DB Drive A1 750 User Manual
A1 502
Peak @ 14.4V :
2ohm
4 ohm
Frequency Resp.
S/N Rao (A-weight)
THD with 80k filter
Low Input Level
Crossover Freq.
Bass EQ
Bass Remote Capability
Input Voltage
-2 x 50W
20Hz - 20KHz
>90dB
<.05%
285mV - 6V
40Hz - 150Hz
6dB - 12dB @ 45Hz
No
11.2V - 14.4V
Low Impedance Stability
A1 502 - 4 Ohms Stereo (2 Channel)
A1 504 - 4 Ohms Stereo (4 Channel)
A1 500 -2 Ohms Mono
A1 750 -2 Ohms Mono
LIMITED WARRANTY
A1 504
-4 x 50W
20KHz
20Hz -
>90dB
<.05%
285mV - 6V
40Hz - 150Hz
6dB - 12dB @ 45Hz
No
11.2V - 14.4V
A1 500
1 x 500W
1 x 250W
20Hz - 150Hz
>90dB
<.05%
285mV - 6V
40Hz - 150Hz
6dB - 12dB @ 45Hz
Yes (Remote Included)
11.2V - 14.4V
A1 750
1 x 750W
1 x 325W
20Hz - 150Hz
>90dB
<.05%
285mV - 6V
40Hz - 150Hz
6dB - 12dB @ 45Hz
Yes (Remote Included)
11.2V - 14.4V
DB Drive warrants any products purchased in the U.S.A. from an
authorized DB Drive 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. This warranty applies to the original purchase only.
DB Drive will either repair or replace (as its option) any unit that has
been found to be defective and under warranty provided the defect occurs
within the one (1) year warranty period.
This limited warranty does not extend to units have been subjected to
misuse, abuse, neglect, or accident. In DB Drive’s judgment, products that
show evidence of having been altered, modified, or serviced without DB Drive’s
authorization, will be ineligible under this warranty.
To obtain warranty service please contact your retailer or visit our
website at www.dbdrive.net for more details.
A1 502 , A1 504 , A1 500,
A1 750
Due to continuous improvement of the product the Specifications are subject to change without notice.
INTRODUCTION
Congratulations on your purchase of a DB Drive state-of-the-art power amplifier. 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 amplifier 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 unforeseen reason this product may need warranty service, your receipt will be
necessary to establish purchase date.
RECOMMENDATION
A power amplifier’s performance is only as good as its installation. Proper installation will
maximize 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 car’s battery until the
installation is completed to avoid possible damage to the electrical system.
SPEAKER CONNECTIONS
IMPORTANT! The following speaker connection are for the amplifier in normal mono
configuration.
Make the speaker connections using speaker wire that is at least 16 gauge or heavier.
As with any audio component, proper phasing of the amplifier and speakers is essential
for strong bass response. When connecting, make sure that positive (+) from the amplifier
is connected to the positive (+) of the speaker, and the same for negative (-).
Please note that although the A1 500 , and A1 750 are mono amplifiers, we have
provided two sets of speaker terminals on the amplifier. These terminals are connected in
paralleled internally (connected together). The second set of speaker terminals are
intended for ease of connection when running multiple woofers.
2 CHANNEL SPEAKER CONNNECTION
Speaker Output
RRLL
Fuse
Power Input
+12V Remote Ground
Fuse amplifiers power wire at the battery
Be sure to fuse the power wire within 12” of the car’s battery. This will protect the car’s
battery in case of a short circuit between the power amplifier and battery. THIS IS A
MUST, the amplifier’s built-in fuse will only protect the power amplifier not the car’s
battery!
Use high grade wire connectors
To ensure maximum power transfer and secure safe connections, it is recommended to
use high grade barrier spades (for connection at amplifier) and terminal rings (for connec
tion at battery).
Do not run any wires underneath vehicle
Exposed wires have a chance of being cut or damaged. It is best to run all wires through
the vehicle under the carpet and/or side panels. This lends to a cleaner installation and
less risk of damage.
Use caution when mounting amplifier
Remember there are many electrical wires, gas lines, vacuum lines, brake lines as well as
a gas tank in the automobile. Make sure you now where they are when mounting the
amplifier to avoid puncturing lines, shorting wires or drilling holes in the gas tank.
Run signal wires away from electrical wires
To avoid possibility of induced noise from the car’s electrical system (i.e. popping noises
or engine noise), run wires away from the car’s electrical wiring.
Make all ground wires as short as possible and at the same point
In order to reduce the chance of ground loops (i.e. engine noise), make the grounding
wire as short as possible to reduce the wire’s resistance. Also, when using multiple
components, make sure all units are grounded at the same point.
Avoid sharp edges when running the wires
To avoid the possibility of power, signal or speaker shorts, be careful not to allow the
amplifiers wires to come in contact with sharp edges. Use a grommet to protect the wire
when running through the fire wall.
4 CHANNEL SPEAKER CONNNECTION
Speaker Output Power Input Speaker Output
- -
+
4 Ohm Speaker
CH1 CH2
+
4 Ohm Speaker
Ground Remote +12V
-
Fuse
MONOBLOCK SUBWOOFER CONNNECTION
Mono Subwoofer Output
* 4 Ohm DVC Woofer
(2 Ohm minimum)
* Can also power a pair of 4 Ohm or 2 Ohm DVC Subwoofers.
Fuse +12V Remote Ground
CH3 CH4
- -
+
4 Ohm Speaker
Power Input
A1 502
A1 504
+
4 Ohm Speaker
A1 500
-
01 02
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