STETSOM EX3000 Black Edition 1 Ohm Mono Car Amplifier User Manual
- June 6, 2024
- STETSOM
Table of Contents
EX3000
BLACK EDITION
USER MANUAL
Introduction
Thank you so much for choosing a Stetsom product! The chosen amplifier has been developed with the most advanced technology for those who are looking for high performance audio systems with one or more speakers and “pro car audio” system.
Before installing
Please read this manual carefully.
- All product connections must be made with the product turned OFF.
- A fuse must be installed between the amplifier and the battery is required to protect against overcharging. The fuse has to be installed as close to the battery as possible. Check the proper fuse for the amplifier according to its consumption.
- Use gauges recommended in this manual to avoid the overheating of the cables to obtain maximum power.
- Keep the cables as short as possible to increase sound fidelity and avoid potential power losses.
- Route the installation cables as far away as possible from the original vehicle wiring as it may cause interference and noise in your audio system.
- Perform the installation in a firm, ventilated and dry place.
- Installation must be done by a qualified professional.
If you have questions , contact the store where the purchase or installation
was made. For more information please contact our
Customer Service: BR +55 18 2104-9412.
Input, output and audio controls
-
INPUT: Input of the signal to be amplified. Connect to the radio/player through high quality shielded RCA cables to prevent unwanted noise.
-
LEVEL: Signal level control in the amplifier input.
-
CROSSOVER:
• HIGH PASS FILTER (H.P.F.): This variable control allows you to select the initial frequency from 10Hz to 700Hz that will be reproduced by the amplifier.
• LOW PASS FILTER (L.P.F.): This variable control allows you to select the final frequency from 90Hz to 22KHz that will be reproduced by amplifier. -
BASS BOOST:
• BASS: Variable control for bass boost from 0 to + 12dB.
• FREQ: Variable control for BASS boost action from 30Hz to 60Hz.
4.1. MID BASS BOOST: Variable control from 0 to +12dB with bass boost at 270Hz.
4.2 MID HIGH BOOST: Variable control from 0 to +12dB with acting on boosting midrange at 2KHz frequency. -
FLAT KEY: This switch allows you to turn the FLAT mode on or off. Settings made on the CROSSOVER and BOOST controls will be turned off when using this mode.
Power input
6. COOLER: It provides cooling of the amplifier. Install in a cool place
without obstruction of air inlets and outlets.
7. OUTPUT CONNECTOR (SPEAKERS): MONO output of amplified signal for
speakers connection. Check the minimum impedance and polarities before
performing the installation.
8. POSITIVE POWER SUPLY CONNECTOR: Connect to the positive battery
terminal through a minimum 4 AWG cable with a fuse/circuit breaker (150A) as
close to the battery as possible.
9. REMOTE CONNECTOR (REM): Allows automatic activation of the amplifier
when turning on the radio/player. Connect to the remote output of the
radio/player mininum of 18 AWG.
10. NEGATIVE POWER SUPLY CONNECTOR: Connect to the negative terminal of
the battery using a cable minimum of 4 AWG .
Indicators LED
Smart protection system
In case of problems, the amplifier will turn off and the PROT LED will
flash.
Depending on the problem, the led will flash a certain number of times
indicating the cause of the problem, as shown in the table below:
| Problem: Short circuit or output overload.
Solution: Check that the speaker cables are well isolated. Verify the
minimum impedance supported.
---|---
| Problem:
Overheating
Solution: Verify that the amplifier is in a ventilated place or that the
coolers are not obstructed.
| Problem:
Low battery.
Solution: Battery consumption is normal when using the amplifier.
Recharge the battery.
| Problem:
Tension higher than allowed.
Solution: Verify the power supply/battery system.
Instalation
Specification of the cables for proper installation:
▪ Power connectors (positive/negative) …………………………………. 4 AWG
▪ Remote connector ……………………………………………………………. 18 AWG
▪ Output signal connectors (speakers) ………………………………….. .8 AWG
▪ Fuses or circuit breakers …………………………………………………….. 150A
The use of fuse or circuit breaker is mandatory to protect the system from
short circuit and overload. Install them as close to the battery as
possible.
Installation should only be done by qualified professionals with the product
turned OFF. 
Troubleshooting
AMPLIFIER DOES NOT TURN ON:
- Verify that the cables are connected correctly. Make sure all connections have electrical and mechanical contact.
- Fuses or circuit breakers may be defective or blown. Check the condition of the circuit breakers and if it is compatible with the equipment consumption.
- Verify that the battery charge is sufficient for the operation of the product.
NO SOUND:
- The cables of the speakers or RCA plugs may not be connected correctly or are defective.
- Verify that the LEVEL control is not at a minimum.
PROT LED FLASHING:
- Verify that the product vents are not blocked or the product is overheated.
- Speakers or cables shorted, check speakers, cables and connections.
SOUND DISTORTIONS:
- The speakers may be overloaded or defective, lower the level and remake the level adjustment. This setting can be adjusted as follows:
a) On the radio/player, place any musical signal and set the volume to 80% of the maximum (if the maximum volume of the radio /player is 45 (100%), set to 36 (80%).
b) On the amplifier, with LEVEL control at minimum, increase gradually until the LED CLIP starts to flash. Slowly return the LEVEL until the led goes out completely.
LACK OF BASS:
• Cables of the speakers may be reversed and (out-of-phase speakers).
NOISE AND FAILURE IN SOUND:
-
Verify that the installation is not close to the original vehicle wiring as they may cause interference and noise in the audio signal.
-
Make a separate power connection to the sound system. Use a fuse/ circuit breaker as close to the battery as possible for protection.
-
Make a good grounding of the amplifier. To do this, remove the paint from the vehicle chassis at the desired point. Screw the wire using a ground terminal.
To protect from oxidation, isolate with paint. -
Do not loop the ground. Avoid using multiple grounds. If possible, use a star connection, in which all the grounds run from a single point.
Any updates made in this manual will be available for costormers to consult
without any charge on the brand’s site. It is recommended that the updated
manual be consulted whenever needed.
Images contained in this manual are merely illustrative and may differ from
the actual product.
Technical specifications
| Minimum Output Impedance: | 1 OHM | 2 OHMs | 4 OHMs |
|---|---|---|---|
| Number of Channels | 1 | ||
| Power Ouput @ 14.4V: | 3350W RMS |
@ 1 Ohms
2100W RMS
@ 2 Ohms| 3700W RMS
@ 2 Ohms
2500W RMS
@ 4 Ohms| 3500W RMS
@ 4 Ohms
2300W RMS
@ 8 Ohms
Power Ouput @ 12.6V:| 3000W RMS
@ 1 Ohm
2000W RMS
@ 2 Ohms| 3000W RMS
@ 2 Ohms
2000W RMS
@ 4 Ohms| 3000W RMS
@ 4 Ohms
2000W RMS
@ 8 Ohms
Minimum Input Sensitivity:| 200mV
Signal to Noise Ratio:| > 90dB
Frequency Response (-3dB)| 10Hz ~ 20KHz
Crossover Low Pass:| 90Hz ~ 20KHz
Crossover High Pass:| 10Hz ~ 700Hz
Bass Boost:| Freq: 30Hz ~ 60 Hz
Boost: 0 ~ +12dB
Mid Bass (270Hz):| Boost: 0 ~ +12dB (270Hz)
Mid High (2KHz):| Boost: 0 ~ +12dB (2KHz)
Input Impedance:| 7K Ohms| 9.5K Ohms| 9.5K Ohms
Supply Voltage:| 9V ~ 16V
Musical Consumption:| 150A| 150A| 137A
BASS Consumption:| 300A| 300A| 275A
Dimensions (H x W x L):| 3.7” x 9.11” x 7.53”
Weight:| 5.07 lb
The
data measured are based on STETSOM laboratory equipment. Test reference in
frequency from 60hz to 1Khz with THD + N at ≤10% in impedances as indicated in
each measurement. The electronic components and the manufacturing process may
present manufacturing variations, thus leading to a variation in the
measurements made.
****Any updates made in this manual will be available for costormers to
consult without any charge on the brand’s site.
It is recommended that the updated manual be consulted whenever needed.
Images contained in this manual are merely illustrative and may differ from the actual product.
Warranty Term
STETSOM, through its network of Authorized Technical Assistance Providers, guarantees technical assistance to the purchaser of their products. The repairs of any defects duly established as being of the manufacturer will be done without cost for replacement components or parts and repair labor. The repairs will be done by the Authorized Technical Assistance Provider specially designated by STETSOM.
CONSULT THE LIST OF AUTHORIZED TECHNICAL ASSISTANCE PROVIDERS ON OUR WEBSITE:
www.stetsom.com.br/en/assistencias-tecnica
If you do not locate technical assistance in your city, please contact us at:
BR +55 18 2104-9412
WARRANTY CONDITIONS:
Our warranty is 1 (one) year against manufacturing defects. Its validity
starts on the date of the Sale to the FINAL Consumer.
To make use of the benefits of this warranty, you must present one of the
following documents: the Final Consumer’s SALE NOTE or this completed
CERTIFICATE.
CASES THAT VOID THE WARRANTY:
- 1 year after the issuance of the invoice of sale to the consumer or 1 year of completing certificate of warranty (dated and stamped by the retailer or installer) or 1 year from date of manufacture.
- Violation of seals, alteration or removal of the product’s serial or lot number.
- If the product suffers misuse, careless accidents involving: Water, Fire or Fall, or is installed in conditions contrary to the guidelines contained in the installation manual that accompanies the product.
- Damages and changes in the circuit or adaptation of non-original parts.
- If you use installation techniques contrary to those given in the manual.
QUESTIONS AND ADVICE:
STETSOM offers Customer Services to answer questions and give advice about
their products and services. Please contact us through the channels:
Phone: BR +55 18 2104-9412
E-mail: suporte@stetsom.com.br — Site:
www.stetsom.com
GUARANTEE CERTIFICATE
Serial number:
Date of purchase:| Month / Year of manufacture:
Reseller / Stamp:
References
- Stetsom - Stetsom
- Stetsom - Stetsom
- Assistências TécnicaTechnical AssistanceAsistencias Técnica - Stetsom
- Assistências TécnicaTechnical AssistanceAsistencias Técnica - Stetsom
- Assistências TécnicaTechnical AssistanceAsistencias Técnica - Stetsom
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