Introduction
Thank you for purchasing this product. Please read this User Manual carefully before use and keep it for future reference.
Safety Instructions
General Safety
- When not in use, turn off the power switch.
- This device has a built-in lithium battery. Avoid storing the battery without power for extended periods, as this will significantly reduce its lifespan. Charge the device promptly when the battery is low. If storing for a long time, ensure the product is fully charged before storage.
- The built-in 3.7V/3000mAh lithium battery is rechargeable and takes approximately 4 hours to fully charge. It supports a maximum charging input of 5V/1A.
Detailed Safety Instructions
- Do not attempt to disassemble this product as it contains a built-in lithium battery.
- Do not use the product in rain, near water, or in damp areas. Prevent water or other liquids from entering the product.
- Avoid dropping the unit or striking it against hard surfaces to prevent damage.
- Do not shock, throw, or vibrate this product.
- Clean only with a clean, dry cloth. Do not use flammable substances such as benzene, thinner, or detergent.
- Do not open this equipment or attempt to disassemble its internal parts or make modifications. This product does not contain user-serviceable parts.
- When using headphones, adjust the volume starting from a low level to avoid damaging the headphones or your hearing.
- Do not dispose of this product with household waste. Proper disposal can reduce pollution and health risks. Contact your local dealer for correct disposal methods.
- This product is manufactured to strict specifications. Purchase from authorized sources. If purchased online, by mail, or by phone, verify that the product is suitable for use in your region. Using the product in an unverified area is dangerous and may void the manufacturer's or distributor's warranty. Keep your receipt as proof of purchase for warranty claims.
Parts and Functions
The front panel of the STRICH SEA-20 features the following controls and connectors:
- 1. BT: Bluetooth switch and status indicator.
- 2. BT./AUX VOL: Bluetooth/AUX volume knob.
- 3. GAIN: Gain control.
- 4. TONE: Tone control.
- 5. OFF/POWER: Charging indicator light.
- 6. VOL: Power ON/OFF input volume control.
- 7. CLEAN/DIST.: Tone selection switch (CLEAN/DIST.) and status indicator.
- 8. INPUT: Input connector for guitar or bass.
- 9. DC 5V: USB-C charging port.
- 10. ?: Headphone output connector.
- 11. AUX IN: Auxiliary input connector for external audio sources.
How to Use SEA-20
- Turn the VOL knob clockwise to power on the device. The CLEAN/DIST. status indicator will show green (Clean) or red (Distortion) when operating.
- Connect your bass or guitar to the INPUT connector. Select the appropriate tone using the CLEAN/DIST. switch. Adjust the GAIN, TONE, and VOL knobs to set the desired tone and volume.
- The SEA-20 has built-in Bluetooth communication. To play music wirelessly, press the BT switch; the Bluetooth indicator light will flash. Enable Bluetooth on your mobile device, search for "SEA-20" in the device list, and pair. Once successfully paired, the Bluetooth indicator light will remain steadily lit.
- Connect an external audio source (e.g., MP3 player) to the AUX IN connector to play music through the amplifier.
- Use the PHONES jack to connect headphones for silent practice sessions.
- The charging port (DC 5V) can be used to charge the product using the included "USB-A to USB-C Charging Cable".
- If the battery level is too low, the device will display "No power" and automatically shut down. Please charge the device promptly. During charging, the "CHARGE" indicator light will be red; it will turn green when the battery is fully charged.
Specifications
| Parameter | Value |
|---|---|
| Rated Power | 2x5W |
| Headphones Impedance | 300Ω |
| Input Impedance | 1MΩ |
| Auxiliary Input Impedance | 10KΩ |
| Speaker Impedance | 4Ω |
| Wireless Version | 5.1 |
| Battery | 3.7V/3000mAh |
| Power Supply | DC 5V/1A (USB-C) |
| Dimensions | 152(L) x 71(W) x 101(H) mm |
| Weight | 600g |
Packing List
- SEA-20 x1
- USB-A to USB-C Charging Cable x1
- User Manual x1
FCC Warning
This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses, and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation.
If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures:
- Reorient or relocate the receiving antenna.
- Increase the separation between the equipment and receiver.
- Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
- Consult the dealer or an experienced radio/TV technician for help.
Caution: Any changes or modifications to this device not explicitly approved by the manufacturer could void your authority to operate this equipment.
This device complies with part 15 of the FCC Rules. Operation is subject to the following two conditions:
- This device may not cause harmful interference, and
- this device must accept any interference received, including interference that may cause undesired operation.
This equipment complies with FCC radiation exposure limits set forth for an uncontrolled environment. This equipment should be installed and operated with minimum distance 0cm between the radiator and your body.
