Professional 400W Sound System Power Amplifier
| Price: |
Negotiable/Piece |
| Trade Terms: |
FOB,CIF,EXW |
| Min Order: |
5/Piece |
| Pay Type: |
L/C,T/T,D/P,Western Union |
| Prod Model: |
Q-400 |
| Markets: |
North America,South America,Eastern Europe,Southeast Asia,Africa,Oceania,Mid East,Eastern Asia,Western Europe |
| Stereo 8 Ohm: |
400W |
| Voltage Gain: |
31.3 Db |
| Input Impedance: |
Rated Power 1kHz, Balanced Input 20kohm |
| Frequency Response: |
20Hz~20kHz ± 1db |
| S/N Ratio: |
> 96db(1kHz, a Weight) |
| Thd+N: |
< 0.14% (20Hz~ 20kHz) |
| Dimension (Hwd): |
88X482X445mm |
| Function: |
Amplifier Combined |
| Tube Type: |
Transistor Amplifier |
| Voltage: |
AC 220V |
| Element Number: |
Push-Pull Amplifier |
| Used For: |
Professional |
| Conductive Mode: |
AB |
| Usage: |
Installation |
| Type: |
Professional Amplifier, Karaoke Amplifier |
| Output Number: |
2 |
| Sound Channel: |
2CH |
Product Description
Power Amplifier, How to match speaker system with correct Power Amplifier is our important technical angle to build & configure our amplifier, We pay attention to damping factor, because we pursue a better LF performance for speaker system, we work hard on the Thermal capacity, because we believe less heat loss from amplification, less power loss, increase effective output to speaker System.
Basis on above mentioned concept, GRF engineer design Q series power amplifier to meet the great demands installed Sound applications. It ranges from stereo 200W to powerful 1200W, total 5 models. It is combining Class AB & Class H circuit.
The front to rear air flow design of Q series AMP enables excellent cooling features, with the removable front panel, Cleaning and maintenance are easy to be done.
Key Features:
1.5 models to meet different power requirements
2. Intelligent speed fan for low noise.
3. XLR and 6.35mm TRS inputs, speakon outputs.
4. Rear switch control for stereo, bridge mono and parallel Operation.
5. Front panel indicators including signal, clip, protect and Power LEDs.
6. Comprehensive protection circuitry including over-current, Short circuit, over-heat, DC, clip limiter protections.
7. Compact 2U ( Q-200, Q-400, Q-600 & Q-800 ) & 3U (Q- 1200) package.
8. Class AB type Q-200/400/600, Class H output (Q-800) & Class H 3 Tier output circuitry for high efficiency (Q-1200).
9. Soft start.
10. Optional 110V~120V/50Hz and 220V~240V/60Hz.
|
Model |
Q-400 |
|
Stereo 8 Ω |
400W |
|
Stereo 4 Ω |
700W |
|
Bridge 8 Ω |
1000W |
|
voltage gain |
31.3 dB |
|
Input impedance |
Rated Power 1KHz, Balanced input 20kohm |
|
Frequency Response |
20Hz~20KHz ± 1dB |
|
Lowest loaded impedance |
Stereo 4-8Ω , Parallel4-8Ω , Bridge 8-16Ω |
|
S/N Ratio |
> 96dB(1KHz, A Weight) |
|
THD+N |
< 0.14% (20Hz~ 20KHz) |
|
Damping factor |
> 350 8Ω : 20 Hz to 400 Hz |
|
Input sensitivity |
0.775V/1V/1.4V |
|
Power supply |
AC 220/50Hz (± 10%) |
|
Dimension (HWD) |
88x482x445mm |
|
Packing Dimension (HWD) |
190x 540x540MM (0.055CBM) |
|
N. W |
15Kg |
|
G. W |
16.5Kg |
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!
