Features:

* 6 osc using either saw, square, exp, triangle wave, Smoothed saw, smoothed sqr, vocal and bell. You can control the coarse tuning of each of these osc's between -36 semi to +36 semi.
* Osc 1 to 3 & 4 to 6 can have different wave types.
* Different volume envelopes for Osc 1 to 3 and 4 to 6.
* Pulse width modulation for square waves.
* Unison - this controls the fine detuning between the osc's and how this detuning changes overtime.
* ADSR envelope.
* Modulated pan position.
* 8 / 16 polyphony toggle.
* Vibrato / Tremolo / Modulating Stereo widening.
* 10 type filter (12/24db low/high/bp/br + ring/comb) with att/rel envelope and modulating LFO.
* Effects - tempo-synced delay, 4 part chorus / flanger, reverb, multi-stage phaser & distortion.
* 80 presets and manual.

Isotope is a Performance Synthesizer / Groove sequencer / Multi-FX. It is no longer available.

Features:

* 4 Oscillator Unison mode.
* 2 Sub oscillators in split transposition mode.
* EVM Multiwave technology for a wide stereo spread.
* Waves: new(ish) waveform modules that can get almost 100 waves. (Still in development).
* Individual filter for each Osc with Phase variable contour frequency response.
* 4 Stage ADSR with Filter, contour and Osc pitch response.
* Built in Digital Delay line.
* Complex modulation with 2 LFOs and multiple destinations.
* 16 Patch memory programs.
* MIDI channel 1-16 or All.
* Selectable pitch bend range for realtime pitch wheel control.
* 8 Channel Groove Sequencer Filter,Waves and Oscillator Cross-Mod.
* Pitch bend and Modulation wheels.

A Virtual analog synthesizer featuring a range of tempo-based modulation options. The demo version is fully functional except the output peridically drops to silence. The full version of Feldspar furthermore includes FeldsparFX - a VST effect plugin based on Feldspar's architecture.

Foorius is a VSTi which allows you to explore and combine multiple
synthesis methods in a single patch.

it features...
- 16 note polyphonic synthesis engine
- FM, AM, VA, Wave-sequencing and Noise Oscillators
- Loads of different filters including circuit modeled Analog filters
- Freely routable signals
- built in effects
- 20 LFO's and 20 128-point Envelope generators
- Advanced midi handling
- Unique GUI that moves beyond the "looks just like hardware" paradigm
- 80 patches to get you started
- Standalone version as well as VSTi version

Foxglove is a waveshaping monosynth. The left and right channels are generated independently which allows for interesting stereo effects.

Very good for warm pads and synth strings.

Price: Free
Difficulty: medium CPU: medium  Listen   Source

A small nice plugin if you need some special effects and bleepy filter sounds.

This one is perfect for rich pads (6 oscillators,16 voice polyphonic). You can even load your own wave forms and envelopes (floating point). Especially good for choir like pads.

Inspired by a request for a vst that could be used for a Horror film Soundtrack. This synth is dedicated to its namesake. A guy whose generosity knows no bounds!! This Plug is most likely the work of the D*v*l himself...

GSinth is a monophonic VSTi with three sine oscillators. It also features an LFO for controlling the output level.

The first oscillator will play at the frequency of the MIDI note pressed. The remaining two oscillators can be set to play at a multiple of this frequency. You can also de-tune each oscillator.

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