Overview������������������������������������������������������������������������������������������ 1
Features ������������������������������������������������������������������������������������������ 2
Making Connections ������������������������������������������������������������������������ 3
Setting Levels ���������������������������������������������������������������������������������� 3
Mute, Mono and DIM ����������������������������������������������������������������������� 4
Block Diagram ��������������������������������������������������������������������������������� 5
Speci cations ���������������������������������������������������������������������������������� 6
Warranty ������������������������������������������������������������������������� Back Cover
Thank you for purchasing the SAT-2™, a simple but robust audio attenuator and monitor controller� While the SAT-2 has
an intuitive feature set that is designed to be easy to use, please take a few minutes to review this short manual to get
the most out of this deceptively powerful device. If you nd you have any questions not answered here, please visit our
website at www.radialeng.com where we post frequently asked questions and product updates. If you still don’t nd the
answer to your question, feel free to send us an email at info@radialeng.com and we will do our best to respond promptly.
OVERVIEW
The SAT-2 gives you the ability to set your levels or attenuate hot signals wherever you might need to� It works as a monitor
controller between an audio interface and a set of powered speakers, or to attenuate the output of a recording console
before the signal is sent to a recording device� The SAT-2 can also be connected between line-level studio devices, taming
the outputs of a hot microphone preamp to avoid overloading the inputs of a recording interface without losing any tone
or character� With its compact and rugged design and useful feature set, the SAT-2 makes for a great addition to your
audio tool kit�
Radial Engineering Ltd.SAT-2™ User Guide
1
FEATURES
1. MONO: Sums the left and right outputs
to mono�
2. MUTE: Silences the outputs of the SAT-2�
3. MASTER LEVEL: Sets the overall output
level� Passes signal at unity gain (no
attenuation) when turned fully clockwise�
4. DIM ON: Used to reduce output levels
temporarily without affecting the setting on
the master level control�
5. DIM LEVEL: Sets the amount of signal
attenuation applied when Dim On is
engaged�
6. OUTPUTS: XLR outputs for a pair of
powered speakers or the inputs of a
recording interface�
7. INPUTS: TRS ¼” or XLR inputs are
available for the left and right channels�
8. NO SLIP PAD: Provides electrical &
mechanical isolation and prevents the unit
from sliding around�
1
2345
687
Radial Engineering Ltd.SAT-2™ User Guide
2
MAKING CONNECTIONS
Before plugging in any cables, ensure that your sound system is turned off and all volume levels are turned down� This
prevents any plug-in transients from damaging speakers or other sensitive components� The SAT-2 is passive, so it does
not require any power to operate.
Each input has a ¼” TRS and an XLR connector to accept balanced audio signals from a variety of different sources�
For best results, only use one of these connector types at a time on each channel� The XLR outputs are designed to be
connected to the line level inputs of a recording console, powered speaker, or audio interface�
SETTING LEVELS
The SAT-2 is a unity gain device, which means that when the master level control is turned all the way up (fully clockwise)
the SAT-2 outputs have the same signal level as its inputs. When rst setting levels, start with the volume turned all the
way down, and then slowly turn back up until you reach a comfortable listening level�
Radial Engineering Ltd.SAT-2™ User Guide
3
MONO, MUTE AND DIM
The MONO switch sums the left and right signals together at each of the outputs, allowing you to check for phase
compatibility when mixing� You can also use it to take a mono input and split it to two destinations, or use it for parallel
processing of a mono signal�
The MUTE switch cuts the signal to the XLR outputs, while the DIM switch allows you to temporarily reduce the output
level without changing the position of the master level control� The DIM LEVEL sets the amount of attenuation provided
when the DIM switch is depressed� Use the DIM to check your mixes at lower volume levels, or to talk to other people in
the control room without stopping audio playback�
Monitor Controller
Connect between your audio interface and powered speakers, utilizing the level control and
mono switch to check phase compatibility.
Radial Engineering Ltd.SAT-2™ User Guide
4
Parallel Processing
Take the output of a mic preamp into the SAT-2,
engage the mono switch, and connect one of the
SAT-2 outputs directly to your recording interface,
and the other to an effects device.
BLOCK DIAGRAM*
RIG HT IN PU T
Fem ale X LR a nd 1 /4 " Ja cks
LE VE L
DI M CON TRO L
DI M
S W ITC H
RIG HT O U TP U T
M UTE
LE FT IN PU T
Fem ale X LR a nd 1 /4 " Ja cks
LE VE L
M ONO
S UM
DI M
S W ITC H
LE FT OUT PU T
_
M UTE
_
DI M CON TRO L
* Subject to change without notice.
Radial Engineering Ltd.SAT-2™ User Guide
5
SPECIFICATIONS*
Audio Circuit Type: ����������������������������������������������������������������������������������������������������������������������Passive Audio Signal Path
Number of Channels:�����������������������������������������������������������������������������������������������������������������������������������������������������������2
Frequency Response: ��������������������������������������������������������������������������������������������������������������������������������������20Hz-20kHz
Maximum Input: ������������������������������������������������������������������������������������������������������������������������������������������������������ >+26dBu
Power: ��������������������������������������������������������������������������������������������������������������������������������������� Passive, no power required
Size (L x W x D): ����������������������������������������������������������������������������������������������������������������������������������������� 5”x3�312”x1�78”
Conditions:������������������������������������������������������������������������������������������������For use in dry conditions between 5°C and 40°C
RADIAL ENGINEERING LTD� (“Radial”) warrants this product to be free from defects in material and workmanship and will remedy
any such defects free of charge according to the terms of this warranty� Radial will repair or replace (at its option) any defective
component(s) of this product (excluding nish and wear and tear on components under normal use) for a period of three (3) years
from the original date of purchase� In the event that a particular product is no longer available, Radial reserves the right to replace
the product with a similar product of equal or greater value. In the unlikely event that a defect is uncovered, please call 604-942-1001
or email service@radialeng.com to obtain an RA number (Return Authorization number) before the 3 year warranty period expires.
The product must be returned prepaid in the original shipping container (or equivalent) to Radial or to an authorized Radial repair
center and you must assume the risk of loss or damage� A copy of the original invoice showing date of purchase and the dealer name
must accompany any request for work to be performed under this limited and transferable warranty. This warranty shall not apply if
the product has been damaged due to abuse, misuse, misapplication, accident or as a result of service or modication by any other
than an authorized Radial repair center�
THERE ARE NO EXPRESSED WARRANTIES OTHER THAN THOSE ON THE FACE HEREOF AND DESCRIBED ABOVE� NO
WARRANTIES WHETHER EXPRESSED OR IMPLIED, INCLUDING BUT NOT LIMITED TO, ANY IMPLIED WARRANTIES OF
MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE SHALL EXTEND BEYOND THE RESPECTIVE WARRANTY
PERIOD DESCRIBED ABOVE OF THREE YEARS� RADIAL SHALL NOT BE RESPONSIBLE OR LIABLE FOR ANY SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES OR LOSS ARISING FROM THE USE OF THIS PRODUCT� THIS WARRANTY GIVES
YOU SPECIFIC LEGAL RIGHTS, AND YOU MAY ALSO HAVE OTHER RIGHTS, WHICH MAY VARY DEPENDING ON WHERE
YOU LIVE AND WHERE THE PRODUCT WAS PURCHASED�
Radial Engineering Ltd.
1588 Kebet Way, Port Coquitlam BC V3C 5M5