Product Description

1. VOSS AUDIO HOME THEATER MAIN SPEAKER/SURROUND SPEAKER HDK220
Main / Surround Speaker
Model: HDK220
Cabinet Material: Aluminum Alloy
Frequency Response: 200Hz–20kHz
Driver Unit: Dual 2.25" Neodymium Drivers
Sound Pressure Level (SPL): 95dB
Nominal Impedance: 8Ω
Rated Power: 40W
Weight: 0.6kg
Dimensions (W×D×H): 60×85×125mm

2.VOSS AUDIO HOME THEATER CENTER  SPEAKER HDK220
Center Speaker
Model: HDK220
Cabinet Material: Aluminum Alloy
Frequency Response: 200Hz–20kHz
Driver Unit: Dual 2.25" Neodymium Drivers
Sound Pressure Level (SPL): 95dB
Nominal Impedance: 8Ω
Rated Power: 40W
Weight: 0.6kg
Dimensions (W×D×H): 60×85×125mm

3. 10 INCH WOOFER KBS10B
Subwoofer
Technical Specifications:
System Type: 10" Passive Subwoofer
Frequency Response: 30Hz–200Hz
Sensitivity: 88dB
Nominal Impedance: 4Ω
Max Input Power: 400W
Max SPL: 98dB (Peak 105dB)
Rated Power: 100W
Net Weight: 10kg
Dimensions (W×L×H): 330×355×340mm

4.VOSS AUDIO 7.1CH K9 AV RECEIVER WITH INTEGRATED DECODING 

Product Features
1. This product integrates audio/video decoding and microphone effect processing. It includes:

2 analog stereo inputs

1 OPT (optical digital input)

1 COAX (coaxial digital input)

2 microphone inputs

USB playback

Bluetooth function

HDMI with 3 inputs and 1 output

The HDMI OUT supports ARC (Audio Return Channel), and HDMI audio transmission supports both I2S and SPDIF.

2. Audio output modes include:
Pass-Through, 2.1, 5.1, 7.1

3. Supports 7.1 channel audio decoding.

4. HDMI Version & Supported Formats:

HDMI version 2.0

Supports HDCP 1.4 and HDCP 2.2

Supports video resolution up to 4K×2K @ 50/60Hz

Supports audio sampling rates: 32K, 44.1K, 48K, 88.2K, 96K, 192K

5. Audio Characteristics:
This product uses a 48kHz sampling rate with 32-bit high-performance A/D and D/A conversion.
Music signal processing includes: input selection, noise gate, high/low-pass filters, and dynamic EQ limiter.
Microphone processing includes: noise gate, high/low-pass filters, PEQ, feedback suppressor, limiter, echo, and reverb (REV).
The effect section includes dedicated 12-band PEQ and high/low-pass filters for both echo and reverb.

6. Microphone effect processing integrates:

Effects processor

Feedback suppressor

Equalizer

Crossover

Limiter

Dynamic EQ

It performs digital signal processing for music and microphone inputs, offering flexible configuration and high-quality output—ideal for karaoke applications, especially in professional KTV environments. All features can be adjusted using a PC installed with control software, connected via USB or RS232 port.

Technical Specifications
Main Output: 2 × 50W @ 8Ω

Center Output: 1 × 50W @ 8Ω

Side Surround Output: 2 × 50W @ 8Ω

Rear Surround Output: 2 × 50W @ 8Ω

Subwoofer Output: 1 × 120W @ 4Ω

Signal-to-Noise Ratio (SNR): MIC ≥ 93dB, MUSIC ≥ 90dB

Total Harmonic Distortion + Noise (THD+N): MIC < 0.03%, MUSIC < 0.03%

Input Interfaces:

2 × Microphone inputs

3 × HDMI inputs

2 × AV (AUX, DVD)

Optical

Coaxial

USB

Bluetooth

Output Interfaces:

1 × Recording output

1 × Active subwoofer output

Equalization Adjustment:
(Customizable EQ types)

Microphone Input: 12-band independent EQ

Music Input: 7-band EQ

Reverb: 3-band EQ

Output: 7-band EQ × 8 channels

Power Consumption:

No Load: 5W

Standby: 2W

Feedback Suppression (FBC):
Built-in software-based frequency shifting feedback suppression

Dimensions (W×D×H): 435 × 320 × 80mm
Weight: 4.5kg