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3.5 inch IP67 IP65 waterproof speaker unit

  • HC87W-7F-R8
  • HC
  • Product name: 3.5 inch mid range traffic light speaker unit
  • Rate power: 12Watt
  • Max power: 20Watt
  • Sensitivity: 100±3dB
  • Impedance: 8 ohm Provide customized services
  • Frequency: Fo~~5KHZ
  • Resonance frequency: 850 hz±20%
  • Distortion rate: ≤5%
  • Magnet size: Dia 60*32*10mm
  • Size: 88*88*34Hmm
3.5 inch professional outdoor loudspeaker 87mm 8ohm 20W IP67 waterproof speaker driver unit

Attribute Value
1.1 Rate power 12 W
1.2 Max power 20 W
1.3 Sensitivity 100±3dB(AT 0.1M/0.1W, AT 0.6,0.8,1.0,1.2KHZ)
1.4 Impedance 8Ω±15%
1.5 Frequency Fo~~5KHZ
1.6Resonance frequency 850hz±20%
1.7 Distortion rate ≤5%
1.8 Magnet size Φ60*32*10mm
1.9 Weight 250g±8%
2.0 Size 88*88*34Hmm
2.1voice coil & Material 19.45mm KSV+Cu
2.2 Cone PET

Speaker classification introduction

As a single speaker is incapable to provide the whole range of audio frequency so the loudspeaker consists of different driver units which are as follow – 

1) Tweeter (for High-frequency range)

2) Mid-range driver (for Middle-frequency range)

3) Woofers (for Low-frequency range)

Types of speaker 

The speakers can be classified in many different ways. On the basis of amplification, they can be classified as follow – 

1) Passive Speaker

2) Active Speaker

Passive Speaker – The passive speaker does not have built-in power amplifier. So they need to connect to an external power amplifier for high power output. Most speakers that are commercially available are passive type due to their small size. 

Active Speaker – This type of speaker has inbuilt power amplifier for high and low frequency. So they are also called as Powered Speakers. But they are bulky as compared to the passive one so they are less used commonly. 

Speaker structure





压边 Gasket


盆架 Frame


音圈 Voice coil


弹波 Damper




磁铁 Magnet


T铁 T-yoke


鼓纸 Cone


帽子 Dust cap


接线板 Terminals

Packaging style



1.Can you provide samples?

Of course, we can provide 2 free samples, and the sample delivery time is 7-10 days.

2. I would like to know procurement lead time

Please contact us when you need the latest lead time information because it will be changed depend on the market condition.

3. What about the Minimum Order Quantity?

Please confirm with the sales before placing the order. If there are raw materials in stock, 1,000 pieces of a single variety are acceptable.

4.Can customize,modify and develop products according to the design drawing?Yes,we provide OEM service and can customize products according to the drawing.

5.What about terms of payment?
Payment terms: T/T, west Union.

Company introduction and workshop photos.


Hongchang(changzhou) electronic co., Ltd is a manufacturing enterprise that started in 1997 and has more than 20 years of production experience.

The main products are Speaker unit, alarm buzzer, piezo element and ultrasonic sensor.

Speaker: piezo tweeter, mylar speaker, loudspeaker, tweeter speaker, TV speaker, car speaker, multimedia speaker, woofer, sub-woofer, waterproof speaker etc

Buzzer: piezoelectric (piezo) vibration element, piezoelectric buzzer, magnetic buzzer, SMD buzzer

Ultrasonic sensor: for car parking system or distance measure.

Now we have 185 staffs, especially including 18 acoustic engineers, we provide products customization service, offer free sample for test. we are focus on product innovation , Management innovation. The quality of product was recognized by customer from all over the world.

Production line

3 (2)4 (2)

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