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TK Audio BC1LTD Bus Compressor  From TK Audio

The classic stereo compressor with infamous "glue" gets some exciting upgrades and features for the 10th-anniversary release of a limited edition 100 units. 

TK Audio

Manufacturer's Description from TK Audio

To celebrate TK Audio’s 10 year anniversary we are releasing the BC1Ltd in a limited edition of 100
units. We added some user-requested features like the THD function and HPF frequency options from
the BC501. But we didn’t stop there, we also added the new Grab setting. This adds a more obvious
compression character in addition to the usual transparent mode that BC1 is famous for, perfect for
the drum-bus.

The panel of the BC1Ltd is a sleek brushed anodized panel which gives an exclusive feeling and the
units are individually numbered on the front-panel.
Available from: Shipping starts April 23.

Key Features:
• Three HPF frequencies, 80Hz, 150Hz, and 220Hz
• Selectable Grab function selects a harder threshold knee
• Selectable THD function for more even harmonics
• Additional attack times
TK Audio

About Manufacturer

TK Audio is based in Halmstad, a small town in the southwest of Sweden. It started out in 2008 as an additional brand to Vintagedesign as we wanted to develop products with a bit more modern style. Thomas Kristiansson (or TK as his friends call him) is the mastermind behind both Vintagedesign and TK Audio and he has been working with electronics, cords and sounds in different kinds of professions his entire career.
Our philosophy is to produce creative audio solutions and assemble them in Sweden.
We buy the chassis from a local manufacturer and the main part of the panels is also produced nearby. Up until just recently we have assembled and soldered the circuit boards by ourselves but as the demand for our products has increased we can´t keep up so now we also use another company to help us out. They are situated just a 2 hour drive from Halmstad so we can still proudly say that our products are hand made in Sweden. We take responsibility for keeping our production as environmental friendly as possible and by having full control over the production and of course making all the final assembling by ourselves we can make sure that the quality always is top notch!


  • Noise flooor: below 104dBm
  • Frequency response:  20Hz to 20kHz less than -0,025dB
  • Frequency response: 20Hz - 80kHz less than -0,3dB 
  • Blend control fully CW (comp)
  • THD+N @ 0dBu: less than 0,0045%
  • THD @ 0dBu: less than 0,001%
  • THD+N @ +26dBu: less than 0,02%
  • THD @ +26dBu: less than 0,02%
  • Blend control fully CCW (straight)
  • THD+N @ 0dBu: less than 0,00045%
  • THD @ 0dBu:
  • THD+N @ +26dBu: less than 0,0003%
  • THD @ +26dBu:
  • Input impedance: 40kohm
  • Output impedance: 50ohm
  • Max input level: +26dBu
  • Max output: +27dBu @ 600ohms load