The EM-402 Sunless City Transistor Ladder Filter is a modular synthesizer filtering module that is sure to elevate any sound production to the next level. Featuring both a 4-pole / 24 dB/oct and a 3-pole 18dB/oct capability, this low-pass filter is based on transistors and controlled by two signal inputs and fixed and variable exponential CV inputs.
The Response control knob allows for adjusting the shape and degree of filter resonance, ranging from a pure low-pass filter to self-oscillation, resulting in a range of soundscapes that are unique and exceptional. The variable CV input provides further control over the filtering effect and opens up the possibility of exploring previously unseen realms of sound production.
Adjustable via the front panel, the EM-402 Sunless City Transistor Ladder Filter provides incredible sonic potential with its resonant frequency and its harmonics. The 4-pole mode helps in maintaining a flat frequency response (better than 3 dB) while the 3-pole range broadens the harmonic sound.
Beyond its technical abilities, the EM-402 Sunless City Transistor Ladder Filter is a beautifully designed module that is a visual delight. The 2.00mm anodized aluminum panel is sturdy and durable, and the small 12 HP (3U) format makes it easier to integrate into a compact modular setup.
In conclusion, The EM-402 Sunless City Transistor Ladder Filter is a must-have Eurorack module for any electronic music producer or sound engineer. It stands out from the crowd with its exceptional technical abilities, sound quality, design, and versatility, and it is sure to become an indispensable part of any modular synthesizer setup.
Example Usage
As a novice, the Sunless City Transistor Ladder Filter can be used to give sounds a more muffled, warmer and darker feeling. Connect your synthesizer's output to the module's input and adjust the filter cutoff knob to reduce the highest frequencies. Then, adjust the filter resonance knob to give the sound a resonant peak boost. By tweaking these two knobs, you can create different cutoff points and peak boosts, making your sounds more interesting and unique.
An intermediate-level usage example for the EM-402 Sunless City Transistor Ladder Filter involves creating a dynamic filtering effect with a sequencer. Patch the sequencer's output to the module's variable CV input, and input an audio signal to one of the filter's signal inputs. Adjust the filter's Response control knob to around 50% and sweep the sequencer, noticing how it affects the filter's cutoff frequency. Turning up the Response control knob will bring out a resonant peak, while increasing the sequencer's voltage will create a more aggressive filtering effect. Experiment with different sequencer patterns and tempos to get lost in the soundscapes created by this versatile filter module.
Further Thoughts
Add some spice to your live performance by incorporating the EM-402 Sunless City Transistor Ladder Filter in your eurorack modular synthesizer. Take your audience on a trip to a post-apocalyptic metropolis by manipulating the filter's resonance with the Response control knob. Use the switchable control for both the 4-pole / 24 dB/oct and the 3-pole 18dB/oct ranges to switch between a smoother or more aggressive filter sound. Spice up the sound further by incorporating your synthesized signals and CV inputs. The Sunless City filter is capable of taming your signals and producing a warm, thick, bassy sound that can give a robust endgame to your production and performances.