Amplifier 3in1 HQsing PRO-4000X

HQsing Pro 4000X
– Upgraded 3-in-1 Karaoke Amplifier

1. Product
Overview

HQsing Pro 4000X is
an upgraded version of the Pro 4000, designed for modern home karaoke systems.
The unit integrates an Amplifier, Mixer, and Digital Processor into a
single device, allowing users to build a clean and professional karaoke setup
without needing multiple separate components.

With 400W RMS
output power, the Pro 4000X delivers strong, clear, and stable sound
performance for home karaoke rooms or small entertainment spaces. The unit
supports multiple popular connections such as Bluetooth, Optical, HDMI, and
RCA, making it easy to connect directly to a Smart TV, smartphone, or
karaoke player.

A key upgrade of the
Pro 4000X is the addition of four XLR Balanced Outputs (Left / Right /
Center / Sub). This allows the system to connect directly to active
speakers or expanded sound zones, providing greater flexibility for
installation.

2. Key Features
of HQsing Pro 4000X

3-in-1 Amplifier
– Compact and Convenient

The Pro 4000X
integrates a Mixer, DSP Processor, and Power Amplifier into a single
unit. This design keeps the karaoke system clean and simple, reduces cable
clutter, and makes it easy for any family to operate.

Powerful 400W
Output

With a true 400W
RMS output, the amplifier can easily drive a pair of medium-power passive
karaoke speakers, delivering strong, clear sound without distortion in living
rooms or home karaoke spaces.

Flexible
Connectivity

The device supports
multiple modern input options:

• HDMI
• Optical Digital
• Bluetooth 5.0
• RCA

These connections
allow users to stream music or karaoke directly from Smart TVs, smartphones,
karaoke players, or other audio sources.

Upgraded XLR
Outputs for Active Speakers

Unlike the Pro 4000,
the Pro 4000X features four XLR Balanced Outputs:

• Left
• Right
• Center
• Sub

These outputs allow
direct connection to active speakers, powered subwoofers, or expanded audio
systems, making the setup more flexible for indoor or outdoor
installations.

User-Friendly
Controls for Everyone

The front panel is
designed with simple controls using three quick-adjust knobs:

• MIC
  (Microphone)
• EFF (Echo /
  Reverb)
• MUSIC
  (Background Music)

Users can quickly
adjust volume and effects by turning the knobs, without needing any technical
knowledge.

3. Real-World
Sound Experience

The Pro 4000X
delivers a balanced and pleasant sound profile suitable for various
uses:

• Home karaoke singing
• Relaxing music listening
• Birthday parties or family gatherings
• Background music for nail salons, spas,
  or small cafés

With a frequency
response of 20Hz – 20kHz, SNR > 90dB, and THD < 0.05%,
the amplifier reproduces sound with clear vocals, solid bass, detailed mids,
and smooth treble, making it suitable for both karaoke and music playback.

4. Key Technical
Specifications

• Output Power: 400W RMS
• Frequency Response: 20Hz – 20kHz
• Signal-to-Noise Ratio: > 90dB
• Total Harmonic Distortion: < 0.05%

Microphones

• 2 Wireless UHF microphones
• Operating range up to 50 meters

Input Ports

• HDMI
• Optical
• Bluetooth
• RCA

Output Ports

• Speaker Output (L/R)
• XLR Balanced Output (Left / Right /
  Center / Sub)

5. Practical
Applications

The HQsing Pro
4000X is suitable for many different environments:

• Home karaoke rooms 20 – 30m²
• Modern living rooms needing a clean
  audio system
• Family parties or backyard BBQ
  gatherings
• Nail salons or spas requiring
  background music
• Home audio setups using both active
  and passive speakers

Thanks to its flexible
connectivity and powerful performance, the Pro 4000X provides a convenient all-in-one
solution for karaoke and music entertainment in a single device.