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Gisen professional pro dj amplifier 2channel for performance

Gisen professional pro dj amplifier 2channel for performance

Gisen professional pro dj amplifier 2channel for performance

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
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Enterprise Strength
  • Gisen is committed to providing customers with thoughtful, comprehensive and diversified services. And we strive to gain mutual benefit by cooperating with customers.
Product Details
Choose Gisen's high power amplifier for the following reasons.high power amplifier is in line with the stringent quality standards. The price is more favorable than other products in the industry and the cost performance is relatively high.
Company Advantages
1. Gisen pro dj amplifier is made of fully checked raw materials.
2. We firmly believe in 'quality first' and thus we have established a strict internal quality control system for this product.
3. Strict testing: its current performance has been tested by third parties. It is also ready to be tested by users and will be continuously updated.
4. Guangzhou Gisen Audio Equipment Factory provides a strong price advantage.
5. Guangzhou Gisen Audio Equipment Factory provides all-round fast after-sales service with its perfect after-sales service system and professional service personnel.

Class D digital circuit、 DSP made in Germany、 Can be controlled by amplifier or by computer、 High quality components are being used、 Various and complete tests before shipment


M-DSP 4-Channel Top View

M-DSP 4-Channel Rear Plate


8 ohms Stereo Power 
4 ohms Stereo Power 
2 ohms Stereo Power 
Hum& Noise>112dB
Input connectorXLR Female
link connectorXLR Male
Input impedance20k ohms balanced
Input Sensitivity1.4V
Input CMRR>80dB  
Output connectorSpeakon
Damping Factor>1000 @ 8Ω
Frequency Response20Hz-20kHz (±0.3dB)@1W, 8Ω 
volume adjustmentElectronic volume adjustment  
Internet input connectorControlling parameters 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 
CoolingVariable speed fans, front to rear airflow
Power RequirementAC180V-240V (90V-120V), 50-60Hz
Carton Dimension(H*W*L)100mmX640mmX590mm
Net weight(kg) 
Gross weight(kg) 

Production flow chart


1. Sheet Metal Processing


2. Circuit Board Plug-in


3. Circuit Board Debugging


4. Circuit debugging


5. Product assembly


6. Debugging of the whole machine


7. Product Aging

Company Features
1. Guangzhou Gisen Audio Equipment Factory is domestically competitive in manufacturing and exporting amplifier power .
2. Guangzhou Gisen Audio Equipment Factory has expanded the influence of its pro dj amplifier in dsp power amplifier industry.
3. Guangzhou Gisen Audio Equipment Factory will always strives for first-rate best power amplifier in the world . Inquiry! The brand tenet of Gisen is an operation instruction to develop work. Inquiry! Guangzhou Gisen Audio Equipment Factory will continue to strive towards the goal of domestic first-class dj power amplifier company. Inquiry! Guangzhou Gisen Audio Equipment Factory plans strategically for the future. Inquiry!
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.



Product Description
MODELCA2CA4CA6CA9CA12CA18CA198Ω Stereo Power2×250W2×350W2×500W2×650W2×800W2×1100W2×1300W4Ω Stereo Power2×310W2×450W2×750W2×1000W2×1200W2×1800W2×1950W2Ω Stereo Power2×650W2×900W2×1300W2×1400W2×2400W2×3600W2×2900W 8 BTL700W1050W1400W1600W3200W4400W5000W Slew Ratio≥30V/μS≥30V/μS≥30V/μS≥30V/μS≥30V/μS≥30V/μS≥30V/μS Damping factor≥300:1≥300:1≥300:1≥500:1≥300:1≥300:1≥300:1
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