Stinger SPX350X2 User manual

Amplier Manual
Manual de Amplicador
Features
SPX350X2 / SPX700X4
© 2017 Stinger • www.stingerelectronics.com
• RCA or High Level Signal Input
• Weather Resistant for Marine and Power Sports
• Ultra Compact Chassis
• High and Low Pass Crossovers
• Direct Insert Power Terminals
• Remote Volume Control with Mute Included
• Efcient Class D Topology
Características
• Difusión directa con Bluetooth y/o Señal de Entrada RCA
• Resistencia climática para la marina y deportes de poder
• Ultra compacto y Topología eciente tipo D
• Terminales de poder de inserción directa
• Control remoto de volumen y silenciado incluido
• Certicado de Nacimiento de puerto de alimentación

Amplier Owner’s Manual
© 2018 Stinger • www.stingerelectronics.com
SPX350X2 2 CHANNEL SPECIFICATIONS
Frequency Response: ± 1dB from 20Hz to 20kHz
Signal to Noise Ratio: >110dB
High and Low Pass Crossovers: 12dB per Octave
Low Pass Crossover Range: 40Hz to 400Hz
High Pass Crossover Range: 40Hz to 400Hz
Low Level Input Range: 200 millivolts to 8 volts
High Level Input Range: 400 millivolts to 12 volts
Lowest Recommend Load: 4 ohm Bridged or 2 ohm Stereo
Typical Efciency: 80%
Damping Factor Greater than 200
Specications
RMS Power 14.4Vdc ≤1% THD 125 x 2 @ 4 ohm Stereo
175 x 2 @ 2 ohm Stereo
350 x 1 @ 4 ohm Bridged
Recommended Fuse Size: 30 amp
Power/Ground Wire Size: 8 Gauge
Dimensions: 120mm L x 130mm W x 41mm H
4.72” L x 5.11” W x 1.6” H
SPX700X4 4 CHANNEL SPECIFICATIONS
Frequency Response: ± 1dB from 20Hz to 20kHz
Signal to Noise Ratio: >110dB
High and Low Pass Crossovers: 12dB per Octave
Low Pass Crossover Range: 40Hz to 400Hz
High Pass Crossover Range: 40Hz to 400Hz
Low Level Input Range: 200 millivolts to 8 volts
High Level Input Range: 400 millivolts to 12 volts
Lowest Recommend Load: 4 ohm Bridged (bridge rear
channels only) or 2 ohm Stereo
Typical Efciency: 80%
Damping Factor Greater than 200
RMS Power 14.4Vdc ≤1% THD 125 x 4 @ 4 ohm Stereo
175 x 4 @ 2 ohm Stereo
125 x 2 @ 4 ohm Stereo +
350 x 1 @ 4 ohm Bridged
(Rear Channels only)
Recommended Fuse Size: 60 amp
Power/Ground Wire Size: 8 Gauge
Dimensions: 215mm L x 130mm W x 41mm H
8.5” L x 5.11” W x 1.6” H
SPX350x2
SPX350x2
SPX700x4
SPX700x4

© 2018 Stinger • www.stingerelectronics.com
Amplier Owner’s Manual
RCA INPUT
Connect preamp signal cables from the source unit to RCA
inputs in harness.
RCA OUTPUT
Provides a full range signal for an additional amplier. There is no
signal loss if using this output.
CROSSOVER FREQUENCY
Controls the crossover point for the speaker outputs, 40Hz-400Hz
Low or High Pass.
LEVEL
Used to reach maximum amplier power with a wide variety of signal
sources.
HI INPUT
Connect a factory system’s headunit or amplier outputs, no LOC needed.
REMOTE LEVEL CONTROL w/MUTE (REMOTE)
This port is for connecting the optional remote level control. This allows up to
20dB of volume adjustment by turning or push to mute.
12V+
This must be connected to the fused positive terminal (+12V) of
the car’s battery. The fuse must be located within 18 inches of the
battery.
Recommended fuse rating is 30 amperes.
REMOTE
This must be connected to switched +12V, usually a trigger wire
coming from the head unit or ignition. This is not used if using Hi
input auto on feature.
GND
This must be connected to the negative terminal of the car’s
battery or bolted to a clean, unpainted part of the chassis of the
vehicle.
SPEAKER OUTPUTS
Used to connect the amplier to speakers. PSX350.2 minimum impedance is
2 ohm stereo or 4 ohm mono.
INPUT CONFIGURATION (SPX700.4 only)
CONFIG switch on front panel can be used to select either 2CH inputs
or 4CH inputs depending on your source unit capabilities. Select 2CH
if only 2 channels of signal are available, this helps avoid having to use
Y-connectors to drive 4 channels with only 2 channels of signal available.
SPX350X2 SPX700X4
2 Channel Power Amplier 4 Channel Power Amplier
SP X350x2
SPX350x2
SPX700x4
SP X700x4

Amplier Owner’s Manual
© 2018 Stinger • www.stingerelectronics.com
System tuning
1. Install all system fuses.
2. Set the amplier’s input sensitivity
controls to their minimum positions (full
counterclockwise).
3. Set all amplier signal routing switches
according to your system’s design.
4. Make preliminary adjustments to the crossover frequency,
usually 80Hz is good starting point for high and low pass. It may
be necessary to ne tune the crossover
frequency later for the best overall
sound quality.
5. If using an Remote Level Control, set it
to maximum (full clockwise).
6. Turn the headunit on with the volume set to minimum or pair
your bluetooth device and set volume to minimum.
6. Visually check the amplier’s has powered on by the power
LED.
8. Check the condition of all other components to make sure
they are powered up.
9. Set the headunit’s tone controls, balance, and fader to the
center (at) position. Turn off any loudness or other signal
processing features.
10. Set the volume control of the source unit
for maximum undistorted output (on most
headunits / media devices this will be
approximately 7/8 of maximum volume). Use a
very clear and dynamic recording.
11. Turn up the input level control until the speakers reach
maximum undistorted output.
12. Repeat input level adjustments for all other ampliers.
13. Reduce the source unit volume to a comfortable level.
14. Listen to various musical selections to check overall system
balance. Compare front to rear, midbass to midrange, etc. If
one speaker set is too loud compared to another, then its level
must be lowered to blend correctly with the other speakers.
The idea is to reference all speakers to the weakest set.
15. Fine tune crossover frequencies to achieve the smoothest
possible blending of each speaker set.
16. With all levels set correctly, the system will reach overall
maximum undistorted output at the volume level set in step 10.
Volume Control with Mute Function
The included volume control will allow for +/- 20dB of level
adjustment from the remote based on the level set in the previous
step.
In some instances this will not be enough to completely mute the
output level depending on the amount of input signal. In these
cases, a mute function allows for instant mute of output without
adjusting the volume control.
To activate the mute function, press the volume control knob
inward until it clicks.
To return to previous output level; press the control knob again.

© 2018 Stinger • www.stingerelectronics.com
Amplier Owner’s Manual
Troubleshooting
No power: Check voltage at amplier with a DMM (volt meter), B+
and REM (with head unit on) the voltage should register between
12.2V and 14.6V when using the attached ground lead of the
amplier. Check fuse at amplier and at the battery. Use a meter
to verify connection from one end of the fuse to the other, breaks
may not always be visible. If the fuse is blown, check the power
wire and also the amplier for a short. If the short is in the amplier
itself, see your Phoenix Gold dealer. If no short is present, replace
the fuse.
Power without sound: Turn the amplier off and check all input and
output signal cables and power connections. Check the speakers
for shorts with a DMM (volt meter) or by connecting them to
another audio source. After making sure everything is correct, turn
the amplier on again.
“Motor Boating” - the power indicator going off repeatedly when
the audio system is on: Check the amplier’s connection to the
battery. Check battery voltage. If low, recharge or replace the
battery. Check all ground connections.
Power without sound and the PROTECT LED is lit: The red PROTECT
LED lights when the amplier shuts down for either thermal or over-
current protection. A high internal amplier operating temperature
will trigger thermal shutdown: after it cools about 5°C, the amplier
will restart. A shorted speaker lead or operation into unusually low
impedance loads will trigger over-current shutdown: cycle power
at the amplier REM terminal to restore operation. Check for
shorted speaker wiring or damaged speakers or crossover systems
if over-current shutdown occurs.
No sound from one side: Check the balance control in the head
unit. Check speaker connections. Check signal input connection.
Frequent amplier shutdown with automatic recovery: This
indicates chronic amplier thermal shutdown because of
operation at consistently high internal temperatures. High
operating temperature can be caused by inadequate ventilation.
Make sure you are not running a lower than recommend
impedance. Also check for damaged speakers or passive
crossover systems. Finally, chronic thermal shutdown may result
from otherwise normal operation of the amplier at elevated
output power levels, which can be resolved by providing
additional amplier cooling, installing a higher-power amplier, or
reducing amplier output level.
No sound from amplier using Bluetooth: Verify Bluetooth is on and
connected with PGBTM51. Verify power lite is illuminated blue on
PSX350.2
If still no audio, turn off Bluetooth from media device, if sound
now plays from media device, try turning Bluetooth back on from
media device.
No sound from amplier using RCA or Line level input: Verify
Bluetooth is off on any paired Bluetooth device. Bluetooth is
primary source, RCA or line level inputs are not active when
Bluetooth device is connected, even if not actively streaming
content.
Very low output: Check your head unit’s fader control or the
amplier’s input sensitivity level. Make sure HP frequency control is
not set too high and LP frequency control is not set too low at the
same time.
WARRANTY:
LIMITED WARRANTY ON AMPLIFIERS
Stinger warrants this product to be free of defects in materials and
workmanship for a period of one (1) years from the original date
of purchase. This warranty is not transferable and applies only to
the original purchaser from an authorized Stinger dealer in the
United States of America only. Should service be necessary under
this warranty for any reason due to manufacturing defect or
malfunction, Stinger will (at its discretion), repair or replace
the defective product with new or remanufactured product at no
charge. Damage caused by the following is not covered under
warranty: accident, misuse, abuse, product modication or
neglect, failure to follow installation instructions, unauthorized
repair attempts, misrepresentations by the seller. This warranty
does not cover incidental or consequential damages and does
not cover the cost of removing or reinstalling the unit(s). Cosmetic
damage due to accident or normal wear and tear is not covered
under warranty.
INTERNATIONAL WARRANTIES:
Products purchased outside the United States of America are
covered only by that country’s Authorized Stinger reseller and not
by Stinger. Consumers needing service or warranty information for
these products must contact that country’s reseller for information.

Amplier Owner’s Manual
© 2018 Stinger • www.stingerelectronics.com
System Diagrams
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Single 4 Ohm Subwoofer SPX350X2
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Single 4 Ohm Subwoofer SPX700X4
All voice coils are wired in parallel and wired to each channel for a 2 Ohm load on each channel
+
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+
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+
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Dual 4 Ohm Subwoofers
+
BRIDGED
+
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+
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All voice coils are wired in parallel, then each speaker in series for a 8 ohm bridged load
Dual 2 Ohm Subwoofers
BRIDGED
+
-

© 2018 Stinger • www.stingerelectronics.com
Amplier Owner’s Manual
Stinger is a Power Brand of AAMP Global
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P: 888-228-5560
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