The AC HD8000 is a professional 2-channel Class H power amplifier designed for home KTV systems, dedicated karaoke rooms, restaurants, bars, lounges, clubs, and professional entertainment installations.
Delivering 740W × 2 channels at 8Ω and 1160W × 2 channels at 4Ω, the HD8000 provides strong, stable power for demanding passive speaker systems while maintaining clean dynamic performance.
For applications requiring higher output from a single channel, the HD8000 also supports Bridge Mode with up to 2380W @ 8Ω.
With high damping factor, selectable input sensitivity, professional audio connectivity, active cooling, and built-in protection, the HD8000 is a reliable power-amplifier solution for both karaoke and professional sound systems.
Key Features
- 740W × 2CH @ 8Ω
- 1160W × 2CH @ 4Ω
- 2380W × 1 @ 8Ω Bridged
- Professional 2-channel power amplifier
- Class H amplifier design
- High damping factor for strong speaker control
- Selectable input sensitivity
- Professional balanced audio input
- Variable-speed cooling fans
- Temperature-controlled cooling system
- Built-in amplifier protection
- Designed for professional passive speakers
- Ideal for karaoke, KTV, bars, lounges, clubs, and entertainment systems
- US Version: AC 120V / 60Hz
Powerful Output for Professional Speaker Systems
The AC HD8000 delivers:
740W × 2CH @ 8Ω
and:
1160W × 2CH @ 4Ω
This provides the power and headroom required by many professional passive karaoke and PA speakers.
Adequate amplifier headroom is especially important in karaoke systems, where strong vocals and music peaks can require substantially more short-term output than average listening levels.
When properly matched with the speakers, the HD8000 can provide:
- Clearer high-level vocals
- Stronger musical dynamics
- Tighter low-frequency performance
- Greater output capability
- More stable operation at demanding listening levels
Class H Amplifier Design
The HD8000 uses a Class H amplifier topology designed to deliver high output power while improving efficiency compared with conventional fixed-rail Class AB amplifier designs.
This allows the amplifier to provide substantial output while maintaining practical thermal performance during extended operation.
It is well suited for systems used for long periods in:
- Home KTV rooms
- Commercial karaoke rooms
- Restaurants
- Bars and lounges
- Clubs
- Entertainment venues
Flexible 8Ω, 4Ω & Bridge Operation
The HD8000 supports multiple operating configurations for different system requirements.
8Ω Stereo
740W × 2CH
An excellent match for many professional 8Ω passive speaker systems.
4Ω Stereo
1160W × 2CH
Provides higher output when driving compatible 4Ω speaker loads or properly configured multi-speaker systems.
8Ω Bridge Mode
2380W × 1CH
Bridge Mode combines both amplifier channels to provide significantly higher output into a compatible 8Ω load.
This can be useful for selected high-power speaker or subwoofer applications where the system has been specifically designed for bridged operation.
High Damping Factor for Better Speaker Control
The HD8000 provides a damping factor greater than 350.
High damping factor helps the amplifier maintain better electrical control over the connected speaker drivers, particularly at lower frequencies.
When paired with a properly matched speaker system, this can contribute to:
- Tighter bass
- Better transient response
- More controlled woofer movement
- Cleaner low-frequency reproduction
Selectable Input Sensitivity
The HD8000 provides selectable input sensitivity settings:
This allows the amplifier to be matched more easily with different upstream audio equipment, including:
- Karaoke DSP processors
- Digital mixers
- Audio processors
- Professional preamplifiers
- Other line-level audio sources
For a professional karaoke system, the HD8000 can be paired with an AC Karaoke DSP processor for detailed microphone, music, effect, crossover, and system tuning.
Professional Cooling System
High-output amplifiers generate heat during demanding operation.
The HD8000 uses dual variable-speed cooling fans with temperature-controlled operation to help maintain stable internal temperatures.
Fan speed automatically responds to operating conditions, providing additional cooling when the amplifier is working harder.
This helps maintain reliable operation during extended karaoke, music, and entertainment use.
Built for Professional Karaoke Systems
The HD8000 is particularly well suited for karaoke systems where both vocal clarity and music dynamics are important.
A typical system can be configured as:
Karaoke Player / Audio Source
↓
Karaoke DSP Processor
↓
AC HD8000 Power Amplifier
↓
Passive Speakers
Using a separate DSP processor and power amplifier provides greater system flexibility than a basic all-in-one amplifier.
Different speakers, room sizes, and performance requirements can be matched more precisely through proper DSP tuning and amplifier selection.
Professional System Integration
The HD8000 is designed to work with professional line-level audio equipment and passive speakers.
It is an excellent choice for systems using dedicated karaoke processors such as:
- AC M-Series DSP Processors
- Professional mixers
- External crossovers
- Speaker-management DSP systems
This makes it suitable for both high-quality home installations and commercial sound systems.
Technical Specifications
Brand: AC
Model: HD8000
Product Type: Professional 2-Channel Power Amplifier
Amplifier Class: Class H
Output Channels: 2
Rated Power @ 8Ω Stereo: 740W × 2CH
Rated Power @ 4Ω Stereo: 1160W × 2CH
Bridge Power @ 8Ω: 2380W × 1CH
Frequency Response: 10Hz–20kHz (±0.3dB)
Total Harmonic Distortion: <0.1% @ 1kHz
Signal-to-Noise Ratio: ≥95dB
Damping Factor: >350
Crosstalk: ≥80dB
Input Sensitivity: 0.775V / 1.0V / 1.4V Selectable
Input Impedance: 20kΩ Balanced / 10kΩ Unbalanced
Cooling: Dual Variable-Speed, Temperature-Controlled Fans
Power Supply: AC 120V / 60Hz – US Version
Dimensions: 19.0 W × 3.5 H × 18.2 D in
(483 × 89 × 463.5 mm)
Net Weight: 38.6 lb (17.5 kg)
Ideal Applications
- Home KTV Systems
- Dedicated Karaoke Rooms
- Commercial KTV Rooms
- Restaurants
- Bars & Lounges
- Clubs
- Entertainment Venues
- Professional Passive Speaker Systems
- High-Output Audio Installations
Frequently Asked Questions
How much power does the AC HD8000 produce at 8Ω?
The HD8000 delivers 740W per channel × 2 at 8Ω.
How much power does it produce at 4Ω?
The HD8000 delivers 1160W per channel × 2 at 4Ω.
Can the HD8000 be bridged?
Yes. In Bridge Mode, the HD8000 can deliver up to 2380W into an 8Ω load.
Is the HD8000 suitable for karaoke?
Yes. The HD8000 is well suited for professional karaoke and KTV systems when properly matched with compatible passive speakers and a Karaoke DSP processor.
Does the HD8000 include karaoke effects?
No. The HD8000 is a dedicated power amplifier.
For microphone EQ, Echo, Reverb, feedback suppression, crossover, delay, and other karaoke processing, it should be paired with a separate Karaoke DSP processor.
What speaker impedance does the HD8000 support?
The HD8000 supports professional speaker configurations including 8Ω and 4Ω stereo operation, as well as 8Ω bridged operation when properly configured.
What type of speakers can I use with the HD8000?
The HD8000 can power a wide range of compatible professional passive speakers. Speaker impedance, power handling, quantity per channel, and required output level should all be considered when designing the system.
