Jupiter 4, 6 and 8

Overview This module is a replica of the Roland Jupiter 6 (1983) voltage controlled filter which comprises two 2-pole State Variable filters in series. Forty years later the AM8060 contains the same two SVF's, with each of the 2-pole filters switchable into either Low Pass or High Pass mode providing...

Description This module is replica of the filters from the legendary Roland Jupiter 4 that was released in 1978. The AM8104 has two filters; a 4-pole low pass filter is a typical 1970's Roland OTA design, and a single pole OTA high pass filter. Eurorack Module: 14HP wide User Manual: AM8104 User Manual...

Description This module is replication of the Low Pass and High Pass Filters from the legendary Roland Jupiter 8 and 4. This is a 2 and 4 pole OTA design that Roland first used in the Jupiter 4 in 1980, replacing a discrete version of the filter which took up more PCB space. This is a warm sounding filter...

Description The AM8325 module is a recreation of the 2 and 4 pole filters in the Oberheim OB-Xa. The filter uses two AS3320 filter chips to produce an amazing sounding VCF. The 2-pole filter is a state variable, reminiscent of the Oberheim SEM, with both low pass and high pass outputs. The 4-pole filter...

Description The AM8400 module is a replica of the VCO in the Roland JP-4 polyphonic synthesizer that was introduced in 1978. The original VCO is a unique design that uses a 555 timer chip and a CMOS divider chip to create square waves which are then shaped into sawtooth and pulse. Most VCO s use a sawtooth...