Let know the pa speaker for cars 

Main components of siren speaker

The components of the siren speaker include the siren speaker barrel, cylinder bowl, sound mold, wire harness, fastener and label.Then, we will list the important part:

1.Cylinder bowl

2.Diaphragm

3.NdFeB magnet

4.Magnetic Liquid On Speaker

Wiring harness, fastener and label are three essential elements of every product.

And core components of the pa speaker for cars are magnetic steel and sound mold. It will affect the service life and stability

What is magnetic steel

Magnetic steel generally refers to Al Ni Co alloy (magnetic steel in English, alnico is the abbreviation of Al Ni Co). It is composed of several hard and strong metals, such as iron, aluminum, nickel, cobalt, sometimes copper, niobium, tantalum. Ferrite magnetic steel is generally used in police car pa speaker, which is one of the most widely used permanent magnetic materials, especially powder metallurgy. The highest working temperature can reach 250 ℃, which is hard and brittle. Such products are widely used in the fields of permanent magnet motor and speaker.

As a professional manufacturer of emergency safety equipment, we ensure that all speakers are added with magnetic fluid. And we use the magnetic fluid from Japan and specially designed for speakers, which can better play its role.

Why does the siren speaker need to add magnetic liquid

The advantages of adding magnetic liquid are as follows:

First,it can effectively correct the position of voice coil

Then, it can increase the input power, and the power will affect the sound of the siren speakerto a certain extent.

And then, improve the service life of the sound model; most manufacturers in China do not add magnetic fluid when they manufacture the siren speaker, so the sound of the siren speakeris easy to change.

Finally, reduce nonlinear distortion and resonance

If you want to know more about magnetic liquid, please click here

What products can cooperation with the pa speaker for cars

The speaker can teamwork with siren control box. The siren speaker and the alarm siren are standard. Through the connection between the speaker and the police siren control box, the siren control box is responsible for controlling, and the siren speaker will play out the sound.

Also can use with lightbars. Install on the middle cylinder of the light bars and controlled by the car pa system.

What should be paid attention to use the siren and speaker

When use it together, should pay attention to the power. If the power of the siren is greater than that of the siren speaker, the effect of the speaker is not optimal. So it is easy to cause product damage. Therefore, the power of the two should be consistent. If the customer purchased a 400W alarm, but can’t match the power of siren speaker, so can use two 200W siren speakers together.

siren speaker rated voltage selection

It can use vehicle voltage of the speaker. This is related to the use scenario of the vehicle alarm speaker. If the voltage is not consistent, it will damage the product or the service life of the vehicle.

What kinds of power are available

The power of the siren speaker is 80W, 100W, 150W, 200W, etc. if you need a higher power loudspeaker, you can contact our salesman to discuss the detailed customized scheme, whether you need to equip our siren or match your company’s alarm. In addition, we also have small power music speakers to custom. The power is generally 20W, 40W, etc.

How to install the sirens speaker

We will provide detailed instructions for police sirens speaker installation. First, determine the installation position of the siren speake. Then fix it, and make the correct connection with the siren.

How to maintain the pa system for car

1.speakers should avoid a lot of dust using environment.

2.Do not put it in water or expose it to heavy rain

Therefore, it is necessary to do the daily maintenance of the siren system in daily life.Because in our inspection, the service life of the car pa speakers can exceed 200 hours, so if you do a good job of daily maintenance, its service life will be beyond your expectations.

Is the pa speaker for car directly purchased with the siren

You can buy the siren and speaker directly from us. If you buy directly, we will match the two directly according to your needs, so as to avoid product damage caused by different power. In addition, if you need a separate siren abd speaker, we can also provide separate sales

The certification of Aole products.

We support to provide to all our clients. At present, we have a variety of certification, certification involves various markets. For example, in response to the European market, we have CE certification. Corresponding to the American market, has SAE certification. For factory qualification, we have IATF16949 certification.

About packing size and packing method

We have a variety of models of police speaker, with a variety of functions, can be applied to different environments. Different models will have great differences in appearance. In order to protect the police car speaker from damage during transportation. We have customized a variety of box sizes to protect our products. Each type of speaker sound will have corresponding inner foam block and outer box size specification to deliver it intact to the customer’s hand. The specific size of the packaging box needs to be analyzed according to the corresponding speakers, quantity and other factors. We default to use corrugated box as the standard packaging material, which is in line with the international standard. We adopt the international box type standard jointly formulated by the European corrugated box industry association (FEFCO) and the Swiss paperboard Association (assco).

Can I custom the car pa speaker

We can custom the logo, label and name plate of pa speaker for cars. Need customers to provide us with relevant graphic information, as well as size and other requirements, we will actively cooperate.In addition, we can’t custom the materials of the siren speaker.

In addition, we accept the delevopment of loundspeaker from customs.This is related to the nature of our company. From top to bottom, we have a professional technical team.So if you need custom. Please send us your information.

Non-emergency, we do not accept urgent service

We have any stock in our warehouse. And we also didn’t accept additional urgent orders. The delivery time needs to be negotiated between the customer and the salesman. If there is a special reason, this order needs urgent processing, we are willing to try our best to meet the customer’s delivery time requirement. During this period, the labor cost may increase, after calculated and analyzed the specific cost, will inform the customer.

Please pay the balance before delivery

We can arrange delivery only after the balance has been paid. When the production is completed and the goods are to be shipped, the purchaser will be notified immediately, please pay the balance.After paying the balance, we will arrange the shipment on the same day, so please don’t worry

How does the siren speaker produce

Brief introduction of loudspeaker production process:

1.First of all, we will choose the right parts according to the requirements of customers;

2.Glue the magnet and the basin frame together and fix them without deviation;

3.Place the positioning support piece on the basin frame;

4.Fix the voice coil in the center of the magnetic circuit with the sound position without offset;

5.Fix (paper basin and basin frame, positioning support piece and voice coil, positioning support piece and basin frame) at the same time with three head automatic dispensing machine

6.After that, fix the cushion edge and paper basin with single end dispenser;

7.Wait for the glue to solidify and punch holes according to the requirements;

8.Put the lead through the hole and arrange it to the shape that can be welded;

9.Fix the lead wire by constant temperature welding gun;

10.After welding and fixing, arrange the lines, do not touch each other and affect the yield

11.After that, the finished wire is fixed on the paper basin with 8-type glue to play the role of insulation and fixation. At the same time, a dust cap is put on the magnetic circuit to prevent dust from entering;

12.After waiting for the glue to solidify, it can be tested. After the test is qualified, a finished speaker comes out as shown in the figure.

How long does the warranty last

Our pa speaker for cars will provide a one year warranty.in the warranty period, non-human damage, any damage due to quality problems, we will provide warranty services.

A good after-sales service of AOLE

There are two main types of after-sales service: out of warranty period and warranty period.

Whatever case, please provide the following information：

1.the contract when you purchased the product

2.the problem description of the product

3.and the video or photo information of the problem.