Introduction
The MEDca Premium Active Personal Sound Amplifier AVA-16 is a compact, pocket-sized device designed to enhance ambient sounds. It features solid-state microelectronic circuitry and comes with high-quality headphones for both mono and stereo listening. This manual provides essential information for the safe and effective use of your sound amplifier.
Safety Information
- Do not expose the device to extreme temperatures, moisture, or direct sunlight.
- Keep the device and its components out of reach of children and pets.
- Avoid dropping or subjecting the device to strong impacts.
- Do not attempt to open or repair the device yourself. Contact customer support for assistance.
- Remove batteries if the device will not be used for an extended period.
- Use only specified battery types.
Package Contents
- MEDca Premium Active Personal Sound Amplifier AVA-16 unit
- Two sets of interchangeable headphones (mono and stereo)
- Belt clip
- AAA battery (1.5V)
- User Manual
Device Overview
Familiarize yourself with the components of your MEDca AVA-16 sound amplifier:
Image: The MEDca AVA-16 amplifier unit with attached headphones, showing its compact design.
- Main Unit: Houses the amplifier, battery compartment, and controls.
- Headphone Jack: For connecting the included headphones.
- Volume Control: Adjusts the sound amplification level.
- Mode Switch (N-H): Selects between Normal (N) and High (H) frequency amplification modes.
- Microphone: Integrated into the unit to capture ambient sounds.
- Belt Clip: For attaching the unit to clothing.
Setup
1. Battery Installation
The device requires one AAA battery for operation.
- Locate the battery compartment on the back of the amplifier unit.
- Slide open the battery compartment cover.
- Insert one AAA battery, ensuring the correct polarity (+ and -) as indicated inside the compartment.
- Close the battery compartment cover securely.
Image: Close-up of the MEDca AVA-16 unit showing the battery compartment being opened for battery insertion.
2. Headphone Connection
The MEDca AVA-16 includes two sets of headphones for flexible listening.
- Select either the mono or stereo headphone set based on your preference.
- Plug the headphone jack firmly into the headphone port on the amplifier unit.
Image: Various ear tips provided with the MEDca AVA-16 headphones for comfortable fit.
3. Wearing the Device
The amplifier is designed for comfortable and discreet wear.
- Insert the earbuds comfortably into your ears.
- Use the integrated belt clip to attach the amplifier unit to your clothing, such as a pocket or belt, for hands-free operation.
Image: The MEDca AVA-16 amplifier unit showing its belt clip for attachment to clothing.
Operating Instructions
1. Powering On/Off
To power on the device, rotate the volume control dial clockwise until you hear a click. To power off, rotate the dial counter-clockwise until it clicks off.
2. Adjusting Volume
Once powered on, slowly rotate the volume control dial to increase or decrease the sound amplification to a comfortable listening level. Avoid excessively high volumes to prevent potential hearing discomfort.
Image: Close-up of the MEDca AVA-16 unit highlighting the volume control dial and mode switch.
3. Mode Selection (N-H Switch)
The device features an N-H switch to optimize sound for different environments:
- N (Normal) Mode: Provides a balanced amplification suitable for most general listening situations.
- H (High) Mode: Enhances higher frequencies, which can be beneficial in situations where speech clarity is desired or in quieter environments.
Experiment with both modes to determine which setting provides the best listening experience for your specific needs.
4. Mono and Stereo Use
The MEDca AVA-16 supports both mono and stereo listening:
- Mono: Use a single earbud for amplification in one ear. This can be useful for maintaining awareness of your surroundings.
- Stereo: Use both earbuds for amplification in both ears, providing a more immersive sound experience.
Maintenance
Cleaning
- Wipe the amplifier unit with a soft, dry cloth. Do not use liquid cleaners or immerse the device in water.
- Clean the earbuds regularly with a dry, soft cloth to remove earwax or debris.
Storage
- Store the device in a cool, dry place away from direct sunlight and extreme temperatures.
- If storing for an extended period, remove the battery to prevent leakage.
Battery Replacement
Replace the AAA battery when the sound quality diminishes or the device stops functioning. Refer to the "Battery Installation" section for instructions.
Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| No sound | Device is off; Dead battery; Headphones not connected; Faulty headphones. | Turn on the device; Replace battery; Ensure headphones are fully plugged in; Try a different set of headphones if available. |
| Low or weak sound | Low battery; Volume too low; Earbuds blocked; Mode switch setting. | Replace battery; Increase volume; Clean earbuds; Try 'H' mode for higher frequency amplification. |
| Distorted sound | Volume too high; Low battery; Damaged headphones. | Decrease volume; Replace battery; Inspect headphones for damage and replace if necessary. |
| Short battery life | Old or low-quality battery; Continuous high volume use. | Use fresh, high-quality AAA batteries; Reduce volume when possible. |
Specifications
| Feature | Specification |
|---|---|
| Model Number | AVA-16 |
| Max Output | 129 +/-5 dB |
| Max Sound Gain | 55 +/-5 dB |
| Harmonic Wave Distortion | <5 % |
| Frequency Range | 450 ~ 3500 Hz |
| Input Noise | <30 dB |
| Battery Type | 1 x AAA (1.5V) |
| Battery Current | <4 mA |
| Estimated Battery Life | Up to 30 hours |
| Material | Plastic |
| Dimensions | 1 x 1 x 1 cm (approximate) |
| Weight | 132 g (approximate) |
Warranty and Support
MEDca is committed to customer satisfaction. If you encounter any issues with your MEDca Premium Active Personal Sound Amplifier AVA-16 or have questions not covered in this manual, please contact MEDca customer support for assistance. Refer to your purchase documentation for specific warranty terms and contact information.