Unika ISO-2 User manual

ISO-2
Unika
Brand
Unika
Model
ISO-2
Category
Musical Equipment
Type
User manual

This manual is also suitable for

Unika ISO-2 is a passive audio isolator designed to eliminate hum and buzz caused by ground loops in audio systems. It features two balanced XLR/TRS combo inputs and two balanced XLR outputs, supporting both unbalanced and balanced signals. The ISO-2 automatically converts the signal type depending on the connected cable. With individual ground lift switches for each output, you can further reduce ground loop noise. Its compact and durable design makes it suitable for various applications, from home studios to live sound setups.

Unika ISO-2 is a passive audio isolator designed to eliminate hum and buzz caused by ground loops in audio systems. It features two balanced XLR/TRS combo inputs and two balanced XLR outputs, supporting both unbalanced and balanced signals. The ISO-2 automatically converts the signal type depending on the connected cable. With individual ground lift switches for each output, you can further reduce ground loop noise. Its compact and durable design makes it suitable for various applications, from home studios to live sound setups.

ISO-2
USER GUIDE
Index
Overview
Features
Audio Connection
Various System Connection
Eliminating Hum and Buzz and the
Ground Loop
Specications
Measurement
6F, No.168, Xin-Hu 2nd Rd.
Nei-Hu District, Taipei City. 11494.
Taiwan, R
.
O.C.
+886 2 27933017
+886 2 27928264
[email protected]
Unika Electronic Co., Ltd.
www.unikapro.com
Stage Series
Made in Taiwan
UNiKA ISO-2
User Guide
1
OVERVIEW
FEATURES
The ISO-2 is a passive audio isolator designed to be inserted into the signal
chain to block hum and buzz caused by ground loops. The ISO-2 accepts
unbalanced or balanced signals and is equally suitable for consumer
electronics and professional line-level devices.
The ISO-2 can be operated as a dual input and outputs, and since the circuit
is passive, no power is required. Whether an unbalanced or balanced signal
is connected, the ISO-2 will automatically convert the signal depending on
the type of cable and connector plugged in.
　　
[email protected]
　　
If you still need further clarification, please send email to us and we will
　　
do our very best to reply you in short order.
The ISO-2 is a simple passive device, designed to electronically-isolate
connected line-level audio equipment without degrading the audio quality.
On the ISO-2 there are 2 inputs and 2 outputs which block DC voltage and
prevent buzz and hum from ground loops. Both outputs feature individual
ground lift switches to help further reduce ground loop noise.
2
UNiKA ISO-2
User Guide
①
Ch-1 input: transformer balanced XLR-1/4” TRS Combo Connector.
②
Ground Lift switch for Ch-1: disconnects pin-1 on output-1 XLR connector.
③
Phase reverse switch: Swaps pin-2 and pin-3 on Ch-2 when REV is selected.
④
Ground Lift switch for Ch-2: disconnects pin-1 on output-2 XLR connector.
⑤
Ch-2 input: transformer balanced XLR-1/4” TRS Combo Connector.
⑥
Output-2: transformer balanced XLR output.
⑦
Output-1: transformer balanced XLR output.
① ② ③ ④ ⑤
⑥ ⑦
UNiKA ISO-2
User Guide
3
AUDIO CONNECTION
Before connection:
As with all audio gear, always ensure audio system levels are turned down
or equipment turned off before making connections. This will avoid plug-
in or turn-on transients from damaging more sensitive components such as
tweeters.
Connect ISO-2 to system:
The ISO-2 has two combination XLR/TRS input connectors, wired to the
AES standard pin-1 ground, pin-2 hot (+), pin-3 cold (-).
Balanced or unbalanced output signal can be connected to the input of ISO-
2; the isolated outputs will always be balanced signals.
The balanced output of the ISO-2 is line level, meaning that it should be
connected to the line input of a mixing console.
Suggestions about distance cable running:
Unbalanced cables are much more susceptible to noise than their balanced
counterparts, keeping unbalanced cables under 8 meters (25’) in length is
good practice while balanced cables can easily extend to 100 meters (300’).
4
UNiKA ISO-2
User Guide
For Unbalanced connection, pin-3 should be connected to Ground with pin-1.
XLR-TRS Combo input
1-Ground2-Signal Hot +
3-Signal Cold -
Fig-2: XLR-¼"TRS Combo
　　　
socket for direct input
Fig-1: XLR Plugs Balanced
　　　
connection:
　　
1-Ground
　　
2-Signal Hot (+)
　　
3-Signal Cold (-)
Fig-3: ¼"TS Unbalanced connection Fig-4: ¼"TRS Balanced connection
Tip-Signal (+)
Sleeve-Ground
Tip-Signal Hot (+)
Ring-Signal Cold(-)
Sleeve-Ground
1
Female Male
2 1
3 3
2
UNiKA ISO-2
User Guide
5
ELIMINATING HUM AND BUZZ AND THE GROUND LOOP
The ISO-2 is equipped with output isolation transformers to eliminate hum and
buzz caused by stray DC voltage and ground loops.
Computers, CD players and other consumer equipment can be noisy
-
this
is particularly true when incorporating audio with a projector
-
so isolation
transformers can be very useful when combating system noise.
The independent Ground Lift switches on the outputs takes this one step further
by lifting pin-1 on the XLRs. Computers are often the source for noise problems
in audio systems, so greater care is certainly needed to keep things quiet.
VARIOUS SYSTEM CONNECTION
Fig-6: Mixing console to devices with different power source
Fig-5: Mobile device to mixing console
Fig-7: Computer playback to powered speakers
Mobile device FOH System Mixer
FOH System Mixer
Outside Broadcast Truck
Computer playback
Powered speakers
Digital Audio Work Station
6
UNiKA ISO-2
User Guide
SPECIFICATIONS
Circuit design
Input connectors 2 Balance combo jack
(
Pin-2 hot,
Pin-3 cold, Pin-1 ground
)
Input DC impedance 0.82KΩ
Max. input level before clipping +26dBv
Output device 2 XLR w/balance transformer isolated
Output DC impedance 1.08KΩ nominal, Transformer balance
Output level +26dBv
Frequency response 20Hz to 20KHz +0.2 / 0 dB
Dynamic range >130dB
S/N ratio~ un-weight 20Hz to
20KHz
-136dB
T.H.D~ 1KHz, 0dBV output < 0.001%
Ground
/
Lift switch Lift pin-1 on XLR outputs, separate
Reverse switch Channel 2 input
Construction 1.6
/
1.2mm steel cabinet & chassis
Surface finished Durable powder coating
Dimension (WxDxH) 124
x
78
x
46
mm
Weight 0.5Kg
Shipping weight 0.6Kg
Packing per carton 20pcs / 13Kgs
Shipping dimension per carton 350 x 310 x 207mm
(
Specications are subject to change without notice.
)
UNiKA ISO-2
User Guide
7
MEASUREMENT
8
UNiKA ISO-2
User Guide
UNiKA ISO-2
User Guide
9
MEASUREMENT
10
UNiKA ISO-2
User Guide
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Unika ISO-2 User manual

ISO-2
Unika
Brand
Unika
Model
ISO-2
Category
Musical Equipment
Type
User manual
This manual is also suitable for

Unika ISO-2 is a passive audio isolator designed to eliminate hum and buzz caused by ground loops in audio systems. It features two balanced XLR/TRS combo inputs and two balanced XLR outputs, supporting both unbalanced and balanced signals. The ISO-2 automatically converts the signal type depending on the connected cable. With individual ground lift switches for each output, you can further reduce ground loop noise. Its compact and durable design makes it suitable for various applications, from home studios to live sound setups.

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