Synthesis Technology E440 Discrete OTA VCF

The E440 is a high-quality low-pass filter with a vintage feel that reconfigures the chip section and other signal paths with discrete circuit elements such as transistors. It is the same SSM5 type as Prophet-1 Rev2-2040.

It is possible to take out the 2/3/4 POLE low-pass filter outputs at the same time, and since the outputs of each are out of phase, by mixing with another mixer,Other than low passIt is also possible to make a bandpass sound of.

The CV control has two inputs for the cutoff frequency (one with an attenuator, the other with an attenuator), one 2V / Oct input, and one CV for resonance. You can use the "DRIVE" knob to boost or boost the input signal.Line level signals can also be input directly.The sound of the filter will change greatly depending on this input level, so set it to your liking.

With the "JP1" jumper on the back, it is possible to turn on the bass boost without losing the bass with high resonance. First, let's start with "ON" setting.