Unika 4711064410198 User Manual Download Page 9

1. Equipment

EU DECLARATION OF 

CONFORMITY

Product name

Dual active direct box

Model  

PRO-248

EAN Code

4711064410198

2. Manufacturer

Manufacturer

UNiKA Electronic Co.,Ltd.

Address 

6F, No.168, Xinhu 2nd Roadn, Nei-Hu, Taipei, Taiwan

EMI:
EN 55032:2015

IEC 61000-4-3:2006+A1:2007+A2:2010

EN 61000-3-3:2014

IEC 61000-4-42012

EN 61000-3-3:2013

IEC 61000-4-5:2014+A1:2017

EMS:

IEC 61000-4-6:2013/CORE1:2015

EN 55035:2017

IEC 61000-4-8:2009

IEC 61000-4-2:2008

IEC 61000-4-11:2-4+A1:2017

7. Where applicable, the above equipment will be tested and revision of existent certificate by WH 

 

Technology Corp. (TAF Accreditatio Number:2954) for compliance With EMC requirements 

set forth in the EUROPEAN COUNCIL DIRECTIVE 2014/30/EU and the technical standards 

mentioned

 

above. The results of testing in this report apply only to the product/system, which 

was tested.

 

Other

 

similar equipment will not necessarily produce the same results due to 

production tolerance. 

8. The technical file is available from the manufacturer at the address above

Signed for and on behalf of:

UNiKA Electronic Co.,Ltd.

Place of issue: 

Taipei

Date of issue:

May 03

th

, 2021

Name:  Yung-Ho Hsu

Position: Marketing & Product director

Signature:

3. This declaration of conformity is issued under the sole responsibility of the manufacturer.

4. Object of the declaration, Product: Direct box for musical instrument and A/V device.

5. The object of the declaration described in point 4 is in conformity with the relevant 

Union harmonisation legislation 2014/30/EU    The Electromagnetic Compatibility Directive

6. References to the relevant harmonised standards used, or references to the specifications in 

relation to which conformity is declared:

Summary of Contents for 4711064410198

Page 1: ...PULSE TRANSFORMER SCHEMATIC INPUT PAD ATTENUATION POWER SUPPLY ELIMINATING GROUND LOOP NOISE CONNECTION GUIDE SPECIFICATIONS 6F No 168 Xin Hu 2nd Rd Nei Hu District Taipei City 11494 Taiwan R O C 886...

Page 2: ...PRO 248 uses 48V phantom power instead of the traditional 9V dry cell battery so users can use it on the mixer or external phantom power supply Power is supplied to PRO 248 the power supply circuit an...

Page 3: ...10E isolation transformer Use British OEP PT 4 1 1 audio pulse transformer in phantom power circuit 48V status indicator on the upper cover The input socket uses a pair of TRS jacks Use a pair of TRS...

Page 4: ...to turn on 48V phantom power supply for PRO 248 proper working after connecting to the mixer 48V phantom power indicator When CH 1 or CH 2 receive 48V phantom power the indicator will be shinning the...

Page 5: ...NSFORMER SCHEMATIC 1 5 10 6 Screen Secondary Cooper foil Core Secondary Primary Primary PULSE TRANSFORMER SCHEMATIC UNiKA PROTM EI30A10E OEP PT 4 3 layers of thermo setting adhesive polyester tape bet...

Page 6: ...alanced isolation transformer has solved the potential difference leakage problem When the system causes a ground loop due to poor wiring the noise can be eliminated through the GND LIFT button The GN...

Page 7: ...n 2 Hot pin 3 Cold pin The unbalanced connection pin 2 is hot pin 3 is shield paralleled with pin 1 Output from musical instrument to INPUT Output via THRU OUT to musical instrument amplifiers 1 2 3 1...

Page 8: ...ut GND LIFT switch Shared push button Input impedance 260K 0dB 50K 20dB Output impedance 50 Max input level before clipping 10dB Max Output level 10dB Frequency response 20Hz 20KHz 0 05 0 5dB S N rati...

Page 9: ...entioned above The results of testing in this report apply only to the product system which was tested Other similar equipment will not necessarily produce the same results due to production tolerance...

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