20+ years engineering power amplifiers, professional speakers and line array systems. Your one-stop factory partner for global audio brands, distributors and integrators.
20+
Years R&D
Experience
60+
Export
Countries
50
In-House
Specialists
Founded in Guangzhou, Haozhiseng Audio has spent over two decades mastering the art of professional audio manufacturing. Our 50-member team brings deep expertise in R&D, circuit design, acoustic tuning and full-chain production management.
Trusted by brands across 60+ countries, we deliver factory-direct quality with the flexibility to support everything from custom samples to high-volume OEM/ODM orders.
20+
Years Experience
In-house R&D and manufacturing since 2004
60+
Countries Served
North America, Europe and South America
50
Specialists
Dedicated engineering and production team
18h
Daily Support
Online service for global customers
Engineered for professional installations, events and global audio brands.
High-performance professional amplifiers engineered for reliability, efficiency and superior audio fidelity in demanding live and installed environments.
3-7days
Lead Time
2yr
Warranty
60+
Countries
Full-range professional loudspeakers designed for concerts, theaters, stadiums, banquet halls and permanent commercial installations.
Scalable line array solutions delivering precise sound coverage for large venues, outdoor events and fixed installations worldwide.
Inquire NowPrecision-engineered DSP plate amplifier modules for active speakers, subwoofers and line array systems. Full OEM/ODM customization available -- from circuit design to private labeling.
Single-channel DSP plate amplifier module engineered for full-range active speaker cabinets. Compact form factor with integrated digital signal processing for precise acoustic tuning.
Dual-channel Class D DSP amplifier module (H155S) purpose-built for active speaker cabinets. High efficiency topology with advanced DSP control for superior sonic performance.
2.1-channel DSP plate amplifier module optimized for passive subwoofers and line array systems. Delivers powerful low-frequency performance with precise crossover and DSP management.
Factory-direct power amplifiers available for private labeling, circuit customization, acoustic tuning and full OEM/ODM branding. Class D & Class TD platforms.
18000W 4-Channel 1U Class D amplifier with FIR DSP and Network Audio control.
Customizable
12600W 2-Channel 1U Class D PA Subwoofer Power Amplifier for professional audio systems.
Customizable
26800W 4-Channel Class D High Power Subwoofer Amplifier engineered for large-scale live sound and touring rigs.
Customizable
10000W 4-Channel Professional Audio Power Amplifier with PFC Switching Power Supply for stable, efficient performance.
Customizable
RMS POWER
20,000W
20000W 4-Channel Class D DSP Subwoofer Power Amplifier with Ethernet network control.
Customizable
20000W 4-Channel Class D DJ Subwoofer Power Amplifier for high-impact live sound and touring.
Customizable
Custom amplifier modules for your brand.
Private labeling · Circuit customization · Acoustic tuning · Fast delivery
HA1804
1. 4 × 1800W @ 8Ω / 4 × 2800W @ 4Ω / 4 × 4500W @ 2Ω 2. High-Efficiency Class D Power Amplifier 3. Lightweight 1U Rack-Mount Design 4. PFC Wide Voltage Input: 90V–260V 5. Function Indicators & Short-Circuit Protection
DPB48
4 inputs and 8 outputs: Female XLR input connectors and male XLR output connectors. 96 kHz sampling: Supported by 32-bit A/D and D/A conversion. 64-bit floating-point DSP: Handles routing, filtering, equalization, and dynamics processing. Independent FIR filtering: Available on every input and output, supporting filter orders up to 1024. 12-band EQ per channel: Includes parametric EQ, shelving filters, and first- and second-order all-pass filters. Flexible output routing: Assign an individual input or a combination of inputs to each output. Comprehensive crossover options: Bessel, Butterworth, and Linkwitz-Riley filters with slopes up to 48 dB/octave. Up to 1000 ms delay per channel: Supports loudspeaker time alignment with fine adjustment. Output compression and limiting: Selectable PEAK or RMS detection. Two-band dynamic EQ per output: Provides level-dependent frequency adjustment. USB, RS485, and Ethernet control: Supports PC-based setup and system management. 60 user programs: Store and recall configurations, including FIR parameters. 2-inch TFT color display: Front-panel controls and LED meters provide direct access to settings and signal status.
HA7K
wo-channel Class TD amplification for professional sound reinforcement. Flexible RMS output: 2 × 1450W at 8Ω, 2 × 2800W at 4Ω, and 2 × 3500W at 2Ω. Bridged output: 5600W at 8Ω or 7000W at 4Ω. Pure copper heat sink for effective heat dissipation. High-quality output transistors for professional amplification. Low distortion: THD below 0.1% at 1W across 20 Hz–20 kHz. Signal-to-noise ratio above 112 dBA for a low noise floor. Selectable voltage gain from 23 dB to 44 dB. Balanced XLR inputs with binding-post and speakON speaker outputs. Compact 2U enclosure for standard professional audio racks.
HA9K
High-power, 2-channel output: Up to 9000W combined RMS output at 2Ω. Class TD amplification: Designed for efficient power delivery and low-distortion audio reproduction. Switch-mode power supply: Supports a compact, high-power amplifier design. Flexible operating configurations: Stereo output into 8Ω, 4Ω, or 2Ω loads, plus bridged mono operation. Selectable voltage gain: Eight settings from 23 dB to 44 dB. Adjustable peak output voltage: Independent channel settings help match output limits to the loudspeaker system. Professional connections: Balanced XLR inputs, binding posts, and speakON outputs. Integrated protection: Includes short-circuit, DC voltage, turn-on/off transient, and current-inrush protection. Compact 2U construction: A 13 kg net weight supports portable racks and permanent installations.
HA13K
High-power, 2-channel amplification: Suitable for compatible subwoofers and full-range loudspeakers. Flexible output configurations: Supports 8Ω, 4Ω, and 2Ω loads per channel. Class TD output circuitry: Combines efficient power delivery with low-distortion audio reproduction. Pure copper heatsink: Helps transfer heat away from power components. Original ON transistors: Used in the amplifier’s power circuitry. Original Neutrik connectors: Provide professional audio connections. Independent level controls: Front-panel, 31-position detented potentiometers for each channel. Integrated protection: Covers short circuits, DC voltage, turn-on/off transients, and current inrush.
HA2504
Four amplification channels: Powers multiple loudspeaker circuits from one compact unit. Flexible output configurations: 4 × 250W at 8Ω, 4 × 450W at 4Ω, or 2 × 800W bridged at 8Ω. Efficient Class-D amplification: Helps reduce heat generation and power consumption. Space-saving 1U design: Fits neatly into professional audio racks. Lightweight construction: Just 4.2 kg net weight for convenient handling and installation. Professional XLR inputs: Connects to compatible mixers, processors, and other audio equipment. Low-distortion performance: THD+N below 0.1% at 1 kHz, 1W into 8Ω. Comprehensive protection: Short-circuit, DC, overvoltage, undervoltage, overcurrent, and overtemperature protection. Two-year warranty: Backed by Haozhiseng Audio.
HA2506
Six amplification channels: Powers multiple loudspeaker circuits from one compact unit. Flexible output power: 6 × 250W at 8Ω, 6 × 450W at 4Ω, or 3 × 800W bridged at 8Ω. High-efficiency Class-D design: Helps reduce heat generation and power consumption. Slim 1U chassis: Saves rack space in professional audio installations. Lightweight construction: A net weight of 4.8 kg simplifies transport and installation. Efficient cooling: Copper heat sink and cooling system help dissipate heat. Regulated switch-mode power supply: Supports consistent amplifier operation. Low-distortion audio: THD+N below 0.1% at 1 kHz, 1W into 8Ω. Comprehensive protection: Short-circuit, DC, overvoltage, undervoltage, overcurrent, and overtemperature protection.
HA2508
8-channel output: Powers multiple loudspeaker circuits from one compact amplifier. Flexible power configurations: 8 × 250W at 8Ω, 8 × 450W at 4Ω, or 4 × 800W bridged at 8Ω. High-efficiency Class-D amplification: Helps reduce heat generation and power consumption. Compact 1U rackmount chassis: Saves space in professional audio racks. Low distortion: THD+N below 0.1% at 1 kHz, 1W into 8Ω. Clear audio performance: Signal-to-noise ratio above 109 dB at 1 kHz. Integrated protection: Short-circuit, DC, overvoltage, undervoltage, overcurrent, and overtemperature protection. Separate voltage options: Available in 110V or 220V versions.
HAS8 Active
Built-in amplification for convenient operation without a separate external power amplifier. 8-inch LF driver and 1.5-inch HF compression driver for two-way full-range reproduction. 69 Hz–20 kHz frequency response (±3 dB) for speech, vocals, and music. 120 dB maximum SPL in a compact enclosure. 90° horizontal × 50° vertical nominal coverage with a rotatable horn. Versatile cabinet design for PA and stage monitor applications. Braced 15 mm plywood enclosure with a textured black polyurethane finish. 1.5 mm perforated steel grille with acoustic foam backing to help protect the drivers. 13 kg net weight for manageable transport and setup.
HAS10 Active
Built-in amplification for operation without a separate external power amplifier. 10-inch LF driver and 2-inch HF compression driver for two-way full-range reproduction. 65 Hz–20 kHz frequency response (±3 dB) for speech and music reinforcement. 125 dB maximum SPL in a compact enclosure. 90° horizontal × 50° vertical nominal coverage with a rotatable horn. Multi-angle cabinet design for main PA and stage monitoring. 15 mm plywood construction with a textured black polyurethane finish. 1.5 mm perforated steel grille with acoustic foam backing to help protect the drivers.
HAS12 Active
Built-in amplification for convenient system setup. 12-inch LF driver and 2-inch HF compression driver for two-way full-range reproduction. 55 Hz–20 kHz frequency response (±3 dB) for music and vocal reinforcement. 128 dB maximum SPL for demanding sound applications. 90° horizontal × 50° vertical nominal coverage with a rotatable HF horn. Multi-angle cabinet for main PA and stage monitor use. 15 mm plywood enclosure with a black catalyzed polyurethane finish. 1.5 mm perforated steel grille with acoustic foam backing to help protect the drivers.
HA18SUB Plus
900W RMS power handling for professional bass reinforcement. Single 18-inch neodymium woofer for dedicated low-frequency reproduction. 30 Hz–100 Hz frequency response for extended bass coverage. 140 dB maximum SPL for high-output sound reinforcement. 8Ω nominal impedance for amplifier matching and system configuration. Russian birch plywood cabinet for durable enclosure construction.
HAD210 Passive
Dual 10-inch neodymium woofers for powerful low- and mid-frequency reproduction. One 3-inch neodymium HF driver for clear vocals and detailed high frequencies. Passive design for use with external amplification and loudspeaker processing. 143 dB maximum SPL for high-output sound reinforcement. 56 Hz–20 kHz frequency response for music and speech. 2 × 4-pin Neutrik connectors for professional speaker cable connections. Russian birch plywood cabinet with a durable waterproof polyurea paint finish. Dedicated rigging hardware for professional line array assembly. 30 kg cabinet weight and compact dimensions for portable and installed systems.
HAD210 Active
Dual 10-inch neodymium woofers for powerful low- and mid-frequency reproduction. One 3-inch neodymium HF driver for clear vocals and detailed high frequencies. Built-in DSP plate amplifier combining amplification and digital signal processing. 143 dB maximum SPL for high-output professional sound reinforcement. 56 Hz–20 kHz frequency response for music and vocal applications. Russian birch plywood cabinet with waterproof polyurea paint for a durable, textured finish. Safe rigging hardware designed for professional line array deployment. 110V or 220V voltage versions to suit different power requirements.
HA18SUB Active
Professional 18-inch active subwoofer 1 × 18-inch neodymium woofer 800 W RMS power handling Maximum SPL: 138 dB Built-in active amplifier Bass reflex enclosure design Birch plywood cabinet construction Waterproof polyurea coating Rugged design for professional touring and installation applications
HA18P
1 × 18-inch neodymium woofer 2400W power handling 137dB maximum peak SPL 30Hz–150Hz frequency response Horn-loaded subwoofer design Built-in 1-channel DSP plate amplifier Mute, polarity, gain, delay, limiter, mixer, EQ and crossover Russian birch plywood cabinet Durable polyurea coating
HA118
18-inch neodymium low-frequency driver 1200W RMS power handling High sensitivity of 103 dB Advanced acoustic loading design Improved ventilation and heat-dissipation structure Premium 18 mm birch plywood enclosure Powerful bass performance from a compact cabinet Dual Speakon NL4 connectors Durable construction for professional use
HA2504S
4 × 250W output power at 8Ω 4 × 450W output power at 4Ω 2 × 800W bridged output power at 8Ω High-efficiency Class D amplifier technology Four independent amplifier channels Compact 1U rack-mount design Balanced XLR input connectors Professional Speakon output connectors Low distortion and high signal-to-noise ratio Forced-air cooling system Comprehensive amplifier protection Separate 110V and 220V versions available Lightweight design for portable and fixed applications
Need a custom OEM/ODM product?
Factory-direct pricing · 3-7 day lead time · 60+ countries served
Explore our full product catalogue.
Factory-direct pricing · Fast lead times · Full OEM/ODM customization available.
Full circuit design, acoustic tuning and tooling development under one roof -- ensuring stable quality and cost efficiency.
3-7 day standard lead time for bulk orders. 50 amplifiers within 5 days. Trial samples and custom runs supported.
100% full inspection before every shipment. Aging tests and acoustic performance verification on every unit.
Products meet international safety and electrification standards for North America, Europe and South America.
Official 2-year warranty on all products with lifetime technical support included for every client.
50-member professional team with 18-hour daily online service supporting global clients across all time zones.
From custom samples and small trials to large-volume mass production -- flexible capacity for every stage of your business.
Eliminate middlemen. Factory-direct pricing ensures the best value for your supply chain and long-term cost savings.
Every product follows a rigorous multi-stage manufacturing workflow -- from raw materials to final shipment.
Manufacturing Flow
Manufacturing Flow
Incoming QC
Material inspection
Assembly
Process monitoring
Aging Test
Performance verified
100% Inspected
Ready to ship
We offer complete OEM and ODM solutions tailored to your brand. From private labeling and custom enclosure design to full acoustic tuning and compliance documentation -- we handle every detail so you can focus on growing your brand.
Start Your ProjectYour brand, logo and identity on every product.
Enclosure colors, shapes and panel layouts.
Professional DSP and acoustic optimization for your spec.
CE, FCC and market-specific certifications prepared.
OEM/ODM Process
Share your requirements, specs and target market.
Custom design, prototyping and sample approval.
Full-chain manufacturing with QC at every stage.
Inspection, packaging and fast global shipping.
Haozhiseng Audio has built a strong reputation across North America, Europe and South America. Our products power concerts, installations and commercial venues from the USA to Germany, Mexico to Turkey.
North America
USA · Mexico · Guatemala
Europe
Germany · Spain · France · Italy · Turkey
South America
Venezuela · Dominican Republic · + more
Pro Audio Brands
Distributors & Wholesalers
Event Production Companies
System Integrators
Large Retailers & Cross-Border Sellers
From intimate theaters to massive outdoor festivals -- our systems deliver.
Line array systems deployed for large-scale outdoor festival with 10,000+ audience capacity.
Germany · 2,000-Seat Venue
Custom professional speaker arrays installed in a 2,000-seat performing arts theater in Germany.
High-power amplifier arrays delivering uniform coverage across a multi-tier sports stadium.
Luxury Event Venue
Discreet ceiling and wall speaker installations for a luxury event venue requiring pristine audio clarity.
Commercial Install -- Turkey
Long-term fixed installation for a multi-floor retail and entertainment complex in Istanbul.
Tell us about your venue, project scope and requirements. We'll provide a tailored solution and quote.
CE
Europe
FCC
USA
RoHS
Compliance
ISO 9001
Quality Mgmt
ETL
North America
WEEE
EU Directive
Additional certifications available upon request. Contact us for market-specific compliance documentation.
Tell us about your requirements and we'll get back to you within 18 hours. Factory-direct pricing, flexible MOQ and full customization available.
18-Hour Response
Daily online service for global clients
Detailed Quotation
Itemized pricing with specs and lead time
Full Customization
OEM/ODM from sample to mass production
Phone
+86 188 9849 8996Address
Room C3585, 3F, No. 22, Lane 7,
Yongtai Zhihe St, Yongping St,
Baiyun District, Guangzhou
