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Lewitt LCT 240 PRO User Manual

Lewitt LCT 240 PRO
14 pages
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PROFESSIONAL CONDENSER
STUDIO MICROPHONE
// LCT 240 PRO
USER MANUAL
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Lewitt LCT 240 PRO Specifications

General IconGeneral
TypeCondenser
Polar PatternCardioid
Frequency Range20 Hz - 20 kHz
Max SPL142 dB SPL
Connector3-pin XLR
Supply Voltage48 V Phantom
Dimensions138 mm x 52 mm x 36 mm / 5.43 in x 2.05 in x 1.42 in

Summary

Introduction

Box Contents

Features and Applications

About Condenser Microphones

Condenser Capsule Principle

Explains the basic principle of a condenser capsule, including its diaphragm and metal plate structure forming a capacitor.

Phantom Power Explained

Polar Patterns

Reading Polar Pattern Diagrams

Provides guidance on interpreting polar pattern diagrams, including understanding angles and dB sensitivity scales.

Cardioid Polar Pattern

Describes the cardioid polar pattern, its sensitivity at 0 degrees, and its effectiveness in rejecting rear sound.

Key Condenser Microphone Specifications

Microphone Sensitivity

Defines microphone sensitivity in mV/Pa and dBV/Pa, explaining its impact on required gain for a certain output level.

Equivalent Noise Level (Self-Noise)

Explains equivalent noise level as the sound pressure level equal to the microphone's RMS voltage output without a sound source.

Frequency Response

Details frequency response, indicating sensitivity across the frequency spectrum and its influence on the microphone's sound.

Maximum SPL (Sound Pressure Level)

Defines Max SPL as the maximum sound pressure level a microphone can handle before signal distortion occurs.

Before You Start Recording

Setting Up the LCT 240 PRO

Recording Tips

Room Sound Considerations

Discusses the impact of different room acoustics on recordings and suggests finding suitable locations for recording.

Microphone Positioning Techniques

Emphasizes the importance of microphone positioning for recording quality and suggests experimenting with different placements.

Handling Sensitive Microphones

Advises on identifying and mitigating unwanted background noises when using sensitive microphones.

Understanding Proximity Effect

Explains the proximity effect, the increase in low frequencies when a microphone is placed close to the sound source.

Microphone Applications

Vocal Recording Applications

Provides tips for recording vocals, including using pop filters, defining vocal distance, and managing room sound.

Guitar Amplifier Recording

Offers guidance on miking guitar cabinets, suggesting experimentation with position and angle for desired sound.

Acoustic Guitar Recording

Suggests microphone placement for recording acoustic guitar, recommending positions relative to the neck/body and frets.

Drum Recording Techniques

Stage Use Recommendations

Technical Graphs

Microphone Specifications

Optional Accessories

DTP 40 Mts Mic Mount

Describes the rubber microphone mount, its grip, noise attenuation, and compatibility with standard threads.

LCT 40 Wx Windscreen

Details the windscreen's use for outdoor recording, wind shielding, and vocal recording moisture protection.

DTP 40 Lb Transport Bag

Recommends storing microphones in the transport bag to protect from dust and humidity when not in use.

LCT 40 SH Shock Mount

Explains the benefit of a shock mount for reducing structure-borne noise and allowing close mic placement.

LCT 50 PSx Magnetic Pop Filter

Highlights the magnetic pop filter's design integration and its function in preventing plosives and protecting the capsule.

Troubleshooting Common Issues

No Audio Output Troubleshooting

Guides on checking phantom power, signal chain, connected equipment, and cables when no sound is heard.

Muffled Sound Troubleshooting

Addresses muffled sound by checking microphone orientation and ensuring the wire mesh is not covered.

Distorted Signal Troubleshooting

Provides solutions for distorted signals, including gain adjustment, pop filter use, and shock mount application.

Safety Guidelines and Precautions

Regulatory Compliance Information

Product Warranty Information

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