1. Introduction and Overview
The BOSS CE-5 Chorus Ensemble is a compact guitar effects pedal designed to produce a wide range of chorus effects. It features high- and low-cut filters, allowing users to shape the chorus sound from subtle and natural to clear and penetrating stereo effects. This pedal is equipped with mono input and stereo outputs for versatile connection options, including dual amplifiers or studio setups. It offers comprehensive control over the effect parameters through its dedicated knobs.
Key Features:
- Stereo Chorus Ensemble Pedal for Guitar.
- Mono input and Stereo outputs for connection to dual amplifiers or for studio use.
- Offers Effect Level, Rate, Depth, and Filter knobs for complete control over the chorus effect.
- Produces a range of chorusing effects, from subtle to extreme.
Figure 1.1: Front view of the BOSS CE-5 Chorus Ensemble pedal, showing the control knobs and footswitch.
2. Setup
2.1 Power Supply
The CE-5 pedal can be powered by a 9-volt battery or an optional AC adapter (PSA series, sold separately). A 9V (6F22) battery is typically included for initial use. To install or replace the battery:
- Loosen the thumbscrew on the front of the pedal and open the pedal cover.
- Remove the old battery (if present) and disconnect its snap connector.
- Connect the new 9-volt battery to the snap connector.
- Place the battery inside the battery compartment and close the pedal cover.
- Secure the thumbscrew.
When using an AC adapter, connect it to the DC IN jack. The AC adapter will automatically disable the battery when connected.
2.2 Connections
Ensure all connections are made before turning on your amplifier or other audio equipment.
- Input: Connect your guitar or the output of another effects pedal to the INPUT jack.
- Output A (Mono): Connect this jack to your amplifier's input for a mono chorus effect.
- Output B: For stereo operation, connect Output A to one amplifier and Output B to a second amplifier. This creates a wider, more expansive stereo chorus sound.
- DC IN: Connect a 9V DC AC adapter (BOSS PSA series recommended) here.
Figure 2.1: Angled view of the BOSS CE-5, highlighting the input and output jacks.
3. Operating the Pedal
The CE-5 features four control knobs to adjust the chorus effect:
- E.LEVEL (Effect Level): This knob adjusts the overall volume of the chorus effect. Turn it clockwise to increase the effect level, and counter-clockwise to decrease it.
- RATE: Controls the speed of the chorus modulation. Higher settings (clockwise) result in a faster, more warbling chorus, while lower settings (counter-clockwise) produce a slower, more subtle sweep.
- DEPTH: Determines the intensity or "depth" of the chorus effect. Turning this knob clockwise increases the perceived thickness and movement of the chorus.
- FILTER: This unique control allows you to shape the frequency range of the chorus effect.
- CUT HIGH: Turning the knob counter-clockwise from the center "FLAT" position cuts high frequencies, resulting in a warmer, darker chorus.
- CUT LOW: Turning the knob clockwise from the center "FLAT" position cuts low frequencies, making the chorus brighter and more defined.
- FLAT: The center position provides a full-range chorus effect without any frequency cuts.
To activate the effect, press the pedal switch. The CHECK indicator will illuminate when the effect is active. Press the switch again to bypass the effect.
4. Maintenance
- Cleaning: Use a soft, dry cloth to clean the pedal. Avoid abrasive cleaners or solvents.
- Battery Replacement: Replace the 9-volt battery when the CHECK indicator dims or fails to light when the effect is active. Always remove the battery if the pedal will not be used for an extended period to prevent leakage.
- Storage: Store the pedal in a cool, dry place away from direct sunlight and extreme temperatures.
- Jacks and Cables: Periodically check all input and output jacks for debris or loose connections. Use high-quality instrument cables for optimal performance.
5. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| No sound or weak sound when effect is on. |
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| Effect is not engaging. |
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| Unwanted noise or hum. |
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6. Specifications
- Model: CE-5
- Nominal Input Level: -20 dBu
- Input Impedance: 1 M ohm
- Nominal Output Level: -20 dBu
- Output Impedance: 1 k ohm
- Recommended Load Impedance: 10 k ohms or greater
- Controls: E.LEVEL knob, RATE knob, DEPTH knob, FILTER knob, Pedal switch
- Indicator: CHECK indicator (also serves as battery check indicator)
- Connectors: INPUT jack, OUTPUT A (MONO) jack, OUTPUT B jack, AC adapter jack (DC 9 V)
- Power Supply: 9V DC battery (6F22/9V) or AC adapter (PSA series)
- Current Draw: 22 mA (DC 9 V)
- Dimensions (W x D x H): 73 x 129 x 59 mm (2-7/8 x 5-1/8 x 2-3/8 inches)
- Weight: 410 g (15 oz.) (including battery)
- Accessories: Owner's Manual, 9V battery (6F22/9V)
- Optional Accessories: AC adapter (PSA series)
* 0 dBu = 0.775 Vrms
* Specifications are subject to change without notice.
7. Warranty and Support
For warranty information and customer support, please refer to the warranty card included with your product or visit the official BOSS website. You can also find additional resources and contact information on the BOSS Store on Amazon.
Always purchase from authorized dealers to ensure product authenticity and valid warranty coverage.
