Orange Kongpressor Optical Class A Compressor Pedal User Manual

1. Introduction

The Orange Kongpressor is an analog Class A compression pedal designed to add an organic, three-dimensional quality to your guitar rig. Inspired by iconic vintage optical studio units, it utilizes a re-issue of the famous vactrol VTL5C3 optocoupler, known for its distinctive sound on numerous hit records. This manual provides essential information for setting up, operating, and maintaining your Kongpressor pedal.

Key Features:

• Studio Quality Optical Compressor with Ultra-Smooth Bloom
• Up to 12dB Clean Boost capability
• Internal Charge Pump for optimal performance
• Transparent Buffered Bypass circuitry

2. Controls and Functions

The Kongpressor pedal features intuitive controls to shape your sound. Familiarize yourself with each knob's function:

Figure 1: Front view of the Orange Kongpressor pedal, showing the control layout.

• VOLUME:

  Adjusts the overall output level of the pedal. Can be used to achieve a clean boost when compression is set low.

• CHIME:

  An active treble circuit that allows for boosting or cutting of high frequencies, adding brightness or warmth to your tone.

• SQUASH:

  Controls the amount of compression applied to your signal. Higher settings result in more pronounced compression and sustain.

• RELEASE:

  Determines how quickly the compressor returns to its uncompressed state after the signal drops below the threshold. Ranges from fast to slow.

• ATTACK:

  Controls how quickly the compressor engages after the signal exceeds the threshold. Ranges from fast to slow, affecting the initial transient of your notes.

• Footswitch:

  Engages or bypasses the effect. The blue LED will illuminate, indicating when the pedal is active.

3. Setup

Follow these steps to properly connect your Orange Kongpressor pedal:

1. Power Connection: Connect a 9-12V DC power supply (center-negative) to the power input jack on the side of the pedal. The internal charge pump will convert 9V to 18V for optimal headroom. The pedal can also be battery powered.
   

   Figure 2: Side view illustrating the DC power input.

2. Input Connection: Connect your guitar or other instrument to the 1/4 inch audio input jack on the right side of the pedal.
3. Output Connection: Connect the 1/4 inch audio output jack on the left side of the pedal to your amplifier or the next pedal in your signal chain.
   

   Figure 3: Angled view showing the input and output jacks.

4. Power On: Once all connections are secure, activate the pedal by pressing the footswitch. The blue LED will illuminate, indicating the pedal is active.

4. Operating the Pedal

The Kongpressor is designed for versatile use, from subtle signal evening to pronounced sustain and boost. Experiment with the controls to find your desired sound.

• Subtle Compression: For a natural, transparent compression that evens out your playing dynamics, set the SQUASH knob to a lower position. Adjust VOLUME to match your desired output level.
• Increased Sustain: Turn the SQUASH knob higher for more noticeable compression and extended sustain. You may need to adjust the VOLUME to compensate for perceived loudness changes.
• Clean Boost: With the SQUASH knob set low (minimal compression), increase the VOLUME knob to use the pedal as a transparent clean boost.
• Tone Shaping with CHIME: Use the CHIME control to fine-tune the high-frequency content. Turn clockwise to add sparkle, or counter-clockwise to mellow out brighter tones.
• Attack and Release: These controls allow you to tailor how the compressor reacts to your playing.
  • A fast attack (counter-clockwise) will compress the initial transient of your notes, resulting in a smoother, less percussive sound.
  • A slow attack (clockwise) allows more of the initial pick attack to pass through before compression engages, preserving dynamics.
  • A fast release (counter-clockwise) will quickly return the signal to its uncompressed state, which can sound more natural for some playing styles.
  • A slow release (clockwise) will hold the compression longer, increasing sustain and potentially creating a 'pumping' effect at extreme settings.

5. Specifications

6. Maintenance

To ensure the longevity and optimal performance of your Kongpressor pedal, follow these maintenance guidelines:

• Cleaning: Use a soft, dry cloth to clean the pedal's exterior. Avoid abrasive cleaners or solvents, which can damage the finish and artwork.
• Storage: Store the pedal in a cool, dry place away from direct sunlight and extreme temperatures when not in use.
• Power: Always use a compatible 9-12V DC center-negative power supply. Disconnect power when the pedal is not in use for extended periods.
• Connections: Periodically check all cable connections for tightness and wear. Loose connections can lead to signal loss or noise.

7. Troubleshooting

If you encounter issues with your Kongpressor pedal, try the following troubleshooting steps:

• No Sound:
  • Ensure all cables (input, output, power) are securely connected.
  • Verify that the power supply is functioning correctly and meets the 9-12V DC center-negative requirement.
  • Check if your guitar and amplifier are working properly by bypassing the pedal.
• Unwanted Noise/Hum:
  • Ensure you are using a regulated power supply.
  • Try isolating the pedal from other power sources or pedals to identify interference.
  • Check for faulty cables.
• Effect Not Engaging:
  • Confirm the blue LED illuminates when the footswitch is pressed. If not, check power.
  • Ensure the VOLUME knob is not set to zero.

If these steps do not resolve the issue, please contact Orange customer support.

8. Warranty and Support

Orange products are built to high standards and come with a manufacturer's warranty against defects in materials and workmanship. Please refer to the warranty card included with your product or visit the official Orange Amplification website for detailed warranty terms and conditions.

Customer Support:

For technical assistance, service, or warranty inquiries, please contact Orange customer support:

• Address: OAKLAND, NJ, 07436 US
• Website: www.orangeamps.com