Audiovox UPA224, UPA424 User Manual
UPA224/UPA424
Owner's Manual/Manual del Usario/Manual de L'Utilisateur
2-Channel/4-Channel Amplifier
Amplificador de 2 Canales/4 Canales
Amplificatteur à 2 Chaînes/4 Chaînes
UPA224/UPA424
Para obtener instrucciones en Espa
ñol, diríjase a la página 12.
INTRODUCTION
Thank you for purchasing a Phase Linear
amplifier. UPA series amplifiers offer extreme
value and performance. Proper installation is
essential for optimal performance and longterm reliability. Please read through this manual
to familiarize yourself with your amplifier and its
functions.
Contents
Installation................................................. 3
Power Wiring.............................................4
Speaker Wiring...................................... .... 5
Input Wiring & Controls ............................. 6
Testing.......................................................7
Troubleshooting......................................... 7
Specifications............................................ 8
90 Day Warranty ....................................... 8
Before You Begin
Exposure to loud sounds or music can
permanently damage your hearing.
Unfortunately, in many cases, the damage is
not noticeable until years later. In addition, loud
music may hinder your ability to hear traffic,
police, and fire or emergency vehicles. Be
responsible and have respect for other people
by listening at moderate volumes!
Pour des instructions en Francais, référez-vous à la page 22.
CAUTION: This device is a high-power audio
amplifier intended for installation in
vehicles with a 12-Volt negative ground
electrical system. Attempting to connect or
operate the amplifier in another type of
electrical system may cause damage to the
amplifier or the electrical system.
Toll-Free Installation Assistance
If you require assistance, contact Technical
Support at 1-800-323-4815 from 8:30 a.m. to
7:00 p.m. EST Monday through Friday and from
9:00 a.m. to 5:00 p.m. EST on Saturday (U.S.A.
and Canada only).
Warranty Service
If your Phase Linear amplifier should ever
require service, you will need to have the
original dated receipt. If you need to return the
unit for any reason, always include the receipt
with the product.
2
UPA224/UPA424
INSTALLATION
Supplies and Tools Needed
To install the amplifiers, you will need tools,
supplies and adapters. It is best to make sure
you have everything you need before you start.
Supplies
• Black electrical tape
• Amplifier Installation Kit
Tools
• Cordless drill with assortment of bits
• Flat-head and Phillips screwdrivers
• Wire cutters/strippers
• Crimping tool
• 12-volt test light or digital multimeter
• Wire brush, sandpaper or scraping tool
(ground connection to vehicle should be a
clean, unpainted metal surface)
Disconnect Battery
Disconnect the negative (-) battery cable before
starting the installation. Check the battery
ground (there should be two (2) ground wires
coming from the battery - one going to the
starter mounting bolt or engine block and
another going to the vehicle chassis) and make
sure the battery is grounded to the chassis with
at least a #8 gauge wire. Also check the
alternator connections, making sure they are
tight and free from corrosion, rust or dirt.
Location and Mounting
The amplifier’s compact design allows great
flexibility in mounting. Common mounting
locations include under the front passenger
seat or in the trunk area.
When selecting a location, remember that
amplifiers generate heat. Select a location on a
flat surface away from heat and moisture where
air can circulate around the amplifier.
Place the amplifier in the mounting location and
mark the positions of the holes with a marker,
pen or pencil. Carefully drill the mounting holes
in the marked positions, then use the supplied
mounting screws to securely fasten the
amplifier to the mounting surface.
WARNING: Do not cover the amplifier with
carpets or enclose it behind interior trim
panels, and do not mount the amplifier in an
inverted or upside down configuration. Be
sure the mounting location and the drilling
of pilot holes will not damage any wires,
control cables, fuel lines, fuel tanks,
hydraulic lines or other vehicle systems or
components.
Routing Wires
Proper wiring connections are illustrated on the
following pages. If wiring connections are made
incorrectly, the unit will not operate properly and
could become permanently damaged. Follow
the installation instructions carefully, or have
the amplifier installed by an experienced
technician.
3
POWER WIRING
SUB-W
MONO
AS/PS
DISP
AUX
Power Indicator (POWER)
The power indicator provides a visual indication
that the amplifier is turned on.
FUSE
POWER
Fuse or Circuit Breaker
Install as close to the
battery as possible.
L
E
R
C
D
2
6
A
F
L
D
A
E
B
2
VO
B
0
L
E
R
T
S
S
A
B
CD-R/RW
A
U
X
I
N
i
E
Q
4
JPTH
LOC/DX
1
2
IN
T
3
R
+12V REM GND LCH RCH
CD
R
4
EC
0
EIVER
W
A
T
T
S
x
S
U
B
-
P
T
W
C
H
M
A
O
N
N
G
O
E
4
R
S
H
F
D
N
5
i
X
-BASS
6
A
S
/
U
P
P
S
D
B
I
S
A
P
N
D
S
C
A
N
i
E
Q
Replacement Fuses (FUSE)
Use only blade-type ATO replacement fuses.
POWER
4
MODE
A
U
X
M
U
T
E
SPEAKER
UPA224/UPA424
Power Terminal (+12V)
Connect the main power wire to the battery,
within 18 inches from the positive (+) battery
post, using an adequate size fuse or circuit
breaker capable of handling the current of the
selected power wire. A fuse or circuit breaker
must be installed to prevent a possible
electrical fire should the main power wire short
to ground.
Remote Terminal (REM)
Connect the power antenna or amplifier turn-on
lead from the receiver to the amplifier remote
terminal.
Ground Terminal (GND)
Make the ground lead as short as possible,
leaving enough length to complete the
installation and to allow for any service that may
be needed at a later date. To ensure a good
ground, scrape away any paint or undercoating
to expose bare metal. Use a "ring" terminal of
the proper gauge and an "outside star washer"
(between the chassis and ring terminal) when
making your ground connection. Although
you’ve scraped away the paint to expose bare
metal, the outside star washer will help to "bite
into" the chassis for a tight, secure ground.
4
UPA224/UPA424
SPEAKER WIRING
NOTE: Do not overlook the use of the proper
gauge speaker wire. The UPA224 and
UPA424 require a minimum of 16-gauge
wire.
The speaker wiring diagrams illustrate options
for connecting two or four speakers. When
installing or connecting full-range speakers, you
must observe the proper speaker polarity.
UPA224
LCH RCH
4 ohm nominal
UPA424
LCH3 RCH4RCH2LCH1
4 ohm nominal
2 ohm minimum
5
INPUT WIRING & CONTROLS
Low Level Input (LOW-INPUT)
Low level (RCA) input is preferred for best
performance. Most trunk/hatchback
installations require a 15-20 foot RCA cable,
while pickup trucks and under-seat mounting
require a 6-12 foot RCA cable. Connect an
RCA cable from your receiver to the RCA input
on your amplifier.
Input Level (LEVEL)
The input level control matches the radio output
to the amplifier input. After installation, turn the
input level control all the way to the left, then
insert a tape or CD. Make sure the bass and
LEVEL
MIN MAX
UPA424
POWER
treble or EQ settings are flat, then turn the
volume up slowly until you hear distortion. Turn
the volume down slightly. To match the amplifier
input, slowly increase the amplifier input level
control (turn clockwise) until you hear distortion,
then turn it down slightly. After completing this
process, your amplifier levels will be matched.
High Level Input (HIGH LEVEL)
High level input should be used when an RCA
output is not available from the receiver.
LOW-INPUT
CH1
CH2 CH4
CH3
CH1/2INPUT
+
HIGH LEVEL
CH3/4INPUT
--+
++--
UPA224/UPA424
NOTE: Only connect the RCA OR High-Level
Input – not both at the same time.
Connect the speaker outputs from the receiver
to the high level input connector, then plug the
connector(s) into the “HIGH INPUT” outlet(s) on
the end of the amplifier.
Wiring Harness Color Codes
White Wire Left Channel Positive (+)
White/Black Wire Left Channel Negative (-)
Gray Wire Right Channel Positive (+)
Gray/Black Wire Right Channel Negative (-)
Black Wire Chassis (Power) Ground
NOTE: The black wire from the high-level
input harness MUST be grounded for the
high-level input circuit to operate properly.
UPA224
POWER
LEVEL
LOW-INPUT HIGH LEVEL
CH1
MAXMIN
CH2
CH1/2INPUT
+- +-
6
UPA224/UPA424
TESTING/TROUBLESHOOTING
.
Before finishing the installation, perform the
following tests to make sure the wiring is correct
and everything is operating properly.
Reconnect Battery
When wiring is complete, reconnect the battery
Problem Possible Cause Corrective Action
Amplifier does not
turn on
negative terminal.
Test Power Wiring
Turn on the receiver, but do not turn up the
volume. The amplifier power light should come
on. If not, check the REM and +12V wires. Turn
up the receiver volume slightly. All speakers
should operate. If not, check wiring connections
at amplifier and speakers.
Test Speaker Connections
These tests make sure the speakers are
connected properly. If speakers don’t play at all,
one (or both) speaker wires may be
disconnected.
Volume control too
sensitive
Distorted sound Input level control adjusted too
Blows fuse(s) at
amp
Engine noise /
Alternator whine
Poor bass response Speakers out of phase Check speaker polarity; reverse the connection to one
Troubleshooting
No power to +12V terminal Check fuse(s)
No power to REM terminal Check head unit fuse(s) and wiring
Blown main fuse at battery Replace fuse and identify cause of failure
Blown fuse at amplifier Replace fuse and identify cause of failure
Faulty ground Reground main power ground to bare metal chassis
Input level control adjusted too
high
high
Power wires connected backwards Reconnect power wires properly
Internal problem with amp Take unit for service
Ground loop(s) Use good quality shielded RCA cables
Faulty ground at amp Reground amp to clean bare metal chassis
Faulty ground at head unit Reground head unit to clean bare metal chassis
Inductive coupling Reroute RCA and/or speaker wires away from factory
Input level on amp set too high Readjust input level
Readjust the input level
Readjust the input level
harnesses
speaker only if two subwoofers are connected to the
amplifier.
7
SPECIFICATIONS
CEA Power Ratings
UPA224/UPA424
UPA224
Power Output: 18 watts RMS X 2 channels
into 4-ohms @ < 1% THD+N
Signal to Noise Ratio: 70dBA below reference
(Reference: 1 watt, 4-ohms)
Dynamic Power: 44 watts, all channels driven
into 4-ohms @ < 1% THD+N
Frequency Response: 20Hz to 20kHz, -3dB
(Reference: 1 watt)
Dimensions: 230mm X 52mm X 130mm
Specifications subject to change without notice.
UPA424
Power Output: 18 watts RMS X 4 channels
into 4-ohms @ < 1% THD+N
Signal to Noise Ratio: 70dBA below reference
(Reference: 1 watt, 4-ohms)
Dynamic Power: 88 watts, all channels driven
into 4-ohms @ < 1% THD+N
Frequency Response: 20Hz to 20kHz, -3dB
(Reference: 1 watt)
Dimensions: 230mm X 52mm X 170mm
8
General Specifications
Channel Separation @ 1kHz: <60dB
(Reference: 1 watt, 4-ohms)
Input Sensitivity: For full power output at
clipping (1% THD+N)
Minimum Sensitivity - 300mVRMS
Maximum Sensitivity - 8VRMS
Reference Supply Voltage for rated output:
14.4VDC (+ 0.2V)
Power Supply: 14.4VDC, (11 to 16VDC
allowable), negative ground
UPA224/UPA424
90 DAY LIMITED WARRANTY
AUDIOVOX CORPORATION (the Company)
warrants to the original retail purchaser of this
product that should this product or any part
thereof, under normal use and conditions, be
proven defective in material or workmanship
within 90 days from the date of original
purchase, such defect(s) will be repaired or
replaced with new or reconditioned product (at
the Company's option) without charge for parts
and repair labor. To obtain repair or
replacement within the terms of this Warranty,
the product is to be delivered with proof of
warranty coverage (e.g. dated bill of sale),
specification of defect(s), transportation
prepaid, to the warranty center at the address
shown below.
This Warranty does not extend to the
elimination of car static or motor noise, to
correction of antenna problems, to costs
incurred for installation, removal, or
reinstallation of the product, or damage to
tapes, compact discs, accessories, or vehicle
electrical systems. This Warranty does not
apply to any product or part thereof which, in
the opinion of the Company, has suffered or
been damaged through alteration, improper
installation, mishandling, misuse, neglect,
accident, or by removal or defacement of the
factory serial number/bar code label(s) or
markings. THE EXTENT OF THE COMP ANY'S
LIABILITY UNDER THIS WARRANTY IS
LIMITED TO THE REPAIR OR
REPLACEMENT PROVIDED ABOVE AND, IN
NO EVENT, SHALL THE COMPANY'S
LIABILITY EXCEED THE PURCHASE PRICE
PAID BY PURCHASER FOR THE PRODUCT.
This Warranty is in lieu of all other express
warranties or liabilities. ANY IMPLIED
WARRANTIES, INCLUDING ANY IMPLIED
WARRANTY OF MERCHANTABILITY, SHALL
BE LIMITED TO THE DURATION OF THIS
WRITTEN WARRANTY. ANY ACTION FOR
BREACH OF ANY WARRANTY HEREUNDER
INCLUDING ANY IMPLIED WARRANTY OF
MERCHANTABILITY MUST BE BROUGHT
WITHIN A PERIOD OF 30 MONTHS FROM
DATE OF ORIGINAL PURCHASE. IN NO
CASE SHALL THE COMPANY BE LIABLE
FOR ANY CONSEQUENTIAL OR
INCIDENTAL DAMAGES FOR BREACH OF
THIS OR ANY OTHER WARRANTY,
EXPRESS OR IMPLIED, WHATSOEVER. No
person or representative is authorized to
assume for the Company any liability other than
expressed herein in connection with the sale of
this product.
Some states do not allow limitations on how
long an implied warranty lasts or the exclusion
or limitation of incidental or consequential
damage so the above limitations or exclusions
may not apply to you. This Warranty gives you
specific legal rights and you may also have
other rights which vary from state to state.
U.S.A: Audiovox Corporation, 150 Marcus
Blvd., Hauppauge, NY 11788, 1-800-323-4815
CANADA: Call 1-800-323-4815 for location of
warranty station serving your area.
Audiovox Electronics Corporation
150 Marcus Boulevard
Hauppauge, NY 11788
1-800-323-4815
www.audiovox.com
©2005 Audiovox
v.021305
9
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