The VCA chip used in the Apex has been discontinued by the manufacturer. The Apex is no longer in production. For more information on archived pedals, click on the Archive link at the top of this page. The Apex is a studio quality compressor with excellent control, large headroom, and clean accurate compression. It uses a THAT voltage controlled amplifier (VCA) for the highest fidelity in a small and functional format. The compression ratio ranges from subtle to total limiting. The signal threshold can be set for line level signals or all the way down to the low output instruments. Up to 20 dB of gain allows for making up any volume lost due to compression, or simply boosting your signal above unity. The Apex also has a variable high pass filter placed in the side chain. This feature is great for bass guitars when you don't want the low end to trigger the compression as much as the mids and highs, making the compression naturally follow your playing style. The high pass filter will not affect your audio signal, so don't worry about any loss of low end! The wide ranging compression meter gives you an accurate visual indication of how much compression is actually happening. The pedal requires a 9V DC power supply (not included). The DC supply should be a standard Boss style connector, center negative polarity. The current draw is approximately 60 mA. The Apex has a true bypass switch. Dimensions: 4.77" long x 2.6" wide