AKG SR 40 - User Manual

Questions and Answers

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christopher16Jul 30, 2025
Why does my AKG Microphone system have noise and crackling?
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  Crystal SimmonsJul 30, 2025
  Noise and crackling in your AKG Microphone system might be due to the antenna location. Try relocating the receiver. It could also be interference from other wireless systems, TV, radio, CB radios, or defective electrical appliances. In that case, switch off any interference sources or defective appliances. Alternatively, use a WMS 40 tuned to a different frequency or have your electrical installation checked.
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Paul WaltersAug 10, 2025
What to do if my AKG Microphone system has distortion?
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  Gabrielle RichardsAug 10, 2025
  If you are experiencing distortion with your AKG Microphone system, especially with a bodypack transmitter, the GAIN control might be set too high or too low. Adjust the GAIN control until the distortion stops. Another potential cause could be interference from other wireless systems, TV, radio, CB radios, or defective electrical appliances. Try switching off these interference sources or defective appliances, or use a WMS 40 tuned to a different frequency. If the issue persists, have your electrical installation checked.
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Monica ReyesAug 18, 2025
How to fix momentary loss of sound (“dropouts”) at some locations within performance area with AKG SR 40 Microphone system?
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  Christina StephensonAug 18, 2025
  If you experience momentary sound loss with your AKG Microphone system in certain spots, the antenna location might be the issue. Relocate the receiver. If these dead spots continue, mark them and avoid those areas.

Summary

Safety and Environment

Safety

Important safety precautions for operating the equipment and preventing damage or injury.

Environment

Guidelines for proper disposal of the equipment and its components according to local waste rules.

Description

Introduction

Introduces the manual and provides instructions for setting up and operating the equipment.

Unpacking

Instructions to check the packaging contents and contact the dealer if anything is missing.

Optional Accessories

Lists optional accessories available for the WMS 40 system, like rack mounting kits.

Front Panel Controls

Describes the function of the power switch, antenna, volume control, RF LED, and color code.

Rear Panel Controls

Explains the carrier frequency label, MIC OUT, LINE OUT, and other rear panel connections.

Setting Up

Placing the Receiver

Provides guidelines for positioning the receiver to avoid signal degradation and ensure good reception.

Mounting the Feet on the Receiver

Instructions on attaching the rubber feet to the receiver for freestanding placement.

Rack Mounting a Single Receiver

Steps for mounting a single SR 40 receiver into a 19" rack using the provided kit.

Rack Mounting Two Receivers Side by Side

Instructions for mounting two SR 40 receivers together in a rack.

Connecting the Receiver to a Mixer

Explains how to connect the receiver's audio outputs (MIC OUT, LINE OUT) to a mixer.

Connecting the Receiver to an Amplifier

Details how to connect the receiver's LINE OUT to an amplifier's input.

Connecting the Receiver to Power

Step-by-step guide for connecting the AC adapter and powering on the receiver.

Before the Soundcheck

Procedures to check for dead spots, adjust squelch, and ensure proper signal reception.

Cleaning

Instructions for cleaning the receiver surfaces using a soft, moistened cloth.

Troubleshooting

Specifications

AKG SR 40 Specifications

General

Modulation	FM
Signal-to-noise ratio	>60 dB
Squelch	Adjustable
Type	Wireless Microphone System
Audio outputs	XLR
Frequency Range	863 - 865 MHz
THD	0.8% (at 1 kHz)
Power Supply	12 V DC