One Control OC-1LB-1

One Control Minimal Series 1 Loop Box

Model: OC-1LB-1

Product Overview

The One Control Minimal Series 1 Loop Box is a compact and essential tool for guitarists and musicians looking to integrate external effects pedals into their signal chain with true bypass functionality. This device allows you to switch a single effects loop in or out of your signal path, preserving your tone when the loop is disengaged. Its minimalist design ensures a small footprint on your pedalboard while providing robust and reliable performance.

Product Diagram

Top-down view of the One Control Minimal Series 1 Loop Box, showing input, output, send, return jacks, and footswitch.

Figure 1: Top-down view of the Minimal Series 1 Loop Box, highlighting the input, output, send, and return jacks, along with the footswitch and LED indicator. The device is black with white labeling.

Setup Guide

Follow these steps to properly set up your Minimal Series 1 Loop Box:

  1. Power Connection: The Minimal Series 1 Loop Box is a passive device and does not require external power for its basic switching function. The LED indicator, however, requires a standard 9V DC power supply (center negative, not included) connected to the power jack.
  2. Input Connection: Connect your instrument (guitar, bass, etc.) or the output of your preceding pedal in the signal chain to the INPUT jack on the side of the Loop Box.
  3. Output Connection: Connect the OUTPUT jack on the opposite side of the Loop Box to your amplifier's input or the next pedal in your signal chain.
  4. Effects Loop Connection:
    • Connect the SEND jack of the Loop Box to the input of the effect pedal(s) you wish to place in the loop.
    • Connect the output of the last effect pedal in your loop to the RETURN jack of the Loop Box.
  5. Cable Management: Ensure all cables are securely connected and routed to prevent accidental disconnections or tripping hazards.

Operating Instructions

The Minimal Series 1 Loop Box is designed for straightforward operation:

  • Engaging the Loop: Press the footswitch to engage the effects loop. When engaged, your signal will pass through the pedals connected to the SEND and RETURN jacks. The LED indicator will illuminate (if powered) to show that the loop is active.
  • Bypassing the Loop: Press the footswitch again to bypass the effects loop. When bypassed, your signal will go directly from the INPUT to the OUTPUT, completely bypassing the pedals in the loop. This ensures a true bypass signal path, preserving your original tone. The LED indicator will turn off (if powered) when the loop is bypassed.
  • LED Indicator: The LED provides a visual cue for the loop's status. It lights up when the loop is engaged and turns off when bypassed. This requires a 9V DC power supply.

Maintenance

To ensure the longevity and optimal performance of your Minimal Series 1 Loop Box, follow these maintenance guidelines:

  • Cleaning: Use a soft, dry cloth to clean the exterior of the unit. Avoid using abrasive cleaners, solvents, or excessive moisture, as these can damage the finish or internal components.
  • Storage: Store the unit in a cool, dry place away from direct sunlight, extreme temperatures, and high humidity when not in use.
  • Connections: Periodically check all cable connections for tightness and ensure there is no corrosion on the jacks. If necessary, use a contact cleaner specifically designed for audio jacks.
  • Footswitch: The footswitch is designed for durability, but avoid excessive force when engaging or disengaging the loop.

Troubleshooting

ProblemPossible CauseSolution
No sound when loop is engaged.Incorrect cabling in the loop; faulty pedal in the loop; faulty patch cable.Check all connections to the SEND and RETURN jacks. Test the pedals in the loop individually. Replace patch cables if necessary.
No sound when loop is bypassed.Faulty input/output cable; issue with the main signal chain.Ensure cables from instrument to INPUT and OUTPUT to amp are working correctly. Test the Loop Box by itself with known good cables.
LED does not light up.No power supply connected; incorrect power supply; faulty LED.Connect a standard 9V DC (center negative) power supply. Ensure the power supply is functional. The unit will still function as a passive switcher without power to the LED.
Added noise/hum.Ground loop; faulty cables; noisy pedals in the loop.Ensure all power supplies are isolated. Try different cables. Isolate and test pedals in the loop to identify the source of noise.

Specifications

  • Model: OC-1LB-1
  • Type: Passive True Bypass Loop Switcher
  • Connections: Input, Output, Send, Return (1/4" mono jacks)
  • Power Requirement (for LED): 9V DC (center negative)
  • Current Draw (for LED): Approximately 300 Milliamps
  • Dimensions (L x W x H): 5.25 x 2.85 x 2.35 inches
  • Weight: 4.9 ounces (0.14 Kilograms)
  • Color: Blue, Red (as per specifications, actual unit may appear black)
  • Signal Format: Analog

Warranty and Support

One Control products are built to high standards of quality and reliability. For specific warranty information and support inquiries, please refer to the official One Control website or contact their customer service directly. Keep your proof of purchase for any warranty claims.

For further assistance, visit the One Control official website.

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