1. Introduction
This manual provides comprehensive instructions for the proper setup, operation, and maintenance of your AKG C411 L High-Performance Miniature Condenser Vibration Pickup. Please read this manual thoroughly before using the product to ensure optimal performance and longevity.
The AKG C411 L is a miniature vibration pickup designed for acoustic guitars, mandolins, violins, and other string instruments. It features an integrated condenser capsule engineered to reproduce the instrument's sound clearly and without coloration. Its ultra-light design ensures it does not alter the instrument's balance.
2. Product Features
- Condenser Transducer: Housed in a sealed enclosure for clear and uncolored sound reproduction.
- Ultra-Light Design: Weighing approximately 18g (0.6oz), it does not affect the instrument's balance.
- Figure-8 Polar Pattern: Accurately captures audio signals.
- Mini XLR Connector: Equipped with a professional three-pin mini XLR connector, compatible with AKG wireless microphone body-pack transmitters.
3. Package Contents
Verify that all items listed below are present in your product packaging:
- AKG C411 L Miniature Condenser Vibration Pickup
- Non-marking, solvent-free adhesive pad
- Protective pouch
Figure 3.1: The AKG C411 L Miniature Condenser Vibration Pickup with its Mini XLR connector.
Figure 3.2: An AKG branded protective pouch, typically included for storage.
4. Setup
4.1 Attaching the Pickup
- Identify a suitable placement on your instrument, typically on or near the bridge. Experimentation may be required to find the optimal sound.
- Clean the surface of the instrument where the pickup will be attached to ensure proper adhesion.
- Peel the protective backing from the included non-marking, solvent-free adhesive pad.
- Carefully press the C411 L pickup onto the chosen spot on your instrument. Ensure a secure attachment without applying excessive force that could damage the instrument.
4.2 Connecting the Pickup
- Connect the professional three-pin mini XLR connector of the C411 L to the input of a compatible AKG wireless microphone body-pack transmitter.
- Ensure the body-pack transmitter is powered on and configured correctly according to its own instruction manual.
- The C411 L requires phantom power, which is typically supplied by the connected body-pack transmitter or a compatible preamplifier. Verify that your connected device provides the necessary phantom power.
5. Operating Instructions
5.1 Sound Optimization
The sound quality of the C411 L is highly dependent on its placement on the instrument. Experiment with different positions to achieve the desired tonal characteristics. Small adjustments can significantly impact the sound.
- Acoustic Guitar: Common placement areas include the bridge, soundboard near the bridge, or inside the soundhole.
- Violin/Mandolin: Often placed directly behind the bridge on the instrument's body.
- Other String Instruments: Test various points on the instrument's body or bridge to find the most resonant and balanced sound.
5.2 Gain Staging
Adjust the input gain on your body-pack transmitter or preamplifier to an appropriate level. Avoid setting the gain too high, which can lead to clipping and distortion, or too low, which can result in a weak signal and increased noise.
6. Maintenance
6.1 Cleaning
To clean the C411 L pickup, gently wipe its exterior with a soft, dry cloth. Do not use liquid cleaners, solvents, or abrasive materials, as these can damage the unit.
6.2 Storage
When not in use, store the C411 L in its protective pouch in a cool, dry place, away from direct sunlight and extreme temperatures. Avoid coiling the cable tightly to prevent damage.
7. Troubleshooting
- No Sound Output:
- Ensure the mini XLR connector is securely plugged into the body-pack transmitter.
- Verify that the body-pack transmitter is powered on and functioning correctly.
- Confirm that phantom power is being supplied to the C411 L.
- Check all cable connections in your audio chain.
- Weak or Distorted Sound:
- Adjust the input gain on your body-pack transmitter or preamplifier.
- Re-evaluate the pickup's placement on the instrument. Small adjustments can improve sound quality.
- Ensure the adhesive pad provides firm contact between the pickup and the instrument.
- Excessive Noise or Hum:
- Check for proper grounding in your audio system.
- Ensure all cables are in good condition and correctly connected.
- Move the pickup or instrument away from potential sources of electromagnetic interference (e.g., power supplies, fluorescent lights).
8. Specifications
| Feature | Specification |
|---|---|
| Model Name | C411 L |
| Microphone Form Factor | Miniature Vibration Pickup |
| Polar Pattern | Bidirectional (Figure-8) |
| Connectivity Technology | Wired (Mini XLR) |
| Connector Type | Mini XLR (3-pin) |
| Power Source | Phantom Power (via compatible body-pack or preamplifier) |
| Audio Sensitivity | 103 Decibels |
| Signal-to-Noise Ratio | 78 dB |
| Item Weight | 0.35 Pounds (approx. 5.6 ounces / 18g) |
| Product Dimensions (L x W x H) | 1 x 0.6 x 0.4 inches |
| Material | Plastic |
| Color | Black |
| Manufacturer | AKG |
| Compatible Devices | Audio Interface, AKG Body-pack Transmitters |
| Recommended Uses | Live Instrument, Video Recording, Voice Recording |
9. Warranty and Support
Warranty information for the AKG C411 L is typically provided with the product at the time of purchase or can be found on the official AKG website. For detailed warranty terms, technical support, or service inquiries, please refer to the documentation included with your product or visit the official AKG support portal.
You can find more information and support resources by visiting the AKG Support Website.
