Highlight Features
Audio Mixing Console KSM-20
The KSM-20 is a professional mixing console designed for large productions that require extensive input capacity and flexible audio routing. With 20 Mic/Line channels, four group outputs, integrated DSP effects, USB media playback, and detailed channel equalization, it provides centralized control for live performances, conference halls, houses of worship, event venues, studios, and permanent professional audio systems.
Product Description
- 20 Mic/Line input channels: Accommodates a large number of microphones, instruments, and line-level sources, with an independent signal-level LED indicator on each channel.
- Additional stereo connectivity: Two stereo input channels support keyboards, computers, media players, and other stereo programme sources.
- Three-band channel equalization: High, sweepable mid, and low-frequency controls allow each source to be tuned individually for improved clarity and tonal balance.
- 80 Hz low-cut filter: The built-in high-pass filter helps remove stage vibration, handling noise, and unwanted low-frequency rumble.
- Flexible auxiliary routing: Three AUX outputs and two AUX FX sends support monitor mixes, external effects processors, recording feeds, and independent audio zones.
- Four-group mixing architecture: Related channels can be assigned to four group buses for simplified control of vocals, instruments, presenters, or loudspeaker zones.
- Integrated DSP effects: The built-in processor provides 100 preset effects for adding reverb, delay, and other processing without external equipment.
- Seven-band stereo graphic EQ: A switchable master equalizer allows the overall system response to be optimized for different loudspeakers and room acoustics.
- Comprehensive signal monitoring: Full LED level meters with PFL/AFL monitoring provide real-time feedback for Group 1/2, Group 3/4, and Main L/R buses.
- USB media playback: Supports WAV, WMA, APE, FLAC, and MP3 formats for convenient music and programme playback.
- OTG connectivity: Enables compatible mobile devices and external equipment to connect through supported On-The-Go functions.
- Professional output configuration: Includes Main L/R, four group outputs, return inputs, room monitoring, and dedicated effects routing.
Product Specification
| Specification | KSM-20 |
|---|---|
| Channel and Routing Configuration | |
| Mic/Line Input Channels | 20 channels with independent signal-level LED indicators |
| Stereo Input Channels | 2 |
| Channel Equalizer | 3-band EQ on each input channel |
| Return Inputs | 2 |
| TR Inputs | 2 |
| AUX Outputs | 3 |
| AUX FX Send Outputs | 2 |
| Main Output | 1 × Main L/R |
| Group Outputs | 4 |
| Group Room Monitoring Output | 1 |
| Graphic Equalizer | 7-band stereo graphic equalizer with On/Off switch |
| Level Monitoring | LED metering with PFL/AFL monitoring for Group 1/2, Group 3/4, and Main L/R |
| DSP Effects | 100 preset effects |
| USB Media Formats | WAV / WMA / APE / FLAC / MP3 |
| OTG Support | Supported |
| Audio Performance | |
| Maximum Output Level | +12 dB |
| Signal-to-Noise Ratio | ≥83 dB, input 1 mV / output 1 V |
| Total Harmonic Distortion | ≤0.01% at 0 dB, 1 kHz |
| Frequency Response | 20 Hz–20 kHz (±0.5 dB) |
| Channel Crosstalk | <-75 dB at 1 kHz |
| Microphone Input Impedance | 600 Ω |
| Line Input Impedance | 10 kΩ |
| Stereo Input Impedance | 10 kΩ |
| Output Impedance | 100 Ω |
| Microphone Input Sensitivity | -60 dB |
| Line Input Sensitivity | -40 dB |
| Channel Gain Adjustment | -30 dB |
| Channel Equalizer | |
| High Frequency | 10 kHz |
| Sweepable Mid Frequency | 100 Hz–8 kHz |
| Mid Gain Control | Boost / Cut of the selected frequency band |
| Low Frequency | 60 Hz |
| Low-Cut Filter | 80 Hz high-pass filter |
| Power Supply | |
| Operating Voltage | 100–240 V AC, 50 Hz |
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