K7 6 Channel Professional Vocal Processor
- High-quality AD/DA Converters and dual high-speed DSP architecture: This ensures superior audio quality and processing speed, resulting in clear and precise sound.
- HIFI hardware design: The processor is designed with high-fidelity components that deliver a natural and captivating timbre, enhancing the overall audio experience.
- Low noise MIC pre-amp: By reducing background noise, this feature enhances sound clarity and sweetness, allowing vocals to come through with greater distinction.
- Configurable microphone curves: With two sets of curves, the processor adapts to various microphone applications, optimizing the sound output for different vocal styles and preferences.
- Adjustable mixing ratio: The ability to customize the levels of Echo, Reverb, Music, and Direct outputs provides flexibility in achieving the desired sound balance for performances or recordings.
- Flexible parameter adjustment: Channels can be adjusted independently or linked together, offering convenience and versatility in fine-tuning the audio settings based on specific requirements.
- 5th generation Reverb algorithm: This algorithm provides professional early reflections and modulation, creating an enhanced sound field with warmer tones, adding depth and richness to the vocals.
The K7 six-channel professional karaoke machine is a professional device specifically designed for top-tier audio performance, integrating multiple innovative technologies to create an exceptional singing experience.
Core Technical Features:
I. Top-Grade Audio Processing Engine
- High-Precision AD/DA Conversion
Equipped with a 24-bit/192kHz professional-grade AD/DA converter
Dual-DSP parallel processing architecture, achieving real-time signal processing at 48kHz
Signal processing delay <3ms (full link) - Hi-Fi Audio Pathway
Designed with discrete component audio circuitry
Special frequency compensation network optimization
THD+N <0.005% (1kHz)
II. Intelligent Vocal Processing System
- Professional-Grade MIC Preamplifier
Supports 48V phantom power
Dynamic range of 115dB(A-weighted)
Adaptive noise gate - Customizable Microphone EQ
Pre-set two parameter curves:- Curve A (Wideband Mode): 80Hz-18kHz
- Curve B (Vocal Optimized): 100Hz-15kHz
Supports user-defined storage of 9 parameter sets
III. Professional Mixing Control
- Dynamic Mixing System
6-channel independent processing (4MIC+2AUX)
4-bus output control (ECHO/REVERB/Music/Direct)
Mix ratio adjustable from 0-120% - Multi-Mode Echo System
Fifth-generation spatial reverb algorithm
Dual-mode modulation engine (AM/FM)
15-band EQ adjustment (±15dB)
IV. Network Expansion Capabilities
- Interface Configuration
6×XLR balanced MIC inputs (with phantom power)
4×TRS balanced line input/outputs
Optical/coaxial digital audio input
USB music playback support (MP3/WAV) - Control System
10-inch capacitive touchscreen
RS-485 network protocol support
Local/remote parameter synchronization
One-touch scene storage/call (supports 50 groups)
V. Professional Application Features
- Multi-Scene Working Modes
Adaptive mode (automatic recognition of singing/music)
Theater mode (enhanced surround effect)
Live streaming mode (optimized network transmission) - Audio Analysis Tools
Built-in RTA real-time spectrum analysis
Phase analyzer
Loudness meter
| Music | ||
| SNR | Bypass， Pitch-Shifter Off | ≥107dB(Analog), ≥114dB(S/PDIF) |
| THD+N | Output+4dBu, 1kHz | 0.002%(Analog), ≤0.001%(S/PDIF) |
| Frequency Response | L/R/C/SL/SR | 20Hz-20kHz ± 0.5dB |
| S.W | 20Hz-2000Hz ± 0.5dB | |
| Max Input Level | Analog Inputs：BGM/IN1/IN2 | 4Vrms |
| S/PDIF Inputs：Optical/Coaxial | 0dBFS = 2Vrms | |
| Max Output Level | ±12 Pitches， 100 Cent(HalfTone) /Step | |
| Gain | Analog Input：BGM/IN 1/IN2 | -30dB~+18dB |
| S/PDIFInputs：Optical/Coaxial | -30dB~+12dB(Trim：-12dB~0dB) | |
| Pitch-Shifter | ±12 Pitches，100 Cent(HalfTone) /Step | |
| MIC | ||
| SNR | Bypass， Effect Off | ≥99dB |
| THD+N | Output +4dBu， 1kHz | ≤0.006% |
| Frequency Response | L/R/C/SL/SR | 20Hz-20kHz ±0.5dB |
| S.W | 20Hz-2000Hz ±0.5dB | |
| Sensitivity/Impedance | 3 Front Inputs | 31mVrms/3.3kΩ |
| 2 Rear Inputs | 44mVrms/10kΩ | |
| Gain | 3 Front Inputs | 30dB~42dB |
| 2 Rear Inputs | 39dB | |
| Video | ||
| Inputs/Outputs | 3 IN, 1OUT. Follow the music input selection. | |
| Sensitivity/Impedance | 1 Vpp/ 75Ω | |
| Parameter Equalizer&Filter | ||
| PEQ/Lo-Shelf/Hi-Shelf | Bands | Music 15, Mike 15×2, Main Output 10, Center 10, Subwoofer 7, Surround 7, Echo 10, Reverb 10 |
| Gain | -15dB~+12dB | |
| Bandwidth(Oct) | 0.011~3.595 | |
| Frequency | 19.7Hz~20.2kHz，19.7Hz~2000Hz (S.W) | |
| Filter | HPF | 19.7Hz~202Hz, 19.7Hz~1kHz(S.W) |
| LPF | 12.1kHz~20.2kHz， 35.1Hz~2kHz(S.W) | |
| Roll-off | 12dB/24dB/36dB/48dB | |
| Type | Bessel/Butterworth/Linkwitz-Riley | |
| Others | ||
| RemoteControl | Infrared Receiver， Line remote(TypeS Connector) | |
| Online Control | RS232C(DB 9 Female) ， USB(Type B， Driver Free) | |
| Mains Input | AC 220V 50-60Hz | |
| Power Consumption | ≤21.5W | |
| Fuse Size | T1AL/250VAC | |
| Net Weight | 3.5kg | |
| Dimension(W x H x D) | 482 x 158 x 45(mm) | |
coming soon