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Stage Series
Made in Taiwan
Index
Overview
Features
Audio Connection
Various Instruments/Device
Connection
Input PAD Attenuation
Eliminating Hum and Buzz and the
Ground Loop
Specifications
Measurement
USER GUIDE
SDI-1
Unika Electronic Co., Ltd.
w w w . u n i k a p r o . c o m
6F, No.168, Xin-Hu 2nd Rd.
Nei-Hu District, Taipei City. 11494.
Taiwan, R.O.C.
+886 2 27933017
+886 2 27928264
info@unikapro.com
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Summary of Contents for Unika SDI-1
- Page 1 Stage Series Made in Taiwan Index Overview Features Audio Connection Unika Electronic Co., Ltd. Various Instruments/Device Connection w w w . u n i k a p r o . c o m Input PAD Attenuation 6F, No.168, Xin-Hu 2nd Rd.
- Page 2 UNiKA SDI-1 User Guide OVERVIEW The UNiKA SDI-1 is an easy-to-use, single-channel, passive direct box for musical instrument and audio system applications. In addition to a high- quality audio transformer, the SDI-1 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.
- Page 3 UNiKA SDI-1 User Guide ① ② ③ ④ ⑤ ① ¼“ TS LINK socket: a parallel-wired direct feed from the input. It can be linked to instrument amplifier. ② High-impedance direct input with Combo jack: connect to output of electronic musical instrument or audio device using XLR or TRS, TS jack plugs.
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Page 4: Audio Connection
8 meters (25 feet) in length is good practice while balanced cables can easily extend to 100 meters (300 feet). The balanced output of the SDI-1 is mic level, meaning that it should be connected to the mic input of a mixing console or mic preamp. - Page 5 UNiKA SDI-1 User Guide Tip-Signal (+) 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: Instruments, Guitar to instrument amps & console Fig-6: Stereo keyboard to instrument amps & console...
- Page 6 -40dB). ELIMINATING HUM AND BUZZ AND THE GROUND LOOP The SDI-1 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.
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Page 7: Specifications
UNiKA SDI-1 User Guide SPECIFICATIONS ( Specifications are subject to change without notice. ) Circuit design Passive, transformer isolated Input connectors Unbalanced combo jack ( Pin-2 hot, Pin3&1 ground ) Link connectors Unbalanced phone jack Input pad switch 0dB / -20dB / -40dB Input impedance 1MΩ / 47KΩ / 47KΩ... - Page 8 UNiKA SDI-1 User Guide MEASUREMENT...
- Page 9 UNiKA SDI-1 User Guide...
- Page 10 UNiKA SDI-1 User Guide MEASUREMENT...
- Page 11 UNiKA SDI-1 User Guide...
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