Konzert KE-231.2 is a professional 2×31-band graphic equalizer designed for precise audio
shaping in live sound and studio setups. Housed in a 2RU rackmount chassis, it features dual
31-band EQ channels with selectable ±6 dB or ±12 dB boost/cut range, input gain controls, and
bypass switches. It supports both balanced (XLR, TRS) and unbalanced (RCA) connections, making it
flexible for various audio systems. A key feature is its dedicated subwoofer output, allowing for
direct low-frequency routing—ideal for setups requiring enhanced bass management. This unit
delivers clean, detailed sound with a wide frequency response and low distortion, making it a
solid choice for DJs, musicians, and sound engineers.
Features
Dual 31-Band Graphic Equalizer
31 bands per channel (1/3-octave spacing) for precise tone control from 20 Hz to 20 kHz.
Constant-Q Circuitry
Maintains consistent bandwidth and center frequency accuracy across all bands.
Selectable Boost/Cut Range
Switchable between ±6 dB and ±12 dB for flexible equalization control.
High-Pass and Low-Pass Shelving Filter
Built-in sweepable filters to clean up low-end rumble and high-frequency noise.
Balanced and Unbalanced I/O
Inputs and outputs via XLR, 1/4″ TRS, and sometimes RCA—compatible with a wide range of audio gear.
RF Interference Protection & Ground Lift
Helps eliminate unwanted hum and radio interference in complex setups.
Peak Level Indicator LEDs
Visual signal level monitoring to avoid distortion and overloading.
Bypass Switch
Allows for instant comparison between processed and unprocessed signals.
Input Gain Control
Adjusts the signal strength going into the EQ for optimal performance.
Subwoofer Output (on some models like KE‑231.2)
Dedicated output for sending low frequencies directly to a subwoofer, often with built-in low-pass filtering.
Specification
Type: Dual 31-band graphic equalizer (stereo)
Rack Size: 2U (standard 19" rack)
Frequency Range: 20 Hz – 20 kHz
EQ Range: ±6 dB or ±12 dB (selectable)
Inputs: XLR, 1/4" TRS, RCA (balanced and unbalanced)
Outputs: XLR, 1/4" TRS, RCA (with Subwoofer Out)
Subwoofer Output: Yes (with built-in low-pass filter)
Filters: High-pass and low-pass (adjustable)
Signal-to-Noise Ratio: 95 dB or higher
Distortion (THD): Less than 0.05%
Indicators: Peak LED for signal overload
Power: 95–250V AC, 50/60 Hz (auto-switching)
What's in the box?
Power Cord
Warranty Impormation Card
User Manual
