USER GUIDE Stage Series Made in Taiwan SDI-2 Index Overview Features Audio Connection Various Instruments/Device Connection Unika Electronic Co., Ltd. Input PAD Attenuation 6F, No.168, Xin-Hu 2nd Rd. Nei-Hu District, Taipei City. 11494. Taiwan, R.O.C. Eliminating Hum and Buzz and the Ground Loop Specifications Measurement www.unikapro.com +886 2 27933017 +886 2 27928264 info@unikapro.
UNiKA SDI-2 User Guide OVERVIEW The UNiKA SDI-2 is an easy-to-use, dual-channel, passive direct box for musical instrument and audio system applications. In addition to a highquality audio transformer, the SDI-2 has some very useful built-in features. So please take a few minutes to go through this user guide to ensure you take full advantage of the facilities on offer and get the best possible result. info@unikapro.com If you need further information, please email us and we will do our very best to help.
UNiKA SDI-2 ① ② ⑥ ③ ⑦ ④ ⑧ User Guide ⑤ ⑨ ① Ch-1 ¼“ TS LINK socket: a parallel-wired direct feed from the input. It can be linked to instrument amplifier. ② Ch-1 High-impedance direct input: connect to output of electronic musical instrument or audio device using XLR or TRS, TS jack plugs. ③ Input PAD: 0dB, -20dB & -40dB selectable 3-step attenuator reduces the input sensitivity to prevent overload.
UNiKA SDI-2 User Guide AUDIO CONNECTION Instrument Direct input & Parallel Link connection As with all audio gear, always ensure audio system levels are turned down or equipment turned off before making connections. This will avoid plugin or turn-on transients from damaging more sensitive components such as tweeters. There are 2 channels on the SDI-2, each featuring an XLR- ¼“TRS combo jack INPUT, a TS ¼“ parallel LINK output and a balanced XLR OUTPUT.
UNiKA SDI-2 Tip-Signal (+) User Guide Tip-Signal Hot (+) Ring-Signal Cold(-) Sleeve-Ground Sleeve-Ground Fig-3: ¼"TS Unbalanced connection Fig-4: ¼"TRS Balanced connection VARIOUS INSTRUMENTS/DEVICE CONNECTION Fig-5: 2 instruments, Guitar to instrument amps & console Fig-6: Stereo keyboard to instrument amps & console connection Fig-7: Audio device / player / computer to active speaker/PA system 4
UNiKA SDI-2 User Guide INPUT PAD ATTENUATION The most common use of the direct input is with guitar pick-ups, keyboards or audio devices like CD players, computers etc. The optimal setting for this is most likely with the pad switch set to 0dB, although with some high-output pick-ups the performance of the direct input may be improved if the pad switch is set to -20dB to prevent possible clipping of the input signal.
UNiKA SDI-2 SPECIFICATIONS User Guide (Specifications are subject to change without notice.) Circuit design Input connectors 2 Unbalanced combo jack ( Pin-2 hot, Pin3&1 ground ) Link connectors 2 Unbalanced phone jack Input pad switch 0dB / -20dB / -40dB Input impedance 1MΩ / 47KΩ / 47KΩ Max. input level before clipping +26dBv Output device 2 XLR w/balance transformer isolated Output impedance 600Ω nominal, Transformer balance Output level +26dBv Frequency resonponse 20Hz to 20KHz +0.
UNiKA SDI-2 User Guide MEASUREMENT 7
UNiKA SDI-2 8 User Guide
UNiKA SDI-2 User Guide MEASUREMENT 9
UNiKA SDI-2 10 User Guide
