (Refer to Parallel tion. Synced Gain s
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MULTIPLE AMPLIFIER COMBINATIONS The Viper d2500.1 subwoofer ampli- be accomplished by using one or more Directed Remote Sub Level fiers can also be used in multiples of the cable splitters. Standard single-to- Parallel Synced Gain combination double phone line splitters and allowing for unlimited expansion to a accessories from a local electronics systems subwoofer section. To use store can also be used. multiples of the Parallel Synced Gain combination the following directions For systems with
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PARALLEL SYNCED GAIN CONNECTIONS/SETTINGS 1. IIn np pu ut t S Siig gn na all - Connect these RCA 4. S Siig gn na all C Co on nn ne ec ct tiio on n - Connect an RCA jacks as described in the Front Panel cable between the SYNC OUT RCA Connection section of this guide. jack of the master amplifier and the SLAVE IN RCA jack of the slave S Slla av ve e/ /M Ma as st te err S Sw wiit tc ch h 2. amplifier as shown in Figure 5. Set the slave/master switch 5. S Su ub bw wo oo offe err S Sp pe ea ak ke er
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FIGURE 5—PARALLEL SYNC GAINED d2500.1 Master 2 1
3 Do Not Use 4 Slave Do Not Use
Do Not Use Do Not Use 2 Subwoofer Wiring (bottom view) 5 N NO OT TE E:: The dual + and -- subout terminals of the d2500.1 are paralleled internally and the combined load impedance should be taken into consideration when connecting multiple subwoofers. 17 © 2002 Directed Electronics, Inc
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CROSSOVER SETTINGS AND GAIN ADJUSTMENT Your Viper Audio power amplifier needs to be adjusted carefully to achieve maximum performance. These are some guidelines to follow when fine-tuning the amplifier. Because this amplifier is only designed for subwoofer applications, the low-pass crossover is active at all times. The crossover point is adjustable to allow more precise system operation. Try and keep the setting low enough to prevent image smearing (you should not be able to hear male voices
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SPECIFICATIONS Viper model d2500.1 1500 watts RMS continuous power driven into 4 ohms from 20 to 250 0.8% THD Hz @ 14.4 VDC at rated power/load. RMS continuous power driven into 2 ohms from 20 to 250 2500 watts 1.0% THD Hz @ 14.4 VDC at rated power/load. Dynamic power rating (IHF-202 Standard) minimum load. 2700 watts Signal-to-Noise Ratio Greater than 80 dB Frequency Response 20-250 Hz +0, -1 dB Damping Factor 50 (typical) Crossover Low-pass 24 dB/octave, variable from 30 to 250 Hz Subsonic
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The company behind this system is Directed Electronics, Inc. Since its inception, Directed has had one purpose, to provide customers with the finest vehicle security, car stereo products, rear seat entertainment, and accessories available. The recipient of more than 20 patents in the field of advanced electronic Directed Electronics, Inc. technology, Directed is ISO 9001 registered. Vista, California 92083 Directed® is committed to delivering world-class quality products and services that excit
