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Placement and Techniques 

Below are general tips for microphone placement; the recording environment plays a significant role in the success of any 

technique. We suggest experimenting extensively. 

 

 

 

Lead/Solo Vocals 

Distance from source: 4 to 12 inches. Pattern: Cardioid, use pop screen or foam windscreen. 

Dual Vocals 

Distance from source: 4 to 12 inches. Pattern: Figure-8. Rotate microphone in shock mount so that the front and 

back are facing to the left and right of microphone stand. One vocalist should sing into back and other into front. 

Always use a pop screen for each vocalist. 

Choirs 

Two mics in stereo and one spot mic for each soprano, alto, tenor and bass sections, or one set of spaced mics in 

stereo. 

Backing Vocals 

Individual micing: Distance from source should be 4 to 12 inches. Pattern: cardioid, use pop screen. Group micing: 

use cardioid or omni and place vocalists in semi-circle in front of microphone. 

Violin & Viola 

Position the microphone to the “f” holes from a height of 4 to 24 inches depending on the musician’s stance. Use 

cardioid or omni polar pattern. 

Cello, Upright Bass 

Position microphone about 10 to 18 inches from and facing one of the “f” holes. Use cardioid or omni polar 

pattern. 

Acoustic Guitar 

Single micing: Place mic 4 to 12 inches from the guitar between the sound hole and where the neck meets the 

body. Use cardioid polar pattern. 

Stereo micing: Place one mic 4 to 12 inches between the end of the body and sound hole aiming at the sound 

hole with the second mic 1 to 3 feet from the bridge. Use cardioid polar pattern. 

Flute 

Single micing: Place mic to one side of flutist and align mic with flutist’s mouth. Use cardioid or omni polar pattern. 

Stereo micing: Place mic to one side of flutist and align mic with flutist’s mouth. Place a second mic aiming at the 

side of the instrument. Use cardioid or omni polar pattern. 

Clarinet 

Place one microphone 4 to 10 inches from lowest key and slightly to the side to reduce key noise. Use cardioid 

polar pattern. 

Saxophones 

Place the microphone 10 to 30 inches away aiming at the middle of the instrument. Use cardioid polar pattern. 

Trumpet 

Place mic 8 to 15 inches in front of the instrument. Rotate microphone slightly off axis. Use cardioid polar pattern. 

Grand Piano 

Technique 1: Place an XY, MS, or ORTF pair at the middle of the strings from a height of 3 to 8 feet. 

Technique 2:  Place two mics 6 to 18 inches above the strings. One mic should be placed above treble strings and 

another above the bass strings. 

Upright Piano 

Open lid and place two mics 4 to 18 inches above the strings. One mic should be placed above treble strings and 

another above the bass strings. For increased or decreased hammer character place mics closer or further away. 

Electric Guitar or Bass 

Position mic 1 to 8 inches from center of speaker cone. Rotate mic slightly off-axis. Use cardioid polar pattern. 

Drum Overheads 

Place two mics in AB or XY configuration 1.5 to 6 feet above drummers head. Use cardioid or omni polar patterns. 

Tom Toms 

In cardioid polar pattern, use one mic for each tom or two toms. Align mic 1 to 3 inches away from the top rim and 

angle mic slightly toward drum head. 

Floor Tom 

In cardioid polar pattern, place mic 1 to 3 inches away from the top rim and angle mic slightly toward drum head. 

Bass Drum 

In cardioid polar pattern, place mic 12 to 36 inches from front of bass drum aiming directly at it or the cut-out hole 

if it has one. Remove front head if you feel necessary.  

Snare Drum 

In cardioid polar pattern, place mic 1 to 3 inches away from the top rim and angle mic slightly toward drum head. 

Use cardioid polar pattern.  

Summary of Contents for OCEANUS LT-381

Page 1: ...LAUTEN AUDIO 1 877 721 7018 LautenAudio com OCEANUS LT 381 Dual Tube FET Hybrid Extra Large Vocal Condenser OPERATING MANUAL ...

Page 2: ...0 to 120V set the voltage selector to 115V For 220 to 240V set the voltage selector to 230V NEVER SUPPLY POWER TO THE MICROPHONE OR POWER SUPPLY WITH THE COVER OFF SERIOUS INJURY CAN OCCUR WARNING Only authorized Lauten Audio technicians should perform disassembly and maintenance on any part of this microphone Disassembling and modifying any part of this microphone may void its warranty NEVER DISA...

Page 3: ...r microphone was designed and built with pride by Lauten Audio We are dedicated to providing recordists throughout the world with authentic high quality great sounding microphones Please enjoy your new microphone and know it was created with thoughtful engineering and a great deal of pride Sincerely Brian Loudenslager Founder ...

Page 4: ...of Contents Safety Contents Introduction Quick Start Guide Sequence of Operation Description Power Requirements Connections Recommended Uses Placement and Techniques Care and Cleaning Technical Specifications ...

Page 5: ...he LT 381 circuit topology is unique Utilizing a pentode tube wired as a triode with a carefully selected operation point as the input stage and a transformerless output stage it will exhibit increased clarity and transient response of the signal and reduced noise RFI and signal loss Adding a triode vacuum tube in place of a transformer eliminates the harshness often associated with transformless ...

Page 6: ...itch on the power supply is in the off position and then connect the power cord from the power supply to a power outlet 6 Place the power supply in a safe location where it will not be disturbed during the recording process 7 Connect the male end of the 7 Pin tube mic cable to the MIC IN of the power supply 8 Connect the female end of the 7 Pin tube mic cable to the bottom of the LT 381 microphone...

Page 7: ...ter is very detailed and revealing more so than other microphones on the market This microphone allows you to select 9 different polar patterns The 31 25mm diaphragms are made of an ultra thin plastic material with a layer of gold on one side The body has a unique construction to efficiently dissipate heat generated by the vacuum tubes and to help prevent RF interference allowing you to successful...

Page 8: ...e LT 381 power supply Failure to select the proper voltage is dangerous and will damage the microphone Voltage Selector Check to see if the proper voltage is selected on the back of the power supply If not using a Philips head screw driver carefully remove the plastic safety cover over the voltage switch and select your correct voltage Reattach the safety cover when complete Do not connect this mi...

Page 9: ...amplifier Connect the female end of the supplied 7 Pin XLR cable to the bottom of the microphone and the male end of the 7 Pin XLR cable to the MIC IN on the power supply Connect the female end of a 3 Pin XLR cable to the OUT on the power supply and the male end to your recording interface or preamplifier Male Outpu Female 1 2 3 2 1 3 To power supply OUT To recording interface 1 2 3 4 5 6 7 1 2 3 ...

Page 10: ...sed to mic various other sources including but not limited to those listed below We recommend the LT 381 for the following recording applications Sound Source Lead Solo Vocals Backing Vocals Choirs Speech Voice over Acoustic Guitar Room mic Overheads Piano Grand Upright Bass Drum Toms Snare Drum Electric Guitar Electric Bass Violin Cello Organ Trumpet Trombone French Horn Tuba Saxophone Flute Clar...

Page 11: ...one side of flutist and align mic with flutist s mouth Place a second mic aiming at the side of the instrument Use cardioid or omni polar pattern Clarinet Place one microphone 4 to 10 inches from lowest key and slightly to the side to reduce key noise Use cardioid polar pattern Saxophones Place the microphone 10 to 30 inches away aiming at the middle of the instrument Use cardioid polar pattern Tr...

Page 12: ...s Variable 9 step Omnidirectional to Cardioid to Figure 8 Circuit Vacuum tube pentode input and transformless triode vacuum tube output Frequency Range 20Hz 20KHz Dynamic Range 100dB minimum Impedance 200 ohms Max SPL 0 5 THD 1000Hz 120dB Self noise level 20dB A Sensitivity 16mV Pa OR 36 2dB 0dB 1V Pa 1000Hz Connector 7 Pin XLR 3 Pin standard XLR Power Requirement Custom power supply THERE ARE NO ...

Page 13: ...Frequency Response and Polar Pattern Plots Cardioid Omnidirectional Figure 8 ...

Page 14: ...Lauten Audio 1817 Houret Ct Milpitas CA 95035 Phone 877 721 7018 Webpage www lautenaudio com Email crm lautenaudio com 2004 2019 LAUTEN AUDIO ALL RIGHTS RESERVED ...

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