AKG C411 High Performance Miniature Condenser Vibration Pickup Instruction Manual

June 4, 2024
AKG

AKG Logo C411III(L, PP)
HIGH-PERFORMANCE MINIATURE
CONDENSER VIBRATION PICKUP
Vor Inbetriebnahme des Gerätes lesen!
USER INSTRUCTIONS
Read the manual before using the equipment!
AKG C411 High Performance Miniature Condenser Vibration
Pickup

C411 High-Performance Miniature Condenser Vibration Pickup

LEGAL NOTICE
Publisher

AKG Acoustics GmbH AKG ACOUSTICS, U.S.
Laxenburger Straße 254 8500 Balboa Blvd. Dock 15
1230 Vienna Northridge, CA 91329
Austria U.S.A.
Tel: +43 (0)1 86654-0 Tel: +1 818 920-3224
Fax: +43 (0)1 86654-8800
sales@akg.com

akgusatechsupport@harman.com

Copyright
© 2015 AKG Acoustics GmbH
All rights reserved.
The information contained in this manual, including any drawings and photos provided, is the intellectual property of AKG Acoustics GmbH.
In accordance with copyright law, it is not permitted for this document or parts thereof to be reproduced or transmitted for any purpose in any form using any means,  whether electronic or mechanical, by photocopying, recording, or using information storage and information processing systems without the express, written consent of AKG  Acoustics GmbH. Forwarding to third parties is not permitted. This manual should be returned to us upon request.
Updates
Dieses Manual kann ohne Vorankündigung geändert werden und stellt keine Verpflichtung seitens der Firma AKG Acoustics GmbH dar.
Version 1.0
Publication date August 2015/EN

Printed in Hungary

SAFETY AND ENVIRONMENT

Risk of damage
Please make sure that the piece of equipment your microphone will be connected to fulfills the safety regulations in force in your country and is fitted with a ground lead.

1.1 Environment

  • **** In case of scrapping the equipment, separate the housing, electronics, and cables and dispose of all the components in accordance with the appropriate waste disposal regulations.
  • The packaging is recyclable. Dispose of the packaging via an appropriate collection system provided for this purpose.

Description

2.1 Introduction
Thank you for your decision to buy an AKG product. Please read the user instructions carefully, before using the unit and keep them in a safe place so that you can refer to them in the future at any time. We wish you a lot of fun!
2.2 Package content

  • C411 III PP or C411 III L
  • Adhesive compound
  • Microphone bag
    Check that the package contains all the parts given above. If anything is missing, please contact your AKG dealer.

2.4 Features

  • Rugged vibration pickup for instrument miking on stage.
  • Frequency response tailored to acoustic guitar, banjo, zither, and bowed string instrument miking.
  • Complete with adhesive compound for mounting the pickup directly on the instrument.

2.5 Brief Description
The C411 III is a vibration pickup that converts the vibrations of an instrument’s soundboard into an electrical signal. The C411 III has been specifically designed for direct attachment to an acoustic guitar, banjo, zither, or bowed string instrument and ensures absolutely accurate coloration- free reproduction. The supplied adhesive compound for attaching the pickup will leave wooden, plastic, and metal surfaces untainted.
2.6 Versions
The C 411 III is available in two versions:

  • For 9 to 52 V universal phantom power. (3-m) permanently attached connecting cable with phantom power adapter with integrated 3-pin XLR connector.
  • For use with the B23 L battery power supply, MPA V L phantom power adapter, or AKG Wireless bodypack transmitters. 5-ft. (1.5-m) permanently attached connecting cable with 3-pin mini XLR connector

Interfacing

The C411 III pickup is a condenser transducer and therefore needs a power supply.
Using any power supply other than those recommended by AKG may damage your pickup and will void the warranty.
3.1 C411 III PP
3.1.1 Connecting to Balanced Inputs

AKG C411 High Performance Miniature Condenser Vibration Pickup -
Fig

  1. Connect the phantom power adapter (1) on the pickup cable to a balanced XLR microphone input with phantom power.
  2. Switch the phantom power on. (Refer to the instruction manual of the unit to which you connected your pickup.)
  3. If your mixer provides no phantom power: Connect the phantom power adapter (1) to an optional AKG phantom power supply (2) and use an XLR cable (3) to connect the phantom power supply to the desired balanced input.

3.1.2 Connecting to Unbalanced Inputs
You may connect any AKG phantom power supply (2) to an unbalanced input, too. Use a cable (3) with a female XLR connector and TS jack plug:

AKG C411 High Performance Miniature Condenser Vibration Pickup - Fig
1

  1. On the XLR connector (4), use a wire bridge to connect pin 1 to pin 3 and the cable shield.
  2. Connect the inside wire of the cable to pin 2 on the XLR connector (4) and the tip contact of the jack plug (5). Unbalanced cables may pick up interference from stray magnetic fields near power or lighting cables, electric motors, etc. like an antenna. This may introduce hum or similar noise if you use a cable that is longer than 16 feet (5 m).

3.2 C411 III L
The optional B23 L battery supply allows you to connect the pickup to balanced or unbalanced inputs with no phantom power.
3.2.1 Connecting to Balanced InputsAKG C411 High Performance Miniature
Condenser Vibration Pickup - Fig 2

  1. Connecting the cable: Push the mini XLR connector (1) on the pickup cable into one of the two mini XLR sockets on the B23 L (2) to the stop.
    The connector will lock automatically.
    Disconnecting the cable: To disconnect the cable, press the unlocking button on the mini XLR connector (1) and pull the connector (1) out of the socket.
    To avoid damaging the cable, never try to pull out the cable itself!

  2. Connect the B 23 L (2) to the desired input.
    Use a commercial XLR cable (3) to connect the B23 L (2) to a balanced input.

3.2.2 Connecting to Unbalanced Inputs
Refer to section 3.1.2.
3.2.3 Using the MPA V LAKG C411 High Performance Miniature Condenser
Vibration Pickup - Fig 3

  1. Connecting the cable:
    Push the mini XLR connector (1) on the pickup cable into the mini XLR socket (2) on the cable of the MPA V L (3) to the stop.
    The connector will lock automatically.
    Disconnecting the cable: refer to section 3.2.1.

  2. Connect the MPA V L (3) to a balanced XLR microphone input with phantom power.

  3. Switch the phantom power on. (Refer to the instruction manual of the unit to which you connected your pickup.)

  4. If your mixer provides no phantom power: Connect the MPA V L (3) to an optional AKG phantom power supply (4) and use an XLR cable (5) to connect the phantom  power supply (4) to the desired balanced input.

3.2.4 Connecting to a Bodypack Transmitter
Refer to the manual of your bodypack transmitter.

Use

4.1 Introduction
Since a soundboard vibrates differently in different places, you can get different sounds by carefully selecting the spot where you mount the pickup. Section 4.3 describes proven techniques that you may want to use as starting points for your own experiments.
4.2 Attaching the Pickup to the Instrument
If you are going to attach the pickup to a lacquered surface, check the condition of the lacquer coat first. If the lacquer coat is porous or cracked, the adhesive compound
will lose some of its tack and may damage the lacquer coat further when you remove the pickup.
AKG C411 High Performance Miniature Condenser Vibration Pickup - Fig
4

  1. Remove the backing from the supplied adhesive compound.
  2. Press some of the adhesive compound (just enough to cover the “footprint” of the pickup) on the underside of the pickup.
  3. Press the pickup onto the bridge of your instrument or onto the soundboard, near the bridge.

4.3 Hints on Microphone Placement

AKG C411 High Performance Miniature Condenser Vibration Pickup - Fig
5| Guitar
---|---
| Violin
AKG C411 High Performance Miniature Condenser Vibration Pickup -
Fig7| Banjo
| Zither

Troubleshooting

Problem Possible cause Remedy
No sound The power to the mixer and/or amplifier is off. Switch power to the

mixer or amplifier.
Channel or master fader on mixer or volume control on
the amplifier is at zero.| Set the channel or master fader on the mixer or volume control on the amplifier to the desired level.
The pickup is not connected to a mixer or amplifier.| Connect pickup to mixer or amplifier.
Cable connectors are seated loosely.| Check cable connectors for the secure seat.
The cable is defective.| Check the cable and replace it if damaged.
No supply voltage.| Switch phantom power on.
Phantom power supply: connect to a power outlet or insert the battery (batteries). Check the cable and replace if damaged.
Distortions| Gain control on the mixer set too high.| Turn gain control down CCW.
Mixer input sensitivity too high.| Connect a 10 dB pre-attenuation pad between the pickup cable and input.

Cleaning

Use a soft cloth moistened with water to clean the surface of the microphone body.

Technical data

Type: pre-polarized condenser transducer
Polar pattern: Figure 8
Frequency range: 10 – 18,000 Hz
Sensitivity: 1 mV/ms-2 (vibration pickup)
The impedance at 1,000 Hz: 200 Ω, unbalanced
Recommended load impedance: ≥1,000 ohms
Max. SPL for 1%/3% THD: 96 dB / 103 dB
Powering: C411 III  PP: 9 to 52 V universal phantom power C411 III

L: B 29 L battery power supply,
MPA V L phantom adapter,
AKG WMS bodypack transmitters
Current consumption:| approx. 2.2 mA
Cable length/Connector:| C411 III  PP: 3 m (10 ft.) / 3-pin male XLR C411 III
L: 1.5 m (5 ft.) / 3-pin mini XLR
Finish:| matte black
Dimensions:| 27 x 14 x 9.5 mm (1 x 0.6 x 0.4 in.).
Net/shipping weight:| C411 III  PP: 98 g (3.5 oz.) / 225 g (8 oz.) C411 III
L: 18 g (0.6 oz.) / 150 g (5.3 oz.)

AKG C411 High Performance Miniature Condenser Vibration Pickup -
Fig9

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References

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