Dolsi Audio Equipment Co., Ltd
| Packaging Details | 1pc/paper carton |
| Payment Terms | TT, T/T, Western Union,PAYPAL |
| Supply Ability | 5000pcs per month |
| Delivery Time | 3-5 DAYS for sample, 10-30 days for bulk |
| Channel | 4 |
| Enclosure material | metal |
| Outputpower | 580-1650W per channel at 4 ohm |
| Operating voltage | Wide voltage 90-264V |
| PFC | Yes, PFC (power factor correction) built-in |
| Height | 44mm |
| Weight | 6kg |
| Place of Origin | Guangzhou, China |
| Brand Name | Dolsi |
| Certification | CE, CB, CCC |
| Model Number | AT 2 channel |
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Product Specification
| Packaging Details | 1pc/paper carton | Payment Terms | TT, T/T, Western Union,PAYPAL |
| Supply Ability | 5000pcs per month | Delivery Time | 3-5 DAYS for sample, 10-30 days for bulk |
| Channel | 4 | Enclosure material | metal |
| Outputpower | 580-1650W per channel at 4 ohm | Operating voltage | Wide voltage 90-264V |
| PFC | Yes, PFC (power factor correction) built-in | Height | 44mm |
| Weight | 6kg | Place of Origin | Guangzhou, China |
| Brand Name | Dolsi | Certification | CE, CB, CCC |
| Model Number | AT 2 channel |
4 Channel Class-D 1U PFC Digital Power Amplifier
. Strong output power 4x580W - 4x1650W at 4 ohm in compact 1U rack space.
. PFC (Power factor correction) built-in.
. Wide operating voltage range ~90-264V. No worry about unstable power voltage.
. Smaller size and lighter weight for easy carry and installation.
Specifications
| Model No. | AT435 | AT450 | AT460 | AT480 | AT4100 | |
| Channel number | 4 channel | 4 channel | 4 channel | 4 channel | 4 channel | |
| Rated output power | 8Ω | 350Wx4 | 500Wx4 | 650Wx4 | 800Wx4 | 1000Wx4 |
| Rated output power | 4Ω | 580Wx4 | 800Wx4 | 1050Wx4 | 1300Wx4 | 1650Wx4 |
| Bridged output power | 8Ω | 1160Wx2 | 1600Wx2 | 2100Wx2 | 2600Wx2 | 3300Wx2 |
| Circuit Category | CLASS D | CLASS D | CLASS D | CLASS D | CLASS D | |
| Voltage Gain | 40.8/38.6/32 | 40.8/38.6/32 | 41.2/39/32 | 42.7/40/32 | 42.7/40.5/32 | |
| THD (total harmony distortion) | ≤0.035% (@ 8Ω,1kHz,1/8 rated power) | ≤0.05% (@ 8Ω,1kHz,1/8 rated power) | ||||
| IMD(intermodulation distort.) | ≤0.15% (@ 8Ω,1kHz,1/8 rated power) | |||||
| S/N Ratio (20Hz-20Khz,4 Ohms) | >106dB A | |||||
| Cross-talk (1kHZ, 4 Ohms) | >40dB | |||||
| Frequency response | 10Hz to 20k Hz,+/-1dB | |||||
| Input impedance | balanced 20K/ non-balanced 10K | |||||
| Damping factor (10-400Hz,8Ohms) | ≥600 | |||||
| Slew Rate | ≥20v/uS | |||||
| Input sensitivity | 0.775V,0dB | |||||
| Protection funtion | short circuit, direct current, over-load and amplitude limit. | |||||
| Control knobs | Power ON/OFF switch,Volume control in front panel . STEREO/BRIDGE/MONO, switch in rear panel . | |||||
| LED indicators | CLIP/-10dB/SIGNAL/MONO/BRIDGE/STATUS indicators in front panel | |||||
| Power delay | 4 seconds | |||||
| Input interface | XLR input socket | |||||
| Output interface | SPEAKON connector | |||||
| Size (WxHxD) | 483x44x228mm | |||||
| Net weight | 6.0kg | 6.2kg | 6.3kg | 6.9kg | 7.10kg | |
PRODUCT FEATURES:
DOLSI AT Series 4 channel digital power amplifier with Class D circuit category, is a new milestone in amplfier development. PFC, 90-265V is used inside. Advanced Class D PCB module and SMPS power supply module are used to obtain high efficiency and stability. It has very high power density, which makes the amplifier to reach powerful output in a very small shell space.
. Unique and elegant enclosure design. PFC, 90-265V is applied .
. Compact structure with only 1U height and 9" depth and light weight, easy to move and install.
. Fixed switch frequency Class-D PCB module.
. Soft resonant switching power supply LLC module.
. Active power factor correction technique (FPC), can work with high stability under full
voltage range 90-264V .
. High efficiency loudspeaker EMF absorption system.
. Unique peak clipping limiter and ripple Elimination.
. Low electricity consumption.
. Nice cooling system with quality fans to make wind flow front to the rear.
. Accurate volume control, switch on/off, signal, clip and protection LED light in front panel.
. Fully automatic protections against direct current protection, over heat, over load, on/off switching, RF and amplitude limit.
. XLR balance input and professional SPEAKON output connectors.
. Stereo ,bridge and mono mode selection pull switch is set on back panel.
. Good choice for applications in medium size live show, theatre system, meeting hall, medium size outdoor event, and any suitable flow performance.
Company Details
Business Type:
Manufacturer,Exporter
Year Established:
2004
Employee Number:
50~100
Ecer Certification：
Site Member
Our logo DOLSI, the pronunciation is similar with Chinese Pinyin "douniushi" which means matador. The matador, originating from Spain, is famous all over the world with perfect combination of confidence, art and power. With over ten years of production... Our logo DOLSI, the pronunciation is similar with Chinese Pinyin "douniushi" which means matador. The matador, originating from Spain, is famous all over the world with perfect combination of confidence, art and power. With over ten years of production...
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