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1 DOOKWANG CO., LTD

Country South Korea South Korea

Supplier Grade

level0

Main products 50W Warning Horn Speaker detected by Shock
500W Rugged Directional Long Range Horn Speaker
300W Rugged Directional Long Range Horn Speaker
300W Horn speaker with VMS for snow truck

Product Information

This is to prevent from traffic accidents for workforce's safety and traffic control on roadway.  

 

There are many collision accidents at work zones on roadway because of some careless or drowsy drivers. So, this device was designed to deliver powerful and intelligible messages in the hostile environment of roadways. 

 

In the case of recognizing of distance, the conventional loudspeakers(horn speakers) has a short coverage in noisy environments on roadways or highways. Normally, it's 10 ~ 20m for the driver in vehiche to catch the warning messange and signal. It's too late to avoid traffic accident. In this case, it's too late to avoid the traffic accident. 

 

In order to secure the safety of the driver and workforce, this device covers about 300M. It's enough to change their direction. 

 

This acoustic device is used for mobile(truck) and ground. 

Image
  • front-of-px300ex

  • rear-of-px300ex

  • side-of-px300ex

  • px300ex

Feature

1) Product Composition

      - Acoustic part 

      - Amplifier 

      - Cable 

      - Remote Controller

2) Operation Power : DC12 ~ 24V

3) Output Power : 300W

4) Distance Range : about 1Km

5) Operational Range : 300m

6) SPL in Max. : 136dB

7) Size : 753 x 315 x 315mm

Spec

1. Speaker

 

ITEM

SPECIFICATION

TYPE

COMPRESSION DRIVER UNIT

METERIAL & FINISH

BLACK SEMI-CLASS FINISH

MOUNTING

1 3/8 -18 UNEF Threaded throat

OVERALL DIMENSION

133mm Diamete, 98mm Deep

VOICE COIL IMP

8 ohm ± 15% / DCR 4.5 ohm ± 5%

POWER RATING

RMS 300 watts continuous

FREQ. RESPONCE

150 - 5000 ㎐ (-20dB peck)

S.P.L

123 ㏈/W ± 2㏈ / Measured 1.2kHz at 3.3ft (100cm) on axis 1.0 wattage input.

BUZZERS& RATING

Must not evident when sweeping from 120Hz to 5.0kHz at 8.8 constant voltage

NET WEIGHT

2,704 g (95.39 oz)

 

2. Amplifier

 

ITEM

SPECIFICATION

4 ohm bridged output

1000W

Fuse capacity

3 * 20A AMP ATO

AMP CASE Size

350 X 198 X 53.5

Frequency Range

3dB 10Hz TO 30KHz

Signal / Noise Factor

>97dB

Distortion rate

0.03

Input sensitivity

300 mV - 8V

minimum effective resistance

2 ohm stereo / 2 ohm bridge

Rated voltage

DC 24V

 

3. PX-300EX

 

ITEM

SPECIFICATION

Maximum Volume(SPL)

136dB at 1m 1kh front (peak)

Backside Maximum

Volume(SPL)

95dB at 1m backside of the device

Acoustic "beam" Width

± 15°( at 1kHz/-3dB)

Size

753(L) * 315(W) * 315(H)

 

Company
DOOKWANG CO., LTD

DOOKWANG CO., LTD

Country South Korea South Korea

Supplier Grade

level0

President
SANG-IL, PARK
Address
5dong, 12-2, 427beon-gil Naechon-myeon Pocheon-si Gyeonggi, Pocheon-si, Gyeonggi-do, Korea
Product Category
Security & Protection,Other Consumer Electronics,Police & Military Supplies,Roadway Safety,Industrial Equipment Alarms
Year Established
2015
No. of Total Employees
1-50
Company introduction

Dookwang Co., Ltd is a manufacturer of road & traffic safety products in Korea. 

 

Based on 30 years of accumulated acoustic technology, we have developed some of specific acoustic devices and lauched the new concept of brand name for road & traffic safety. It's "Directional Long Range Acoustic Device(DLRAD)". 

 

As a result of successful result, we supplied DLRADs to Korea Highway Corp., and continue to develop and launch various products. 

 

Moreover, to improve efficienty and safety in roadway, we are constantly deveoping visual products with associated equipments. 

 

To answer the needs of overseas, we are proceeding the standardiztion now.  

Main Markets
  • U.A.E. U.A.E. ,
  • Germany Germany ,
  • Israel Israel ,
  • India India ,
  • Japan Japan ,
  • Kuwait Kuwait ,
  • Qatar Qatar ,
  • Saudi Arabia Saudi Arabia ,
  • Thailand Thailand ,
  • Viet Nam Viet Nam