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UNiKA User Manual
PRODUCT OVERVIEW
The CHA1 is a classic-grade headphone amplifier carefully developed by UNiKA
and manufactured in the UNiKA factory in Taiwan. The application object of CHA1
is headphone enthusiasts, audiophiles and multi-media and streaming usersorlive
concert soundman.
CHA1 is suitable for general consumer headphone and earbud, as well as reference-
grade and low-sensitivity high-end headphones. Impedances from 15ohm to 600ohm
are easily driven and produce a very smooth and very dynamic sound. Moreover,
it performs very high S/N ratio and cannot be perceived power supply and circuit
characteristic noise.
From the test chart at the end of this manual, we can see that the frequency
responseoftheCHA1 isveryatfrom20Hzto80KHz,andthefull-bandfrequency
response error value is not greater than -0.15dB in the test from low impedance
to high impedance. From the test chart at the end of this manual, we can see that
thefrequency responseoftheCHAisveryflatfrom20Hzto80KHz,andthe full-
bandfrequencyresponseerrorvalueisnotgreaterthan±0.2dBinthetestfromlow
impedance to high impedance.
Especiallyusingonly24Vexternalpowersupply and classic OTLamplifiercircuit
design, its performance is amazing.
The components selected by CHA1 are all top-level models, and a double-connected
stereo potentiometer with very low L/R output different is specially customized to
ensure listening consistency.
The input jacks are a pair of NEUTRIK® Combijack. It can be available to connect
XLR and TRS balanced plug or TS unbalanced plug from recording devices or Hi-Fi
equipment.
The other two sets of input options are stereo RCA and mini TRS. It is convenient
for users to choose RCA output signal sources such as DAC, streaming pre-amp
or computer sound card. Or directly connect to CHA1 through the output of mobile
phones and laptops. The headphone output terminal has standard TRS and mini TRS
sockets to compatible with all types of headphones and earbuds on the market.
At the same time, UNiKA is very considerately equipped with an external power supply
ofadaptiveUniversalInputRange90~264VACandcomeswith4kindsofACplugsthat
can be interchangeable by user, including US, UK, AU and EU types.
