PrecisionPower MPA700.4D Atom Marine 4-Channel Amplifier Owner’s Manual
- June 6, 2024
- PrecisionPower
Table of Contents
PrecisionPower MPA700.4D Atom Marine 4-Channel Amplifier
THANK YOU AND CONGRATULATIONS
Thank you for your decision to purchase an ATOM Marine Series mobile
amplifier! Our Amplifiers are the result of extensive engineering, testing,
and bulletproof construction. Their versatility enables compatibility with
optional signal and audio processors. These high-quality MOSFET amplifiers may
be configured to allow maximum flexibility in designing different types of
speaker systems.
DIGITAL CLASS D FULL RANGE AMPLIFIERS
The ATOM Marine Series are high-quality MOSFET amplifiers capable of running a
full system range, or they may be selected only to power subwoofers. It is
essential that you closely follow the wiring instructions in this Owner’s
Manual so that you get the most from your ATOM Series mobile amplifier.
Some of our amplifiers can produce a sound pressure level that can cause permanent damage to your hearing system. High sound pressure levels combined with long-time listening can give permanent damage to your hearing system. Choose a listening level that is comfortable for your ear. To establish a safe level: Start your volume control at a low setting. Slowly increase the volume until you can hear the music comfortably and clearly, without any distortion. Sudden sound shocks are dangerous.
INSTALLATION EXPERIENCE
MOUNTING LOCATION
Your ATOM Series amplifier comes with mounting feet that need to be attached to the amplifier before installation. Once the feet are in place, use the amplifier as a template and mark the four screw locations. Use caution to ensure there are no objects behind the installation surface that may become damaged during drilling. The amplifier should be protected from exposure to moisture and direct sunlight. The best places to mount your amplifier are the trunk floor, under the driver’s seat, or on the back of the rear seat, for alternate installation locations.
WARNING
We recommend you do careful planning before you start to install this equipment. Choose a location for the amplifier which will allow plenty of air to circulate. Do NOT mount the amplifier upside down under the hat rack. In the amplifier case, there are double mounting holes to make the installation job more manageable. The screws supplied in the plastic bag are self-drilling when used with an electric screwdriver.
If the surface where you intend to mount the amplifier isn’t big enough, you can mount the amplifier on a separate fiberboard or similar. This will also isolate the amplifier chassis from ground.
NOTE! Before you start drilling, make sure that there are no fuel or brake lines or wiring looms behind where you intend to drill.
TECHNICAL FEATURES
Atom amplifiers adopt the optimum class d performance, reliability, and footprint of the original Atom and ion platforms. At first glance, you’ll notice several key improvements. ATOM’s signal inputs, power/ground, and speaker connections are all relocated to the chassis’s leading edge for an easier, more appealing install. All pre-amp & crossover options are conveniently located on the backside. You might not notice additions to the circuit board, including increased power supply & output stage components & monoblock bridging capability. Installation of Atom amplifiers is unique, using a mounting pedestal at each corner. The pedestals elevate the heatsink, improving airflow around and under the chassis. Additionally, rubber grommets under and inside each pedestal electrically isolate the amplifier chassis from the vehicle chassis, reducing the potential for ground loop noise.
MPA700.4D
- 100W x 4 @ 4-ohm Stereo
- 175W x 4 @ 2-ohm Stereo
- 350W x 2 @ 4-ohm Bridged
- Variable 50-500Hz 12dB High Pass Filter
- Variable 50-500Hz 12dB Low Pass Filter
- Variable 0-18dB 45Hz Bass Boost
- Total Harmonic Distortion: 0.05% @ 4-ohm
- Frequency Response: 20- +20KHz
- Signal-to-Noise Ratio: 90dB
- Channel Separation: ≤55dB
- In put Sensitivity: 250mV-6V
- Di mensions: 6″W x 2.25″H x 10″L
ADDITIONAL SPECIFICATIONS
MPA1000.5D
- 60W x 4 (4-ohm Stereo) + 250W x 1 (4-ohm Mono)
- 100W x 4 (2-ohm Stereo) +450W x 1 (2-ohm Mono)
- 200W x 2 (4-ohm Bridged) + 450W x 1 (2-ohm Mono)
- Variable 50-500Hz 12dB High Pass Filter (chs. 1-4)
- Variable 50-500Hz 12dB Low Pass Filter (chs. 1-5)
- Variable 20-50Hz 12dB Subsonic Filter (ch. 5)
- Selectable 0-180。Phase Switch (ch. 5)
- Variable 0-18dB 45Hz Bass Boost (ch. 5)
- Total Harmonic Distortion: 0.05% @ 4-ohm
- Frequency Response: 20- +20KHz
- Signal-to-Noise Ratio: 90dB
- Channel Separation: ≤55dB
- Input Sensitivity: 250mV-6V
- Dimensions: 6″W x 2.25″H x 13.25″L
MPA1200.1D
- 400w x 1 @ 4-ohm Mono
- 700w x 1 @ 2-ohm Mono
- 1, 200w x 1 @ 1-ohm Mono
- Variable 50-500Hz 12dB Low Pass Filter
- Variable 20-50Hz 12dB Subsonic Filter
- Selectable 0-180。Phase Switch
- Variable 0-18dB 45Hz Bass Boost
- Total Harmonic Distortion: 0.3% @ 4-ohm
- Frequency Response: 20 – 500Hz
- Signal-to-Noise Ratio: 90dB
- Input Sensitivity: 250mV-6V
- Dimensions: 6″W x 2.25″H x 10″L
FUNCTIONS
-
LINE IN (RCA)
The RCA style input jacks are for use with source units that have RCA line level outputs. A source unit with a minimum of 250mV is required for proper operation.
However, this input will accept levels up to 6Vrms. -
High Level Input
If you are installing by using a high level . you do not need to connect to the remote.
To hear a better sound quality, you must connect the high-level ground wire to the headunit ground. -
Phase Shift
Phase Shift Switch ( 0 or 180 degrees): Allows you do change the phase of your subwoofer from 0 to 180 degrees to compensate for timing differences between drivers. -
Thru-Out
The LINE OUT allows you to build multiple amplifiers systems without having to use splitter cords to distribute the signal. Now it is simply a matter of bringing one set of RCAS into the fist amplifier, then using the line out RCA jacks as the feed to the next amplifier. -
Bridgeable Mode
Master Mode
For bridging into a single speaker load, to do this you must utilize the MASTER/SLAVE switch settings. For the MASTER amplifier, set the switch setting to MASTER. This will route the signal through RCA to the other (slave) amplifier. On the slave amplifier set this switch to the SLAVE position. Refer to Auxiliary Output Configuration section of this guide. Set the PHASE switch on the slave amp, move the phase switch from 0 to 180, exactly opposite of the master amp. Refer to the Phase Switches section of this guide.
Slave Mode
On the slave amplifier be sure to turn off all crossovers. For the speaker connections, connect the positive (+) speaker lead from the speaker to the positive (+) speaker terminal of the master amplifier. On the negative (-) speaker connection, take the negative (-) speaker terminal of the master amplifier and connect it directly to the negative (-) speaker terminal of the slave amplifier. The remaining positive (+) speaker terminal of the slave amplifier must be connected to the negative (-) speaker lead from the speaker. The impedance of the speaker must not exceed 2Ω. See diagram below.
NOTE: For best results, connect both negative speaker terminals on the master amp to both negative terminals on the slave amp using at least 12 AWG cable.
-
Remote Bass Boost Control
This control adjusts the Bass Boost gain for the amplifier’s speaker output (0~ +12dB)
Packed product can be different from the photograph. -
SPEAKER Terminals
As shown in the wiring diagrams, be sure to observe speaker polarity through the system and speaker impedance. This specially tooled terminal is designed to accommodate up to 10-gauge speaker wire. -
FUSES
For convenience, all ATOM Series amplifiers utilize common automotive ATC type fuses.
For continued protection in the event that a fuse blows, replace the fuse only with the same value. -
+BATT (Power Input Connection)
This terminal is the main power input for the amplifier and must be connected directly to the positive (+) terminal of the car battery. -
Remote (Remote Input Connection)
All atom Series amplifiers can be turned on by applying 12 volts to this terminal. This can be found on the rear of the source unit in the form of an electric antenna output, or a remote output.
If this is not available, you can wire to the ACC position on the key. An 18-gauge wire is sufficient to run the REMOTE. -
GND (Ground Input Connection)
A good quality ground is required for your ATOM Series amplifier to operate at peak performance.
A short length of cable the same gauge as your power cable should be used to attach the ground terminal directly to the chassis of the vehicle. -
Power Indicator
The White when the power is on. (PPI
Logo Badge) -
Gain adjustment control
The input level can be adjusted with this control. Turn it in the clockwise direction when the output level of the car audio unit seems low.
-
Sub Sonic Filter
Variable subsonic filter (20Hz ~50Hz)
The subsonic filter will roll off all of the unwanted frequencies below 20HZ ~50Hz. This will allow the amplifier to use that wasted power on the audible bandwidth. -
Low pass Filter
ATOM amplifier has an internal variable low pass filter. It can be set from 50 p to 500Hz. -
Bass boost level control
Turn this control to boost the frequencies around 45Hz to a maximum of 12dB. -
Protection Indicator
When the PROTECTOR is activated, the indicator lights in red. When the PROTECTOR Is activated refer to the Troubleshooting Guide. (PPI Logo Badge). -
High pass Filter
ATOM amplifier has an internal variable High pass filter. It can be set from 50 up to 500 Hz. It also has that can be set from 500 up to 5KHz. -
High pass/ Full/Low pass selector switch
It is activated in each of the positions in top control. -
Channel SUM selector switch
Choose OFF position for 4Ch. stereo input mode.
This allows the front & rear channels to receive signal from only the front & rear RCA inputs. Choose ON position. this allows for without 5channel(SUB) input.
REMOTE CONTROL INSTALLATION
REMOTE SUBWOOFER LEVEL CONTROL
This input allows you to add a remote that will enable you to control your ATOM amplifier’s subwoofer output from your dashboard. There is a level control provided on the amplifier next to the phone jacks to adapt the amplifier to all kinds of signal sources with varying levels. It should not be used as volume controls. Start with a “12′ clock” setting of the level controls. If you set the head unit volume to 75% of the maximum, you should achieve good sound without distortion. Find a point of the level setting where the distortion is just discernible. At this point, slightly reduce the control.
HOW TO INSTALLATION
The dash control mounts with two screws, which attach to the underside of the dashboard. Slide under the dash and place the dash control in its mounting position, mark the two mounting holes, drill pilot holes, and secure with two screws.
SPEAKER & POWER CONNECTION
LOW INPUT MODE 2Ω~8Ω
HIGH INPUT
MODE 2Ω~8Ω 
LOW INPUT
MODE 2Ω~8Ω 
HIGH INPUT MODE 2Ω~8Ω
HIGH INPUT BRIDGED MODE
MPA700.4D
100W x 4ch| 4 Ohm.| 14.4V 1Khz RMS.
175W x 4ch| 2 Ohm.| 14.4V 1Khz RMS.
350W x 2ch| 4 Ohm.| 14.4V 1Khz RMS.
LOW INPUT MODE 2Ω~8Ω
HIGH
INPUT MODE 2Ω~8Ω 
LOW INPUT MODE 1Ω~8Ω 
HIGH INPUT MODE 1Ω~8Ω 
These amplifiers are designed to work within a 10 to 16.8 volt DC range.
Before any wires are connected, the vehicles electrical system should be
checked for correct voltage supply with the help of a voltmeter.
First, check the voltage at the battery with the ignition in the OFF position.
The voltmeter should read not less than 12V. If your vehicles electrical
system is not up to these specifications, we recommend having it checked by an
auto electrician before any further installation. Once the vehicle is checked,
make certain the correct cable size is used. We recommend using as large a
gauge cable as possible, use the Power Cable Selection Chart
to calculate the correct power wire size for your application.
Power
This amplifier should be wired directly to the vehicle battery using the
appropriate size cable. Start at the vehicle battery and run the power cable
through to the amplifier. Avoid running the power cable over engine components
and near heater cores. The use of an online fuse o circuit breaker is a must ;
this will prevent the risk of a potential fire caused by a short in your power
cable. Connect the fuse holder or circuit breaker as close to the battery
positive (+) terminal as possible ( no farther then 18″ from the battery).This
fuse or circuit breaker should be no greater than the sum of the fuses found
on the chassis of your amplifier (also see specifications chart). You may now
connect the cable to the battery but remember to leave the fuse out or circuit
breaker “off” until all other cable connections are made.
Ground
When grounding your amplifier, locate a metal area close to the amplifier that
is good source of ground (preferably the floor pan). Once again, investigate
the area you wish to use for electrical wires, vacuum lines, and brake or fuel
lines. Use either a wire brush or sandpaper to eliminate unwanted paint for
better contact of the ground. Secure the ground cable to the body using a
bolt, star washer and nut. Spread silicon over the screw and bare metal to
prevent rust and possible water leaks.
Now it’s time to connect the power and ground cable to the amplifier. Cut both
cables to length. Strip off 1/2 -inch (1.2mm) of the insulation so that the
bare wire will go all the way in the terminal block on the side panel of the
amplifier, seating it firmly so no bare wire is exposed. Use a Philips (cross)
type screwdriver to loosen the + BATT and the GND connections on the
amplifier. Insert the ground first, and then the + 12V and please make sure
that you place them into the correctly marked terminals.
Then tighten the screws down securely.
Remote
This terminal must be connected to a switched +12V source. Typically, remote
turn-on leads are provided at the source unit that will turn on and off the
amplifier in correspondence with the source.
If the source unit does not have a remote turn-on lead, then a switched +12V
supply must be used, like the ACC, +12v.
LIMITED 90-DAY CONSUMER WARRANTY
LIMITED TWO-YEAR CONSUMER WARRANTY WITH PURCHASE AND INSTALLATION BY A
PRECISIONPOWER
AUTHORIZED DEALER
Precision power promises to the original purchaser, to repair or replace this
product with a new or refurbished unit (at Precision power’s sole and absolute
discretion) should it prove to be defective in workmanship or material under
normal use, for a period of two- years from the date of purchase from the
Precision power authorized dealer, PROVIDED the product was purchased and
installed by a Precision power authorized dealer. During this two-year
period, there will be no charge for product repair or replacement, PROVIDED
the unit is returned to Precision power, return shipping pre-paid, along with
the required proof of installation, the bill of sale or other dated proof of
purchase, and the consumer’s contact information.
If the unit is installed by anyone other than a Precision power authorized dealer, the warranty period will be 90-days from the date of purchase. This warranty is non- transferable and does not apply to any unit that has been modified or used in a manner contrary to its intended purpose and does not cover damage to the unit caused by installation or removal of the unit. During this 90-day period, there will be no charge for the repair or replacement PROVIDED the unit is returned to Precision power, return shipping prepaid, along with the bill of sale or other dated proof of purchase and the consumer’s contact information.
This warranty is void if the product has been damaged by accident or unreasonable use, neglect, improper service or other causes not arising out of defects in materials or construction. This warranty does not cover the elimination of externally generated static or noise, or the correction of antenna problems or weak reception, damage to speakers, accessories, electrical systems, cosmetic damage or damage due to negligence, misuse, failure to follow operating instructions, accidental spills or customer applied cleaners, damage due to environmental causes such as floods, airborne fallout, chemicals, salt, hail, lightning or extreme temperatures, damage due to accidents, road hazards, fire, theft, loss or vandalism, damage due to improper connection to equipment of another manufacturer, modification of existing equipment, or Product which has been opened or tampered for any reason. Units which are found to be damaged by abuse resulting in thermally damaged voice coils are not covered by this warranty but may be replaced at the absolute and sole discretion of Precision power. Unit must be returned to Precision power, postage pre-paid, with bill of sale or other dated proof of purchase bearing the following information: consumer’s name, telephone number, and address, authorized dealer’s name and address, and product description. Please contact Precision power warranty office at 800-724-1377 or repairs@precisionpower.com to obtain a Return Authorization number prior to shipping the product.
NOTE! This warranty does not cover labor costs for the removal and unire tin. stallation of the amplifier
IN ORDER FOR THE TWO-YEAR WARRANTY TO BE VALID, YOUR UNIT MUST BE SHIPPED WITH
PROOF OF INSTALLATION BY A PRECISIONPOWER
AUTHORIZED DEALER. ALL UNITS RECEIVED BY PRECISIONPOWER FOR WARRANTY REPAIR
WITHOUT PROOF OF PRECISIONPOWER AUTHORIZED DEALER INSTALLATION AND PURCHASE
WILL BE COVERED BY THE LIMITED
1 YEAR WARRANTY.
BY PURCHASING THIS PRODUCT, ALL WARRANTIES INCLUDING BUT NOT LIMITED TO
EXPRESS WARRANTY, IMPLIED WARRANTY, WARRANTY OF MERCHANTABILITY, FITNESS FOR
PARTICULAR PURPOSE, AND WARRANTY
OF NON-INFRINGEMENT OF INTELLECTUAL PROPERTY ARE EXPRESSLY EXCLUDED TO THE
MAXIMUM EXTENT ALLOWED BY LAW, AND PRECISIONPOWER NEITHER ASSUMES NOR
AUTHORIZES ANY PERSON TO ASSUME FOR IT ANY LIABILITY IN CONNECTION WITH THE
SALE OF THE PRODUCT. PRECISIONPOWER HAS ABSOLUTELY NO LIABILITY FOR ANY AND
ALL ACTS OF THIRD PARTIES INCLUDING ITS AUTHORIZED DEALERS OR INSTALLERS. BY
PURCHASING THIS PRODUCT, THE CONSUMER AGREES AND CONSENTS THAT ALL DISPUTES
BETWEEN THE CONSUMER AND PRECISIONPOWER SHALL BE RESOLVED IN ACCORDANCE WITH
CALIFORNIA LAWS IN LOS ANGELES COUNTY, CALIFORNIA.
Some states do not allow limitation on how long an implied warranty lasts. In such states, the limitation or exclusions of this Limited Warranty may not apply. Some states do not allow the exclusion or limitation of incidental or consequential damages. In such states, the exclusion or limitation of this Limited Warranty may not apply to you. This Limited Warranty gives you specific legal rights, and you may have other rights which vary from state to state.
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