Grf Audio 4 Channel Big Power Class D Power Amplifier
| Price: |
Negotiable/Piece |
| Trade Terms: |
FOB,CFR,CIF |
| Min Order: |
1/Piece |
| Pay Type: |
L/C,T/T,D/P,Western Union |
GRF Audio 4 Channel Big Power Class D Power Amplifier
Key features:
· 4 channels
· XLR input connectors
· Speakon output connectors
· Each channel has independent Clip Limiter
· Stereo Parallel modes of operations
· Reliability
· Complete amplifier protection
1- GainControll 2-Signal Display
3-Clip Display 4- Mute(protetion)Display
5-Power Display 6-Power Switch
7-Power cordconnector 8-Serial numberlabel
9-Speakon output connectors 10-XLR input connectors
11-Input SensitivitySelecting 12-Output voltageselecting
Output Voltage PeakLimiter(VPL)
Voltage Peak Limiter (VPL) is a unique feature in D series amplifiers. It is used to select the maximum power available on each output channel. The VPL allows you to set the correct output power for the connected speakers to get to its best performance. The correct configuration is depended on the system typeand theload of connected channel.
Specification:
8 ohms Stereo Power
4X1250W
4 ohms Stereo Power
4X2500W
Input connetor
XLR female
Input impedance
20k ohms balanced
Input Sensitivity
0.77V 1.44V
Input CMRR
>80dB
Output connector
Speakon
Hum&Noise
>112dB
Damping Factor
>1000 @ 8Ω
THD
<0.1% (20Hz-20kHz 1W)
Frequency Response
20Hz 34KHz,(+0/-0.3dB, 1W/8ohms)
Level control
front level meter, from negative infinity to 0dB
Cooling
variable speed fans, front to rear airflow
Power Requirement
AC voltage 180-240V 50-60Hz
Amplifier dimensions
88mmX488mmX438mm
Packing dimensions
15 0mmX 600mmX550mm
Net weight(kg)
12.9
Gross weight(kg)
16
| Prod Model: |
D412 |
| Markets: |
North America,South America,Eastern Europe,Southeast Asia,Africa,Oceania,Mid East,Eastern Asia,Western Europe |
| 8 Ohms Stereo Power: |
4X1250W |
| Input Connetor: |
XLR Female |
| Type: |
Professional Amplifier |
| Voltage: |
AC 220V |
| Output Number: |
4 |
| Used For: |
Professional |
| Conductive Mode: |
D |
| Tube Type: |
Transistor Amplifier |
| Function: |
Classd Power Amplifier |
| Usage: |
Professional Speaker |
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!
