Introduction
The JHS Pedals 3 Series Hall Reverb is a high-quality effects pedal designed to provide expansive and atmospheric reverb sounds. Part of the JHS 3 Series, this pedal offers affordability and simplicity without compromising on sound quality. It is crafted in Kansas City, MO, utilizing premium components and undergoing rigorous quality control to ensure reliable performance. This manual provides essential information for setting up, operating, and maintaining your JHS Pedals 3 Series Hall Reverb.

Figure 1: JHS Pedals 3 Series Hall Reverb Pedal
Product Features
- Inspired by the sounds of large reverberated spaces, cathedrals, and halls, creating massive and infinite decay.
- Ideal for players seeking expansive, infinite, and otherworldly reverb effects.
- Features three simple controls and one toggle switch, offering a wide range of sounds suitable for both beginners and experienced musicians.
- Manufactured in Kansas City, MO, ensuring high-quality parts, stringent quality control, and meticulous attention to detail.
- Operates on 9V DC Negative Center power and consumes 70mA.
Controls and Functions
The JHS Pedals 3 Series Hall Reverb features intuitive controls for shaping your desired reverb sound.

VERB Knob
Controls the overall mix or wetness of the reverb effect. Turn clockwise to increase the amount of reverb blended with your dry signal.

DAMPEN Knob
Adjusts the tone or brightness of the reverb tail. Turning it clockwise will make the reverb brighter and more open, while counter-clockwise will make it darker and more subdued.

DECAY Knob
Determines the length of the reverb tail. Clockwise rotation increases the decay time, allowing the reverb to sustain longer, creating larger hall sounds.

MODULATE Toggle Switch
Engages or disengages a subtle modulation effect on the reverb tail. This adds movement and depth to the reverb, enhancing the spaciousness.
Setup
- Power Connection: Connect a standard 9V DC negative center power supply (not included) to the power input jack on the pedal. The pedal consumes 70mA. Ensure your power supply meets these specifications to prevent damage.
- Input Connection: Connect your instrument (guitar, bass, keyboard, etc.) to the "INPUT" jack on the right side of the pedal using a standard 1/4-inch instrument cable.
- Output Connection: Connect the "OUTPUT" jack on the left side of the pedal to your amplifier, audio interface, or the next pedal in your signal chain using a standard 1/4-inch instrument cable.
- Signal Chain Placement: Reverb pedals are typically placed towards the end of your effects chain, after gain pedals (overdrive, distortion, fuzz) and modulation pedals (chorus, flanger, phaser), but before delay pedals if you prefer the delay to repeat the reverbed sound. Experiment with placement to find your preferred sound.

Figure 2: Input and Output Connections
Operating Instructions
Once connected, the JHS Pedals 3 Series Hall Reverb is ready for use. The pedal is activated by pressing the footswitch.
- Engaging the Effect: Press the footswitch to toggle the reverb effect on or off. The LED indicator will illuminate when the effect is active.
- Adjusting Reverb Depth: Use the VERB knob to control the intensity of the reverb. Start with the knob at 9 o'clock for a subtle effect and increase clockwise for a more pronounced, ambient sound.
- Shaping Reverb Tone: The DAMPEN knob allows you to adjust the brightness of the reverb. Turn it counter-clockwise for a darker, warmer reverb, or clockwise for a brighter, more shimmering sound.
- Controlling Decay Time: The DECAY knob sets how long the reverb tail lasts. Shorter decay times (counter-clockwise) are suitable for subtle room sounds, while longer decay times (clockwise) create vast, cathedral-like spaces.
- Adding Modulation: Flip the MODULATE toggle switch to introduce a gentle modulation to the reverb. This adds a subtle movement and richness to the reverb, preventing it from sounding static.
Experiment with different combinations of the VERB, DAMPEN, and DECAY knobs, along with the MODULATE switch, to discover the wide range of hall reverb sounds available.
Maintenance
To ensure the longevity and optimal performance of your JHS Pedals 3 Series Hall Reverb, follow these maintenance guidelines:
- Cleaning: Use a soft, dry cloth to clean the pedal's enclosure. Avoid using abrasive cleaners or solvents, as they may damage the finish or internal components.
- Storage: Store the pedal in a cool, dry place away from direct sunlight, extreme temperatures, and high humidity.
- Handling: Handle the pedal with care. Avoid dropping it or subjecting it to strong impacts, which can damage the internal circuitry or external components.
- Power Supply: Always use a regulated 9V DC negative center power supply that meets the pedal's current requirements (70mA). Using an incorrect power supply can lead to malfunction or permanent damage.
Troubleshooting
If you encounter issues with your JHS Pedals 3 Series Hall Reverb, consider the following troubleshooting steps:
| Problem | Possible Cause | Solution |
|---|---|---|
| No sound when pedal is engaged. | Incorrect power supply, faulty cables, incorrect connections, pedal not receiving power. |
|
| Unwanted noise or hum. | Ground loop, faulty power supply, interference from other electronics, poor cable shielding. |
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| Effect is too subtle or too extreme. | Knob settings are not optimized for desired sound. |
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If problems persist after attempting these solutions, please contact JHS Pedals customer support or consult their official website for further assistance.
Specifications
| Feature | Detail |
|---|---|
| Model Number | 3SHR |
| Dimensions (L x W x H) | 5.85 x 3.45 x 3 inches |
| Item Weight | 0.68 Pounds (approx. 10.9 ounces) |
| Body Material | Metal |
| Color | White |
| Connector Type | 1/4 inch (6.35mm) audio jack |
| Hardware Interface | 1/4-inch Audio |
| Signal Format | Analog |
| Power Source | Corded Electric |
| Voltage | 9V DC Negative Center |
| Current Draw | 70mA |
| Date First Available | October 15, 2021 |
Warranty and Support
For detailed warranty information and customer support, please refer to the official JHS Pedals website or contact their customer service directly. Warranty terms and conditions may vary by region and retailer.
You can visit the official JHS Pedals store for more information: JHS Pedals Store