PC-2A by Effectrode

The Effectrode PC-2A is a compressor pedal with the following technical specifications and features:

- Input impedance: Greater than 1MΩ
- Output impedance: Less than 1KΩ
- Controls: Peak Reduction and Gain
- Features: Limit/Compress switch
- All tube: Based on a Sylvania N.O.S. mil-spec subminiature triode pencil tube operating in class-A
- Photo-optical: Ultra-linear, low distortion photo-resistive attenuator
- True bypass: With ‘anti-pop’ or ‘thump’ foot-switching circuitry
- Power requirements: 12VDC @ 600mA - Centre positive 2.1mm barrel connector
- Dimensions: Width 4.75"; Depth 3.75"
- Weight: 12oz (on Earth); 1.5oz (Callisto)
- Construction: Solid die-cast aluminum box
- Finish: Tough light-grey powder coat

The PC-2A is designed to provide musical and smooth compression, achieved through thermionic technology found in high-end vintage studio compressors. The signal path is 100% analogue, class A, based on a vintage Sylvania tube and a special design Silonex photo-resistive attenuator. The pedal is designed for flexibility, simplicity, and outstanding sound quality, utilizing audiophile-grade components and silver solder throughout the circuit.

The PC-2A features an all-tube audio path operating at amp plate voltages, ensuring maximum headroom and very low noise. It also includes a 'Proper' side-chain with A-weighted filtering, replicating the response of the human ear for natural and musical compression. The gain is controlled by an optical attenuator, ensuring minimal distortion and a smooth two-stage release characteristic.

The pedal also includes controls for Peak Reduction and Gain, as well as a Limit/Compress toggle switch to alter the transfer characteristic of the compressor input/output curve, enabling it to operate as a compressor and limiter. Additionally, it features a true bypass with 'anti-pop' or 'thump' foot-switching circuitry to reduce noise when engaging the pedal.

The PC-2A is a versatile and high-quality compressor pedal suitable for both live and studio applications, offering natural and quiet compression with a focus on preserving the attack characteristics while creating musical and transparent compression.