Gold Member Since 2016
Audited Supplier
Guangzhou Dolsi Audio Equipment Co., Ltd.

Audio Amplifier, SMPS Amplifier, Switching Mode Power Supply Amplifier manufacturer / supplier in China, offering Two Channel Switch Mode (SMPS) Audio Amplifier, Sound System PRO Audio Speaker Professional Power Amplifier (GT Series), PA System PRO Audio Four Channel SMPS Speaker Power Amplifier and so on.

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Two Channel Switch Mode (SMPS) Audio Amplifier

FOB Price: US $1-500 / Piece
Min. Order: 30 Pieces
Min. Order FOB Price
30 Pieces US $1-500/ Piece
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Production Capacity: 2000PCS Per Month
Transport Package: 1PC/ Carton
Payment Terms: L/C, T/T

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Basic Info
  • Model NO.: DTA series (2 channel)
  • Certification: CE, RoHS, CCC, CB
  • Height: 2 U
  • OEM Production: Acceptable
  • MOQ: 1-50 Pieces
  • Specification: CE, RoHS, CB
  • HS Code: 851840009
  • Application: Commercial
  • Price: Please Contact Us for Prices
  • Output Pwoer: 400W-1500W at 8 Ohm
  • Channel: 2 Channel
  • Trademark: Dolsi brand or client′s logo
  • Origin: Guangzhou, China
Product Description
Switching Mode Power Supply (SMPS) Power Amplifier  DTA Series 

Two Channel Switch Mode (SMPS) Audio Amplifier




 Model No.DTA4.2DTA6.2DTA8.2DTA10.2DTA13.2DTA15.2
Output power at  8 ohm stereo 1kHz(HIA) with0.5% THD (per channel)400Wx2600Wx2800Wx21000Wx21300Wx21500Wx2
Output power at  4 ohm stereo 1kHz(HIA) with0.5% THD (per channel)750Wx21000Wx21200Wx21650Wx22100Wx22300Wx2
Output power at 8 ohm 1kHz(HIA)with0.5% THD 8ohm bridge mono1800W1900W2250W3350W4350W4600W
Voltage Gain32.8dB32.8dB35dB36dB37.8dB38.3dB
 Frequency Response(at 1 Watt)                                         20Hz-20kHz,+0/-1dB
Total Harmonic Distortion(THD)                                        <0.5%,20Hz-20kHz
Intermodulation Distortion(1MD) 60Hz and 7kHz at 4:1,from full rated output to -30dB                                                 ≤0.35%
Slew Rate                                                 >10V/us
Damping Factor(8 ohm),10Hz-400Hz                                                   >200
Signal-to-Noise Ratio (below rated power,20Hz to 20kHz,A-weighted)                                                 >100dB
 Crosstalk (below rated power) 
At 1 kHz                                                  -75dB
At 20 kHz                                                  -59dB
Input 5ensitivity for full rated power at 8 ohm                                           0.775V or 1.4V
Input Impedance(nominal) 
Balanced                                                 10K ohm
Unbalanced                                                  20K ohm
Protection features      Protection against short circuits, no-load, on/off muting, Rf interference.5table into reactive  or mismatched loads
Dimensions (WxHxD)                                           483x88x320 mm
 Net weight                                                   7.8Kg                           







This DTA Series adopt full bridge (SMPS) switching mode power supply with high efficiency and stability, third grade CLASS-H audio amplifier circuit. Both 2 and 4 channel are available. The main features are as the following: 

. Patented and elegant enclosure design. The aluminium front panel brings you the sense of high quality. Very light in weight and easy to install.
.Well-crafted machine with compact structure.
.Strong output power and applicable to a variety of applications.
. Integrated circuit ensuring excellent and independent output for the multi-region sound reinforcement system. 
.Advanced and full protection circuit against short-circuit, broken circuit, direct current, error matching, over-heat and no-load.
 .Well selected and strong material of inside components and the enclosure. Good anti-vibration. 
.Long-lasting performance stability 
.Good cooling system with automatic speed fan with high efficiency of heat dissipation.
.Accurat, and clean sound quality with very low distortion.
. Speakon® socket, binding post output connector, XLR input connector and speaker parallel connector.
.Well tested by AP testing machine to ensure strong stability.

Product packing: 

Each piece of product with polyfoam protection packed into a paper carton.  Or packed as per client's request.


Good Service to you:

1.  Manufacturing with Dolsi brand.

2.  Manufacturing with your brand ( OEM).

3.  Manufacturing with your design, your specification and your brand ( ODM). 

4. Closely following up, fluent communication, quick feedback and action to any of your query or request for sampling, order,  production,shipment, documents and after-sales service.  

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