OUR PART # RC500
The RC 500 is a single-channel solid-state channel strip preamp with compressor and EQ.
The RC 500 combines the custom-designed FET compressor and semi-parametric EQ circuits that Robert Creel developed for PreSonus’ highly lauded ADL 700 tube channel strip with his new ultra-low-distortion, high-gain, solid-state Class A preamplifier design, which delivers consistent, repeatable, transparent, detailed audio. A balanced analog insert sends the source signal out of the RC 500 before the compressor, EQ, and Master Gain stages and returns the signal directly to the compressor stage, allowing you to add external processors.
The Compressor: Fun with FETs
The RC 500’s FET (Field-Effect Transistor) compressor includes fully variable attack, release, and threshold controls, as well as bypass controls. The compression ratio is fixed at 3:1. This combination provides lots of flexibility without giving too much to cause problems.
User tip: The input-gain stage can be driven harder with a lower threshold to emulate higher compression ratios. You can make the RC 500 compressor pump if you want to.
FET-based compressors such as the one in the RC 500 use transistors to emulate a triode tube’s operation and sound. This type of compressor generally provides a faster attack time and better repeatability than the optical compressors that are more commonly found in channel strips in this price class.
A Smooth, Refined, Musical EQ
The RC 500’s 3-band semi-parametric EQ was also designed by Robert Creel to match the preamp and compressor. It combines isolated filters and optimized, per-band Q to provide subtle signal-shaping without harsh artifacts.
This EQ employs the same circuitry as the 4-band semi-parametric EQ in the ADL 700. All three bands have Gain (±16 dB) and Frequency controls and fixed Q (0.5), and the mid and high bands have overlapping frequency ranges. The low and high bands are switchable between shelving and peak. The EQ can also be hard-bypassed.