COMING SOON!
Overview These modules are under development and will be released soon.
COMING SOON!
AM303 VC Low Pass FilterIntroducing the AM303 VC Low Pass Filter, a modern twist on the classic PPG 303 from 1976! This 8 HP module is designed for your Eurorack system, featuring a traditional Mini Moog style ladder filter that delivers a rich 24dB low pass sound. With 2% PPS capacitors in the ladder and buffers, the AM303 offers superb audio clarity and resonance, even at low frequencies. Perfect for self-oscillation, it pairs beautifully with the 904A sound. The sleek design includes etched silver lettering and five 3.5 mm jack sockets for easy connections: one audio input, one audio output, and three frequency control CV inputs. Get ready to elevate your sound with the AM303, currently in development and set to release this autumn. Cheque out the user manual (PDF), ModularGrid, and our YouTube channel for more info!
COMING SOON!
AM317 Dual Voltage Controlled FiltersThis is recreation of the PPG 317 dual voltage controlled filter fom 1976, used by Klaus Schulze, Chris Franke and many others. The design has been reverse enginereed from photographs of the original PCB's. It is a pair of traditional Mini Moog style ladder filters which can be used as seperate low and high pass filters or combined to create band pass and band reject modes. The module is designed to complement the Behringer System 55 Modular System, with a 14HP panel width and the absence of audio signal attenuators. The AM317 delivers a range of creative sounds from the two Mini-Moog style filters with resonance in the low pass filter and a clarity of audio when in self oscillation. Euro Rack Module: 14HP wide User Manual: Download PDF There are ten 3.5 mm jack sockets on the base of the front panel: 2x audio input 2x audio output 6x frequency control CV inputs PRODUCT STATUS: IN DEVELOPMENT
COMING SOON!
AM8005 SH05 FiltersThis module is a unique and very powerful diode ladder VCF, which has three different modes selected by a front panel slide switch: Low Pass Band Pass High Pass All three modes have voltaged controlled frequency modulation. Frequency Cutoff and Resonance can be adjusted and there are 2x audio inputs and 2x CV inputs for frequency modulation. The module has a mixture of slide and rotary potentiometers. The AM8005 is a replica of the voltage controlled filter in the Roland SH-5 analog synthesizer. EuroRack Module: 16HP wide User Manual: Download PDF Detailed Description This 16 HP wide module has at its core a 4-pole low pass diode filter, along with a 1-pole High Pass Filter which can be used in conjunction with the diode LPF to create Band Pass and High Pass filter responses. In LP mode the signal is simply sent straight to the Low Pass VCF although the signal level is reduced down at higher Resonance levels, by use of a dual Resonance potentiometer. The filter will self oscillate a...
COMING SOON!
AM8220 LFODescription This module is an accurate and expanded replica of the LFO in the Roland SH-101 analog mono synth which was released in 1982. EuroRack Module: 10HP wide User Manual: Download PDF The LFO is based on dual Op Amp that generates both triangle and square waves from 0.35Hz to 30Hz. The frequency is controlled by a LED slide potentgiometer (the LED flashes at the LFO rate). A range switch has been added to enable the LFO to run at lower and higher frequencies. The triangle wave is converted to a sine wave and is available as a seperate audio output that is switched on/off by the front panel MOD switch and/or an external gate input. The volume of this sine wave is adjusted iwth the S-MOD slider, the LED illuminates when the sine wave is active. The LFO can be locked into an external clock so that the waveforms start at the end of the gate signal. A front panel switch controls whether the LFO is free running or uses the external lock. The original LFO uses a digitally generated...
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AM8400 JP-4 VCODescription 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 or triangle core. This unique design makes for some very different sawtooth wave shapes and tonality. The Jupiter 4 is famous for its powerful sounds and efficient controls. The constraints of microprocessors in 1978 mean there were only 16 sliders that could be memorised, which limited the functionality of the VCO to a 4 octave range and 3 waveforms. The JP-4 has only one VCO per voice, so Roland added a sub-oscillator which generates a square wave one octave below the VCO frequency. The sub can be switched ON or OFF, and the waveform switch has an OFF setting so that just the sub oscillator can be heard. Euro Rack Module: 14HP wide User Manual: Download PDF The AMSynths circuit...
COMING SOON!
DIODE-01 Mono SynthThe DIODE-01 Mono Synth is a fantastic homage to the iconic Roland System 101, blending its classic charm with the added features of the 102. This single VCO synthesizer boasts a rich diode ladder filter, making it a must-have for any synth enthusiast. Built on two sturdy PCBs, the DIODE-01 fits perfectly into a 60HP Eurorack space or can be easily integrated into a Moog Mother 32 case.
