STETSOM Bravo HQ800.4 4 Channel Amplifier User Manual

Unlimited Power


USER MANUAL

Introduction

Thank you so much for choosing a Stetson 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.

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 need 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: +55 18 2104 9412.

Audio input

1. RCA INPUT CONNECTIONS: RCA double connections with 4 independent channels (CH1 and CH2 / CH3 and CH4) identified on the product. Connect to radio/player outputs via quality shielded RCA cables to prevent unwanted noise.
2. HIGH INPUT CONNECTIONS: Use this connection when the radio/player does not have RCA outputs. Each connector has 2 independent channels (CH1 and CH2 / CH3 and CH4) identified on the amplifier. Check the radio/player amplified output signals before making connections. For remote amplifier activation, use its REM connection.

Using the RCA input and HIGH INPUT connections at the same time can cause unwanted noise and amplifier problems.

Audio controls
3 . LEVEL : This allows you to adjust the signal level that will be sent to the speakers. Use this control to equalize the music volume played through the speakers. 

4. VARIABLE CROSSOVER:
Allows adjustment of the crossover cut-off range, variable from 50Hz to 2.3KHz.
These controls operate in conjunction with the crossover switches, allowing cutoff adjustment on the selected switch (H.P.F. or L.P.F.).
5. CROSSOVER SWITCHES:
The amplifier has two selection switches with a frequency cut-off function. The cut-off adjustment should be made through the variable crossover controls. Each switch acts
on two channels at the same time (CH1 and CH2 / CH3 and CH4).

| HPF: This filter cuts off frequencies lower than the one selected in the crossover control (50Hz to 2.3KHz).
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FLAT: It does not apply any filters, allowing reproduction of all frequencies supported by the amplifier.
LPF: This filter cuts off frequencies higher than the one selected in the crossover control (50Hz to 2.3KHz). The filter has a gain of +12dB at the selected frequencies.

6. COOLER: Its operation is automatic and variable, optimizing the amplifier’s ventilation.
Make the installation in a ventilated place, without obstruction in the air inlets and outlets.

Speakers output

7. SPEAKERS CONNECTOR:
Amplified audio outputs for speaker connection. Check the speaker polarity and minimum impedance supported by the amplifier outputs before performing the installation.

Power supply

8. POSITIVE CONNECTOR: Connect to the battery’s positive terminal via a cable of at least 6 AWG with a fuse (40A) as close to the battery as possible. 9. CONNECTOR FOR REMOTE
ACTIVATION (REM): Allows automatic activation of the amplifier when turning on the radio/player. Connect to the REMOTE output of the radio/player via a minimum
18 AWG cable.
10. NEGATIVE CONNECTOR: Connect to the negative battery terminal via a minimum 6 AWG cable.

LED indicator

POWER (blue light): Indicates the amplifier is operating when lit.

CAR AUDIO PROT (red light) : Indicates that the amplifier detected faults and entered protection mode. Check the protection table for possible failure and turn the amplifier back on.
Smart protection system
When the protection system detects a fault, the amplifier will shut down and the PROT LED (RED) will flash. For each type of fault, the LED will flash a certain number of times repeatedly indicating the cause, according to the protection table:

| Diagnostic: Short circuit or output overload.
Solution: Check that the speaker cables are well insulated and that the output impedance doesn’t exceed that supported by the amplifier.
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| Diagnostic: Excessive temperature. When the amplifier reaches approximately 194°F,
audio is stopped and the coolers run at maximum speed to speed up the cooling process of the internal components.
Solution: Check if the amplifier is in a ventilated place or if the coolers are not obstructed. Keep the amplifier turned on for a few minutes for the coolers to assist in the cooling process.
| Diagnostic: Supply voltage less than 9V.
Solution: Check the voltage of the battery or power supply.
| Diagnostic: Supply voltage greater than 17V.
Solution: Check the voltage of the battery or power supply.

Installation

Specification of the cables and fuse for proper installation:

• Power connectors (positive/negative) ………………………………………………………….. 6 AWG
• Remote connectors (REM) ……………………………………………………………………………… ..18 AWG
• Output signal connectors (speakers) ………………………………………………………….. .13 AWG
• Fuse ………………………………………………………………………………………………………………. .40A
• Installation must be done only by qualified professionals with the product turned OFF.
• 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.

HIGH INPUT diagram

Use the RCA and HIGH INPUT connections at the same time can cause unwanted noise and amplifier problems.

Speakers installation

SPEAKERS
13 AWG cables
Check the minimum impedance
supported by the amplifier.
Use example:
4 x SPEAKERS 2 OHMS
2 x SPEAKERS 2 OHMS +
1 x SUBWOOFER 4 OHMS (BRIDGE)
2 x SUBWOOFER 4 OHMS (BRIDGE)

Troubleshooting

AMPLIFIER DOESN’T 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 connections 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:

• Speakers may be overloaded or defective, turn down and re-adjust the LEVEL. This setting can be adjusted as follows:
  a) On the radio/player, put any musical signal and set the volume to 80% of the maximum (if the maximum volume of the radio/player is 45 (100%), set it to 36 (80%).
  b) On the amplifier, with the LEVEL control at a minimum, gradually increase it until you hear distortion in the speakers. Slowly return the LEVEL until you notice that there is no more distortion in the audio.

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 customers 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

4 x 170W RMS @ 4 Ohms
2 x 500W RMS @ 4 Ohms (BRIDGE MODE)
Power output  @ 12.6V:| 4 x 200W RMS @ 2 Ohms
4 x 130W RMS @ 4 Ohms
2 x 400W RMS @ 4 Ohms (BRIDGE MODE)
Minimum input sensitivity:| RCA: 250mV / HIGH INPUT: 1.5V
Signal to noise ratio:| >80dB
Frequency response (-3dB):| 5Hz ~ 22KHz
Crossover Low Pass:| 50Hz ~ 2,3K (Variable)
Crossover High Pass:| 50Hz ~ 2,3K (Variable)
Boost:| +12dB (with a switch in L.P.F)
Input impedance:| RCA: 18KOhms / HIGH INPUT: 1KOhms
Supply voltage:| 9V ~ 17V DC
Musical consumption:| 43A
BASS consumption:| 86A
Dimensions (H x W x L):| 2.3” x 6.5” x 9.3”
Weight:| 3.3 lb

The data measured are based on STETSOM laboratory equipment. Test reference in frequency from 60hz to 1Khz with THD + N at ≤1% 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.

Warranty Term

STETSON, 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 STETSON.
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. 1 year after the issuance of the invoice of sale to the consumer or 1 year of completing a certificate of warranty (dated and stamped by the retailer or installer) or 1 year from the date of manufacture.
2. Violation of seals, alteration or removal of the product’s serial or lot number.
3. 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.
4. Damages and changes in the circuit or adaptation of non-original parts.
5. If you use installation techniques contrary to those given in the manual.

QUESTIONS AND ADVICE:
STETSON 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

Statement of conformity
EUROPE – Declaration of Conformity < EU-DoC >
Hereby, STETSON INDUSTRIA ELETRÔNICA LTDA declares that this equipment type is in compliance with Directive 2014/30/EU. The full text of the EU declaration of conformity is available at the following internet address:

2 OHMS| MODEL: HQ800.4 (2Ω)
Voltage Supply: 9V – 17V DC
Current Range: 1A – 86A
MADE IN BRAZIL
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www.stetsom.com.br/certifications/
bravo-full_2000_1ohm_eu-doc.pdf

Waste Electrical and Electronic Equipment (WEEE)
The European Union (EU) WEEE Directive (2002/96/EC) places an obligation on producers (manufacturers, distributors, and/or retailers) to take back electronic products at the end of their useful life. The WEEE Directive covers most HME products being sold into the EU as of August 13, 2005. Manufacturers, distributors, and retailers are obliged to finance the costs of recovery from municipal collection points, reuse, and recycling of specified percentages per the WEEE requirements.
Instructions for Disposal of WEEE by Users in the European Union
The symbol shown below is on the product or on its packaging which indicates that this product was put on the market after August 13, 2005 and must not be disposed of with other waste. Instead, it is the user’s responsibility to dispose of the user’s waste equipment by handing it over to a designated collection point for the recycling of WEEE. The separate collection and recycling of waste equipment at the time of disposal will
help to conserve natural resources and ensure that it is recycled in a manner that protects human health and the environment. For more information about where you can drop off your waste equipment for recycling, please contact your local authority, your household waste disposal service or the seller from whom you purchased the product.
Guarantee certificate
Serie:………..
Date of purchase:………………
Month / Year of manufacture:……………
Reseller / Stamp:…………………….

STETSOMBRASIL
GRUPOSTETSOM
STETSOMBRASIL

www.STETSOM.com.br
R1

References

• Stetsom - Stetsom
• Stetsom - Stetsom
• Assistências TécnicaTechnical AssistanceAsistencias Técnica - Stetsom
• Assistências TécnicaTechnical AssistanceAsistencias Técnica - Stetsom
• Assistências TécnicaTechnical AssistanceAsistencias Técnica - Stetsom

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