SampleTank FREE [IK Multimedia]

SampleTank FREE is a full-featured version of SampleTank 2.5 , with a 500 MB specially selected samples library. It is no longer limited - you can load multiple instances, it opens ALL SampleTank format sounds, has import functionality, and the ability to create your own user presets.

Best Features :

• Over 500 MB samples for over 200 sounds included.
• 3 synth engines.
• Powerful multi-effects section.
• 33 built-in DSP effects derived from audio processors like T-RackS and AmpliTube.
• Can be expanded with any Xpansion Tank 2 sounds.
• Imports WAV, AIFF, SDII, AKAI S-1000/3000, SAMPLECELL.
• Available both as a standalone application as well as a plug-in.
• VST, RTAS, and AU on Mac OS X/Windows.

You have to signup on their site to download this plugin. 

Kjaerhus Audio Classic Series - Free VST plugin

Included plugin are Classic Compressor, Classic Auto-Filter, Classic Flanger, Classic Delay, Classic Chorus, Classic Phaser, Classic EQ, Classic Master Limiter, etc.

Best Features  :

• Chorus
• Compressor
• Delay
• EQ
• Flanger
• Limiter (Great for mastering)
• Phaser
• Reverb
• Auto-Filter

Download the bundle for windows.

OR2v - Free Instrument VST plugin

.

A analog Duophonic Synthesizer inspired by the Oberheim, Developed by elektrostudio.

Best Features :

• 37 Keys no responds to Pressure/Velocity 
• Double Step Sequencer 
•  2 Voices (2 sem modules) 
•  2x Multitimbral (duophonic) 
• OSC Synthesis can do pwm sync 
• Wave Shapes pulse/saw/noise 
• 2 OSCs 
• 1 Filter morph lpf/hpf/bpf/notch 
• 1 LFOs sine 
• 2 Envelope Generators 2x ADS 

Only for windows

Rhythmus - Free VST drum emulator

Rhythmus is designed to emulate the sound of old drum machines. The plugin got some cool features and the plugin made by elektrostudio.

Best Features :

• Ten buttons, plus a section of the A / B switch and mixes 20 rhythms (waltz, samba, tango, rumba, etc ..).
• Set of 3 instruments Tamburin, guiro, quijada has the possibility of a separate mix.
• At the opening lid is located potentiometers with which you can tune the sound, set the pan and volume.

Only supports windows

Ocet - Free analog drum synth emulation VST plugin

Ocet is an EKO Computerythm analog drum synth emulation plugin developed by elektrostudio. 

Best Features : 

• 6 sound modules with independent load/save option, and random button.
• Internal mixer with levels and panoramas (L/R mix output).
• 16 step sequencer, with 16 patterns, load/save option, random function and keyboard midi ctrl.

PS: only available for windows.

Guitar Rig 5 Player - Free Guitar Amp Simulator VST Plugins

Based on Guitar Rig 5 Pro, most famous Guitar amp simulator VST plugin by Native Instruments, Guitar Rig 5 player have the same function but less features than the paid one.

Best Features

• 1 amp simulator (Jump Amp)
• 1 cabinet simulator (Matched cabinet)
• Expandable guitar effects rig
• Free amp, cabinet and effect
• Flexible multi-effects unit
• Native Instruments COMPLETE effects integration