The Aurora Compressor/Sustainer is a modernized version of the classic MXR Dyna Comp and Ross Compressor pedals. It incorporates the best features of both pedals while adding some improvements.

The MXR Dyna Comp has been a popular choice among guitarists for over 40 years. Its simple yet effective circuit design has made it a staple in many pedalboards. The Aurora Compressor/Sustainer builds upon this legacy by using an updated version of the original circuit.

The Ross Compressor, on the other hand, gained attention in the 1990s when Trey Anastasio of Phish rediscovered it. It offered better power supply filtering and lower noise compared to the Dyna Comp. The Aurora takes inspiration from the Ross Compressor and incorporates these improvements.

One notable modification in the Aurora is the replacement of the obsolete CA3080 with the LM13700. The LM13700 is essentially a dual CA3080 but is still in production and readily available. This ensures that the Aurora can be easily built and maintained.

Another modification is in the output section of the pedal. The Aurora takes the signal from a different part of the envelope detector, resulting in reduced ripple and distortion. However, the pedal is designed in such a way that you can still build the “stock” version and retain the classic output stage if you prefer the added distortion.

Overall, the Aurora Compressor/Sustainer combines the best elements of the MXR Dyna Comp and Ross Compressor while introducing some modern improvements. It is a versatile and reliable compressor pedal that is sure to please guitarists looking for that classic compressed sound.

Summary created by AI from the original source.