ACME Audio Opticom XLA-500

Buzz Audio Essence is a 500 Series version of the flagship SOC-1.1 opto compressor with a similar compression characteristic. The signal path uses Lundahl input and output transformers and our True Class A discrete amplifiers. This compressor is the only compressor on the market to offer a side chain insert point in the 500 Series format. In addition, on board side chain equalisation allows you to alter the sensitivity of the compressor at high and low frequencies - another unique feature of the Essence.

EMPEROR 500 is an analog dynamics processor, which depending on the settings can work as a compressor, limiter or harmonics distortion generator. It was designed for creating the original, vivid, analog sound for instruments and voices.

Q2 Audio F765 500 Series Compressor / limiter
Manufactured by Q2 Audio in close collaboration with Audio & Design, the F765 is a remake of the classic F760-N module and has now been adapted to the 500 series modular rack system. It is authentic in every detail and reproduces the exact sonic qualities of the original product.

Using the original discrete analogue circuit design employing a feedback FET technique and maintaining the use of the same components that give this product such a distinctive sound, the new F765 compressor/limiter will add dynamic punch to your sound as well as controlling peak excursions.

The Standard Audio Level-Or MK2 is an agressive JFET limiter and harmonic distortion generator inspired by the Shure Level-Loc PA Limiter from the 60's and 70's. The MK2 version takes the original concept to a new level with improved performance and added features making it an extremely versatile studio tool.

WesAudio DIONE STARLIGHT Black Face Limited Version
Legendary sound of Stereo Bus compressor has been true companion on countless recordings since 40 years. Often recognized as “mixbus glue”, this particular compression sound have become industry standard. We present _DIONE – fully analog, legendary VCA compressor with digital recall.

WesAudio RHEA tube Stereo Vari-Mu tube Compressor with digital recall

Main features
• 100% analog device with +24dBu of headroom
• True stereo tube “vari-mu” style compressor
• High voltage tube operation
• Input CARNHILL transformers
• Input and output level control for maximum flexibility
• Mix knob for parallel compression
• THD – harmonic distortion with two modes (Medium & High)
• SIDE CHAIN FILTERS – 3 high pass filters at 60,90 and 150 Hz
• 500 series and ng500 (e.g. _TITAN) series compatible
• Total Recall and plugin control compatible with most DAWs
• Analog automation in DAW

CHANDLER LIMITED TG Opto Compressor - 500 Series Optical Compressor
The Chandler Limited TG Opto compressor is a handmade, fully discrete, mono, dual space module, designed for the 500 Series format.

The TG Opto for 500 Series is a relative of the TG1 Opto, found in Chandler Limited’s TG Microphone Cassette, the TG1 Limiter and Zener Limiter, and traces its lineage to the historic EMI TG12413 limiters found on the TG12345 mixing and mastering consoles of the late ‘60s and early ‘70s.

The TG Opto compressor control-set includes: selectable sharp and rounded knees, continuous input, output (makeup gain), attack, release, and true bypass.

WesAudio MIMAS 1176 Style Analog Compressor with Digital Recall
NEW IMPLEMENTATION OF A LEGEND
Since year 1968 this style of compression dominated hundreds of recordings and to this day it is most commonly used signal processor in the industry. Lightning-fast attack and release times became main companions of audio engineers. WesAudio proudly presents _MIMAS – ng500 series implementation of legendary FET compressor. This time along with classic analog sound You will receive most demanded feature in audio industry – DIGITAL RECALL.

Smart Research C1LA is a stereo compressor/limiter, released to commemorate the 25th anniversary of the original C1 Stereo/Dual Mono unit, and the 50th anniversary of North American distributor, Sunset Sound. It is a versatile unit, housed in a two-module wide 500-series format, with three main modes of operation offering a range of possibilities. It can be used for all stereo or single channel signal applications: as a main mix bus compressor; for sub-mixes; or for tracking either mono or stereo sources.

For 25 years Smart Research compressors have been used across many mixes: with artists as diverse as the Rolling Stones to the Three Tenors. The C1LA shares this history by including the same electronics and settings as the original C1, but with several new features.

Chandler Limited Little Devil Compressor - 500 Series Compressor Module
The Chandler Little Devil Compressor uses all discrete circuits that combine Chandler's best designs with the hottest designs from the past, transformer balanced everything, and the American hand made quality you expect from Chandler, the LITTLE DEVILS will take the lunchbox UP to the next level...

The Shadow Hills Dual Vandergraph is a direct descendant of the Shadow Hills Mastering Compressor and maintains its reputation of unquestionable quality and exceptional performance - in a 500 Series format. It’s inner workings are developed from the discrete gain cells of the Mastering Compressor which are combined with the Optograph’s extremely flexible Sidechain Filter matrix. This combination provides great possibilities for new recording techniques and the dynamic control.

Q2 Audio F765 stereo Pair is the compression and limiting sections of the famous "Compex Limiter"™ built into a single 500 Series slot. The audio path contains the same blue Phillips type capacitors and BC series transistors as the original Compex.

Formatted after the vertical "N-Unit" with slight layout changes for enhanced usability, the F765 lives up to the reputation it's big brother, the F760X-RS, has made over decades of being a "secret weapon" on countless records.

Obsidian 500 Dual Mono Expansion from Dramastic Audio adds Dual Mono Functionality to the Obsidian 500.

Adds the followings to the Obiodian 500:
• Duplicate Set of Precison Stepped Controls for Dual Mono Fonctionnality
• Independent Metering of Left & Right channels
• External Sidechain Input for Left & Right Channels
• Expansion Port for linking to the Obsidian 500

McAudioLab OC1 - The Easy to Use Optical Compressor!
OC1 packs great compression into a simple 500 Series rack compatible module.

This mono compressor delivers many of the benefits typically associated with opto-cell providing you with satisfying warm and subtle smoothness.

The Standard Audio Stretch is a 500 Series, multi-band Compressor / Dynamics Processor unit based on noise reduction units from the 1970s and 1980s. Stretch emulates the sound of these classic units in their respective “encode” modes. However, the Stretch adds new features to employ this old trick in multitude of new ways.  

Dramastic Audio Obsidian 500 is derived from the 19" rack mount series Obisdian Stereo Compressor, but adds more flexibility with selectable high-pass filters. This 500 series version is also provided with a soft additional ratio of 1.5: 1. This module can also be completed with the Obisdian Dual Mono Expansion  offering all dual mono features like independent L/R channels metering, a side-chain input crucial for some applications and a a duplication of the front panel controls.

Purple Audio ACTION is a FET compressor reminiscent of the MC77, designed to work in standard 500 racks.

The Action by Purple Audio features a constant impedance 600 ohm input attenuator feeding the input transformer, just like the MC77 units. This makes the input more resistant to overload by hot signals. After the input transformer, the signal is attenuated by the same gain reduction FET as in the MC77. The attenuated signal is buffered by a class A KDJ3 Op-Amp, which feeds the output fader. Lastly, the class AB KDJ4 output Op-Amp drives the custom hexafilar nickel and steel output transformer. The total gain (with no attenuation) is 45dB, just like the MC77.

WesAudio DIONE Analog BUS Compressor with Digital Recall
Legendary sound of Stereo Bus compressor has been true companion on countless recordings since 40 years. Often recognized as “mixbus glue”, this particular compression sound have become industry standard. We present _DIONE – fully analog, legendary VCA compressor with digital recall.

GC Audio Density compressor is a complete VCA Compressor.
The de-symmetrization stage consists of a Lundhal LL 1585 transformer which remains to this day the only way to perform common mode rejection without adding distortion. The follower OPA are ultra low noise AD797s recommended by That Corporation for optimal operation of the VCA.