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Note: This item may not be returnable or could require a restocking fee. Contact one of our Audio Consultants for more details. Due to the special nature of this item, we order each unit fresh from the factory, exclusively for you! Lead times may vary so please chat, call or email for up-to-date inventory status.



Rockruepel comp.two Vari-Mu Tube Compressor

Vari-mu tube compressor featuring an audiophile, fully symmetrical design with SOWTER input and output transformers, two high-end coupling capacitors, and input and output tubes

Product Description

The Rockruepel Comp.two Vari-Mu Tube Compressor is built on fully-balanced tube-circuitry. The main audio path consists of SOWTER input- and output transformers (SOWTER), two high-end coupling capacitors, input- and output-tubes (NOS 6N3 and 6CG7).

The "true" dual mono-design has separate power supplies for every channel. The potentiometers are encapsulated, quality products from ALPS. The VU-meters can be calibrated with a trim-pot hidden behind small holes in the rugged front plate. All switches use relays or directly determine control voltage. The two bypass-switches separate circuitry, so that only input directly connects with the output (true bypass). An IC is used to regulate the VU-Meter. Apart from that circuitry, the comp.two consist of discrete components and is hand wired in Germany.

In addition to the essential controls such as input, output, threshold, attack and release, the comp.two provides a side chain with an integrated four-stage filter. (Flat, 50, 74, 110 and 160 Hz). This filter takes out high-energy bass frequency that could otherwise affect the compressor’s behavior. The special "amp-only" -mode uses only the in and output stages and not the compression.

Some may say: "Tube-compressors sound good but they are too slow. I prefer VCA-compressors because of their speed." The comp.two accomplishes both, with an attack up to 600 µs it is extremely fast but it also has a soft and really musical knee compression for your sound processing.


  • Audiophile, fully symmetrical design
  • Aluminum chassis with 6 millimeter front plate
  • SOWTER-transformer
  • ALPS-pots
  • VU-Meter (manual calibration)
  • Output tube: 6CG7
  • Input tube: NOS 613P
  • WIMA-dual capacitor
  • Amp-Only-Mode
  • Real bypass
  • Dual Mono with separate power supply
  • Sidechain-Control (54, 74, 110, 160 Hz)

Product Specifications

Condition New
Tube or Solid State Tube
Channels Dual-Channel
Chassis 19-inch Rack-mount
Rack Spaces 3U
Input Connectors Analog XLR
Output Connectors Analog XLR
Compression Type Variable Mu

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I would like to thank VK for the wonderful sales assistance, service and prices. This was my first purchase with you and it won't be my last. I only wish I'd discovered you years ago!
Matthew R.
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Ryan F.
In almost 20 years in Pro audio buying, never did I receive a unit so well packed and exactly as described. Works flawlessly. The whole process has been so smooth. I will never hesitate to do business with you guys in the future and will recommend you to everyone I know.
Martin C.
This was my first experience buying something from Vintage King (although I surf the "used" categories on the website frequently!), and, despite being on the other side of the world, I had absolutely no trouble and everything went very smoothly.
Phil T.
The speed of delivery exceeded my expectations! I was VERY pleased that my shipment arrived in time for a scheduled vocal tracking session. The packing insured that my order arrived safely. And the sales staff responded quickly to questions regarding the product.
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