2AGAH-SOCIAL1Bluetooth wireless amplifier

7KDQN\RXIRUSXUFKDVLQJ\RXU$VKGRZQ(QJLQHHULQJ$PSOL¿HUDQGZHOFRPHWRWKHIDPLO\ :HUHDOO\WKLQN\RX¶YHPDGHWKHULJKWFKRLFHDQGNQRZWKDWWKLVDPSOL¿HUZLOOJLYH\RX\HDUV RIJUHDWWRQHDQGVHUYLFH,WLVDPDFKLQHWKRXJKDQGQHHGVWREHORRNHGDIWHUSOHDVHUHDG WKURXJKWKLVXVHUPDQXDOZKLFKZLOOKHOS\RXJHWWKHPRVWRXWRI\RXUQHZ$PSDQGNHHSLW UXQQLQJDVORQJDVVRPHRIRXUKDSSLHVWDQGYHU\IDPRXVFXVWRPHUV 3OHDVHUHJLVWHUWKLVSURGXFWRQOLQHVRZHFDQPDNHVXUHZHJLYH\RX\HDUVRIFXVWRPHU VXSSRUWWKURXJKRXUIULHQGO\LQKRXVHVHUYLFHFHQWUH +HUHLVZKHUH\RXQHHGWRYLVLWWRUHJLVWHU\RXUSURGXFW http://www.ashdownmusic.com/register 7+$1.<28 5(*,67(521/,1( B-SOCIAL - USER MANUAL 1.2.3.4.5.6. FRONT PANEL: B-SOCIAL - INTRO Straight out of the box the B-Social delivers quality Ashdown tone via a power- ful 75W stereo amplifier and two custom dual concentric 5” drivers, specifically designed to deliver punchy low-end in the most compact enclosure. Unlocking fur- ther tonal possibilities, the App-Tek socket allows players to access the ever-grow- ing range of amp sim and effects apps available on Smartphones and devices, including Ashdown’s very own ABM Pre App on AmpKit by Agile partners. FRONT PANEL FEATURES: 1. Input 1 - Input level rotary control 2. Input 2 - Input level rotary control 3. Instrument EQ - 3-Band EQ - Bass, Middle, Treble 4. Volume - Output level for instrument channel 5. Audio EQ - 3-Band EQ - Bass, Middle, Treble 6. Volume -Output level for stereo audio B-SOCIAL - USER MANUAL B-SOCIAL - USER MANUAL 7.8.9.10.11. 12.13.14.15. SIDE PANEL: 7. Input 2 - Passive Jack instrument input. 8. Input 2 - Active Jack instrument input. 9. Line Output - Mini jack stereo line output 10. AppTek input - 4-pole mini jack socket. 11. Headphone output - Mini jack socket. 12. Input 1 - Passive Jack instrument input. 13. Input 1 - Active Jack instrument input. 14. USB - Audio interface connection USB 2.0. 15. Line Input - Mini jack socket. 16. Mains - On/Off SIDE & REAR PANEL FEATURES: 16. 17. 18. 19. 20. 21. REAR PANEL: 17. Wireless Catch 18. Wireless ON/OFF 19. Left 8 Ohm speaker out 20. Speaker Mute 21. Right 8 Ohm speaker out B-SOCIAL - USER MANUAL B-SOCIAL - USER GUIDE The Ashdown B social has been designed as a high quality Studio/ Home amplification system with exceptional definition and clarity, this will enable you to make quality recordings at home as well as in a professional studio. It will accept inputs from Bass Guitars, Acoustic Guitars, electric Violins, Pianos, Keyboards and Microphones etc. It also features a quality music player system with cabinet compensation and adjustable tone controls to enable a balanced sound to be obtained across a variety of sources. At this point it will be worth understanding the various signal flows through the amplifier and what has been done to each in terms of compensation etc. Starting with the instrument inputs, Channel 1 flows through from either the input jack sock- ets or from the built in wireless receiver. In both cases the raw signal from the instrument is passed directly to the Left channel of the stereo codec and therefore into the computer at- tached to the B Social unless you are using the Apptek in which case the effected signal will be used. Similarly Channel 2 jack input is passed directly to the Right channel of the codec, once again the signal is in the raw state. It therefore follows that any controls on the B Social such as Gain and the EQ will not affect the recorded sound, All level settings etc. will be performed by the software you are using independent of the B Social. Any sound you have recorded or are monitoring can be accessed independently via the return from the codec. In this case the L and R outputs are internally summed and passed through the Audio channel, the input gains on the instrument channels should be set to Zero to do this. The more processing reduces the quality of any Audio signal carried out on it; it is recom- mended that the highest quality recording will therefore be obtained with a WIRED connec- tion in preference to the Radio system. When using the B social as an instrument amplifier you can use either instrument channel or both simultaneously, the mix is obtained by juggling the Input controls, at the same time it is possible to Jam along with tracks sourced either from your computer connected via the USB or via another device connected by the LINE input or by Bluetooth. Using the appropriate leads a CD player may also be connected via the LINE in. As before Direct WIRED connections will give the best results with a progressive loss in quality when using Bluetooth and Downloaded Audio. B-SOCIAL - USER MANUAL B-SOCIAL - USER GUIDE The Audio channel The Audio channel deals with signals from the Codec Return i.e. sound sent from the com- puter, Audio from the LINE in and Bluetooth inputs. All these sources are internally mixed at a fixed ratio and there exists a preference order within the mixer. Signals can be used from the Codec at the same time as signals from the LINE in OR Bluetooth: note that the LINE takes preference over the Bluetooth in the same way as the Wired input to Channel 1 takes preference over the Wireless system. The mix of these signals can be optimised by controlling the Output levels on the Source de- vices. A comprehensive 3 band EQ follows next and finally the Volume control for the Audio section. During its passage through this EQ the Audio is compensated for cabinet response to give a balanced sound with the EQ set Central , neither boost or cut and with any loud- ness and bass compensations turned OFF on any connected devices. Once again the best results will be obtained with any equalisers in these devices set to FLAT. At lower listening volumes or to compensate for room acoustics the Tone controls can be adjusted to either Boost or Cut the sound according to taste. At this point the signal from the instruments is split into two for the left an…

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SCS-F18: Project and Product Certification Representative Authorization Letter Page 1 of 2 Rev 5.0 775 Montague Expressway Milpitas, CA 95035 Tel: 408-526-1188 Fax: 408-526-1088 Email: [email protected] Project and Product Certification Representative Authorization Letter Reason for Amendment (current / obsolete) Revision History Approved Date From To Initial Release (obsolete) 1.0 1.0 Nov-14-2006 Revised wording (obsolete) 1.0 2.0 Sept–25-2007 Updated company template (obsolete) 2.0 3.0 Jan-31-2012 Updated letter information (obsolete) 3.0 4.0 May-23-2014 Added FCC ID field (current) 4.0 5.0 Sept 16 2014 SCS-F18: Project and Product Certification Representative Authorization Letter Page 2 of 2 Rev 5.0 Ashdown Design & Marketing Ltd. 2015-11-4 To: SIEMIC, INC. 775 Montague Expressway, Milpitas, CA 95035 USA Dear Sir/Madam, Re: Product Certification Representative Authorization Letter We, Ashdown Design & Marketing Ltd. hereby authorize SIEMIC, Inc. to act as a Certification Body for certifying for the following project(s): Bluetooth wireless amplifier, B-Social FCC ID: 2AGAH-SOCIAL1 Sincerely, signature Jing Liu/Senior Engineer E-mail: [email protected] Phone: 027-59003789 Fax: 027-59508086 Address: The Old Maltings, Hall Road, Heybridge, Maldon, Essex, CM9 4NJ, United Kingdom.

SCS-F19: Confidentiality Request Letter Page 1 of 2 Rev 3.0 775 Montague Expressway Milpitas, CA 95035 Tel: 408-526-1188 Fax: 408-526-1088 Email: [email protected] Confidentiality Request Letter Reason for Amendment (current / obsolete) Revision History Approved Date From To Initial Release (obsolete) 1.0 1.0 Nov-14-2006 Adding CFR 2.459 (obsolete) 1.0 2.0 August – 11 - 2008 Updated company template & Added text box (current) 2.0 3.0 Jan-31-2012 SCS-F19: Confidentiality Request Letter Page 2 of 2 Rev 3.0 Ashdown Design & Marketing Ltd. 2015-11-4 To: Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD Subject: Permanent Confidentiality Request for FCC ID: 2AGAH-SOCIAL1 We hereby request confidential treatment of information accompanying this application as outlined below: - Block Diagram - Schematics - Operational Description The above materials contain trade secrets and proprietary information not customarily released to the public. The public disclosure of these materials may be harmful to the applicant and provide unjustified benefits to its competitors. The applicant understands that pursuant to Section 0.457 & 0.459 of the Rules, disclosure of this application and all accompanying documentation will not be made before the date of the Grant for this application. Sincerely, signature Jing Liu/Senior Engineer E-mail: [email protected] Phone: 027-59003789 Fax: 027-59508086 Address: The Old Maltings, Hall Road, Heybridge, Maldon, Essex, CM9 4NJ, United Kingdom.

PHOTOGRAPHS OF EUT (EXTERNAL PHOTO) Bluetooth wireless amplifier

Label Location

Bluetooth wireless amplifier BT Antenna BT Module

FCC ID: 2AGAH-SOCIAL1 RF EXPOSURE EVALUATION According to FCC 1.1310: The criteria listed in the following table shall be used to evaluate the environment impact of human exposure to radio frequency(RF) Radiation as specified in §1.1307(b) Limits for Maximum Permissible Exposure (MPE) Frequency Range(MHz) Electric Field Strength(V/m) Magnetic Field Strength(A/m) Power Density(mW/cm 2 ) Average Time (A) Limits for Occupational/Control Exposures 300-1500 -- -- F/300 6 1500-100000 -- -- 5 6 (B) Limits for General Population/Uncontrol Exposures 300-1500 -- -- F/1500 6 1500-100000 -- -- 1 30 11.1 Friis transmission formula: Pd= (Pout*G)\ (4*pi*R 2 ) Where Pd= Power density in mW/cm 2 Pout=output power to antenna in mW G= Numeric gain of the antenna relative to isotropic antenna Pi=3.1416 R= distance between observation point and center of the radiator in cm Pd the limit of MPE,1mW/cm 2 . If we know the maximum gain of the antenna and total power input to the antenna, through the calculation, we will know the distance where the MPE limit is reached. mW = 10^( dBm/10) 11.2 Measurement Result Operation Frequency: 2402MHz-2480MHz; Power density limited: 1mW/ cm 2; Antenna gain: PCB Antenna 2dBi; Bluetooth DSS &DTS: Channel Freq. (MHz) modulation conducted power (mW) conducted power (dBm) Tune-up power (dBm) Max tune-up power (dBm) Antenna Gain Numeric Power density at 20cm (mW/cm2) Power density Limits (mW/cm2 ) 2402 GFSK 1.69 2.283 3.0±1 4 1.58 0.000792 1 2441 1.88 2.753 3.0±1 4 1.58 0.000792 1 2480 1.86 2.702 3.0±1 4 1.58 0.000792 1 2402 pi/4- DQPSK 2.28 3.573 4.0±1 5 1.58 0.000997 1 2441 2.52 4.008 4.0±1 5 1.58 0.000997 1 2480 2.43 3.863 4.0±1 5 1.58 0.000997 1 2402 8DPSK 2.34 3.692 4.0±1 5 1.58 0.000997 1 2441 2.58 4.113 4.0±1 5 1.58 0.000997 1 2480 2.18 3.391 4.0±1 5 1.58 0.000997 1 2402 GFSK 7.72 8.875 8.5±1 9.5 1.58 0.002810 1 2440 8.47 9.278 8.5±1 9.5 1.58 0.002810 1 2480 8.28 9.180 8.5±1 9.5 1.58 0.002810 1

TRF No.:FCC 15.247/A Page 1 of 43 Report No.: ES151016009E2 Ver.1.0 Access to the World FCC 47 CFR PART 15 SUBPART C CERTIFICATION TEST REPORT For Bluetooth wireless amplifier Model No.: B-Social FCC ID: 2AGAH-SOCIAL1 Trademark: ASHDOWN REPORT NO.: ES151016009E2 ISSUE DATE: November 17, 2015 Prepared for Ashdown Design & Marketing Ltd. The Old Maltings, Hall Road, Heybridge, Maldon, Essex, CM9 4NJ, United Kingdom. Prepared by SHENZHEN EMTEK CO., LTD. Bldg 69, Majialong Industry Zone, Nanshan District, Shenzhen, Guangdong, China TEL: 86-755-26954280 FAX: 86-755-26954282 TRF No.:FCC 15.247/A Page 2 of 43 Report No.: ES151016009E2 Ver.1.0 Access to the World Table of Contents 1 TEST RESULT CERTIFICATION ...................................................................................................................... 3 2 EUT TECHNICAL DESCRIPTION .................................................................................................................... 4 3 SUMMARY OF TEST RESULT ........................................................................................................................... 6 4 TEST METHODOLOGY ...................................................................................................................................... 7 4.1 GENERAL DESCRIPTION OF APPLIED STANDARDS .......................................................................... 7 4.2 MEASUREMENT EQUIPMENT USED ..................................................................................................... 7 4.3 DESCRIPTION OF TEST MODES ............................................................................................................. 8 5 FACILITIES AND ACCREDITATIONS ............................................................................................................. 9 5.1 FACILITIES ................................................................................................................................................. 9 5.2 LABORATORY ACCREDITATIONS AND LISTINGS .............................................................................. 9 6 TEST SYSTEM UNCERTAINTY ...................................................................................................................... 10 7 SETUP OF EQUIPMENT UNDER TEST ......................................................................................................... 11 7.1 RADIO FREQUENCY TEST SETUP 1 ..................................................................................................... 11 7.2 RADIO FREQUENCY TEST SETUP 2 ..................................................................................................... 11 7.3 CONDUCTED EMISSION TEST SETUP ................................................................................................. 12 7.4 SUPPORT EQUIPMENT ........................................................................................................................... 12 8 TEST REQUIREMENTS .................................................................................................................................... 13 8.1 DTS (6DB) BANDWIDTH ........................................................................................................................ 13 8.2 MAXIMUM PEAK CONDUCTED OUTPUT POWER ............................................................................ 16 8.3 MAXIMUM POWER SPECTRAL DENSITY .......................................................................................... 19 8.4 UNWANTED EMISSIONS IN NON-RESTRICTED FREQUENCY BANDS ......................................... 22 8.5 RADIATED SPURIOUS EMISSION ......................................................................................................... 27 8.6 CONDUCTED EMISSIONS TEST ........................................................................................................... 40 8.7 ANTENNA APPLICATION ....................................................................................................................... 43 TRF No.:FCC 15.247/A Page 3 of 43 Report No.: ES151016009E2 Ver.1.0 Access to the World 1 TEST RESULT CERTIFICATION Applicant: Ashdown Design & Marketing Ltd. The Old Maltings, Hall Road, Heybridge, Maldon, Essex, CM9 4NJ, United Kingdom. Manufacturer: WUHAN ELECA ELECTRONICS CO., LTD. No.12, The 5th Jiangjun Road, Dongxi Lake District, Wuhan, Hubei, China. Product Description: Bluetooth wireless amplifier Model Number: B-Social File Number: ES151016009E2 Date of Test: September 17, 2015 to November 4, 2015 Measurement Procedure Used: APPLICABLE STANDARDS STANDARD TEST RESULT FCC 47 CFR Part 2, Subpart J:2014 FCC 47 CFR Part 15, Subpart C:2014 PASS The above equipment was tested by SHENZHEN EMTEK CO., LTD. The test data, data evaluation, test procedures, and equipment configurations shown in this report were made in accordance with the procedures given in ANSI C63.10 (2013) and the energy emitted by the sample EUT tested as described in this report is in compliance with the requirements of FCC Rules Part 2 and Part 15.247 The test results of this report relate only to the tested sample identified in this report Date of Test : September 17, 2015 to November 4, 2015 Prepared by : Jack Li/Editor Reviewer : Joe Xia/Supervisor Approve & Authorized Signer : Lisa Wang/Manager TRF No.:FCC 15.247/A Page 4 of 43 Report No.: ES151016009E2 Ver.1.0 Access to the World 2 EUT TECHNICAL DESCRIPTION Characteristics Description Device Type: Bluetooth device Data Rate 1Mbps Modulation: 1Mbps for GFSK modulation Operating Frequency Range(s): 2402-2480MHz Number of Channels: 40 Channels Transmit Power Max: 9.278dBm Antenna Type : PCB Antenna Antenna Gain: 2dBi Power supply: DC supply: AC 120V~ 60Hz 80W MAX Adapter supply: Temperature Range: 0°C ~ +40°C RF power setting in TEST SW: Maximum power Note: for more details, please refer to the User’s manual of the EUT. TRF No.:FCC 15.247/A Page 5 of 43 Report No.: ES151016009E2 Ver.1.0 Access to t…

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Conducted Measurement Photo Radiated Emission Test