Product description

CS-5501 is a multi functional channel strip providing all necessary tools to process all kind of audio signals like vocals and instruments.

CS-5501 is the successor of the very popular CS-3301. It keeps the smooth sound of CS-3301 and provides much more flexibility in all tracking and mixing situations.


The double compressors control the dynamics of the signal, either stereo or Mid/Side.


The double (noise) gates suppress noise or any other signal below a certain level. The expanders increase the signal below threshold.


The double Deesers are a kind of dynamic EQ. They compress/expand the signal in a defined frequency range depending on the input/side-chain signal.


Saturation adds odd or even harmonics to the signal.


The two limiters keep the signal below a certain “ceiling” level.


Two noise stages add analog noise to the processor chain


The clipper module clips the signal based on varios clipping algorythms..


CS-5501 comes with double 7 band filters, shaping the sound accurately and naturally.

Metering & Monitoring

The dual meter monitor level of input/output signal and gain reduction of the compressors, deesser and limiter. It provides VU, RMS, Peak and EBU metering including calibration. On top CS-5501 offers flexible signal monitoring.


The oscilloscope displays the signal amplitude over the time. The buffer of the oscilloscope stores one second maximum.

Spectrum analyzer

The spectrum analyzer displays the frequency spectrum of the audio signals including EQ response curve.

Perceptual loudness matching, Oversampling and Bypss

The perceptual A/B loudness matching function helps you avoid the pitfall of 'louder is better'. CS-5501 offers top class oversampling and a smart bypass function.


The routing section orders freely the individual effect modules and lets quickly enable or even solo the effect modules.

Side chain support

The side chain section lets you deeply control internal or external side chain signals.

Serial and parallel processing

Each module can work either in serial or parallel mode. In parallel mode module 1 and 2 are processed in parallel and then mixed depending on the mix knob. The routing position of both modules is determined by position of module 1. 



  • 2x 7 band EQ
  • 2x noise gate/expander
  • 2x compressor, VCA/FET/OPTP design
  • 2x de-esser
  • 2x limiter
  • 2x saturation
  • 2x thermal noise for analogue sound emulation
  • 2x clip
  • full dual mono processing
  • serial and parallel processing
  • HQ over sampling
  • linkable input/output fader including phase inversion
  • module parameter link
  • copy/paste module settings (across all instances)
  • extended metering, input/output/gain reduction, Peak, RMS, EBU and VU
  • DAW synced oscilloscope
  • spectrum analyzer
  • peak level display
  • perceptual loudness matching (powered by ABLM Lite) and gain “freezing”
  • flexible ABLM Lite routing options
  • module routing
  • extensive side-chain support for many effect modules
  • many comfort functions like soloing and signal monitoring
  • mono mode on stereo channel
  • parameter randomizer
  • preset management
  • module preset management
  • undo/redo
  • selectable colour theme
  • large and easy to use GUI
  • free GUI scaling
  • 64-bit internal processing
  • very efficient CPU usage design
  • smart silence processing


  • Version: 2.9.1
  • Last update: 19.05.2024
  • PDF manual: Download
  • Changelog: View

Buy now

€ 59.00
﹡VAT may apply based on your location.

Important notes:

Before downloading and installing please check the system requirements!

Demo version versus Registered version:
In demo mode (without registering) the plugin mutes audio every 90 seconds for a short period. This could be circumvented by clicking on the "TBProAudio" logo within 90 seconds.

After installation product is in demo mode and needs to be activated. Please follow the steps described in the manual or here.

Before any purchase please test the product, read and accept the terms listed here.


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Customer feedback

Guys, IMO this is now the BEST *workhorse* channel strip on the market. It's absolutely phenomenal. I love it. Congrats to the developer for a superb plugin that will hopefully find much love and respect in the market. This developer deserves it.

-- Uarte on Gearslutz