Electric subwoofer 40 bass also known as 4 inch electric subwoofer is one of the devices that helps improve the quality of your sound system. The 40 bass electric subwoofer models introduced in the following article are being sold by Phuc Truong Audio at extremely good prices. Let's find out now!
1. JBL LS 4 1200-inch electric subwoofer
JBL LS 4 1200 inch electric subwoofer super bass is a product of JBL, a famous American audio equipment company. This product has a capacity of up to 500W and is often used in small sound systems.
The subwoofer is equipped with a gauge steel mesh that protects the speaker extremely well during use as well as during transportation. The outstanding feature of the product is that the device provides sub-bass frequencies with high precision. Class D technology provides wide sound diffusion and effective amplification. JBL LS 1200 speakers have a fairly high sensitivity of up to 131dB.
Structure | Sub bass 15inch (40cm) |
Rated Capacity | 500 |
Frequency range (-10dB) | 37 Hz – 113 Hz |
Frequency response (±3 dB) | 44 Hz – 91 Hz |
Internal cut-off frequency | 100 Hz DSP controlled 48 dB filter slope |
Loop up cutoff frequency | 120 Hz analog 24 dB filter slope |
Maximum pressure | 131 dB |
Input impedance | 20K Ohms (balanced) |

2. Klipsch SPL40 150 bass powered subwoofer
The Klipsch SPL40 150 bass powered subwoofer impresses with its eye-catching design in luxurious wood color. The shell is made of scratch-resistant ebony, rubber feet, steel mesh pillars, and woven fabric grille to enhance the appearance of the speaker.
Equally attractive to the design are the outstanding features of the SPL50. The class D amplifier in the device provides high performance, ensuring maximum output sound quality, low power consumption. The special bass speaker structure provides clear, clean sound, low distortion. In particular, the SPL50 has exclusive vent technology to reduce resonance from the walls and furniture around the speaker.
Specfication
Sub type | Electric sub |
Integrated amplifier | Class D |
Pha | yes, 0 – 180 |
Bass Speaker | 40cm |
Speaker bass information | Bass face |
RMS power | 400w |
Max capacity/program | 800w |
Speaker cover | MDF wooden |

>>>> See More: Quality, cheap, best-selling 2-inch subwoofer in 2022
3. CAVS KS4 15-inch subwoofer
CAVS SC715 electric subwoofer has a harmonious, luxurious and modern design. This is a high-end subwoofer product, the speaker cabinet is made of high-quality plywood and covered with a protective paint layer. Therefore, this product is highly durable and resistant to all impacts from the external environment.
This device features bass reproduction for powerful, realistic sound and clear, powerful bass. Combining the design and features of this product, this is a great choice for your family's sound system.
Specfication
Speaker power | 900W / 1800W |
Bass Frequency (1m/60dB) | 20 - 170Hz |
the size | 50 x 54 x 54 cm |
Weight | 29kg |
4. Electric subwoofer 4 inch Boston LV 4000
Boston LV 4 4000-inch powered subwoofer can play in both steam and electric modes. The product impresses with its beautiful design in neutral black that fits any space.
The outstanding feature of this product is the output sound quality. Boston LV 4000 operates with a large capacity of 850W, producing perfect sound quality with strong, round sound. Besides, for light music, the sound quality from LV4000 is also soft and deep.
Specfication
Sub type | Sub electric, steam |
Real capacity | 300w |
bass | 40cm |
Regime | 0-180 |
Weight | 33kg |

5. LS – 1200 BellPlus powered subwoofer
The LS – 1200 BellPlus powered subwoofer attracts with its modern European design and minimalist lines. With its compact, slim size, this product is suitable for small spaces with not too large an area.
LS – 1200 BellPlus can be combined with many different speaker sets without affecting or depending on the amplifier's operating capacity. The speaker has a capacity of up to 500W, producing vivid, powerful, and sophisticated sound. This product is easy to use because the function adjustment buttons are easy to operate, bringing a comfortable feeling to the user.
Specfication
Bass speaker | 40cm |
Impedance | 8 ohm |
Wattage | 200 - 500 W |
Color | Black |
Dimensions (width x height x depth) | 60 x 47 x 52 |

Products 4 inch electric subwoofer is being officially distributed by Phuc Truong Audio, you can refer to this product line on the website or at our store at the address listed below.
There are many benefits to shopping at PTG Audio
- Products are guaranteed 100% genuine imports.
- Get advice from a team of professional and experienced staff and technicians.
- Free installation and delivery support.
- Products are warranted for a long period of 1 - 3 years.
- Can be returned within 15 days if the product is defective due to the supplier.
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