VIETA EV5500 User manual

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INTRODUCTION
VIETA amplifiers provide high-performance sound reinforcement for your mobile
audio equipment. Its versatility enables compatibility with optional Equalizers,
Frequency Dividing Crossover Networks, and other audio processors in a customized
system. The Multi-Mode bridging capabilities allow flexibility in hosting several different
speaker configurations.
To achieve optimum performance, it is highly recommended that you read this
Owners Manual before beginning installation.
WARNING
High powered audio systems in a vehicle are capable of generating "Live Concert"
high levels of sound pressure. Continued exposure to excessively high volume sound
levels may cause hearing loss or damage. Also, operation of a motor vehicle while
listening to audio equipment at high volume levels may impair your ability to hear
external sounds such as; horns, warning signals, or emergency vehicles, thus
contributing to a potential traffic hazard. In the interest of safety, VIETA recommends
listening at lower volume levels while driving.

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Before beginning the installation, consider the following:
1. Do you plan to add additional mobile electronics equipment in the future?
If you plan to expand your system by adding other components sometime in the
future, ensure adequate space is left and cooling requirements are met.
2. Should you use high or low level inputs?
Your Amplifier has been designed to accept Low-Level(Pre-Amp outputs from your
radio) source signal. If your radio/source is equipped with Pre-Amp outputs, it is
possible to utilize them to drive the Amplifier and the 2 front speakers. Then, use the
built-in power of your radio to drive the 2 rear speakers.
3. Are your components matched?
The RMS power rating of your speaker(s) must be equal or greater than the RMS
power rating of your amplifier. Your speaker(s) also must be 2 - 8 Ohms impedance
for stable amplifier operation. Impedance information is normally printed on the
speaker basket or magnet.
4. Where will the amplifier be installed?
Consider both the length of your leads, and routing when determining the mounting
location. It is best to run power and RCA wiring on opposite sides of the vehicle to
prevent induced noise. Pre-amp input jacks require a length of high quality shielded
male to male RCA patch cord.
PLANNING YOUR SYSTEM

[FIG.1] EV5500
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CONNECTING THE POWER (Fig.1)
CAUTION:
AS A PRECAUTION, DISCONNECT THE POWER WIRE FROM THE BATTERY WHILE MAKING THE
POWER AND GROUND CONNECTIONS TO THE AMPLIFIER.
4/8 GAUGE(Thicker if planning for additional Amplifiers) wire is recommended for
both the power and ground wires. 12 Gauge, for the remote turn-on wire. Both
types are available at most Mobile Audio Dealers or Installation Shop.
(1) Ground :To Vehicle Chassis
To avoid unwanted ignition noise caused by ground loop, it is essential that the
Amplifier be grounded to a clean, bare, metal surface of the vehicle's Chassis
NOTE :
GROUND WIRE SHOULD NOT BE EXTENDED MORE THAN 3 FT. (1 METER).
(2) +12 Volt(Fused) Constant Power:To Battery (+)
Due to the power requirements of the Amplifier, this connection should be made
directly to the positive (+) terminal of battery. For safety measures, install an in-line
Fuse Holder (not included) as close to the battery positive (+) terminal as
possible with an ampere rating; not to exceed total value of fuses in Amp.
(3) Remote Turn-On Input: To remote turn-on output of Car Stereo
This Amplifier is turned "ON" remotely when the vehicle's stereo is turned "ON".
NOTE :
IF YOUR RADIO DOES NOT HAVE A +12 VOLT OUTPUT LEAD WHEN THE RADIO IS TURNED ON, THE "REMOTE"
TERMINAL ON THE AMPLIFIER CAN BE CONNECTED TO VEHICLE'S ACCESSORY CIRCUIT THAT IS LIVE WHEN THE
KEY IS "ON".

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CONTROL FUNCTIONS
8. Remote Turn On
This terminal turns on the amplifier when (+)12 volt is applied to it. Connect it to the
remote turn on lead of the head unit or signal source.
9. (+)12 Volt Power
Connect this terminal through a FUSE or CIRCUIT BREAKER to the positive terminal of
the vehicle battery or the positive terminal of an isolated audio system battery.
Warning: Always protect this power wire by installing a fuse or circuit breaker of the appropriate
size within 12 inches of the battery terminal connection.
10. SPEAKERS
The speaker connector in here.
11. LED
Will illuminate BLUE to indicate the amplifier is on and operating normally, and will be
illuminated RED if the amplifier shuts down due to short circuit, DC offset, or
overheating detected by on board protection circuitry

FIG. 2 FIVE CHANNEL BRIDGED CONFIGURATION
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3CH
1CH 2CH 5CH
4CH
5CH 5CH
5CH
FIG. 1 FIVE CHANNEL STEREO CONFIGURATION

FIG. 4 FIVE CHANNEL TRI MODE CONFIGURATION
5CH 5CH
5CH
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FIG. 3 FIVE CHANNEL BRIDGED CONFIGURATION
5CH 5CH
5CH

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TROUBLE SHOOTING GUIDE
Check fuses in amplifier.
Be sure Turn-on lead is connected
Repair power wire or connections
Check connections to radio
Check fuse
Inspect for short circuit or an
open connection.
Reverse Left and Right
RCA inputs to determine if it is
occurring before the amp.
Check Tuner/Deck volume level.
Clean contacts on fuse holders.
Be sure proper speakers are used
to ensure impedance
recommendations are observed.
(If you use an Ohmmeter to
check speaker resistance,
please remember that DC
resistance and AC impedance
may not be the same.)
NO SOUND
AMP NOT
SWITCHING
ON
NO SOUND
IN ONE
CHANNEL
AMP
TURNING
OFF
MEDIUM/
HIGH
VOLUME
SYMPTOMS CHECK POINTS CURE
Is the power
LED illuminated?
No power to power wire
No power to remote
wire with receiver on
Fuse broken
Check speaker leads
Check audio input
leads
Check speaker load
impedance

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WARNINGS
Investigate the layout of your automobile throughly before drilling or cutting
any holes. Take care when to work near the gas tanks, lines, or hydraulic
lines, and electrical wiring. Don't use power amplifier unmounted. Attach
this system securely to the automobile to prevent damage, particularly in
the event of an accident. Don't mount this system so that the wire
connections are unprotected or are subject to pinching or damage from
nearby objects. The +12V DC power wire must be fused at the battery
positive terminal connection. Before making or breaking power connections
at this system power terminals, disconnect the +12V wire at the battery end.
Confirm your radio/cassette player and/or other equip is turned off while
connecting the input jacks and speaker terminals. If you need to replace
the power fuse, replace it only with a fuse identical to that supplied with the
system. Using a fuse of different type or rating may result in damage to this
system which isn't covered by the warranty.