FCC ID: XCO-SRXII Wireless DSP subwoofer amplifier

SRXII Manual Wireless DSP subwoofer amplifier TABLE OF CONTENT 1. Introduction . . . . . . . . . . . . . . . 03 2. SRXII Overview . . . . . . . . . . . . . . 04 04 2.1 Included in the box 05 2.2 SRXII Layout 06 2.3 LED indications 3. How to set up . . . . . . . . . . . . . . 07 07 07 08 08 3.1 Setting up the SRXII 3.2 Pair with transmitter using WiSA 3.3 Connect to preamp 3.4 Connecting satellite speakers 4. How to use . . . . . . . . . . . . . . . 09 09 10 10 11 11 4.1 Audio playback 4.2 Automatic Standby 4.3 Manual Crossover 4.4 Level adjustment 4.5 Phase adjustment 5. Trouble shooting . . . . . . . . . . . . . 12 12 5.1 Factory reset 6. Safety & Warnings . . . . . . . . . . . . . 13 13 14 16 6.1 Important Safety Instructions 6.2 Warning 6.3 Compliance 02 1. Introduction Thank you for buying the SRXII. We hope you will enjoy it!

Features Bass-management:

overs, phase, and level. App support:

Easy control of the SRXII through APP. Personalize your set tings to get the best listening experience. DSP functions for manual and Room EQ:

automatic Room EQ so your system sound just right. Standby mode:

Standby mode can be adjusted to match your use of the product. Introduction 03 2. SRXII Overview 2.1 Included in the box 1x SRXII 1x Power cable 04 SRXII Overview 2.2 SRXII Layout FRONT Line output XLR output Pairing button Level adjustment Phase adjustment Crossover adjustment Power switch Standby mode switch Service port Power connection Line input XLR input WiSA indicator SRXII Overview 05 2.3 LED indications Solid white: Connected White blink: Pairing mode LED OFF: Disconnected 06 SRXII Overview 3. How to set up 3.1 Setting up the SRXII Connect power supply Plug the included power supply into the SRXII. Turn ON the device using the power button. 3.2 Pair with transmitter using WiSA The SRXII can be paired with any WiSA transmitter. Transmitter with bass-management Set crossover on the SRXII to FLAT. Press and hold the pair button on SRXII for 3 seconds. Follow the instructions of the WiSA transmitter to complete pairing. Transmitter without bass-management Press and hold the pairing button on the SRXII for 3 seconds. Follow the instructions of the WiSA transmitter to complete pairing. How to set up 07 3.3 Connect to preamp The SRXII can be connected to preamps using XLR or phono cables. Preamp with bass-mangement Set crossover on the SRXII to FLAT. Use XLR or phono cables to connect the SRXII with the preamp using LINE IN ports. Preamp without bass-management Use phono cables to connect the SRXII with the preamp using with LINE IN ports. 3.4 Connecting satellite speakers

powered speaker to play satellite output. The highpass cross over of the satellite output will be set according to the crossover setting on the unit or in the APP. 08 How to set up 4. How to use 4.1 Audio playback XLR Any source with XLR output can be connected to the SRXII through the LINE IN ports. NB: XLR input supports up to 5Vrms Phono Any analogue source with phono output can be connected to the SRXII through the LINE IN ports. NB: Phono input supports up to 2.5Vrms How to use 09 4.2 Automatic Standby Standby mode ON/Auto When set to Auto, the subwoof er will enter standby automat

the APP (default 20min) without signal. When set to ON, the subwoofer will remain ON al ways until power is removed. 4.3 Manual Crossover Adjust crossover To adjust the subwoofers crossover frequency, push the button to set the correspond

Via rearplate operation, the 4th order highpass and lowpass

cy according to the showing. The frequencies can be adjust ed freely and individually via the APP. 10 How to use 4.4 Level adjustment Adjust the output level Adjust the subwoofer output level by rotating the knob. The adjustment is used to align your subwoofers output level with your main speakers level. 4.5 Phase adjustment Adjust the subwoofer phase Adjust the subwoofer output phase by rotating the knob. The adjustment is used to align the subwoofer with your main speakers. How to use 11 5. Trouble shooting 5.1 Factory reset To perform a factory reset press and hold the crossover button for 10 seconds. 12 Trouble shooting 6. Safety & Warnings 6.1 Important Safety Instructions 1. Read these instructions. 2. Keep these instructions. 3. Heed all warnings. 4. Follow all instructions. 5. Do no use this apparatus near water. 6. Clean only with dry cloth. 7. Do not block any ventilation openings. Install in accordance with manufacturers instructions. 8. Do not install near any heat sources such as radiators, heat registers, stoves or

9. Do no defeat the purpose of the safety purpose of the polarized or ground

grounding type plug has two blades and a grounding plug. The wide blade or the

outlet, consult an electrician for replacement of the obsolete outlet. 10. Protect the power cord from being walked on or pinched, particularly plugs, convenience receptacles, and the point where they exit from the apparatus. 11. 12. turer, or sold with the apparatus. When a cart is used, use caution when moving

13. Unplug this apparatus during lightning storms or when unused for a long period of time. 14. apparatus has been damaged in any way, such as power supply cold or plug is damaged, liquid has been spilled or object have fallen into the apparatus, the apparatus has been exposed to rain or moisture, does not operate normally, or has been dropped. Safety & Warnings 13 6.2 Warning

moisture. The apparatus shall not be exposed to dripping or splashing and that no objects

Where the MAINS plug or an appliance coupler is used as the disconnect device, the disconnect device shall remain readily operable. A warning that an apparatus with CLASS I construction shall be connected to a MAINS socket outlet with a protective earthing connection. This symbol is intended to alert the user to the presence of important operating and maintenance instructions in the literature accompanying this product. ATTENTION: RISQUE DE CHOC LECTRIQUE NE PAS OUVRIR. 14 Safety & Warnings WARNING: The terminals marked with this symbol are hazardous live. External wiring connected to these terminals requires installation by an instructed person or the use of

WARNING: TO REDUCE THE RISK OF FIRE OR ELECTRIC SHOCK, DO NOT EXPOSE THIS APPLIANCE TO RAIN OR MOIS TURE. ATTENTION: AFIN DE RDUIRE LES RISQUES DINCENDIE OU DE CHOC LECTRIQUE, NE PAS EXPOSER CET APPAREIL LA PLUIE OU. CAUTION: TO REDUCE THE RISK OF ELECTRIC SHOCK, DO

SIDE. REFER SERVICING TO QUALIDIED SERVICE PERSONNEL. ATTENTION: AFIN DE RDUIRE LES RISQUE DE CHOC LEC TRIQUE, NE PAS RETIRER LE CAPOT. AUCUNE PICE LIN TRIEUR. CONFIER LENTRETIEN DE PERSONNEL QUALIFI.

triangle, is intended to alert the user to the presence of unin sulated dangerous voltage within the products enclosure that

shock to persons. The exclamation point within an equilateral triangle is intend ed to alert the user to the presence of important operating and maintenance (servicing) instructions in the literature accompanying the appliance. Safety & Warnings 15 6.3 Compliance

digital device, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installa tion. This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interfer ence will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the

one or more of the following measures:

which the receiver is connected. This device complies with part 15 of the FCC Rules. Operation is subject to the follow ing two conditions:

1. 2. may cause undesired operation. Reorient or relocate the receiving antenna. Increase the separation between the equipment and receiver.

This device may not cause harmful interference. This device must accept any interference received, including interference that Consult the dealer or an experienced radio/ TV technician for help.

compliance could void the users authority to operate the equipment. This equipment complies with FCC RF radiation exposure limits set forth for an

operating in conjunction with any other antenna or transmitter. The antennas used for this transmitter must be installed to provide a separation

in conjunction with any other antenna or transmitter. 16 Safety & Warnings

tion is subject to the following two conditions:

(1) This device may not cause interference.

(2) This device must accept any interference, including interference that may cause undesired operation of the device.

Cet appareil contient des metteurs / rcepteurs exempt (s) de licence qui sont conformes aux RSS exemptes de licence dInnovation, Sciences et Dveloppement conomique Canada. Son fonctionnement est soumis aux deux conditions suivantes:

(1) Cet appareil ne doit pas provoquer dinterfrences.

(2) Cet appareil doit accepter toute interfrence, y compris les interfrences suscep tibles de provoquer un fonctionnement indsirable de lappareil. RF Exposure This equipment complies with IC radiation exposure limits set forth for an uncon trolled environment. This equipment should be installed and operated with mini mum distance of 20cm between the radiator and your body. This transmitter must

Cet quipement est conforme aux limites d exposition aux rayonnements de la IC tablies pour unenvironnement non contr. Cet quipement doit tre install et fonctionner au moins 20cm de distance dun radiateur ou de votre corps. Safety & Warnings 17 Company Information:

Platin Gate ApS Anelystparken 31C 8381 Tilst Denmark Manufacturer information:

HANSONG (NANJING) TECHNOLOGY LTD 8 Kangping Road Jiangning Economy and Technology Development Zone 211106 Nanjing China For documentation and other information see:

18 Safety & Warnings

B FCC ID,UKCA RD17-20230300424 20230329 4.63 2.39 18.00 6.96 6.97 4.07 4.06 6.00 17.35 14.61 1.20 2.07 3.40 3.40 6.03 3.65 5.86 14.61 7.19 3.47 3.40 3.01 4.21 4.29 4.00 5.41 4.42 40.75 10.75 3.29

LOGO LOGO L O G O LOGO

0.2mm 0.2mm 1mm 0.2mm() 1mm 0.2mm() 0.2mm 0.2mm

0.15mm 0.15mm 0.2mm SQE HS/IS-SQE-01 HS/IS-SQE-02 HS/IS-SQE-03 HS/IS-SQE-04 HS/IS-SQE-05 HS/IS-SQE-06 HS/IS-SQE-07 HS/IS-SQE-08 HS/IS-SQE-10 HS/IS-SQE-21 HS/IS-SQE-22 Platin SRXII yoyo Checked by Group Leader Lydia 2023/03/29 2023/03/29 Platin SRXII 61-3-132501-0B Patrick Checked Compliance/ME Manager Una 2023/03/29 HS40-1325-B12V1-SR01 2023/03/29 1:1 REV B

Date: April 19, 2023 Ref: Attestation Statements Part 2.911(d)(5){ii) Filing FCC ID: XCO-SRXH Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 USA Hansong(Nanjing) Technology Ltd. certifies that, as of the date of the filing of the application, the applicant is not identified on the Covered List as an entity producing covered equipment. Sincerely, Wyn B Wang Rev 1/26/2023 Hansong(Nanjing) Technology Ltd. Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 USA Date: April 19, 2023 Ref: Attestation Statements Part 2.911(d)(5)(i) Filing FCC ID: XCO-SRXII Hansong(Nanjing) Technology Ltd. certifies that the equipment for which authorization is sought is not covered equipment prohibited from receiving an equipment authorization pursuant to section 2.903 of the FCC rules. Sincerely, Wyn B Wang Rev 1/26/2023 Hansong(Nanjing) Technology Ltd.

Hansong(Nanjing) Technology Ltd. Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 USA Date: 23-May-2023 Ref: Attestation Statements Part 2.911(d)(7) Filing FCC ID: XCO-SRXII FRN: 0033790858 Hansong(Nanjing) Technology Ltd. certifies that, as of the date of the filing of the application, RIVA AUDIO is our designated U.S. agent for service of process for the above referenced FCC ID. Hansong(Nanjing) Technology Ltd. accepts to maintain an agent for no less than one year after the grantee has terminated all marketing and importation or the conclusion of any Commission-related proceeding involving the equipment. RIVA AUDIO accepts, as of the date of the filing of the application, the obligation of the designated U.S. agent for service of process for the above referenced FCC ID. Designated U.S. Agent Information:

Name: RIVA AUDIO Address: 17835 Newhope Street, Unit A, Fountain Valley, California Contact Person: Brent Shafer Tel.: 8444387482 Email: brent@unionstreet.io Sincerely, Hansong(Nanjing) Technology Ltd. Wyn B Wang RIVA AUDIO Brent Shafer Rev 1/26/2023

To: Federal Communications Commission, Authorization & Evaluation Division, 7435 Oakland Mills Road, Columbia, MD 21046 To Whom It May Concern:

The Hansong(Nanjing) Technology Ltd., the undersigned, hereby authorizes Mr. Wu Xuewen from Shenzhen BALUN Technology Co., Ltd., to act on the behalf of the Hansong(Nanjing) Technology Ltd. solely in matters relating to the application for an FCC equipment authorization for FCC ID: XCO-SRXII including the signing of documents in connection with this Application. Necessary acts carried out by Shenzhen BALUN Technology Co., Ltd. in connection with the Application shall have the same effect as acts of the Hansong(Nanjing) Technology Ltd.. The Hansong(Nanjing) Technology Ltd. also hereby certify that no party to this application is subject to a denial of benefits, including FCC benefits, pursuant to Section 5301 of the Anti-Drug Abuse Act of 1988, 21 U.S.C. Section 862. Yours Sincerely, Wyn B Wang Date: 19 April 2023 Hansong(Nanjing) Technology Ltd.

Date: 19 April 2023 Hansong(Nanjing) Technology Ltd. Federal Communications Commission, Authorization & Evaluation Division, 7435 Oakland Mills Road, Columbia, MD 21046 Re: Hansong(Nanjing) Technology Ltd. FCC ID: XCO-SRXIl FCC Certification Confidentiality Request Gentlemen:

This letter is to comply with 47 CFR 0.457 and 0.459 pertaining to confidentiality material. Hansong(Nanjing) Technology Ltd. requests that the following documents regarding this submission for FCC ID: XCO-SRXII be kept confidential:

Exhibit Type File Name Block Diagram Block Diagram.pdf Schematics Schematics.pdf Operational Description | Operational Description.pdf And below exhibit kept short-term confidential (180 days):

External photos External photos.pdf Test setup photos test photo. pdf internal photos Internal photos. pdf User manual User manual.pdf Those documents contain detailed system and equipment description and related information about the product which Hansong(Nanjing) Technology Ltd. considers to be confidential proprietary, a custom design and, otherwise, not releasable to the general public. Since this design is a basis form which future technological products will evolve, Hansong(Nanjing) Technology Ltd. considers this information would be of benefit to its competitors, and that the disclosure of the information in these documents would give competitors an unfair advantage in the market. Yours Sincerely, Wyn B Wang

Suppliers Declaration of Conformity Responsible party details Company name:

RIVA AUDIO Address:

17835 Newhope Street, Unit A, Fountain Valley, California Contact Person:

Brent Shafer Email:

Phone No.:

Fax No.:

brent@unionstreet.io 8444387482

Product details Product:

Brand name:

Model name:

Wireless DSP subwoofer amplifier Platin SRXII Manufacturer:

HansongNanjingTechnology Ltd. Address:

8th Kangping Road, Jiangning Economy and Technology Development Zone, Nanjing, 211106, China. We hereby declare that the equipment bearing the trade name and model number specified above was tested confirming to the applicable FCC Rules under the most accurate measurement standards possible, and that all the necessary steps have been taken and are in force to assure that production units of the same equipment will continue to comply with the Commissions requirements. Applied Standards Report No.:

United States CFR 47 Part 15 Subpart B - Electromagnetic Emissions (Unintentional Radiators) BL-SZ2330471-401 The product 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. Signature:

Print name:

Brent Shafer Date of issue: May 19, 2023