Quick Start Guide/Sequence of Operation
To insure proper function of your microphone please set up the microphone using the following
sequence.
1. Securely attach the microphone shock mount to a high quality microphone stand and
tighten the wing nut at the shock mount elbow. The LT-381 is heavier than many
microphones on the market and we highly recommend using a heavy duty stand.
2. Carefully thread the LT-381 into the shock mount. To fully fasten the microphone to the
shock mount, the bottom nut of the shock mount requires approximately 20 full turns.
Tip: Rotating the microphone in the opposite direction of the bottom nut will assist with
threading it into the shock mount.
3. Make sure the phantom power and gain on your recording interface/microphone preamp
is turned off.
4. Make sure you select the proper voltage on the back of the power supply for your
country (i.e. 115V for U.S. and Japan, 230V for Europe).
5. Make sure the on/off switch 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.
9. Securely connect the female end of a standard 3-pin XLR microphone cable to the
“OUT” on the power supply and the male end to your recording interface/microphone
preamp.
10. Choose your desired polar pattern selection on the front of LT-381 power supply.
11. Turn on the LT-381 power supply (a red light will illuminate). Allow the microphone to
warm up for 5 to 10 minutes.
12. If you are using the microphone for vocals or voice, please use a high quality pop-filter.
Any foreign materials getting onto the microphone capsule may damage it.
13. Gradually increase the input gain on your recording interface or preamp to test and
achieve your desired microphone input levels.
14. Congratulations, you are ready to begin using your LT-381 microphone.
