Guangzhou Dema Electronics and Sound Ltd. >> PRO Audio High Stereo Power Amplifier

PRO Audio High Stereo Power Amplifier

PRO Audio High Stereo Power Amplifier
Price: Negotiable/Piece
Trade Terms: FOB,EXW
Min Order: 5/Piece
Pay Type: L/C,T/T,D/P,Western Union
Prod Model: E-280
Markets: North America,South America,Eastern Europe,Southeast Asia,Africa,Oceania,Mid East,Eastern Asia,Western Europe
Segregation Ratio: 1kHz/Full Power: 56db 20kHz/Full Power: 42db
Rated Power: 280W+280W
S/N Ratio (1kHz, A Weight): >98db
Total Harmonic Distortion: <0.14%
Function: Post Amplifier
Tube Type: Transistor Amplifier
Used For: Professional
Conductive Mode: AB

Product Description

Pro Audio High Stereo Power Amplifier Features: 1.6 different power outputs to meet different venues. 2. Intellegent heat releasing design ensures working more quietly. 3. Equipped with both XLR and TRS(6.35mm). 4. STEREO, BRIDGED or PARALLEL output modes. 5. With Signal led, Peak led Protect led and Power led. 6. Protection circuit design, overload/short-circuit/DC protection, temperature control system and peak limit. 7.2U height design. 8. Class AB design. 9. Soft-start function. 10. AC power input 110V~120V/50Hz or 220V~240V/60Hz.
Model E-280
Rated Power 1KHz THD ≤0.1% Stereo 8ohms 280W+280W
Stereo 4ohms 450W+450W
Bridge 8ohms 650W
S/N Ratio  (1KHz, a weight) >98dB
Total Harmonic Distortion (at full rated power, 20Hz - 20kHz) <0.14%
Frequency Response 20Hz-20KHz±1dB
Input  Sensitivity Switchable 0.775V/1V/1.4V
Max. Input Level 21dBV/6V
Lowest Loading Impedance  Stereo 4~8 ohms, Parallel 4~8ohms,Bridge 8~16ohms
Crosstalk @ Rated output power 8 ohms 1KHz >50dB
Damping Factor f = 1KHz 8 ohms >350
Protection Over load, short circuit, current limited, DC fault, AC line fuse, thermal
Cut off, power up/down transients, Soft start
Indicator Power(1 blue),Signal(5 blue),Clip(1 blue),Protection(1 blue)
Cooling Variable speed fan,Radiative temperature control
Front Panel Controls Level CH A,CH B ,Power switch
Rear Panel Controls Stereo/Bridge/Single channel mode selector,0.77V/26dB/1.4V INPUT sensitivity switch
Connector Balance XLR Input, XLR link output,  Speakon output ,bingding post output
Power Consumption (W) @ half power 8ohms 280
Power Supply Optional 110V~120V/60Hz or 220~240V50Hz
Power cord European, Chinese, Austrilian or American
Net Weight (kg) 12.5
Grooss Weight (kg) 14
Dimensions (HXWXD)mm 140X522X463
We, of Guangzhou Dema Electronics and Sound Ltd. ( Leilotto/GRF ) was found in 1989. Specializes in research, developing, manufacturing, sales and technical services in PRO audio & KTV audio equipment.

Early since 1996, when most of Chinese entertainment place & event providers were still enjoy using well-known European or American PA system, DEMA had awarded that Chinese PA system would became global trend in marketing PA industry. After 20 years effort, DEMA has became one of the leading PA manufacturers in China.

Some people might say DEMA starts its growing by manufacturing KTV equipment, yes, but they just right a half, the first Professional Sound System of DEMA was RV12/15/215/218 series, which was launched in 1997 yet it still one of the flagship line of DEMA.

Brief Data of DEMA ( By the end of 2008 ): -

Holding Brands: - GRF ( Welcome OEM/ODM Business )

Product Line: -

Line array, Active/Passive loudspeaker & Subwoofer,

Plastic loudspeaker, Karaoke speaker & amplifier.

Analog/switch power/digital amplifier.

Mixer, signal processor. Public address, accessory.

Annually production capacity:

100, 000PCS Speakers

Employee:

270~330 (Peak Production Season)

Department:

1. R&D Department 15%

2. Engineering 5%

3. Production Department 50%

4. Marketing 5%

5. Sales Department 10%

6. QA, &QC 7%

7. Logistic 3%

8. After-sales Services 5%

Facility: -

CNC, SMT, Audio Precision Machine (APM), Anechoic

Chamber, Anti-corrosion lab, Injection Molding Line,

ICT/CLIO/LMS Test Equipment.

Current Certificates: - CE, RoHS, ISO9001: 2000, CB, CCC

Coverage: - 25, 000 Square meters

Exported Records: UK, France, Spain, Portugal, Switzerland, Greece, Romania, Belgium, Croatia, Netherlands, Finland, Russia, Germany, Canada, U. S. A, Ecuador, Pureto Rico, Chile, Australia, Dubai, Israel, Kuwait, Saudi Arabia, Iran, Egypt, South Africa, Uganda, Japan, Turkey, Korea, Singapore, Thailand, Malaysia, Indonesia, India, Philippine, Kazakhstan ( To be continued )

Fixed Installation: -

Over 3000 High-Class Night clubs, Bars, Hotels, Chambers, KTV Place.

Live Show: -More than 300 small to big outdoor or indoor performance.

Exhibition:
PALM Beijing, PALME DUBAI/S. G., NAMM SHOW, MUSIC Moscow, PROLIGHT+SOUND FRANKFURT/Shanghai, SLM GUANGZHOU.

Viewing through China PA history, with the recession of home audio and the emersion of professional audio business opportunities, there rise a large number of manufacturers, within which, some are well qualified ones. But unfortunately, as always existing at the primary stage of every industry, there are quite a few of badly-equipped small factories looking after quick money.

DEMA products are mostly exported to European markets, some are well accepted in many Asian countries, and quickly gain the market favor from some American, Australian, African countries. High end acoustic system of DEMA, the sound reversion can reach even surpass some well-known European or American brands.

DEMA products can receive high appraisal from current customers, that's worth congratulating. But, being PA systems manufacturer, we are plenty to do. The task for future is still painstaking and there is a long road to walk. Our mission is to be an Excellent Acoustic Equipment Provide all over the world!

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