The AF-4 is a virtual-analog lowpass filter module, based on the well-known transistor ladder design. In order to obtain highest quality, this lowpass filter employs a topology-preserving, zero-delay feedback network with 4x oversampling, yielding results comparable to industrial circuit simulator.

You need R2R Reason release and TEAM R2R Reason Rack Extension Cache Builder.

The RM-1 is a virtual-analog ring modulator with a unique soft-saturation characteristic. Both an internal oscillator as well as mono and stereo side chains are available as a modulation source. Full CV control for all knobs is available on the backside of this rack extension.

A ring modulator multiplies a sound with a modulation signal, typically a sine wave. The result of this ranges from tremolo-type effects at low modulation frequencies to bizarre-metallic sounds at high modulation frequencies.

The DC-2 dual chorus offers a warm, sweeping stereo chorus effect based on a two-stage design with well-matched delay times.

Sound parameters include the delay time, modulation rate, depth and a bipolar feedback control. The delay time, modulation rate and feedback parameters can be controlled via CV Inputs on the backside.

The Synapse AP-12 is a very musical sounding 6/12 stage phaser effect emulating vintage analog hardware.

The Synapse AP-12 emulates vintage analog phasers, which are composed of a series of phase shifting stages with a feedback path wrapped around them. The phase shifting stages (switchable between 6 and 12 stages) are modulated by a LFO, which can be synchronized to the current song tempo. In contrast to most hardware phasers, the AP-12 employs a stereo signal path, allowing the LFO to use different phases on the left and right channel, and thus creating a nice stereo effect. Furthermore, the feedback can be set to both positive and negative amounts, each resulting a in different timbre.