Format: Eurorack
Width: 6HP
Depth: 29mm
Current: 65mA @ + 12V, 80mA @ -12V
Manual PDF (English)
Shakmat Modular Dual Dagger is a stereo filter with various features that allows you to control the low-pass and high-pass cutoff frequencies independently.
It is packed with features that make it easy to use as a filter, such as a resonance control that can be turned on/off for low-pass and high-pass, and a link switch that transforms the two cutoff controls into bass frequency and bandwidth controls.You can also create a stereo effect by shifting the left and right cutoff frequencies using CV.
The Dual Dagger features four different analog filters: two low-pass filters and two high-pass filters, all with a 24dB/octave slope. The LPF knob and CV input control the cutoff frequencies of the two low-pass filters, while the HPF knob and CV input control the cutoff frequencies of the two high-pass filters. The RES knob and CV input simultaneously control the resonance of the two low-pass filters when the LPF-RES switch to the left of the RES knob is enabled, and similarly control the resonance of the high-pass filter when the HPF-RES switch is enabled.
The LInk switch is turned on in the right position, and at this time the Dual Dagger becomes a variable width bandpass filter. The HPF cutoff controls the base frequency and the LPF cutoff controls the bandwidth. Resonance affects either the high-pass edge or the low-pass edge, depending on the switch position. In link mode, the relationship between each knob position and the bandpass filter response is as follows.
The Dual Dagger has a CV input that acts in opposite directions on the cutoff frequencies of each channel to achieve a stereo effect. When the PAN-CV input receives a positive voltage, the corresponding filter cutoff frequency of the left channel increases, and the frequency of channel 2 decreases. For example, applying a positive voltage to the PAN-LP input opens the left filter and closes the right filter. The opposite is true for negative voltages.
The resonance range can be set using the jumper on the back of the module. To prevent the filter from self-oscillating, set the jumper to the Lo position. Setting it to the Hi position allows you to control the resonance to a higher value, but also enables self-oscillation.
Here are some examples of creative uses with Dual Dagger other than general stereo processing and filtering.
By mixing the two outputs using a mono sound source, you can use the Dual Dagger as a twin-peak high-pass and low-pass filter. You can use the PAN input to shift the cutoff of the two channels.
Use only one channel and the highpass section as a sine wave VCO that tracks the V / Oct over several octaves (maximizing resonance causes the filter to self-oscillate).To create a more complex waveform, use channel 2 to FM the PAN-HP.This allows you to get more overtones and smooth the tone in the lowpass section.You can also mix both channels and use the PAN-HP as a detune parameter between the two sine wave VCOs.
It is well known that you can easily create a kick drum sound by FM with an envelope that attenuates sine waves. Dual Dagger allows you to create a variety of kick drums based on this. Mix the two outputs and detune them from the PAN input.Set a high resonance value for both sections and use the RES input instead of the VCA.
Can convert LR stereo to Mid Side stereoBy combining the Sum Dif module with a Dual Dagger filter, the cutoff frequency of the center signal can be offset from the side signal.You can use the pan section to get a unique panning effect.
