DB DRIVE 10″ Active Subwoofer WDX-AS10 Instruction Manual

DB DRIVE 10″ Active Subwoofer WDX-AS10 Instruction Manual

Introduction

Congratulations on your purchase of a DB Drive state-of-the-art subwoofer. Your selection of a DB Drive car audio product indicates a true appreciation of fine musical reproduction. Whether adding to an existing system or including your DB Drive subwoofer in a new system, you are certain to notice immediate performance benefits.

Keep Your Sales Receipt

Take this time to attach your sales receipt to the manual and put in a safe place. In case of any unforseen reason this product may need warranty service, your receipt will be necessary to establish purchase date.

Recommendation

A power subwoofer’s performance is only as good as its installation. Proper installation will maxi-mize the system’s overall performance. It is recommended that you have our product installed by an authorized DB Drive retailer. However, if you decide to install it yourself, please carefully read through this manual and take your time to do a quality installation.

IMPORTANT!

Before making any connections, disconnect the vehicle’s battery until the installation is completed to avoid possible damage to the electrical system.

WARNING!

Exposure to high power sound system can cause hearing loss or damage. Listening to your system at loud levels while driving will impair your ability to hear traffic sounds and emergency vehicles. Use common sense when listening to your system. Serial______________________________Model_____________________________

PANEL CONTROL AND FEATURES

• A. POWER STATUS LEDThis bi-color LED glows green when power is on and no problems are present. If one of the protection circuits comes on, it will change to red.
• B. PHASE SHIFTUse this switch to help compensate for time alignment problems in the system. Such problems usually result from having the subwoofer at a different distance from the listener than the other speakers in the system.
• C. AUTO POWERON The AUTO POWER ON(ON/OFF) is for high level (speaker-level) connections. When the switch is in the “ON” position, the subwoofer AUTO POWER ON when there is signal input. If the amplifier detected no signal input, the amplifier will auto turn off. If you prefer to use the remote turn on/off connection, the switch is in the OFF position.Note: Please connect the remote terminal to the remote output of head unit as Fig.4. When you hear the unit turn ON/OFF POP noise from the subwoofer.
• D. LOW PASS FILTERThis control permits you define the frequency range you want the subwoofer amplifier to receive. The subwoofer will reproduce all sound BELOW the frequency you set.
• E. BASS BOOSTThe BASS BOOST feature will increase the sound level in the bass frequencies.
• F. INPUT GAIN CONTROLAfter you have installed your system, turn this control to minimum.Turn the head unit on (and the subwoofer will turn on via the remote connection). Turn the head unit volume to about 2/3 full level.Slowly turn up the subwoofer input gain control until you hear a small amount of distortion. Then reduce the level until the distortion is completely gone. Level the control at this setting.
• G. REMOTE LEVEL CONTROL PORTAttach the included remote level control to control the volume level of the subwooer independently.
• H. HIGH LEVEL(speaker level) INPUTS If your head unit does not have RCA outputs you can use the speaker outputs for the audio source for the subwoofer. Use the supplied cable and wire harness and connect the outputs properly as shown in the connection diagram in this manual.
• I. LOW LEVEL RCA INPUTSLow level inputs are the recommended way to introduce the audio signal to the subwoofer if RCA outputs are present on your head unit or other signal source (such as a sound processor).
• J. FUSEDo not use a fuse with a different value and NEVER replace the fuse with a wire or coin.
• K. POWER INPUT TERMINAL

Low Level Input Wiring

Low-level (RCA) input wiring is preferred for best audio performance. Most trunk or hatchback installations will require a 15-20 feet RCA cable, while pickup trucks and under-seat installations will require a 6-12 feet RCA cable. Always use a high quality cable.NOTE: Do not connect BOTH the high level and low level inputs from your receiver to your amplifier at the same time!Fig.1

High Level Input Wiring

The high level input(s) should only be used when your receiver lacks RCA outputs. If the RCA outputs are not present, connect the speaker outputs from the receiver to the high level input connector of the amplifier. Be sure to observe polarity to avoid audio phase problems.NOTE: Do not connect BOTH the high level and low level inputs from your receiver to your amplifier at the same time!

Power Connections

Connect the ground terminal to the closest point on the chassis of the vehicle. Keep this ground wire to less than 39″ (100 cm) in length. Use at least an 8 gauge (or heavier) wire.

Connect the remote terminal to the remote output of head unit using 16 gauge ( or heavier ) wire.

Connect an empty fuse holder within 18″ (45 cm) of the car battery, and run at least an 8 gauge (or heavier) cable from this fuse to the amplifier location. Then connect the fuse holder to the “BATT+” (+12V) connection on the subwoofer rear panel.

Fig.3Note: In this connection, the AUTO Turn OFF switch is in the ON position.

Fig.4Note: In this connection, the AUTO Turn ON switch is in the OFF position.

Remote Level Control Connection

Fig.5

Specifications

MODEL: WDX-AS10

• Dynamic power: 900W
• RMS power: 250W
• THD: <0.4%
• Signal-to-noise ratio: >90dB
• Frequency response: 20Hz – 150Hz
• Input sensitivity, high level: 1.0-9.0V
• Input sensitivity, low level: 0.1-6V
• Low Pass Filter: 50Hz – 150Hz
• Bass Boost: 0 to + 18dB
• Subsonic Filter: 20Hz
• Fuse rating: 25A
• Subwoofer: 10inch,4ohm
• Dimensions: (L x W x H) mm 13.74 in x 9.72 in x 2.79 in (349mm x 247mm x 71mm)

All specifications subject to change without notice.

Troubleshooting

If you experience operation or performance problems with this product, compare your installation with the electrical wiring diagram on the previous pages. If problems persist, read the following troubleshooting tips which may help eliminate the problems.

Symptom	Possible Remdy
Amplifier will not power up.	Check to make sure you have a good ground connection.Check that the Remote Input (Turn-On) has 12 Volts.Check that there is battery power on the (+) terminal.Check that there is at least 12v.Check all fuse, replace if necessary.Make sure that the Protection LED is not illuminated. If it is lit, shut off the amplifier briefly, and then repower it.
Protection LED comes on when amplifier is powered up	Check for short circuits on speaker leads.Turn down the volume control on the head unit to prevent overdriving. Remote speaker leads, and reset the amplifier. If the Protection LED still comes on, then the amplifier is faulty and needs servicing.
No output.	Check that all fuses are OK.Check that unit is properly grounded.Check that the Remote Input (Turn-On) has at least 5VDC.Check that the RCA audio cables are plugged into the proper inputs. Check all speaker wiring.
Low output.	Reset the Level Control.Check the Crossover Control settings.
High hiss in the sound.	Disconnect all RCA inputs to the power sub’s control panel. If the hiss disappears, then plug in the component driving the amplifier and unplug its inputs. If the hiss disappears at this point, go on until the faulty/noisy component is found.It is best to set the amplifier’s input level control as low as possible. The best subjective signal-to-noise ratio is achieved in this manner. Try to set the head unit as high as possible (without distortion) and the amp input level as low as possible.
Squealing noise is present.	Check for improperly grounded RCA interconnects.
Distorted sound.	Check that the Input Level Control is set to match the signal level of the head unit. Always try to set the Input Level as low possible.Check that all crossover frequencies are properly set.Check for short circuits on the speaker leads.
Amplifier gets very hot.	Check that the minimum speaker impedance for the amp model is correct. Check that there is good air circulation around the amp. In some applications, it may be necessary to add and external cooling fan.
Engine noise (static type)	This is usually caused by poor quality RCA cables, which can pick up radiated noise. Use only the best quality cables, and route them away from power cables.
Engine noise,(alternator whine)	Check that the RCA grounds are not shorted to the vehicle chassis Check that the head unit is properly grounded.

LIMITED WARRANTY

DB Drive” warrants any products purchased in the U.S.A. from an authorized DB Driven.’ dealer. All products are warranted to be free from defects in material and workmanship under normal use and service for a period of one (1) year when purchased over the counter. This warranty applies to the original purchase only.

DB Drive” will either repair or replace (as its option) any unit that had been found to be defective and under warranty provided the defect occurs within the one (1) year warranty period.

DB DriveTM products installed by an authorized DB Drive” dealer will receive (1) year of warranty.

Either limited warranty periods do not extend to units having been subjected to misuse, abuse, neglect, or accident. In DB Driver’s judgment, products that show evidence of having been altered, modified, or serviced without DB Drivetm’s authorization, will be ineligible under this warranty.

To obtain warranty services please contact your retailer or visit our website at www.dbdrive.net for more details.

DB Research L.L.P. • 302 Hanmore Industrial Parkway ■ Harlingen, TX 78550Phone: (877) 787-0101Fax: (956) 421-4513tech support: [email protected]

Designed and Engineered in the U S A