HT42000 3U 4 Channel 4x2000W Class H Power Amplifier
4x2000W@8Ω / 4x3000W@4Ω / 4x5000W@2Ω
HT42000 is a 3U 4-channel Class H power amplifier delivering massive power output, exceptional stability, and outstanding efficiency. Designed for dual 18 inch subwoofers, large-scale touring systems, and professional sound reinforcement, it provides powerful bass control and reliable performance even under continuous high-power operation.
Quality is our culture
Built for stable output, verified performance,and long-term reliability
5 Rounds of QC Testing
Every amplifier passes five QC inspections before shipment to ensure consistent performance.
8-Hour Aging Test
Each unit completes an 8-hour aging test to verify stable operation under real working conditions.
100% Copper Transformer
High-quality copper transformers help ensure stable power output and long-term reliability.
100% Real Wattage
True rated power output gives system integrators and venues dependable amplifier performance.
3-Year Warranty
Long-term warranty support gives buyers confidence in product quality and after-sales service.
Description
Extreme 4-Channel Class H Power
4x2000W@8Ω / 4x3000W@4Ω / 4x5000W@2Ω The HT42000 is a high-output 3U Class H power amplifier built to deliver massive power across four channels, making it ideal for large-scale professional sound reinforcement systems.
Massive Current Capacity, Stronger Output
Equipped with a high-voltage transformer and large-capacity capacitors, the HT42000 provides substantial current reserves for powerful, punchy output and stable performance under demanding loads.
Professional-Grade Cooling and Protection
Four intelligent cooling fans work with comprehensive protection against overheating, short circuits, output DC and power-on faults, helping the amplifier maintain reliable operation during continuous high-power use.
Parameter
| Model | HT41500 | HT41800 | HT42000 |
|---|---|---|---|
| 8Ω stereo power | 4x1500W | 4x1800W | 4x2000W |
| 4Ω stereo power | 4x2250W | 4x2700W | 4x3000W |
| 2Ω stereo power | 4x3750W | 4x4500W | 4x5000W |
| 8Ω bridge power | 2x4500W | 2x5400W | 2x6000W |
| Height | 4ch/3U | ||
| Frequency response | 20Hz-20kHz/+-0.5dB | ||
| THD | <0.05% | ||
| S/N ratio | >110dB | ||
| Input sensitivity | 0.775V/1V/1.4V | ||
| Damping factor | >500 | ||
| Crosstalk | >35dB | ||
| Slew rate | 20V/us | ||
| Input impendance | balance 20KΩ , unbalance 10KΩ | ||
| Cooling system | 4 pcs intelligent fan,from front to back exhaust cooling system | ||
| Protections | Power-on buffer, overheating protection, short circuit protection,output DC protection | ||
| Power supply | 200-240V/50-60Hz | ||
| Packing size | 805x595x222mm | ||
| Gross weight（KG） | 48 | 49 | 50 |
Video
About Us
Guangzhou Fedaxy Audio Equipment Co., Ltd. is a professional power amplifier manufacturer headquartered in Panyu, Guangzhou, the core audio industry cluster of China. Built on over 15 years of R&D and production experience, we integrate design, production, sales and technical service under one roof.
We specialize in Class D, Class TD, Class H and Class AB amplifiers, certified with ISO9001, CE, ROHS and CB, and strictly implement 6S on-site management. More than 90% of our products are exported to over 100 countries across Europe, America, Asia and Africa.
Each amplifier passes 5 rounds of QC testing before shipment to ensure consistent performance. We conduct an 8-hour aging test to keep components stable during operation, use 100% copper transformers, guarantee real wattage output, and provide a 3-year warranty for long-term reliability.
Professional Team
Reception Area
Modern Office Environment
Manufacturing & Quality Control
Fedaxy ensures stable amplifier quality through standardized production, aging tests, performance testing, and efficient warehouse management
Amplifier Aging Test
Precision Assembly & Inspection
Electrical Performance Testing
Standardized Production Line
Components Warehouse Management
FAQ
Fedaxy FAQ covers products, customization, quality control, and export support
Are you a factory or a trading company?
We are a professional power amplifier manufacturer based in Panyu, Guangzhou, China. We integrate product development, production, testing, sales, and technical support under one roof.
What type of audio products do you manufacture?
We manufacture professional power amplifiers, including Class D, Class TD 1U, Class TD 2U/3U, Class H, and Class AB series for KTV rooms, clubs, stadiums, conference halls, stage systems, and commercial PA sound systems.
Can you provide OEM or ODM amplifier services?
Yes. We supportOEM, ODM , OBM / OIM / SKD cooperation, including logo customization, front panel design, packaging design, product configuration adjustment, and project-based amplifier solutions for global distributors and audio brands.
How do you control product quality?
Each amplifier is produced under a strict quality control process, including material inspection, PCB assembly inspection, aging test, performance testing, safety inspection, and final inspection before shipment.
Do your amplifiers support international markets?
Yes. More than 90% of our products are exported to overseas markets, including Asia, Africa, Europe, America, and other regions. We can support international buyers with export packaging and flexible cooperation terms.
What payment and shipping terms do you support?
We support common international payment methods and trade terms, including T/T, Western Union, FOB, CIF, CNF, FCA, EXW, and DDU. Shipping can be arranged through major ports such as Nansha, Shekou, Yantian, and Huangpu.
Global Shipment & Secure Container Loading
Fedaxy ensures stable amplifier quality through standardized production, aging tests, performance testing, and efficient warehouse management
CE Compliance Certificates for Amplifiers
Certified amplifier solutions with CE, EMC, RoHS, and LVD compliance to ensure reliable quality and international market standards
