Details: • Analog Dual/Stereo-Filter • 4 Filter Modes: LP, HP, Phaser and Overdrive • Independent Resonance Control • Mix two Mono Signals • Mono to Stereo Converter • CV Control over Cutoff Frequency • CV Attenuator • Expander Module • Wrong Polarity Protection • 3U Eurorack module, 8 HP wide • Power consumption: 56 mA at +12 V and 45 mA at -12 V The module consists of two boards: • Front PCB Panel • Main PCB
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KARL8HP Multi-Mode Dual/Stereo-Filter with individual Resonance Control Karl is an analog multi-mode filter that is loosely based on the KORG MS-10 and MS-20 filters, but has been improved to handle two mono or one stereo audio source. The Resonance can still be varied independently per channel, which is very interesting when using two different audio sources at once. If you want to merge the two audio sources there is a Mix Out next to the two independent outputs per channel. Karl has four modes: • Low Pass Mode: Classic Analog Low Pass Filter • High Pass Mode: Classic Analog High Pass Filter • Phaser Mode: A small band of frequencies is filtered next to the original signal being passed through • Overdrive Mode: If Resonance is increased the filter will quickly jump to overdrive, which creates some nice Harmonics The Modes may be changed via jumpers on the back of the module. In any mode the Cutoff Frequency may be changed via CV. The CV signal can be attenuated with the CV potentiometer.There is also an expander module available. The „Karl Mode Selector“ gives you front panel control over the modes and an alternative audio input for the right channel that can be activated via switch.