Optivalve

The Gurus Optivalve MKII is a tube-optical compressor pedal designed to replicate the characteristics of legendary studio outboard compressors while offering versatility and ease of use for various applications. Here are the technical specifications and features:

- Power In: 12VDC (negative TIP)
- Consumption at 12V: max 300mA
- Input Impedance: ≤1M Ohm
- Output Impedance: ≤10K Ohm
- Signal-to-Noise Ratio: <90db
- Maximum Distortion: 2% THD
- Estimated Tube Life: Up to 5000 hours
- Dimensions: Width 220mm (8.6”), Length 130mm (5.1”), Height 50mm (2”)
- Weight: 0.7Kg (1.5lbs)

Key Features and Use Cases:
1. Soft Limiting/Enhancing: Provides maximum headroom for the amp without affecting its input, enhancing soft touch, and limiting when attacking notes harder.
2. Acoustic Guitar: Allows for tone matching and fine-tuning compression values for acoustic guitars, suitable for both live and studio applications.
3. Hard Track Limiting: Functions as a standard outboard effect on mixes for various instruments, offering a limiter with tone control for optimal output sound.
4. Controls: The pedal features various controls including Input, Ratio, Output, Tone, Compression, Tube, True Bypass Switch, Instrument Input, Main Output, and Power DC12V - 300mA.

The Optivalve MKII is based on a tube-optical circuit with a 12AU7 tube inside, influenced by the Teletronix LA-2A studio unit. It offers a versatile range of compression settings, makeup gain, and EQ adjustments, making it suitable for guitar, bass, keyboard, and acoustic guitar applications.

The pedal is designed to provide transparent compression with added sparkle, offering a subtle and beautiful compression effect. It features LED gain reduction metering and true bypass footswitch. The power requirements are 9 - 12 volts max, making it pedalboard-friendly.

The retail price for the Gurus Optivalve MKII is $349.