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Gisen professional amplifier power supplier for various occations

Gisen professional amplifier power supplier for various occations

Place of origin
Guangzhou, China
Delivery time
depends on quantity, usually 3 days for less than 50 pcs
Payment terms
30% deposit, 70% balance before shipping
Supply ability
2000 pcs per month
inside plastic bag + cardboard + carton + outside plastic bag
Get Latest Price
Get the latest price
Quantity Needed:
Application Scope
With wide application, best stereo amplifier can be used in the following aspects.With a focus on best stereo amplifier, Gisen is dedicated to providing reasonable solutions for customers.
Company Advantages
1. The crucial material for amplifier power mainly includes digital audio power amplifier which is the best.
2. This product allows for easy gait. Its lightweight feature and ergonomic design greatly help enhance walking stability.
3. It is renowned for security. It is built with safety mechanisms, including overpressure protection, which aims to prevent any accidents.
4. Guangzhou Gisen Audio Equipment Factory is greatly willing to providing free samples for amplifier power .
PRODUCT Features

Touch-screen DSP easy to operate 、

Can be controlled by computer software 、

Multiple functions are available, such as EQ, delay, limiter, etc.

Multiple amplifiers be linked 、

Full protection circuit design

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Gisen professional amplifier power supplier for various occations-2

  • Front Panel

  • 1  -Screen

  • 2  -Signal/limiter (green is signal indicator, red is limiter indicator)

  • 3  -MUTE/PROTECT light

  • 4  -Power light

  • 5  -USB connector

  • 6  -Control knob

  • Rear Panel

  • 7  -Power Switch

  • 8  -AC power cord

  • 9  -Speakon output connector

  • 10  -XLR input connector

  • 11  -RS485 internet connector

  • 12  -XLR linear output connector


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DSP 4-Channel Top View

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DSP 4-Channel Rear Plate


8Ω Stereo Power 
4Ω Stereo Power 
2Ω Stereo Power 
Hum& Noise>112dB

Channel separation(Crosstalk)>70dB(1kHz) 

Damping Factor 1kHz,8ohms>1000 

Frequency Response20Hz-34kHz(±0.3dB)@1W,8Ω

Input impedance20KΩ 

USB connectorcontrolling parameter by PC software  

Internet output connectormultiple amplifiers on-line control by connecting 
                      to the internet input of the next amplifier
Touch-screenadjust the parameters by touching the screen 
Coolingfront-to-rear airflow, temperature controlled speed

Amplifier protectionshort circuit, open circuit, direct voltage, high temperature, 
radio-frequency, ultralow frequency, current peak limiter.  

Carton Dimension(H*W*L)155X600X550mm  

Power RequirementAC180V-240V(AC90V-120V),50-60Hz 
Net weight(kg) 
Gross weight(kg) 

Production flow chart

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1. Sheet Metal Processing

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2. Circuit Board Plug-in

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3. Circuit Board Debugging

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4. Circuit debugging

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5. Product assembly

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6. Debugging of the whole machine

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7. Product Aging

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Company Features
1. Guangzhou Gisen Audio Equipment Factory is the largest and most powerful amplifier power operation in the world.
2. We have a factory featuring a good location, which provides easy access to customers, workers, materials, and so on. This will maximize our business opportunity while minimizing our costs and risks.
3. We take our responsibility for the environment seriously. With streamlined manufacturing processes, efficient on-demand options, state-of-the-art machinery, and fulfillment services, we will bring green solutions to customers every day. Please contact us! Our company is built on a foundation of values. These values include hard work, building relationships, and providing superior services to our clients. These values make sure the manufactured products portray the image of our customers' company. Please contact us! Sustainability is core to our business. We are constantly evaluating and improving our processes with not only the services we offer our customers but our own business processes and initiatives.
Product Description 


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:








Rated Power Output 







Speaker Outputs

70V, 100V & 4~16Ω

Input Sensitivity & Impedance 

MIC 1, 2, 3: 5mV/600Ω

MIC 2, 3 Line Input: 775mV/10KΩ, Unbalanced RCA Screw Input

AUX 1, 2: 350mV/10KΩ, Unbalanced RCA Screw Input

Output Sensitivity & Impedance 

MIX OUT: 1000mV/470Ω, Unbalanced RCA Screw Output

 Overload source electromotive force

MIC 1, 2, 3: >12dB, Unbalanced TRS Screw Input

MIC 2, 3 Line Input: >12dB, Unbalanced RCA Screw Input

AUX 1,2,3,4: >20dB, Unbalanced RCA Screw Input

MP3: >20dB, Unbalanced Input

EMC: >12dB, Unbalanced DG7.62 Screw Input


Bass:±10dB at 100Hz

Treble:±10dB at 10KHz

Frequency Response

50Hz~16KHz(+1dB, -3dB)

S/N Ratio 

S/N Ratio S/N Ratio 


1KHz 0.5%, 1/3 Output Power Consumption

Muting Function 

MIC 1 overrides other input signals 

0-30 dB adjustable




Forced air from front to rear, start built-in fan when radiator temperature reaches 45 degrees 


Over heat, over load & short circuit

Power Supply


Power Consumption

















Black aluminum panel, SPCC cold rolled chassis


Product Pictures








Process Technology



Company Introduction



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.


Plant & Equipment


Packaging Shipping




The Exhibition


Customer Photo




Our Service


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.





Q: Are you trading company or manufacturer ?

A: We are factory.

Q: How long is your delivery time?

A: Generally it is 5-10 days if the goods are in stock. or it is 15-20 days if the goods are not in stock, it is according to quantity.

Q: Do you provide samples ? is it free or extra ?

A: Yes, we could offer the sample for free charge but do not pay the cost of freight.

Q: What is your terms of payment ?
The product features repeat push-pull performance At the same time, this amplifier power has the characteristics of amplifier power. The product features repeat push-pull performance
Guangzhou Gisen Audio Equipment Factory bears amplifier power in mind while designing amplifier power. The product guarantees that subscribers enjoy high-quality transmission of video, voice, and data
Professional design for digital audio power amplifier is a big advantage for Gisen. The product has minimum disruption to décor or landscape
The material for amplifier power is of high quality. The product can be used inside buildings or houses
It is beneficial for the fame of Gisen to perform elaborate design for amplifier power. The product is small in size and flexible to use
It has good elasticity. It has a structure that matches pressure against it, yet slowly springs back to its original shape. The product guarantees that subscribers enjoy high-quality transmission of video, voice, and data
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