Deaf Bonce Apocalypse ATOM PRO Series Amplifiers
Owner's Manual
Two-Channel Amplifiers
1. Introduction
Thank you for purchasing this Deaf Bonce product! Our company is committed to creating 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 cautions in this manual. Please keep the manual in a safe and accessible place for future reference.
2. Safety Instructions
- Ensure your vehicle has a 12V DC electrical system with negative grounding. Check battery voltage before installing the amplifier in cars, trucks, or buses.
- Check the vehicle's on-board power supply, battery, and alternator. With the engine running, the alternator output voltage should be between 14V and 14.7V. The battery's open circuit voltage (OCV) should be between 12.5V and 13V. Ensure the alternator's rated current and battery capacity are sufficient for increased consumption. For a 1000W amplifier, a 77-ampere alternator is required. More powerful amplifiers need more powerful alternators and additional batteries.
- Do not place the amplifier in the engine compartment or in areas exposed to water, moisture, dust, or dirt.
- Never run cables outside the car or near moving parts, as this can damage insulation, cause short circuits, and lead to fire.
- Install the amplifier in areas where the temperature ranges from 0°C (32°F) to 55°C (131°F). Ensure good air circulation. Horizontal installation is recommended.
- The amplifier may heat up to 80°C (176°F) during operation. Ensure it is not overheated before touching.
- Periodically clean the heatsink from dust to improve cooling. Do not use strong solvents or compressed air. Clean with damp towels or cloth.
- Ensure the amplifier's location does not interfere with the vehicle's mechanical or electrical devices.
- Ensure power cables are not short-circuited during battery installation and connection.
- When performing drilling or cutting, ensure no wiring, brake lines, fuel pipes, or other structural elements are present. Follow safety rules and use protective glasses and gloves.
- Use rubber gaskets to protect wires passing through holes in plates, or similar materials if wires are near heat-exposed parts.
- Secure all cables along their entire length. Ensure their outer protective shell is non-combustible. Use clamping screws to secure positive and negative cables to the amplifier terminals.
- Select power cable diameter according to amplifier power and recommendations. Use copper crimp terminals pressed with a hydraulic press and securely fixed to the battery terminals.
- Keep the amplifier in its original packaging prior to installation to avoid accidental damage.
- Use high-quality copper speaker and power cables.
CAUTION! High sound pressure can damage your health! Please use common sense when controlling volume!
3. Typical Installation Sequence
- Before installing, disconnect the battery from the electrical system.
- Run the power cable from the battery to the amplifier's installation location. Select the power cable with appropriate AWG rating (see Table: Selection of the diameter of the power cables).
- Connect the power supply with correct polarity. Connect all (+) amplifier terminals to cables from the positive battery terminal and all (-) terminals to cables from the negative battery terminal.
- Place the fuse holder for each positive cable within 40 cm from the positive battery terminal. Connect one end of the power cable to the holder and the other end to the amplifier. Do not install the fuse(s) yet.
- Route all signal cables together and separately from power cables.
- Connect RCA input wires. The input signal power should be between 0.2V and 6V.
- Use special power cables for power wire supply.
- Fasten the amplifier securely in the vehicle. Disconnected components can cause serious damage. Avoid screwing the amplifier directly to metal to prevent signal distortions.
- After installation, check all wiring. Before installing fuses, disconnect the positive battery lead. Use a 12V 21W bulb to connect the positive lead to one contact of the bulb and the other contact to the positive battery terminal. If the bulb briefly lights up and goes out, the connection is correct. If it stays lit, there is an issue. This prevents damage from reverse polarity or sparks. Install the remaining fuses.
- To activate the amplifier, apply a +12V potential to the control input (REM IN) via a switch or the head unit's (HU) remote output (REMOTE OUT).
- The front panel LED indicator will turn blue when the amplifier is on. If it does not light up, refer to the "Possible faults and their solutions" section.
- Calibrate sound level by setting the source volume to 3/4 of maximum. Then, adjust the amplifier's sensitivity level until distortions are heard.
4. Selection of the Diameter of Power Cables and Speaker Cables
Selection of the diameter of the power cables
Use the table below to select the desired diameter based on the length and the current consumption.
| Consumption current (A) | Diameter A.W.G mm² |
|---|---|
| 240-350 | 1/0 53,5 |
| 180-240 | 2 33,6 |
| 150-180 | 4 21,2 |
| 120-150 | 8 8,4 |
| 100-120 | 10 5,3 |
| 80-100 | 12 3,3 |
| 60-80 | 14 2,1 |
| 40-60 | 16 1,3 |
| 20-40 | 18 0,8 |
| 8-20 | |
| 0-8 |
Cable length (m): 0-1, 1-2, 2-3, 3-4, 4-5, 5-6, 6-7, 7-8
Selection of the diameter of the speaker cables
Use the table below to select the desired diameter based on the length and the power consumption.
| Power consumption (W) | Size A.W.G mm² |
|---|---|
| 25 000 | 5 16,8 |
| 20 000 | 8 8,37 |
| 15 000 | 10 5,26 |
| 10 000 | 14 2,08 |
| 8000 | |
| 6000 | |
| 4000 | |
| 2000 | |
| 1000 | |
| 500 | |
| 250 | |
| 100 |
Cable length (m): 0-1, 1-2, 2-3, 3-4, 4-5, 5-6, 6-7, 7-8
5. Wiring Diagrams
Connect speaker cables from the positive and negative terminals of the speakers to the respective outputs of the amplifier terminal marked CH1 / CH2 SPEAKERS OUTPUTS. Use special power cables for power supply. The fuse is placed in the holder and fixed in the cable cut. One end of the cable connects to the positive terminal of the battery, the second one to the amplifier terminals marked with +12V. Ensure the fuse parameters are sufficient for the system. The length and diameter of the grounding cable must conform to the +12V cable. Connect one end to the negative battery terminal and the other end to the GND terminals. Connect the head unit (HU) to the amplifier's low-level inputs using an RCA cable.
Standard wiring diagram of two-channel amplifier to two speakers
Step 1. Connect the speaker cable from the (+) terminal of the amplifier to the (+) terminal of the speaker.
Step 2. Connect the speaker cable from the (-) terminal of the amplifier to the (-) terminal of the speaker.
Step 3. Repeat the installation sequence for each speaker.
Caution!!! The minimum permissible connection load impedance at every single channel is 1 Ohm. For models Atom 500.2 Pro, Atom 700.2 Pro, Atom 900.2 Pro, the operating voltage is 9-15V.
Standard wiring diagram of two-channel amplifier to one subwoofer
Step 1. Connect the speaker cable from the (+) terminal of the amplifier to the (+) terminal of the subwoofer.
Step 2. Connect the speaker cable from the (-) terminal of the amplifier to the (-) terminal of the subwoofer.
Caution!!! The minimum permissible connection load impedance for bridged connection is 2 Ohm. For models Atom 500.2 Pro, Atom 700.2 Pro, Atom 900.2 Pro, the operating voltage is 9-15V.
Standard wiring diagram of two-channel amplifier to battery
Step 1. Connect one end of the power cable from the (+) terminal of the battery and the second end to the amplifier terminal marked +12V. Protect the positive power cable with an appropriate fuse.
Step 2. Connect one end of the power cable from the (-) terminal of the battery and the second end of the grounding cable to the terminals marked 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 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 input terminals marked INPUT.
6. Application of Connectors and Controls
1. HIGH-INPUT – high-level signal input terminals
2. INPUT – signal input, RCA jacks
3. GAIN – input signal level adjustment (0.2 - 6V)
4. FREQ – high pass or low pass filter frequency adjustment (50 Hz - 12 kHz at 12 dB/Oct)
5. CROSSOVER – selection of built-in filters operating mode (LPF, FLAT, HPF)
6. BASS BOOST – bass level adjustment (0 - 12 dB at 45 Hz)
7. POWER / PROTECT – LED for operation (blue) / LED for protection (red)
8. SPEAKERS OUTPUTS – speakers connection terminals
9. +12V – power supply terminal (+12V)
10. REM IN – connector of remote activation of the amplifier
11. GND – grounding supply terminal «-»
7. Connection Methods
The minimum permissible load impedance at the single channel is 1 Ohm, in bridged mode 2 Ohm.
Speakers Wiring Diagrams
Do not expose the amplifier to 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 |
Parallel connection of the speakers
| Voice coil | Total impedance |
|---|---|
| 4 Ohm | 12 Ohm |
| 8 Ohm | 24 Ohm |
| 4 Ohm | 16 Ohm |
| 8 Ohm | 32 Ohm |
| 4 Ohm | 2 Ohm |
| 8 Ohm | 4 Ohm |
| 4 Ohm | 1.33 Ohm |
| 8 Ohm | 2.66 Ohm |
| 4 Ohm | 1 Ohm |
| 8 Ohm | 2 Ohm |
Mixed connection of the speakers
| Voice coil | Total impedance |
|---|---|
| 4 Ohm | 4 Ohm |
| 8 Ohm | 8 Ohm |
CAUTION!!! High sound pressure can damage your health! Please use common sense when controlling volume!
Subwoofers Wiring Diagrams
The minimum permissible load impedance at the single channel is 1 Ohm, in bridged mode 2 Ohm. Use these formulas to calculate the load impedance of various types of connections.
Serial connection
Total impedance = ΩSub 1 + ΩSub 2 + ΩSub3...
Parallel connection
Total impedance = 1 / (1/ΩSub 1 + 1/ΩSub 2 + 1/ΩSub 3...)
Schemes of enabling the load of the subwoofer
Do not expose the amplifier to 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.
One subwoofer, coils in series
| Voice coils | Total impedance |
|---|---|
| 1+1 Ohm | 2 Ohm |
| 2+2 Ohm | 4 Ohm |
| 4+4 Ohm | 8 Ohm |
One subwoofer, coils in parallel
| Voice coils | Total impedance |
|---|---|
| 1+1 Ohm | 0.5 Ohm |
| 2+2 Ohm | 1 Ohm |
| 4+4 Ohm | 2 Ohm |
Subwoofers in series, coils in parallel
| Voice coils | Total impedance |
|---|---|
| 1+1 Ohm | 1 Ohm |
| 2+2 Ohm | 2 Ohm |
| 4+4 Ohm | 4 Ohm |
Subwoofers in series, coils in series
| Voice coils | Total impedance |
|---|---|
| 1+1 Ohm | 1.5 Ohm |
| 2+2 Ohm | 3 Ohm |
| 4+4 Ohm | 6 Ohm |
| 1+1 Ohm | 2 Ohm |
| 2+2 Ohm | 4 Ohm |
| 4+4 Ohm | 8 Ohm |
| 1+1 Ohm | 4 Ohm |
| 2+2 Ohm | 8 Ohm |
| 4+4 Ohm | 16 Ohm |
| 1+1 Ohm | 6 Ohm |
| 2+2 Ohm | 12 Ohm |
| 4+4 Ohm | 24 Ohm |
| 1+1 Ohm | 8 Ohm |
| 2+2 Ohm | 16 Ohm |
| 4+4 Ohm | 32 Ohm |
Subwoofers in parallel, coils in series
| Voice coils | Total impedance |
|---|---|
| 1+1 Ohm | 1 Ohm |
| 2+2 Ohm | 2 Ohm |
| 4+4 Ohm | 4 Ohm |
CAUTION!!! High sound pressure can damage your health! Please use common sense when controlling volume!
Schemes of enabling the load of the subwoofer
Do not expose the amplifier to loads lower than specified by the manufacturer. Use these schematics to calculate load impedance of different connection types.
Subwoofers in parallel, coils in parallel
| Voice coils | Total impedance |
|---|---|
| 1+1 Ohm | 0.66 Ohm |
| 2+2 Ohm | 1.33 Ohm |
| 4+4 Ohm | 2.66 Ohm |
| 1+1 Ohm | 0.5 Ohm |
| 2+2 Ohm | 1 Ohm |
| 4+4 Ohm | 2 Ohm |
| 1+1 Ohm | 0.25 Ohm |
| 2+2 Ohm | 0.5 Ohm |
| 4+4 Ohm | 1 Ohm |
| 1+1 Ohm | 0.16 Ohm |
| 2+2 Ohm | 0.33 Ohm |
| 4+4 Ohm | 0.66 Ohm |
| 1+1 Ohm | 0.125 Ohm |
| 2+2 Ohm | 0.25 Ohm |
| 4+4 Ohm | 0.5 Ohm |
CAUTION!!! High sound pressure can damage your health! Please use common sense when controlling volume!
8. Specifications
| Model | Atom 500.2 Pro | Atom 700.2 Pro | Atom 900.2 Pro |
|---|---|---|---|
| Power RMS 4 Ohm* (W) | 231 x 2 | 230 x 2 | 350 x 2 |
| Power RMS 2 Ohm* (W) | 390 x 2 | 480 x 2 | 510 x 2 |
| Power RMS 1 Ohm* (W) | 500 x 2 | 700 x 2 | 900 x 2 |
| Power RMS 4 Ohm bridged mode* (W) | 780 x 1 | 960 x 1 | 1020 x 1 |
| Power RMS 2 Ohm bridged mode* (W) | 1000 x 1 | 1400 x 1 | 1800 x 1 |
| High pass filter (Hz) | 50 - 12 000 | 50 - 12 000 | 50 - 12 000 |
| Low pass filter (Hz) | 50 - 12 000 | 50 - 12 000 | 50 - 12 000 |
| Crossover (dB/Oct) | 12 | 12 | 12 |
| Bass level adjustment (dB at 45 Hz) | 0 - 12 | 0 - 12 | 0 - 12 |
| Frequency response (Hz) | 10 - 20 000 | 10 - 20 000 | 10 - 20 000 |
| Input sensitivity (V) | 0.2 - 6 | 0.2 - 6 | 0.2 - 6 |
| Signal to noise ratio (dB) | 82 | 82 | 82 |
| Damping factor | 158 | 159 | 160 |
| 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) | 10 / 5.27 | 10 / 5.27 | 10 / 5.27 |
| 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) | 1 | 1 | 1 |
| Minimum permissible load impedance in bridged mode (Ohm) | 2 | 2 | 2 |
| Size (LxWxH), mm | 196 x 140 x 54 | 225 x 140 x 54 | 265 x 140 x 54 |
| Size (LxWxH), inch | 7.71 x 5.51x 2.12 | 8.85 x 5.51 x 2.12 | 10.43 x 5.51 x 2.12 |
| *RMS Power at 14.4 V, THD 1% | |||
9. Possible Faults and Their Solutions
Deaf Bonce amplifiers are high-quality and technically perfect products. Problems often arise due to improper use, faulty connection of components, or lack of power supply.
- The amplifier does not turn on.
Solution: Check all contacts and the presence of 9-15V at the amplifier terminals. Verify that the control input "REM IN" receives a +12V potential. - Power turns on, but goes into protection (protection indicator lights up).
Solution: Check for a short circuit on the amplifier output connected to speakers or subwoofers. Ensure correct commutation of subwoofer voice coils. The rated impedance of the voice coils should not be lower than the amplifier's permissible load impedance. Check the amplifier's supply voltage (must be within 9-15V). - The amplifier turns on but goes into protection at high volume.
Solution: The amplifier may lack power. Ensure the alternator's rated current and battery capacity are sufficient. Check the amplifier for overheating and the load impedance. - The amplifier is turned on, but there is no sound from the speakers or subwoofer.
Solution: Check amplifier connections, the integrity of the interconnecting cable, the head unit, speakers, or subwoofer.
10. Box Contents
- Amplifier - 1 pc.
- Owner's manual - 1 pc.
- Warranty card - 1 pc.
- Mounting kit - 1 pc.
11. 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 is 12 months from the date the product is transferred to the consumer. During the warranty period, defective parts will be repaired or replaced at the manufacturer's discretion, provided there are grounds under the consumer's country laws. The defective product must be returned to the dealer with the duly filled warranty certificate, complete with original packaging.
Deaf Bonce is not liable for damage caused by transportation, or for expenses or lost profits arising from 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 according to current laws. For more information, visit the company website and refer to the warranty card.
The manufacturer reserves the right to change the product's design and specifications without prior notice. The service life of the product is 12 months from the date the product is transferred to the consumer. The product or any part thereof 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.
12. Information on Disposal of Electrical and Electronic Equipment (for European Countries with Separate Waste Collection)
Items marked with a "crisscrossed wheeled bin" symbol should not be disposed of with regular household waste. These electrical and electronic products should be disposed of at special reception centers equipped for recycling such products and components. For information about the location of the nearest disposal/recycling spot and the rules for waste delivery, please contact your local municipal office. Recycling and proper disposal help protect the environment and prevent harmful effects on health.
Manufacturer: Ningbo Sound Solution I&E Trading Co., Ltd
Made in China
Models:
- Atom 500.2 Pro
- Atom 700.2 Pro
- Atom 900.2 Pro
Website: https://alphard.audio
