ภาพรวมของผลิตภัณฑ์

Personal & Studio

CHA1

OVERVIEW

  • .Versatile headphone amplifier with great connectivity
  • .3 Switchable Stereo Inputs: XLR and 6.3mm Jack Combi, RCA plug and 3.5mm mini-jack
  • .Choice of Headphone Outputs: 6.3mm jack or 3.5mm mini-jack
  • .Specially selected electronic components for crystal-clear sound
  • .Smooth rotary control for accurate level adjustment
  • .Low EMI Universal Power adaptor: with 4 interchangeable plugs

DESCRIPTION

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 referencegrade 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 response of the CHA1 is very flat from 20Hz to 80KHz, and the full-band frequency response error value is not greater than -0.20dB in the test from low impedance to high impedance.

Especially using only 24V external power supply and classic OTL amplifier circuit 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 of adaptive Universal Input Range 90~264VACand comes with 4 kinds of AC plugs that can be interchangeable by user, including US, UK, AU and EU types.

SPECIFICATIONS

  CHA1
Circuit principle OTL / External power supply / Stereo amplifier
Frequency response 20Hz ~ 20KHz, ±0.2dB ( Limited by APx525's B.W. )
THD+N @ 10mW 0.0008%, 470 ~ 600Ω@XRL, 1KHz@20KHz B.W.
Dynamic range@ 113.5dB @220Ω load, XLR input
Input connector
( Corresponding to 3 selection buttons )
  I: A pair of NEUTRIK® Combi jack
 II: A pair of RCA
III: mini TRS phone jack
Output connector
( Cannot output at the same time )
6.3mm TRS phone jack
3.5mm mini TRS phone jack
Maxinum output power 300mW
Single end input inpedance 90KΩ
Balance input inpedance >14.7KΩ
mini TRS phone gain 22.4dB
RCA gain 11dB
XLR gain 2.6dB
Output loading impedance 15Ω ~ 600Ω
Power concumption 6W/0.25A
Power supply & consumption 24VDC / 10W
Ext. AC to DC adaptor 90 ~ 264VAC input / 24VDC output
Type of AC plugs includes UK / US / AU / EU
Dimension ( W x D x H ) 162 x 104 x 53 mm
Shipping dimension ( W x D x H ) 306 x 163 x 70 mm
Nett weight 0.73kg
Shipping weight @ per unit 1.10kg ( w/carton & adaptor )

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