1. 2U standard 19-inch industrial chassis, ergonomic design, sophisticated technology, filling with the high-grade temperament;

2. 3 channels of MICs, 2 channels of audio inputs, an auxiliary audio output;
3. Forcibly cutting priority function, Mic 1 has the highest priority, the other channels have second priorities;
4.2 channels of Mic Line Inputs (sensitivity of MIC2/MIC3 channel line input is 775mv);
5.Mic and Aux have volume control knob and treble, bass tone control knob;

6. Amplifier output comes with four partitions, you can select the partition state;
7. The device has a good short circuit, overheat, overload automatic detect and protect function, the indicator will light to warm, warning buzzer will ring to alarm;
8. Linking two machines can achieve independent volume control for each channel for eight partition, as well as three machines can achieve independent volume control for each channel for twelve partition ,and so forth;
9. 2 kinds of power output modes: constant voltage output 100V, 70V and constant resistance output 4~16Ω.,4 partition output modes: constant voltage output 100V.

Technical parameters:

ShenZhen OBTPATechnology Co., Ltd. (www.obtpa.com) is a collection development, production and sales of public broadcasting series of high-tech industrial company.The Headquarters is in China's southern economic and technological frontier --- Shenzhen. Company was established in 1999.adhering to innovate and create value for our customers business philosophy,we have made great progress in the development, production and sale of process equipment in the public broadcasting system to create and establish a good
image in the public broadcasting industry brand - OBT.

Our company is always in pragmatic business philosophy for partners to provide the best products and efficient service. Looking forward to cooperating with friends from all walks of life based on common development. On the operation and management, we' re constantly improving the marketing management system and the promotion of comprehensive competitiveness of enterprises. Internally, in each big, middle cities set up marketing network and service system to provide quality technical support and after-sales service; Abroad, our products have been exported to Hong Kong, Macao and Taiwan, southeast Asia and Europe and the United States market,quality and process are recognized by the vast majority of customers OBT brand main products include: public broadcasting system, fire emergency broadcasting system, the campus computer addressable broadcasting system, digital addressable broadcasting system,conference system and a series of ancillary equipment and various indoor and outdoor column, wall hanging speaker, lawn speaker, flat speakers, smallpox horn, horn speaker, volume controller, radio receiver and professional broadcast cabinets, etc. Products can be widely used in sports venues, conference and exhibition center, hotel, school, supermarket, park, sauna, stations, factories, residential and other public places. Looking to the future, we 're confident on our present business! High quality products, first-class service; which will always be OBTPA permanent commitment to you! Let usjoin hands and create a bright tomorrow! 

In the 21 th century, It is more incentive and cruel in the economy market competition. In fact, It is based on talents' competition.

The human resources of OBTPAPASystem' s concept will show in the organization structure, function, management target, etc, andwill make it more creative and humanized.

Q:May we become an OBTPA Distributor?
A: Yes, you will be most welcomed in our Network of Distributors. Please let us know about your interest in becoming one of them. We are very keen to broaden our sales network and we will be very happy to have you as our esteemed distributor.

Q: Does OBTPA provide Technical Training for its clients and distributors?
A: Yes. Providing technical training to our Distributors is a very important matter for us. We provide training seminars in our factories upon requests and also at scheduled times. These training seminars are free of charge for the attendants who only have to take care of their own transportation and hotels costs. Please contact us if you are interested in attending one of these seminars. Also we provide teaching videos to our customers. For some difficult questions, we can arrange meetings between our customers and our engineers through phone .Skype

Q:Does OBTPA provide Commercial Training for its clients and distributors?
A: Yes. This can be done during a previously arranged Technical Training, as mentioned above, or as a separate event. Please contact us if you are interested in attending one of these seminars.

Q:Is it possible to organize in-house training for our engineers and salesmen?
A: Yes, we can accommodate to this request. However, charges may apply. Please ask for conditions.

Q:What is the warranty of the OBTPA products?
A: Please see our quality commitment as follows:
ensure our products and technical services assume full responsibility for the quality.
for the products from the date of acceptance, the warranty period is two years, if quality problems occurred within one year, we provide free replacement parts;
warranty expires, the supplier will provide maintenance / repair services, only charge for material cost;

Q:What standards do the OBTPA products and systems comply with?
A: Our products comply with CE standards, CCC standards and contract requirements, We produce the products which can meet the customers’ satisfaction. And our company have got the certification of ISO9001,ISO14001,ISO18001 and CE.

Q:Can the OBTPA products and systems be integrated with other systems like Fire Alarm, Building Management Systems and so on?
A: Yes, they can be integrated with other systems through several different ways

Q:Does OBTPA have a standard solution for any request of a Public Address / Voice Alarm System?
A: Having been in this field since 2003 and with our comprehensive catalogue of products and systems, we would say that we have standard solutions for almost any requests. We are glad to analyze and propose tailor-made solutions for the satisfaction of the Clients, Distributors and System Integrators.