UT Twin48
Twin Mode Tube-Driven Large
Diaphragm Condenser Microphone
3
Owner’s Manual
Version 1.0 as of 01/14/2025
Additional Support
Visit www.unitedstudiotech.com for additional
support.
THANK YOU!
Thank you for purchasing the United Studio Technologies UT Twin48. We realize how many mi-
crophones are out there, and we are honored that you have given us a chance. We have done
all that we can to exceed your expectations of quality in terms of craftsmanship, feel, appear-
ance, and most importantly, sound. This tube microphone should perform reliably under most
any conditions, and last for more than a lifetime. We don’t make our products to just be good
for the price, but to simply be the best we can make them. We have scrutinized and labored
over not just the major parts like the transformer, capsule, and selected vacuum tube; but in
every component from end to end, as well as the circuit design and mechanicals. We used the
highest quality gold contact switches and connectors we could obtain, the best cable brand
we could nd, and used some of the highest quality audiophile grade (PRP) resistors available,
made specically for United, as well as custom made JB lm capacitors and other polystyrene
and tantalum capacitors made specically for United. With proper care, our products should
last a lifetime of use and beyond.
CHAD KELLY
United Studio Technologies, LLC.
Baton Rouge, Louisiana USA
PRODUCT SERVICE
WARRANTY SERVICE
United warranties this product to
be free from defect in materials and
workmanship for one year from date
of purchase, for the original purchaser
to whom this equipment is registered.
This warranty is non-transferrable.
This warranty is void in the event of
damage incurred from unauthorized
service to this unit, or from electrical
or mechanical modication to this
unit. This warranty does not cover
damage resulting from abuse,
accidental damage, misuse, improper
electrical conditions such as mis-
wiring, incorrect voltage or frequency,
unstable power, disconnection from
earth ground (for products requiring a
3 pin, grounded power cable), or from
exposure to hostile environmental
conditions such as moisture, humidity,
smoke, re, sand and other debris,
and extreme temperatures.
United will, at it’s sole discretion,
repair or replace this product in a
timely manner. This limited warranty
extends only to products determined
to be defective and does not cover
incidental costs such as equipment
rental, loss of revenue, etc. Please visit
us at www.unitedstudiotech.com for
more information on your warranty, or
to request warranty service.
This warranty applies to products
sold in the United States of America.
For warranty information in any
other country, please refer to your
local distributor for United Studio
Technologies. This warranty provides
specic legal rights, which may vary
from state to state. Depending on the
state in which you live, you may have
rights in addition to those covered in
this statement. Please refer to your
state laws or see your local retailer for
more information.
If you have a defective unit that is
outside of our warranty period or
conditions; we are still here for you
and can get your unit working again
for a modest service fee. Please visit
us at www.unitedstudiotech.com to
contact us about setting up a repair
or for more information.
With the proper care, your United
gear should last a lifetime and provide
a lifetime of enjoyment. We believe
the best advertisement we can have
is a properly working unit being put
to great use. Let’s work together to
make it happen.
REGISTER YOUR PRODUCT
Before we begin, please take the time to visit
www.unitedstudiotech.com to register your product. To ensure
you receive proper and uninterrupted warranty support for your
product, please register your unit within 14 days from purchase.
UPDATES TO THIS MANUAL
Occasionally, we may have updates to this manual.
All current manuals can be downloaded at
www.unitedstudiotech.com. For your convenience, every page of
this manual displays the version number at the bottom of the page.
SAFETY
Warning: To reduce the risk of electric shock, do not open the
device as there are no user-servicable parts inside. Refer servicing
to qualied personnel!
1. Read and keep these instructions; heed all warnings, and follow
all instructions.
2. Do not expose this device to rain and moisture.
3. Clean only with a dry cloth.
4. Servicing is required when the device has been damaged in any
way.
5. Always connect the output with a standard 3 pin XLR (male XLR to
female XLR) cable that is in good working order. Always connect
the microphone with the supplied 7 pin XLR cable only. No other 7
pin cable is guaranteed to be compatible with our design.
6. Always fully connect the microphone to the power supply before
powering on the device..
7. Do not engage +48v phantom power on your microphone
preamp. It is unnecessary.
8. Ensure the voltage selector is set appropriate for your territory, and
connect with the supplied IEC power cable.
9. Do not connect this microphone power supply to an ungrounded
AC power source (2 prong AC outlet or power cable). Earth
grounding is a requirement.
10. This microphone ships with a silica gel packet. Do not discard it;
this ensures that moisture/humidity does not accumulate on the
mic capsule diaphragm and that no part of the device begins to
oxidize. If the silica package becomes lost or discolored, replace it
with a new, good quality silica gel packet.
NON-WARRANTY SERVICE
