Domc E4.4 4 Channel Professional Power Amplifier, 400W4 @8ω / 500W4 @4ω Stereo AMP with >100db Snr, 0.775V Sensitivity for Stage Commercial Audio Systems

• Customization: Available
• Type: Professional Amplifier
• Usage: KTV System
• Model NO.: E4.4
• Used For: Professional
• Tube Type: Transistor Amplifier
• Function: Amplifier Combined
• Sound Channel: 4.1
• Output Number: 4
• Voltage: AC 220V
• Element Number: Monoamplifier
• Conductive Mode: AB
• Weight: 17kg
• 8ω Stereo Power: 400W*4
• 4ω Stereo Power: 500W*4
• Rated Power: 0.775V
• Transport Package: Durable Double Cartons or Flight Case
• Specification: 470mm*485mm*88mm
• Trademark: DOMC or OEM
• Origin: Made in China
• HS Code: 8518400090
• Production Capacity: 500PCS Per Month
• Package Size: 53.50cm * 52.00cm * 13.80cm
• Package Gross Weight: 27.000kg

Product Description

Specification

8Ω Stereo power	400W*4
4Ω Stereo power	500W*4
S (rated power 8 ohms)	0.775V
Signal-to-noise ratio (below rated power 20Hz to 20kHz,-weighting)	> 100 dB
Harmonic distortion (THD) (20Hz - 20kHz)	< 0.5%
Intodulation distortion (60Hz and 7kHz at 4:1 full rated output to -30dB)	= / < 0.35%
F response (1W, 20Hz - 20kHz)	0 dB, -1 dB
Crosstalk (rated power)	1kHz: -5 dB; at 20kHz: - 59 dB
Damping factor (10Hz to 400Hz, 8 ohms)	> 20
Voltage gain	33dB
Conversion rate	> 10V/us
Dimensions (L*W*H)	470*485mm*88mm:
Net weight	17kg
Shipping weight	19kg

Advantages

 Supports mainstream 8Ω/4Ω speaker impedance matching, providing stable and consistent power output.  It can flexibly match professional speakers of different power and impedance (such as stage monitor speakers, KTV main speakers, and commercial space fill-in speakers). A single amplifier can drive four speakers, reducing equipment investment and meeting the sound reinforcement needs of various scenarios such as small stages, KTV rooms, and multi-functional halls. Its adaptability is far superior to single-power-segment amplifiers.

Production Details 

Product Model Type

Raw materials are strictly screened, and all components are assembled in-house, with traceable quality guaranteed  

We are DOMC Professional Audio Manufacturer, with full control over the entire process from supply chain production to sales, maintenance and support. We also offer 1:1 customization service.

Wide Range of Applications

Certifications

Company Profile

Domc Pro Audio Co., Ltd

DOMC Audio was awarded the "AAA Credit Enterprise" certification
Corporate credit rating is the most direct reflection of the health of the company's daily operating conditions, reflecting the company's ability to fulfill commercial contracts and social responsibilities.
In the development process of the company, DOMC Audio attaches great importance to credit construction, insists on integrity and mission, constantly improves various corporate systems, works hard and implements in integrity construction, brand building, standardization construction, etc., and strives to create standards The brand image of management and integrity first has created a credit delivery system with professional technology, high-quality products and one-stop service, which has won unanimous recognition from the market and customers. Looking forward to the future, DOMC Audio will continue to take integrity as the cornerstone, quality as the foundation, innovation to promote development, actively assume social responsibilities, establish a good reputation, play a leading role as a good example of an honest enterprise, and strive to be a practice in building an industry credit system. Travelers, jointly promote the high-quality development of the credit system in the audio industry!

FAQ

Q1: How do I choose the right power amplifier model for my speakers?

A: Match the amplifier's RMS power and impedance to your speakers first. Ensure the amplifier's RMS power is 1.2–1.5 times the speaker's rated power for optimal performance and protection. Meanwhile, confirm the impedance range (e.g., 4–8Ω) is compatible with your speaker system. Our sales team can provide a free matching solution based on your specific speaker parameters.

Q2: Is this amplifier suitable for outdoor large-scale performances?

A: Yes. Our professional power amplifiers are equipped with overheat protection, short-circuit protection and high-efficiency heat dissipation systems. For outdoor events, we recommend matching it with waterproof speaker cabinets and using dedicated power supply equipment to ensure stable operation in complex environments.

Q3: Can the amplifier support multi-channel audio output?

A: Different models have different channel configurations (2-channel, 4-channel, 8-channel are available). Please check the product specification sheet for detailed channel parameters, or contact us to confirm if it meets your multi-device connection needs.