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Product Details

Main parameters:
Unit diameter: 4 inches
Impedance: 4Ω. 8 Ω
Rated power: 40W
Maximum power: 50W
Peak power: 100W
Frequency response: 65Hz-3500Hz
Sensitivity: 88dB
Qts: 0.52
Box volume: 5.6L
Maximum outside diameter: 116mm
Diagonal screw hole: 105-108mm
Speaker height: 65mm
Speaker hole size: 93mm
Cone Material: Cotton Paper + Hemp
Net Weight:760g/PCS
1. very suitable for the production of 2.1 speakers subwoofer unit and two-way Crossover speaker woofer,
2. The cone is added with flax and bamboo fiber, the suspension is made of rubber and foam composite material, the real long-stroke, high-power design,
3. The use of strong magnetic circuit system, air back flow system to ensure that the work in the high-power long stroke, bass clean, strong, fast. Low-frequency full of flexibility, used to upgrade the computer speaker subwoofer is also a good choice,
4. Because of the high sensitivity, 25W-50W can easily push. Is a very rare bass unit.
Material and Design :
1. True sense of high power long stroke design
2. With cotton and linen fiber pulp, bass fluffy and soft
3. Large-scale imports of A-level rubber side
4. Powerful dynamic range, with a powerful magnetic circuit system
5. Full convection design, air resistance to a minimum
6. Independent acoustic abrasive design
Package included:
1pcs 40w Round subwoofer speaker (
Price for 1PC)

Item Specifics
Model Number:
4 inch Subwoofer Speaker
Intelligent Personal Assistant:
Playback Function:
Playback Function:
Playback Function:
Power Source:
Power Source:
Remote Control:
Output Power:
Brand Name:
Speaker Type:
Cabinet Material:
Audio Crossover:
Support Apt-x:
Audio Line
Voice Control:
Number of Loudspeaker Enclosure:
Display Screen:
Built-in Microphone:
Wi-Fi Music:
Unit diameter:
4 inches
Maximum outside diameter:
Diagonal screw holE:
Rated power:
Maximum power:
Net Weight:
Shipping & Payment


We are proud to offer international shipping services that currently operate in over 200 countries and islands world wide. Nothing means more to us than bringing our customers great value and service. We will continue to grow to meet the needs of all our customers, delivering a service beyond all expectation anywhere in the world.

How do you ship packages?

Packages from our warehouse in China will be shipped by ePacket or EMS depending on the weight and size of the product. Packages shipped from our US warehouse are shipped through USPS.

Do you ship worldwide?

Yes. We provide free shipping to over 200 countries around the world. However, there are some locations we are unable to ship to. If you happen to be located in one of those countries we will contact you.

What about customs?

We are not responsible for any custom fees once the items have shipped. By purchasing our products, you consent that one or more packages may be shipped to you and may get custom fees when they arrive to your country.

How long does shipping take?

Shipping time varies by location. These are our estimates:
Location *Estimated Shipping Time
United States 10-30 Business days
Canada, Europe 10-30 Business days
Australia, New Zealand 10-30 Business days
Central & South America 15-30 Business days
Asia 10-20 Business days
Africa 15-45 Business days
*This doesn’t include our 2-5 day processing time.

Do you provide tracking information?

Yes, you will receive an email once your order ships that contains your tracking information. If you haven’t received tracking info within 5 days, please contact us.

My tracking says “no information available at the moment”.

For some shipping companies, it takes 2-5 business days for the tracking information to update on the system. If your order was placed more than 5 business days ago and there is still no information on your tracking number, please contact us.

Will my items be sent in one package?

For logistical reasons, items in the same purchase will sometimes be sent in separate packages, even if you've specified combined shipping.

If you have any other questions, please contact us and we will do our best to help you out.


Order cancellation

All orders can be cancelled until they are shipped. If your order has been paid and you need to make a change or cancel an order, you must contact us within 12 hours. Once the packaging and shipping process has started, it can no longer be cancelled.


Your satisfaction is our #1 priority. Therefore, you can request a refund or reshipment for ordered products if:

  • If you did not receive the product within the guaranteed time( 45 days not including 2-5 day processing) you can request a refund or a reshipment.
  • If you received the wrong item you can request a refund or a reshipment.
  • If you do not want the product you’ve received you may request a refund but you must return the item at your expense and the item must be unused.

We do not issue the refund if:

  • Your order did not arrive due to factors within your control (i.e. providing the wrong shipping address)
  • Your order did not arrive due to exceptional circumstances outside the control of jonaki (i.e. not cleared by customs, delayed by a natural disaster).
  • Other exceptional circumstances outside the control of

*You can submit refund requests within 15 days after the guaranteed period for delivery (45 days) has expired. You can do it by sending a message on Contact Us page

If you are approved for a refund, then your refund will be processed, and a credit will automatically be applied to your credit card or original method of payment, within 14 days.


If for any reason you would like to exchange your product, perhaps for a different size in clothing. You must contact us first and we will guide you through the steps.

Please do not send your purchase back to us unless we authorise you to do so.

Customer Reviews
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12 Nov 2019

All so, as the description. Woofery in very good condition and in the right size. Super fast shipping! See how to play.

3 Nov 2019

Very good speakers with nice sound. Recommended store and product.

21 Oct 2019

In CHV for a couple with Chinese pishchalki sing very dignified.

17 Oct 2019


15 Oct 2019

Solid construction, decent finishes. It has good glued for 4 ", i have tried it in full range and it is heard well. When i put the filters i will value again.

13 Oct 2019

Came quickly, in a few days, with a kind of excellent speaker, has not yet connected, later i will add a review

27 Sep 2019

According to the description

17 Sep 2019

very fast Shipping. thank you store, ang this Recomended Seller

6 Sep 2019

It works well, with good power. I did a bass boost at 60hz to achieve a better result. They are installed in sealed boxes of 5.8 litres

7 Aug 2019

Product true to description. He arrived in spain in three weeks, very well packaged and protected in polystyrene box. This subwoofer speaker has a very good construction quality. It is 4 "(approximately 100mm) and has 4ohm resistance. It is very powerful for its size and price, but nec is ita from a box for its correct operation. It has good membrane travel. I'll use it on 2.1 audio systems. I tried it with amplifier tpa3116 2*50w + 100w and it works great. Very good value for money ($20) for small home audio systems. I would appreciate it if the store could provide more data for your correct installation (box size, etc) Recommend product and seller

Super hot! Several others have checked this out in the last few hours

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