OKEH2502URIBTProfessional Hybrid Amplifier

Professional Hybrid Amplifier Technical Pro User Manual for: H2502UriBT & H3502UriBT with USB & SD Card Inputs & Bluetooth Compatibility Compatible with iPod™(Classic and Nano) ® Congratulations and thank you for your purchase of this Technical Pro professional hybrid Series amplifier. To get the most from your hybrid, it is recommended that you review all of the information provided in this instruction manual before operating this equipment. If you've spent any time at all in professional audio, you know the name Technical Pro and what it stands for — incredible performance & sound, and the ultimate in reliability under harsh conditions. And now, Technical Pro offers the same technology in a series of hybrid amplifier bringing more of what sets Technical Pro apart from all others. 1- Read these instructions thoroughly before using this item. 2- Keep these instructions for future reference. 3- Heed all warnings. 4- Follow all instructions. 5- WARNING: To prevent fire or electric shock, do not expose this equipment to rain or moisture. Do not store or operate this product near any liquids. 6- Clean only with a dry cloth. 7- Do not store or operate this product near any heat sources such as radiators, heat registers, stoves, or other apparatuses (including amplifiers) that produce heat. 8- Do not defeat the safety purpose of the polarized or grounding-type plug. A polarized plug has two blades with one wider than the other. A grounding plug has two blades and a round grounding prong. The wide blade or third prong is provided for your safety. If the provided plug does not fit your outlet, consult an electrician for the replacement of the obsolete outlet. 9- Protect the all wires connected to this unit from being walked on or pinched, particularly plugs and the point where they exit from the unit. When removing the cord from the power outlet, remove it by holding the plug not by pulling the cord. 10- Unplug the unit during lightning storms or when unused for long periods of time. 11- When wiring this unit and all other equipment used in connection to this unit make sure that all of your equipment is turned OFF. 12- Once installation and wiring is complete power on all your equipment with the volume and level controls turned DOWN. Once all the equipment is ON slowly raise the volume or level controls to their proper positions. 13- When grounding this unit, be sure to do so correctly, so as not to defeat the built-in grounding in this unit. 14- When you have finished using this unit, be sure that both tray doors are closed using the open / close button before powering off the unit. 15- Before placing, installing, rigging, or suspending any product, inspect all hardware, suspension, cabinets, transducers,brackets and associated equipment for damage. Any missing, corroded, deformed, or non-load rated component could significantly reduce the strength of the installation, placement or array. Any such condition severely reduces the safety of the installation and should be immediately corrected. Use only hardware which is rated for the loading conditions of the installation and any possible short-term, unexpected overloading. Never exceed the rating of the hardware or equipment. 16- Consult a licensed, Professional Engineer regarding physical equipment installation. Ensure that all local, state and national regulations regarding the safety and operation of equipment are understood and adhered to. 17- Refer all servicing to qualified service personnel. Servicing is required when the apparatus has been damaged in any way, such as power supply cord or plug is damaged, liquid has been spilled or objects have fallen into the apparatus, the apparatus has been exposed to rain or moisture, does not operate normally, or has been dropped. WARNING! CAUTION: TO REDUCE THE RISK OF ELECTRIC SHOCK, DO NOT REMOVE THE COVER OF THIS UNIT. THERE ARE NOUSER-SERVICEABLE PARTS INSIDE. REFER ALL SERVICING TO A QUALIFIED TECHNICIAN. The lightning flash with arrowhead symbol within an equilateral triangle is intended to alert the user to the presence of "dangerous" voltage within the product's enclosure that may be of sufficient magnitude to constitute a risk of electric shock to humans. Users should exhibit extra safety when this symbol appears in this instruction manual and follow all precautions as they are stated. The exclamation point within an equilateral triangle is intended to alert the user to the presence of important operating and maintenance (servicing) instructions in this manual. Introduction Hybrid Series Hybrid Series Front Panel 1.Power:Press this button to power the unit on and off. 2.MP3(1/8”) Input: Connect your MP3 player or computer here.Make sure to press the input selector button (5) until “MP3” appears on the display screen to play the signal from the MP3 player or computer. 3.Play / Pause / Record Button: When the input selected is USB/SD/Bluetooth, press this button to pause the signal from the USB flash drive,SD card,bluetooth or iPod™(Classic and Nano) connected to the USB input. Press this button again to play.The play/pause function will only work for the USB flash drive, SD card, bluetooth or iPod™(Classic and Nano). THERE IS NO RECORDING FUNCTION WHEN INPUT SELECTED IS USB/SD/BLUETOOTH. When the input selected is TUNER/MP3/DVD/CD/VCD and there is an USB flash drive or SD card (with blank space on it) inserted into their respective slot, pressing and holding this button will activate the recording function.Press this button and hold for several seconds and the word “REC” will display on the screen.The unit will create a new file in the connected USB flash drive or SD card and get ready to make a recording. At this point there is no actual recording yet. Press the button again and the unit will start recording onto the USB flash drive or SD Card and the elapsed time and “REC” will display on the screen. Press the button a third time to pause the recording and the word “REC” and the elapsed tim…

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Authorization Letter We, (the approval holder) Company name Foshan Sofei Electronics Addresss 5/F, A Block, Meiguang Industrial Park, Jichang Rd.,Nanhai District City Foshan, Guangdong, Country China declare that the following representative (agent): Name (person) Bovey.yang Company name NTEK Testing Technology Co., Ltd. Addresss 1/F, Building E, Fenda Science Park Sanwei Community, Xixiang Street, Baoan District City Shenzhen Country China to act on our behalf on all matters concerning the application and documents submitted to PHOENIX TEST-LAB for product certification below Product Description Professional Hybrid Amplifier Type or Model(s) H2502UriBT，H3502UriBT，H2502UriBT Tradename or Brand(s) N/A We also authorize BZT – TCP Certification GmbH, Ms.Wanida Patthanavoj (address: Hermann - Loens - Weg 6, 15859 Storkow b. Berlin Germany) to process the application. Attestation: City and Country: Date: Name: (this must be a person) Function: Signature: (or official company stamp) Foshan 2012/8/20 Chandler Jiang Salesman

FCC Confidentiality Request To the FCC and FCC TCB handling this application for certification Pursuant to 47 CFR Section 0.459(a) & (b), we, (the applicant / grantee) Company name Foshan Sofei Electronics Addresss 5/F, A Block, Meiguang Industrial Park, Jichang Rd.,Nanhai District City Foshan, Guangdong, Country China request non-disclosure and confidential treatment for our certification under: Grantee Code Product Number FCC ID: OKE H2502URIBT of the following materials submitted within this certification application: (please cross what is applicable, or add other documents) x Operational Description x Block Diagrams x Schematics Diagrams Bill of Materials Above materials contain secrets, proprietary and technical information, which would customarily be guarded from competitors under 47 CFR, section 0.457(d)(2). Disclosure or publication or any portion of this company confidential material to other parties could cause substantial competitive harm and provide unjustified benefits for competitors. We understand that pursuant to 47 CFR section 0.457(d)(1)(ii) disclosure of the applicant and all accompanying documentation will not be made before the date of the grant. Attestation: City and Country: Date: Name: (this must be a person) Function: Signature: (or official company stamp) Foshan 2012/8/20 Chandler Jiang Salesman

APPENDIX-PHOTOGRAPHS OF EUT CONSTRUCTIONAL DETAILS Photo 1 Photo 2 Photo 3 Photo 4 Photo 5 Photo 6

W*l 4.0*10 cm Professional Hybrid Amplifier Model: H2502UriBT FCC ID: OKEH2502URIBT This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) This device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation. NOTE: THE MANUFACTURER IS NOT RESPONSIBLE FOR ANY RADIO OR TV INTERFERENCE CAUSED BY UNAUTHORIZED MODIFICATIONS TO THIS EQUIPMENT. SUCH MODIFICATIONS COULD VOID THE USER’S AUTHORITY TO OPERATE THE EQUIPMENT.

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FCC RADIO TEST REPORT FCC ID: OKEH2502URIBT Of Product： Professional Hybrid Amplifier Trade Name： N/A Model Number： H2502URIBT Serial Model： H3502URIBT，H1502URIB Report No.： NTEK-2012DG0902038R Prepared for Foshan Sofei Electronics 5/F, A Block, Meiguang Industrial Park, Jichang Rd.,Nanhai District,Foshan, Guangdong,China Prepared by NTEK Testing Technology Co., Ltd. 1/F, Building E, Fenda Science Park, Sanwei Community, Xixiang Street Bao’an District, Shenzhen P.R. China Tel.: +86-0755-61156588 Fax.: +86-0755-61156599 Website:www.ntek.org.cn Page 2 of 55 Report No.: NTEK-2012DG0902038R TEST RESULT CERTIFICATION Applicant’s name ................. : Foshan Sofei Electronics Address .................................. : 5/F, A Block, Meiguang Industrial Park, Jichang Rd.,Nanhai District,Foshan, Guangdong,China Manufacture's Name ............ : Foshan Sofei Electronics Address .................................. : 5/F, A Block, Meiguang Industrial Park, Jichang Rd.,Nanhai District,Foshan, Guangdong,China Product description Product name ............................ : Professional Hybrid Amplifier Model and/or type reference .............................. : H2502URIBT Serial Model： H3502URIBT，H1502URIBT Ratings AC230V/115V 50Hz-60Hz Standards .............................. : FCC Part15.247 Test procedure ............................... : ANSI C63.4-2003 This device described above has been tested by NTEK, and the test results show that the equipment under test (EUT) is in compliance with the FCC requirements. And it is applicable only to the tested sample identified in the report. This report shall not be reproduced except in full, without the written approval of NTEK, this document may be altered or revised by NTEK, personal only, and shall be noted in the revision of the document. Date of Test ........................................... : Date (s) of performance of tests ............. : 26 Aug. 2012 ~02 Aug. 2012 Date of Issue .......................................... : 03 Aug. 2012 Test Result .............................................. : Pass Testing Engineer : (Apple Huang) Technical Manager : (Tom Zhang) Authorized Signatory : (Bovey Yang) Page 3 of 55 Report No.: NTEK-2012DG0902038R Table of Contents Page 1 . SUMMARY OF TEST RESULTS 6 1.1 TEST FACILITY 7 1.2 MEASUREMENT UNCERTAINTY 7 2 . GENERAL INFORMATION 8 2.1 GENERAL DESCRIPTION OF EUT 8 2.2 DESCRIPTION OF TEST MODES 10 2.3 TABLE OF PARAMETERS OF TEXT SOFTWARE SETTING 10 2.4 BLOCK DIGRAM SHOWING THE CONFIGURATION OF SYSTEM TESTED 11 2.5 DESCRIPTION OF SUPPORT UNITS(CONDUCTED MODE) 12 2.6 EQUIPMENTS LIST FOR ALL TEST ITEMS 13 3 . EMC EMISSION TEST 14 3.1 CONDUCTED EMISSION MEASUREMENT 14 3.1.1 POWER LINE CONDUCTED EMISSION LIMITS 14 3.1.2 TEST PROCEDURE 15 3.1.3 DEVIATION FROM TEST STANDARD 15 3.1.4 TEST SETUP 15 3.1.5 EUT OPERATING CONDITIONS 15 3.1.6 TEST RESULTS 16 3.2 RADIATED EMISSION MEASUREMENT 18 3.2.1 RADIATED EMISSION LIMITS 18 3.2.2 TEST PROCEDURE 19 3.2.3 DEVIATION FROM TEST STANDARD 19 3.2.4 TEST SETUP 20 3.2.5 EUT OPERATING CONDITIONS 21 3.2.6 TEST RESULTS (BELOW 30 MHZ) 22 3.2.7 TEST RESULTS (BETWEEN 30M – 1000 MHZ) 23 3.2.8 TEST RESULTS (ABOVE 1000 MHZ) 25 3.2.9 TEST RESULTS (RESTRICTED BANDS REQUIREMENTS) 31 4 . NUMBER OF HOPPING CHANNEL 35 4.1 APPLIED PROCEDURES / LIMIT 35 4.1.1 TEST PROCEDURE 35 4.1.2 DEVIATION FROM STANDARD 35 4.1.3 TEST SETUP 35 4.1.4 EUT OPERATION CONDITIONS 35 4.1.5 TEST RESULTS 36 5 . AVERAGE TIME OF OCCUPANCY 37 Page 4 of 55 Report No.: NTEK-2012DG0902038R Table of Contents Page 5.1 APPLIED PROCEDURES / LIMIT 37 5.1.1 TEST PROCEDURE 37 5.1.2 DEVIATION FROM STANDARD 37 5.1.3 TEST SETUP 37 5.1.4 EUT OPERATION CONDITIONS 37 5.1.5 TEST RESULTS 38 6 . HOPPING CHANNEL SEPARATION MEASUREMENT 44 6.1 APPLIED PROCEDURES / LIMIT 44 6.1.1 TEST PROCEDURE 44 6.1.2 DEVIATION FROM STANDARD 44 6.1.3 TEST SETUP 44 6.1.4 EUT OPERATION CONDITIONS 44 6.1.5 TEST RESULTS 45 7 . BANDWIDTH TEST 47 7.1 APPLIED PROCEDURES / LIMIT 47 7.1.1 TEST PROCEDURE 47 7.1.2 DEVIATION FROM STANDARD 47 7.1.3 TEST SETUP 47 7.1.4 EUT OPERATION CONDITIONS 47 7.1.5 TEST RESULTS 48 8 . PEAK OUTPUT POWER TEST 50 8.1 APPLIED PROCEDURES / LIMIT 50 8.1.1 TEST PROCEDURE 50 8.1.2 DEVIATION FROM STANDARD 50 8.1.3 TEST SETUP 50 8.1.4 EUT OPERATION CONDITIONS 50 8.1.5 TEST RESULTS 51 9 . EQUAL HOPPING FREQUENCY USE 53 9.1 APPLIED PROCEDURES / LIMIT 53 9.1.1 TEST RESULTS 53 10 . RECEIVER INPUT BANDWIDTH 53 10.1 APPLIED PROCEDURES / LIMIT 53 10.1.1 TEST RESULTS 53 11 . RECEIVER HOPPING CAPABILITY 53 11.1 APPLIED PROCEDURES / LIMIT 53 11.1.1 TEST RESULTS 53 12 . EUT TEST PHOTO 54 Page 5 of 55 Report No.: NTEK-2012DG0902038R Table of Contents Page APPENDIX-PHOTOGRAPHS OF EUT CONSTRUCTIONAL DETAILS Page 6 of 55 Report No.: NTEK-2012DG0902038R 1. SUMMARY OF TEST RESULTS Test procedures according to the technical standards: FCC Part15 (15.247) , Subpart C Standard Section Test Item Judgment Remark 15.207 Conducted Emission PASS 15.247(a)(1) Hopping Channel Separation PASS 15.247(b)(1) Peak Output Power PASS 15.247(c) Radiated Spurious Emission PASS 15.247(a)(iii) Number of Hopping Frequency PASS 15.247(a)(iii) Dwell Time PASS 15.247(a)(1) Bandwidth PASS 15.205 Band Edge Emission PASS 15.203 Antenna Requirement PASS NOTE: (1)” N/A” denotes test is not applicable in this Test Report Page 7 of 55 Report No.: NTEK-2012DG0902038R 1.1 TEST FACILITY NTEK Testing Technology Co., Ltd Add. : 1/F, Building E, Fenda Science Park, Sanwei Community, Xixiang Street, Bao’an District, Shenzhen P.R. China. FCC Registration No.:238937; IC Registration No.:9270A-1 CNAS Registration No.:L5516 1.2 MEASUREMENT UNCERTAINTY The reported uncertainty of measurement y ± U，where expended uncertainty U is based on a standard uncertainty multiplied by a coverage factor of k=2，providing a level of confidence of approximately 95 %。 No. Item Uncertainty 1 Conducted Emission Test ±1.38dB 2 RF power,conducted ±0.16dB 3 Spurious emissions,conducted ±0.21dB 4 All emissions,radiated(<1G)…

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Page 52 of 53 Report No.: NTEK-2012DG0902038R 9. EUT TEST PHOTO Radiated Measurement Photos Page 53 of 53 Report No.: NTEK-2012DG0902038R Conduction Measurement Photos