Massive Audio P950.5 Instruction Manual

MASSIVE

PRO SERIES 5-CHANNEL AMPLIFIER

950.5P

2007 Massive Audio Inc.

C

Printed in the U.S.A.

Massive Audio Inc.

2261 S. Atlantic Blvd.

City of Commerce, CA 90040 U.S.A.

www.massiveaudio.com

V.012007

Congratulations!

And thank you for purchasing a “Massive Audio” Pro-Series 5­Channel amplifier for your car audio system. You now own an
amplifier of uncompromising design and engineering incorporating the
latest advances in circuitry. This handcrafted amplifier is designed to
deliver the demands of serious sound competitors. You will soon
discover that Pro-Series amplifiers display a fine balance between
high quality, performance and reliability; all proven qualities of
“Massive Audio” products.

“Massive Audio” amplifiers are the result of American Craftsmanship
using only the highest quality components and quality control
standards. In order to provide you with many years of listening
pleasure, we recommend you to have your new amplifier installed by
an Authorized “Massive Audio Dealer.” This will ensure the proper
installation of your product, and will also increase the length of your
warranty to TWO YEARS.
(Please see the warranty section of for more details.)

Please take a moment to thoroughly read this manual to ensure that you
get the maximum benefit from this new addition to your car audio
system. When installed properly, this unit will provide years of
trouble-free performance.

Should your amplifier ever need service or replacement due to theft,
please record the following information, which will help protect your
investment.

Model #: _______________________________________

Dealer’s Name: ___________________________________

Date of Purchase: __________________________________
Installation Shop and Date:__________________________

INTRODUCTION:

DESIGN FEATURES

SMD Hi-Fi audio components

R

FR4 Super Heavy duty Double side PCB.

R
RClass-D high efficiency woofer channel

Hi-Fi E-cap Filter with wide dynamic range for

R

clearer sound reproduction.

Proprietary Noise　Rejection　Circuit

R
RSmart protection circuit design zero tolerance

short circuit, thermal, reverse voltage and over
voltage protection.

RFrequency response: 10 Hz - 25 KHz
RVariable Hi-pass filter: 20 - 200 Hz / 18dB
RHeavy duty power supply.
RIlluminated logo.
RHeavy duty aluminum heatsink.
RDesigned and engineered in U.S.A.

2

Amplifier Functions

1. Speaker connection

• Never connect the speaker cables with the chassis ground. This could destroy
your amplifier.

• Check that your speakers are connected correctly which means plus to plus and minus
to minus

We recommend speaker cable from 16 gauge and up. Other connection variations are shown
attached.

2. BATT+

Battery + (plus) terminal. The + (plus) 12 Volt power cable must be connected with a fuse on
the battery + (plus) terminal. We recommend a fuse listed on page 5 and a copper cable with a
thickness of 8 gauge and up for cable length up to 12 feet (5 meters).

3. REM

Remote terminal. The remote cable must be connected with the radio automatic antenna
terminal so that the amplifier will switch on and off automatically with the radio. If there are
2 or more amplifiers connected to this antenna terminal it might be necessary to add an
additional relay. Please consult your dealer.

4. GND

Chassis ground-terminal. The chassis ground cable must be connected very tight on a
nearby electric conductive place.

5. Gain

Gain control regulates the sensitivity of the amplifier to match the signal output voltage of
your source unit.
The Gain control is not intended for volume adjustment.
Use high quality CD music and increase the volume of your source unit to 75%.
Position the Gain at the minimum and then slowly increase Gain (clockwise).
Stop at the first sign of distortion, then lower the Gain a little ( counter clockwise) to achieve
clear undistorted music at the maximum level.

8. Power LED

The LED lights when the amplifier is switched on. When the amplifier has problems, this LED will shut down
while the protection LED lighting.

9. Protection LED

This LED lights up in case of any malfunction or internal damages. It also shows if the amplifier is short­circuit, overload, over-heat or low voltage protection as activated.

Note: Please check the wiring connections and trouble shoot the source of malfunction when the LED is lit. t
Prolonged incorrect operation or overload can damage the amplifier.

10. 4CH/4CH+SUB button

This press-button is for 4ch / 4ch+sub input selection, when pressed down, the amplifier works as 4-ch
separate input. When not pressed, CH-SUB input will be paralleled to CH-A/B, CH-SUB input jack will be
dummy at same time.

950.5

SPEAKER

L R

A

B

L R

2

POWER

3

4

1

6. RCA audio-input

These RCA inputs are to be connected with your radio preamp RCA outputs. Please use
RCA cables made for car audio, otherwise there could be disturbances. Keep these cables
as short as possible. To avoid distortion from your car electrical system, install the RCA
cables away from existing wiring. If your radio has only one preamp output please use
a suitable Y-RCA adaptor, and press the 4ch+sub button. If your radio has only speaker
outputs you must use a HIGH-LOW-LEVEL adaptor.

7. CROSSOVER

These knobs control the Low Pass Filter, High Pass Filter and Full pass function. When set to
LPF and HPF/SUBSONIC, the cut off frequency can be adjusted by the frequency knobs.

950.5

L

R

INPUT

A B

6

SUB

MIN M AX

10

4+S UB

4CH

A B

GAI N HPF

OFF 200HZ

MIN MAX

5

GAI N HPF

MIN

SUB

50H Z

OFF

MAX

OFF 20 0HZ

LPFSUB SON ICGAI N

7

50H Z 200HZ

7

PRO TEC TIO N

9
8

POW ER

REM OTE

4

Pre Installation

Model Fuse Wire

P 950.5 80 AMP 4~6 Gauge

We recommend to have the installation done by an Authorized Massive Audio, Dealer.
Required Power, Ground Connection and proper external fuse as indicated below:

Wiring Configuration

P 950.5

FIVE Channel mode

Minimum 1 Ohm Load

We recommend a fuse to be installed within 16 inches of the battery.
The Ground Wire should be connected directly to the chassis of your vehicle with a

metal to metal ground point connection.
The amplifier must be securely mounted to a solid, dry and low vibration surface in the

trunk or passenger area.
Position the amplifier in an area with sufficient air flow to insure proper heat dissipation.
Position the amplifier for an easy access to the input-setting controls.
Install all amplifier cables as far as possible from car electrical cables. i.e. The car

ignition cable.

Minimum Load

2 Ohms Stereo

4 Ohms Mono

6

SPECIFICATIONS

P950.5

4ohm RMS power at 13.8V (THD<1%)

2ohm Stereo power at 13.8V (THD<1%)

Max power at 13.8V (THD<1%)

Voltage Range

4x100W + 550W

4x200W + 550W

2x400W + 900W

20~200Hz
18dB/Oct

40~180Hz
18dB/Oct

20Hz~33KHz

>89dB

0.2v~5v
Yes

80A

11v~15v
382 x 214 x 66
15 x 8.4 x 2.6

Troubles Shooting

Malfunction Should Check

Power LED doesn`t light up check all fuses on the amplifier

check main fuse near the battery
check plus and minus battery cables
check remote voltage

Power LED is on but no sound check volume control on the radio

check GAIN regulator on the amplifier
check RCA cables and connections
check speaker cables and connections

Bass response is low one speaker cable could be disconnected

the bass control on the radio is set on low
an active crossover unit is adjusted wrong

The amplifier switches bad chassis ground connection to the amplifier
On and Off cable terminals and battery terminals are oxidated

low voltage from the battery
remote wire is not connected right

One channel has no function check RCA connections of this channel

check speaker connection of this channel
balance regulator to the radio is not set in the middle
check speakers for this channel

For additional questions please contact your authorized Massive Audio, dealer.

8

• Massive Audio, Inc. warrants all manufactured amplifier

products to be free from defect in material and workmanship
for a period not to exceed TWO YEARS* from the date of
original purchase when installed by an authorized “Massive
Audio” dealer. Units that are not installed by an authorized
“Massive Audio” dealer maintain a warranty not to exceed 90
days from the original purchase date by the original purchaser.

• PrOducts that displays abuse such as power deficiency, over

driving the amplifier or clipping the input require
purchase of new PCB for replacement.

• “Massive Audio” obligations under this warranty are limited to

repairing or replacing, at its own sole option, any such
defective products. This warranty does not apply to equipment
that has been damaged by accident, negligence, or
misapplication or has been altered or modified in anyway.
This warranty applies only to the original purchaser who must
have properly registered the product within 10 days of
purchase.

Except as provided herein, Massive Audio, Inc. makes no warranties or
representations, express or implied, including any warranty implied by
law, whether for merchantability or fitness for a particular purpose and
shall be effective only for the period that this express warranty is
effective. SEE THE WARRANTY REGISTRATION CARD TO
ADDITIONAL INFORMATION.

WARRANTY

6 323 1 69 6303 2

REM GND

BRIDGED

BRIDGED

P 950.5

10