DEAF BONCE MLA-60.2 Two Channel Amplifiers Owner’s Manual
- June 13, 2024
- Deaf Bonce
Table of Contents
- INTRODUCTION
- SAFETY INSTRUCTIONS
- TYPICAL INSTALLATION SEQUENCE
- SELECTION OF THE DIAMETER OF POWER CABLES AND SPEAKER CABLES
- WIRING DIAGRAMS
- CONNECTION METHODS
- SPECIFICATIONS
- POSSIBLE FAULTS AND THEIR SOLUTIONS
- BOX CONTENTS
- WARRANTY PERIOD, AFTER-SALES SERVICE AND SERVICE LIFE INFORMATION
- INFORMATION ON DISPOSAL OF THE ELECTRICAL AND ELECTRONIC EQUIPMENT (FOR
- References
- Read User Manual Online (PDF format)
- Download This Manual (PDF format)
TWO-CHANNEL AMPLIFIERS
Owner’s Manual
CLASS D MLA-60.2 MLA-100.2 MLA-160.2
MACHETE SERIES
INTRODUCTION
Thank you for purchasing of this Deaf Bon ce product! Our company is committed to the creation of extremely loud sound systems with no loss of quality. To ensure proper use, please carefully read through this manual before using this product. It is especially important that you read and observe caution’s in this manual. Please keep the manual in a safe and accessible place for future reference.
SAFETY INSTRUCTIONS
- Make sure that your vehicle has a 12V DC electrical system with negative grounding. Before installing the amplifier in cars, trucks or buses, check the battery voltage.
- Check the state of on-board power supply of yourvehicle, the battery and the alternator. When the engine is running, depending on the ambient temperature, the voltage to be outputted by the alternator must be within the range of 14 to 14.7 V. Open circuit voltage (OCV) of the battery must be within the range of 12.5 to 13 V. Make sure that the rated current of the alternator and the battery capacity is enough to provide increased consumption. For example, for the power of the amplifier 1000 W, the rated current of the alternator is required at the rate of 1000 W/ 13 V = 77 amperes. A more powerful amplifier requires a more powerful altematoraswell as an additional battery.
- Do not place the amplifier in the engine compartment and also in the places exposed to water, moisture, dust or dirt
- Never stretch the cables outside of the car and near the moving parts of the car. This can lead to destruction of the insulating layer, shortcircuit and fire.
- The amplifier should be installed in areas of the car where the temperature varies from 0 °C (32 °F) to 55 °C (131 °F). The amplifier should be in a place with a good air circulation. The horizontal position of the amplifier is the best wayto install.
- During the operation the amplifier may be heated up to 80 °C (176 °F). Before you touch it, make sure it is not overheated that may bedangerous.
- To improve the cooling of the amplifier, it is recommended to dean periodically the heatsink from dust When cleaning the heatsink strong solvents should not be used as they may damage the amplifier. Do not use compressed air, because solids can penetrate inside the amplifier. Cleanings best donewith wet towels or cloth.
- Make sure that the location of the amplifier does notviolate the properoperation of mechanical and electrical devices of the vehicle.
- Make sure thatduring the installation and connection of thebattery, the powercables are not shorted.
- When performing plumbing, drilling or cutting works with the car, make sure that there is no wiring, brake lines, fuel pipe or other structural elements under the place of work. Follow the safety rules! Use protective glasses and gloves.
- To protect the wires use rubber gaskets if the wire passes through a hole in the plate, or other similar materials if it lies close to the partsexposed to heat
- Make sure that all the cables are fixed over the entire length. Also make sure that their outer protective shell is non-combustible. Usea clamping screw to secure the positiveand negativecables next to the appropriate terminals of the amplifier.
- Select a diameter of the power cable in accordance with the power of the amplifier and the recommendations provided here. Power cables are extremely important since they directly affect the system damping factor and sound quality. The cables to the battery must be in the coppercrimp terminals pressed with the help of a hydraulic press, and well fixed to the batteryterminals.
- To avoid accidental damage, keep the amplifier in its original packaging prior to installation.
- Use high-quality copper speaker and power cables.
CAUTION!!! High sound pressure can damage your health! Please use the common sense when controlling volume!
TYPICAL INSTALLATION SEQUENCE
- Before installing the amplifier disconnect the battery from the electrical system.
- To connect the amplifier it is necessary to stretch the power cable from the location of the battery to the place of installation of the amplifier. Select the power cable with the appropriate regulations in AWG (see Table: Selection of the diameter of the power cables)
- Connect the power supply with the correct polarity. Connect all (+) terminals of the amplifier to the cables stretching from the positive terminal of the battery and al I (-) terminals of the amplifier-to the cables stretching from the negative terminal of the battery.
- Place the fuse holder for each positive cable within 40 cm f rom the positive terminal of the battery and connect one end of the power cable to the holder after connecting the other end to the amplifier. Do not install the fuse(s).
- Route all signal cables next to each oth er and separately from the power cables.
- Connect the wi res of RCA input. The input signal power must be between 0.4V and 8 V.
- To connect the powerw ire supply is necessary to use special power cables.
- Fasten the amplifier properly when installing it in the vehiclelf the component is disconnected during driving, it may cause serious damage to the passengers of the vehicle or another vehicle. It is not recommended to screw the amplifier directly to the metal it can lead to distorsions at the signal outputs.
- After installation is complete, check the wiring of the system and make sure that all connections have been made correctly. Before installing the fuses, disconnect the positive lead from the battery and then install the fuse in the fuse holder. Using the light bulb 12 V 21 W, connect the positive lead to one contact of the bulb and the other contact of the bulb to the positive terminal of the battery. When properly connected the bulb must briefly light up and go out Now you may connect the positive lead to the (+) of the batterylf the light does not go out, then something i swrong. This will prevent damage to the amplifier in case of reverse polarity and unwanted sparks when connecting. Install the rest of the fuses.
- To activate the amplifier, it is necessary to apply the positive potential of 12 volts to the control input of the amplifier (REM IN) through a switch ora corresponding control output (REMOTE OUT) wi th the head unit (HU).
- LED indicator on front of the amplifier tums bl ue to indicate that the amplifier is turned on. If the indicator does not light up see chapter “Possible faults and their solu tions” for more i nformation.
- The sound level is calibrated by adjusting the volume of the source up to 3/4 of its maximum level. Then, adjust the sensitivity level of theamplifier up until you heardistortions.
SELECTION OF THE DIAMETER OF POWER CABLES AND SPEAKER CABLES
Selection of the diameter of the power cables
Selection of the diameter of the speaker cables
Use the table below to select the desired diameter based Use the table below
to select the desired diameter based on the length and the current
consumption.
on the length and the power consumption.
WIRING DIAGRAMS
Connect the speaker cables from the positive and negative terminals of the
speakers to the respective outputs of the amplifier terminal marked with CH1 /
CH2 SPEAKERS OUTPUTS, as shown at the diagram. To connect the power wire
supply it is necessary to use special power cables. The fuse is placed in the
holder and fixed in the cable cut. One end of the cable is connected to the
positive terminal of the battery, the second one — to the amplifier terminals
marked with +12V. Be sure to use a fuse with the parameters sufficient for use
in the system. The length and diameter of the grounding cable must conform to
the length and diameter of the cable +12V. Connect one end to the negative
terminal of the battery and the other end of the grounding cable to the
terminals marked with GND. Connect the head unit (HU) to low-level inputs of
the amplifier using RCA cable.
Standard wiring diagram of two-channel amplifier to two speakers.
Step 1. Connect the speaker cable from (+) terminal of the amplifier to (+)
terminal of the speaker.
Step 2. Connect the speaker cable from (-) terminal of the amplifier to (-)
terminal of the speaker.
Step 3. Repeat the installation sequence Step 1 and Step 2 for each speaker.
Caution!!! The minimum permissible connection load impedance at every
single channel is 2 Ohm.
For models MLA-60.2, MLA-100.2, MLA-160.2 the operating voltage is 9-15V.
Standard wiring diagram of two-channel amplifier to one subwoofer
Step 1. Connect the speaker cable from (+) terminal of the amplifier to (+)
terminal of the subwoofer.
Step 2. Connect the speaker cable from (-) terminal of the amplifier to (-)
terminal of the subwoofer.
Caution!!! The minimum permissible connection load impedance for bridged
connection is 4 Ohm.
For models MLA-60.2, MLA-100.2, MLA-160.2 the operating voltage is 9-15 V.
Standard wiring diagram of two-channel amplifier to battery
Step 1. Connect one end of the power cable from (+) terminal of the battery
and the second end to the amplifier terminal marked with +12V. Do not forget to
protect positive power cable with appropriate fuse.
Step 2. Connect one end of the power cable from (-) terminal of the battery
and the second end of the grounding cable to the terminals marked with GND.
Step 3. Connect one end of the cable to the Remote output terminal at the HU
and the second end to the amplifier terminal marked with REM IN.
Standard wiring diagram of two-channel amplifier to Head Unit
Step 1. Connect one end of the RCA cable to the RCA output terminals at the HU
and the second end to the amplifier RCA inputs terminals marked with INPUT.
Application of connector and control
- INPUT – signal input, RCA jacks
- GAIN – input signal level adjustment
- CROSSOVER – selection of built-in filters operating mode (HPF, FLAT, LPF)
- FREQ – high pass or low pass filter frequency adjustment (40-400Hz at 12 dB/Oct)
- POWER / PROTECT – LED for operation (blue) / LED for protection (red)
- SPEAKERS OUTPUTS – speakers connection terminals
- +12V – power supply terminal (+12V)
- REM IN – connector of remote activation of the amplifier
- GND – grounding supply terminal «-».
CONNECTION METHODS
The minimum permissible load impedance at the single channel is 2 Ohm, in
bridged mode 4 Ohm.
SPEAKERS WIRING DIAGRAMS
In any case do not expose the amplifier to the loads lower than specified by
the manufacturer. Use these schematics to calculate load impedance of
different connection types.
Serial connection of the speakers
| Voice coil | Total impedance |
|---|---|
| 4 Ohm | 8 Ohm |
| 8 Ohm | 16 Ohm |
| Voice coil | Total impedance |
|---|---|
| 4 Ohm | 12 Ohm |
| 8 Ohm | 24 Ohm |
| Voice coil | Total impedance |
| --- | --- |
| 4 Ohm | 16 Ohm |
| 8 Ohm | 32 Ohm |
parallel connection of the speaker
| Voice coil | Total impedance |
|---|---|
| 4 Ohm | 2 Ohm |
| 8 Ohm | 4 Ohm |
| Voice coil | Total impedance |
| 4 Ohm | 1.33 Ohm |
| 8 Ohm | 2.66 Ohm |
| Voice coil | Total impedance |
| 4 Ohm | 1 Ohm |
| 8 Ohm | 2 Ohm |
mixeed connection of the speaker
| Voice coil | Total impedance |
|---|---|
| 4 Ohm | 4 Ohm |
| 8 Ohm | 8 Ohm |
CAUTION!!! High sound pressure can damage your health! Please use the common
sense when controlling volume!
SUBWOOFERS WIRING DIAGRAMS
The minimum permissible load impedance at the single channel is 2 ohm, in
bridged mode 4 ohm. Use these formulas to calculate the load impedance of
various types of connections.
Serial connection
Total impedance = ()Sub 1 + ()Sub 2 + ilSub 3…
Parallel connection
SCHEMES OF ENABLING THE LOAD
OF THE SUBWOOFER
In any case do not expose the amplifier to the loads lower than specified by
the manufacturer. Use these schematics to calculate load impedance of
different connection types.
Voice coils 1+1,2+2,4+4 Ohm
The subwoofer has voice coil D1, D2 or D4.
Subwoofers in seris, coils in series
Subwoofers in parallel ,colils in series
| Voice coil | Total impedance |
|---|---|
| 1+1 Ohm | 1 Ohm |
| 2+ 2Ohm | 2 Ohm |
| 4+4 Ohm | 4 Ohm |
SPECIFICATIONS
| Model | M LA-60.2 | MLA-100.2 | MLA-160.2 |
|---|---|---|---|
| Power RMS 4 Ohm* (W) | 60 x 2 | 100 x 2 | 160 x 2 |
| Power RMS 2 Ohm* (W) | 90 x 2 | 150 x 2 | 230 x 2 |
| Power RMS 4 Ohm bridged mode* (W) | 180 x 1 | 300 x 1 | 460 x 1 |
| High pass filter (Hz) | 40 – 400 | 40 – 400 | 40 – 400 |
| Low pass filter (Hz) | 40 – 400 | 40 – 400 | 40 – 400 |
| Crossover (dB/Oct) | 12 | 12 | 12 |
| Bass level adjustment (dB at 45 Hz) | – | – | – |
| Frequency response (Hz) | 20 – 20 000 | 20 – 20 000 | 20 – 20 000 |
| Input sensitivity (V) | 0.4 – 8 | 0.4 – 8 | 0.4 – 8 |
| Signal to noise ratio (dB) | 85 | 85 | 85 |
| Damping factor | 180 | 180 | 180 |
| Integrated Fuse (Yes/No) | No | No | No |
| Input terminal connection (AWG/ mm2) | 4 / 21.2 | 4 / 21.2 | 4 / 21.2 |
| Output terminal connection (AWG/ mm2) | 8/8/37 | 8/8/37 | 8/8/37 |
| Working voltage (V) | 9-15 | 9-15 | 9-15 |
| The simultaneous operation of LPF and HPF | No | No | No |
| Minimum permissible load impedance on the single channel (Ohm) | 2 | 2 | 2 |
| Minimum permissible load impedance in bridged mode (Ohm) | 4 | 4 | |
| Size (LxWxH), mm | 132 x 111 x 43.6 | 142 x 111 x 43.6 | 162 x 111 x 43.6 |
*RMS Power at 14.4 V, THD 1%
POSSIBLE FAULTS AND THEIR SOLUTIONS
Deaf Bonce amplifiers are high-quality and technically perfect products. The problems often arise due to improper use, faulty connection of components or lack of power supply of the on-board network.
- The amplifier does not turn on. Problem solution: Check all the contacts and the presence of 9-15 Vat the amplifier terminals. Check whether the control input of the amplifier “REM I N” receives the positive potential of +12 V.
- Power turns on, but goes into protection (protection indicator lights up) Problem solution: Check if there is a short circuit (fault) on the amplifier output which is connected to the speakers or subwoofers. Make sure that commutation of the voice coils of the subwoofer is correct. The rated impedance of the voice coils should not be lower than the permissible rated load impedance of the amplifier. Check the supply voltage of the amplifier. It must be within the range of 9-15 V.
- The amplifier turns on but at a high volume it goes in to protection. Problem solution: The amplifier may lack power. Make sure that the rated current of the alternator and the battery capacity is enough to power this amplifier. Check the amplifier for overheating. Check the load impedance.
- The amplifier is turned on, but there is no sound from the speakers or subwoofer. Problem solution: Check the connection of the amplifier, the integrity of the interconnecting cable, HU, the speakers or the subwoofer.
BOX CONTENTS
- Amplifier – 1 pc.
- Owner’s manual – 1 pc.
- Warranty card – 1 pc.
- Mounting кit – 1 pc .
WARRANTY PERIOD, AFTER-SALES SERVICE AND SERVICE LIFE INFORMATION
Each Deaf Bonce product is warranted to be free from defects in materials and
workmanship under normal use and service.
The warranty period for the product is 12 (twelve) months from the date on
which the product is transferred to the consumer (this date shall be deemed to
be the date on which the consumer starts using the product).
During the warranty period, defective parts will be repaired or replaced at
the discretion of the manufacturer provided that there are grounds for doing
so under the laws of the consumer’s country. The defective product must be
returned to the dealer from whom it was purchased together with the duly filled
out warranty certificate, complete, with original packaging.
Our company shall not be liable for any damage caused by transportation. Our
company shall not be liable for any expenses or lost profits arising out of or
in connection with the use or inability to use the product or any other
incidental or indirect costs, expenses, or damages incurred by the customer.
The warranty is valid in accordance with the laws currently in force. For more
information, please visit our company website and refer to the warranty card.
The manufacturer reserves the right to change the design and specification of
the product without prior notice.
The service life of the product is 12 (twelve) months from the date on which
the product is transferred to the consumer (this date shall be deemed to be
the date on which the consumer starts using the product).
The product or any part (component) of the product must not be used in any way
(including, but not limited to use for intended or any other purpose,
transportation, storage, modification/alteration/improvement/upgrade) after the
expiry of the service life.
At the end of its service life, the product must be disposed of.
INFORMATION ON DISPOSAL OF THE ELECTRICAL AND ELECTRONIC EQUIPMENT (FOR
THE EUROPEAN COUNTRIES WITH SEPARATE W ASTE COLLECTION)
Items marked “crisscrossed wheeled bin” are not allowed to be disposed of together with usual household waste. These electrical and electronic products should be disposed of in special reception centers, equipped for recycling suchproducts and components. For information about the location of the nearest disposal / recycling spot and the rules of delivery of waste please contact your local municipal office. Recycling and proper disposal helps to protect the environment and prevent harmful effects on health.
Manufacturer: Ningbo Sound Solution I&E Trading Co., Ltd Made in China
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https://deafbonce.com/amplifiers/machete-mla-60-2|
https://deafbonce.com/amplifiers/machete-mla-100-2|
https://deafbonce.com/amplifiers/machete-mla-160-2