2A348SPARK2Guitar Speaker

Spark 2 User Manual Table of Contents 03 05 07 08 08 09 10 11 12 13 14 Product Spec Hardware Control (Top) Hardware Control (Rear) Pairing Spark 2 and the Spark App To play music via Bluetooth® USB Audio Installing Battery Pairing With A Spark Control X Tuner Mode Factory Default Settings Factory Reset / Force Shutdown & Restart 01 Product Specification 03 AUDIO SPECIFICATIONS FREQUENCY RANGE 20-20000 Hz STEREO/MONO STEREO MAXIMUM SOUND PRESSURE LEVEL RMS : 114 dB SPL @ 1m Peak : 120 dB SPL @ 1m CABINET PRINCIPLE Bass Reflex POWER AMPLIFIERS 50W RMS, Class D Amplifier SPEAKERS 2 x 4 inch Full Range Speaker with Custom Angled Horn TOTAL IMPEDANCE 4 ohms ONBOARD LOOPER Up to 60 seconds recording time CONTROLS AND CONNECTIVITY FRONT PANEL CONTROLS Power Button Eight Programmable Preset Selector Amp Controls (Gain, Bass, Mid, Treble, Master Mod, Delay, Reverb, Volume) Bluetooth/Music Channel Volume Looper Controls (Rec/Dub, Play/Stop, Undo/ Redo/Clear) Tap/Tuner Button REAR PANEL CONTROLS Bluetooth Pair Button COMPUTATIONAL AUDIO Sonic IQ Computational Audio Dedicated Computational Audio Chip Dynamic Range Compression Bass Enhancement Stereo Widening Auto EQ ONBOARD EFFECTS 33 Amp Models (For electric guitar, acoustic guitar, bass) 43 Effects (Noise Gate, Compressor, Distortion, Modulation/EQ, Delay, Reverb) Choose up to 3 pre-amp effects, 3 post amp effects, and 1 amp model for each preset WIRED CONNECTIVITY 1/4" Instrument Input x 1 1/8" Headphone Output x 1 1/4" Line Output x 2 (L/Mono & R) WIRELESS CONNECTIVITY Bluetooth 5.0 USB AUDIO USB Interface for Recording, compatible with MacOS and Windows 1 In x 2 Out 24 Bit, 44.1 kHz Sample Rate POWER MAIN INPUT POWER DC 20V, 3.25A BATTERY TYPE (Spark Battery) Detachable 6,000 mAh rechargeable lithium- ion battery (Spark Battery sold separately.) CHARGING TIME 3 hours PLAY TIME Up To 12 Hours (on mid volume) Product Specification 04 SOFTWARE MOBILE APPS Spark App for iOS and Android (included) Spark App Core Features Smart Jam - 4 Drummers Included Auto Chords 50,000+ Tones On ToneCloud® Spark AI Simple & Groove Looper Video Recording Tuner PHYSICAL UNIT DIMENSIONS Spark 2: L 375 x W 180 x H 214 mm (L 14.76 x W 7.09 x H 8.43 inch) Spark Battery (sold separately): L 86 x W 74 x H 48.7 mm (L3.38 x W2.91 x H1.91 inch) WEIGHT Spark 2: 5.5 kg / 12.125 lb Spark Battery (sold separately): 480g / 1.05 lb GRILLE CLOTH Custom Black/Gold INCLUDED IN THE BOX BOX CONTENTS Spark 2 Amplifier USB C to C Cable AC to DC Power Adapter Get Started Card Safety Instructions Card 05 Front Panel 06 A - Power Switch Hold to turn on/off Spark 2. B - Instrument Input (1/4”) For general electric guitars, acoustic guitars or basses. C - Preset Selector Turn the knob to switch between the 8 customizable presets. Press the knob to swap between the 4 red and 4 green preset banks. D - Amp Control Controls the gain, EQ and master of the amp model in the current preset. E - Effect Control Controls the MOD/DELAY/RE- VERB effect levels in the current preset. F - Guitar Volume Control Controls the overall volume of your guitar. G - Music Volume Control Controls the volume of Bluetooth music playback and USB audio. H - Looper Control (more options available in the Spark app) REC/DUB: Tap to start recording or overdubbing. Tap again to stop recording and start playback. PLAY/STOP: Starts/stops the loop playback. Hold to switch between Auto Mode and Signal Detection Mode for standalone recording: • Auto Mode (Click On): Adjustable loop length. It will automatically start recording after a 1 bar count-in and stop recording when reaching the length set in the Time Settings menu in the Spark app. • Signal Detection Mode (Click Off): Free length. It will automatically start recording when Spark 2 detects a guitar signal, users tap on the record button to stop recording. The REC/DUB LED will be yellow when entering Signal Detection Mode. UNDO/REDO (CLEAR): Removes/restores the last layer added to the loop. Hold to completely erase the recorded loop. I - Tap/Tuner Tap to set the tempo of delay effects and the looper. Hold to enter Tuner mode. J - Headphone Output (1/8”) Plug in a pair of headphones with a 1/8” jack. K - Battery Indicator Indicates battery status. With Battery loaded: Solid Green: Battery level 50-100% Solid Yellow: Battery level 10-50% Solid Red: Battery level under 10% Flashing Green/Yellow/Red: Charging L - Wireless Indicators Indicates the status of Bluetooth and Wi-Fi connections. Solid Blue/Green: Connected Flashing Blue/Green: Pairing Front Panel Rear Panel 07 M - Pair Button Press to enter Bluetooth® pairing mode when connecting to a new device. Hold to enter pairing mode when connecting to Spark Control X. N - Line Output (1/4”) Connect to the input of an external device, such as a PA system, audio interface, etc. Use the L/Mono output if only using 1 output. O - Aux input (1/8”) Connect to the stereo 1/8” output of an external device. P - USB Audio Port (USB-C®) Connect the supplied USB-C® to USB-C® cable to a PC/Mac to use as an audio interface. Q - DC Power Input Connect with the supplied Power Adapter to a power outlet. • Download the Spark app using the QR code provided or search 'Spark amp' in the App Store or Google Play Store. • Turn on Spark 2 by holding the Power button. • Open the Spark app on your mobile device and follow the instructions to connect your Spark to access all of the gear, smart features, and more. 08 Pairing Spark 2 And The Spark App • To pair a new device, press the Pair button on the Rear Panel of Spark 2, turn Bluetooth® on in the settings of your mobile device, and select “Spark 2 Audio” from the list of scanned devices. • Spark 2 will automatically pair with the last device it connected to. If the last device is not available, Spark 2 will automatically connect to a device that has been previously paired. To Play Music Via Bluetooth® 1. With Spark 2 turned off, connect to a computer via USB with the included USB cable. 2. Turn on Spar…

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External photos M/N: Spark 2 External photos M/N: Spark 2 External photos M/N: Spark 2 External photos M/N: Spark 2 External photos M/N: Spark 2 External photos M/N: Spark 2 External photos M/N: Spark 2

Internal photos M/N: Spark 2 Internal photos M/N: Spark 2 Internal photos M/N: Spark 2 Internal photos M/N: Spark 2 Internal photos M/N: Spark 2 Internal photos M/N: Spark 2 Internal photos M/N: Spark 2 Internal photos M/N: Spark 2 Internal photos M/N: Spark 2 Internal photos M/N: Spark 2 Internal photos M/N: Spark 2 Bluetooth Antenna 2.4G Wi-Fi/BLE Antenna

Page 1 of 90 Report No. ESTE-R2407098 FCC PART 15C REPORT FOR CERTIFICATION On Behalf of Positive LLC Guitar Speaker Model Number: Spark 2 FCC ID: 2A348SPARK2 Applicant : Positive LLC Address: 2820 S Alma School Rd Suite 18 PMB 2011 Chandler, AZ 85286, USA Prepared By: EST Technology Co., Ltd. Chilingxiang, Qishantou, Santun, Houjie, Dongguan, Guangdong, China Tel: 86-769-83081888-808 Report Number: ESTE-R2407098 Date of Test: Jun. 25, 2024~ Jul. 13, 2024 Date of Report: Jul. 16, 2024 Page 2 of 90 Report No. ESTE-R2407098 TABLE OF CONTENTS Description Page TEST REPORT VERIFICATION .......................................................................................................... 3 1. GENERAL INFORMATION ................................................................................................................... 5 1.1. Description of Device (EUT) ............................................................................................................ 5 1.2. Antenna Information ......................................................................................................................... 5 1.3. Information of RF Cable ................................................................................................................... 5 2. SUMMARY OF TEST ........................................................................................................................... 6 2.1. Summary of test result ..................................................................................................................... 6 2.2. Test Facilities ..................................................................................................................................... 7 2.3. Measurement uncertainty ................................................................................................................ 8 2.4. Assistant equipment used for test .................................................................................................. 8 2.5. Block Diagram ................................................................................................................................... 8 2.6. Test Mode .......................................................................................................................................... 9 2.7. Power Setting of Test Software .................................................................................................... 10 2.8. Duty Cycle ........................................................................................................................................ 10 2.9. Channel List ..................................................................................................................................... 11 2.10. Test Equipment List ...................................................................................................................... 12 3. 6DB BANDWIDTH............................................................................................................................ 14 3.1. Limit ................................................................................................................................................... 14 3.2. Test Setup ........................................................................................................................................ 14 3.3. Spectrum Analyzer Setting ............................................................................................................ 14 3.4. Test Procedure ................................................................................................................................ 14 3.5. Test Result ....................................................................................................................................... 14 4. MAXIMUM PEAK OUTPUT POWER .................................................................................................. 15 4.1. Limit ................................................................................................................................................... 15 4.2. Test Setup ........................................................................................................................................ 15 4.3. Spectrum Analyzer Setting ............................................................................................................ 15 4.4. Test Procedure ................................................................................................................................ 15 4.5. Test Result ....................................................................................................................................... 15 5. POWER SPECTRAL DENSITY .......................................................................................................... 16 5.1. Limit ................................................................................................................................................... 16 5.2. Test Setup ........................................................................................................................................ 16 5.3. Spectrum Analyzer Setting ............................................................................................................ 16 5.4. Test Procedure ................................................................................................................................ 16 5.5. Test Result ....................................................................................................................................... 16 6. CONDUCTED BAND EDGE .............................................................................................................. 17 6.1. Limit ................................................................................................................................................... 17 6.2. Test Setup ...............................................…

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表单编号：B&T-QR-EN-002版本：B3 第 1 页共 13 页 Project：Y240116710 Date.2024.06.24 REV：A2 AntennaSPEC Customername：国光 Customerproject：Spark2 PartNumber：EAN00383 B&TP/N：74220394 Spec.：Built-inantenna-2.4G-Black1.37tinwire-1generationterminal -L=70mm-PCB-40.5×15.5×0.6mm Sealedbycorporation: compilation verifyapproval QiucuipingHuchongLiulihua Sealedbycustomer： checkverifyapproval ContactinformationofB&T: Contactpersonforsales ： Longmingguo MB:18576042661E-mail ： [email protected] Contactpersonfortechnical: Huchong MB:15986832541E-mai ： [email protected] ContactpersonforQuality: zengkang MB:18188400229E-mail ： [email protected] B&TProductionaddress：No.2&3,5/F,Building8,No.218,WenwuMiddleRoad, TangxunStreet,EconomicDevelopmentZone,Mianyang,SichuanProvince, P.R.China 表单编号：B&T-QR-EN-002版本：B3 第 2 页共 13 页 Documentmaking/revising/abolishingresume EditionDateFormulate/Revisedcontent Formulate approval A02024.02.01Firstformulation Huangfeihui Huchong / Liulihua A0-03132024.03.13 UpdatePCBboard,screenprinting,line lengthspecifications,double-sidedtape Qiucuiping Huchong / Liulihua A0-03292024.03.29 Updatetechnicalrequirements(change terminalorientationtonon-orientation) Qiucuiping Huchong / Liulihua A12024.04.29 UpdatePCBshape/silkscreen/line,wire length,spongespecifications,terminalpair orientation Qiucuiping Huchong/Liulihua A22024.06.24Spark40ischangedtoSpark2 Qiucuiping Huchong / Liulihua 表单编号：B&T-QR-EN-002版本：B3 第 3 页共 13 页 Contents 1、Cover·······································································1 2.Directory·····································································3 3.Productdrawing·····························································4 4.PerformanceparametersTable··········································5 5.Electricalperformancetestreport········································6-8 6.ListofMaterialCompositionandHazardousSubstances·············9 7.packagingspecification·····················································10-11 8.AntennainstallationpositionDiagram·································12 9.Antennatestdarkroomplacement········································12 10.Reliabilitytestrequirements············································13 表单编号：B&T-QR-EN-002版本：B3 第 4 页共 13 页 3、Productdrawing 表单编号：B&T-QR-EN-002版本：B3 第 5 页共 13 页 4 、 Properties&parameter ElectricalParameter FreqRange 2400～2500MHz CharacteristicImpedance 50 Ω VSWR ≤ 1.5 TheMaxinputpower <10w Polarizationmode Polarlinearization Radiationmode Omnidirectional Connectorstyleterminal Mechanicalparameter Length70±3mm Maintaintheforce≥1㎏f CoaxialcableBlack1.37tintinwire Saltspraytest24H Environmentparameter OperatingTemp -30 °C ~65 °C 表单编号：B&T-QR-EN-002版本：B3 第 6 页共 13 页 5 、Electricaltestreport（Wholemachinetesting） S11 Standingwaveratiodata WiFiantenna Freq/MHz2400MHz2450MHz2500MHz VSWR1.321.151.12 Antennadarkroomtestdata Frequency(MHz) WiFi Gain(dBi)Efficiency(%) 2400 3.5445.62 2410 3.4045.61 2420 3.2545.53 2430 3.0145.21 2440 2.9845.18 2450 3.0345.66 2460 3.0645.54 2470 3.2145.31 2480 3.1944.55 2490 3.2444.05 2500 3.2243.48 表单编号：B&T-QR-EN-002版本：B3 第 7 页共 13 页 Antennadirectiondiagram 2400M3D-E1-E2-H 2450M3D-E1-E2-H ActiveOTAtestdata 表单编号：B&T-QR-EN-002版本：B3 第 8 页共 13 页 AntennaisolationS21 Qulldistancetest Freq/MHz2400MHz2450MHz2500MHz S21/dB-34.81-34.12-35.91 表单编号：B&T-QR-EN-002版本：B3 第 9 页共 13 页 6、ListofMaterialCompositionandHazardousSubstances I t e m Specifi cation Textureof material ROHSTestResults（PPM） ICPtestnumberTesttime CdPbHg Cr+6PBBPBDE 1 1.37wire FEP NDNDNDNDNDNDNGBPC240001312412024/1/16 TinnedwireNDNDNDNDNDNDCANEC230055775012023/7/7 2 Terminal PBTND2.24NDNDNDNDETR237059312023/8/4 Phosphor Bronze ND6NDNDNDNDCANEC240009773012024/1/22 3 PCB FR-4ND11NDNDNDNDSHAEC230173334012023/10/31 OSPNDNDNDNDNDNDCANEC240040133012024/3/14 4 Sponge PUSpongeNDNDNDNDNDNDA2230532385101004E2023/10/21 TapeNDNDNDNDNDNDA22306210011010012023/11/30 5 Double-sid edtape Double-side dtape NDNDNDNDNDNDA22306210011010012023/11/30 表单编号：B&T-QR-EN-002版本：B3 第 10 页共 13 页 PACKINGCRITERION P/N ：74220394 Spec. ： Built-inantenna-2.4G-Black1.37tinwire-1generationterminal-L=70mm-PCB-40.5× 15.5×0.6mm 一、contentsoflabel(accordingtothecustomer'sname,refertothecorrespondingfinished productlabelproductionrequirements.Ifthereisnorequirement,itwillfollowtheordinarylabel requirements.) LabelforPEbag/carton,L:10cm;W:6cmLabelforPEbag/carton,L:10cm;W:6cm buyer ************* buyer ************* vender SichuanB&TTechnologyCo.,Ltd. vender SichuanB&TTechnologyCo.,Ltd. PurchaseNo ************* PurchaseNo ************* MaterialNo. ***************** MaterialNo. ***************** Partname ******** QC ** Partname ******* QC ** Q’ty/Unit ***** Manufacturedate ****.**.* Q’ty/Unit ***** Manufacturedate ****.**.* Tracecode******** Runningwaternumber ********Tracecode******* Runningwaternumber ******** 二、 Packingrequirement Operatingdescription ： 1． innerpacking ： 50 PCS/smallbag , 200PCS/bigbag 2．outerpacking： QuantityaccordingtoactualpackingPCS/carton Notice： 第 11 页共 13 页 Formno.:B&T-qr-en-002version:B3 Page12of13 页 8 、 AntennainstallationpositionDiagram 9、Antennatestdarkroomplacement Formno.:B&T-qr-en-002version:B3 Page13of13 页 10、Reliabilitytestrequirements

Page 49 of 90 Report No. ESTE-R2407098 Appendix C: Maximum power spectral density Test Result Test Mode Antenna Frequency[MHz] Result[dBm/3-100kHz] Limit[dBm/3kHz] Verdict 11B Ant1 2412 -9.39 ≤8.00 PASS 11B Ant1 2437 -9.09 ≤8.00 PASS 11B Ant1 2462 -9.82 ≤8.00 PASS 11G Ant1 2412 -12.43 ≤8.00 PASS 11G Ant1 2437 -12.79 ≤8.00 PASS 11G Ant1 2462 -11.81 ≤8.00 PASS 11N20SISO Ant1 2412 -11.82 ≤8.00 PASS 11N20SISO Ant1 2437 -12.55 ≤8.00 PASS 11N20SISO Ant1 2462 -11.39 ≤8.00 PASS 11N40SISO Ant1 2422 -14.93 ≤8.00 PASS 11N40SISO Ant1 2437 -14.66 ≤8.00 PASS 11N40SISO Ant1 2452 -14.81 ≤8.00 PASS Page 50 of 90 Report No. ESTE-R2407098 Test Graphs 11B-Ant1-2412-PASS 11B-Ant1-2437-PASS 11B-Ant1-2462-PASS Page 51 of 90 Report No. ESTE-R2407098 11G-Ant1-2412-PASS 11G-Ant1-2437-PASS 11G-Ant1-2462-PASS Page 52 of 90 Report No. ESTE-R2407098 11N20SISO-Ant1-2412-PASS 11N20SISO-Ant1-2437-PASS 11N20SISO-Ant1-2462-PASS Page 53 of 90 Report No. ESTE-R2407098 11N40SISO-Ant1-2422-PASS 11N40SISO-Ant1-2437-PASS 11N40SISO-Ant1-2452-PASS Page 54 of 90 Report No. ESTE-R2407098 Appendix D: Reference level measurement Test Result Test Mode Antenna Freq(MHz) Max.Point[MHz] Result[dBm] 11B Ant1 2412 2412.53 4.09 11B Ant1 2437 2435.39 4.49 11B Ant1 2462 2462.51 4.54 11G Ant1 2412 2416.98 0.88 11G Ant1 2437 2431.98 0.72 11G Ant1 2462 2456.99 1.74 11N20SISO Ant1 2412 2409.51 1.05 11N20SISO Ant1 2437 2430.77 -0.38 11N20SISO Ant1 2462 2459.51 1.27 11N40SISO Ant1 2422 2425.75 -1.30 11N40SISO Ant1 2437 2433.24 -2.79 11N40SISO Ant1 2452 2443.21 -2.46 Page 55 of 90 Report No. ESTE-R2407098 Test Graphs 11B-Ant1-2412-PASS 11B-Ant1-2437-PASS 11B-Ant1-2462-PASS Page 56 of 90 Report No. ESTE-R2407098 11G-Ant1-2412-PASS 11G-Ant1-2437-PASS 11G-Ant1-2462-PASS Page 57 of 90 Report No. ESTE-R2407098 11N20SISO-Ant1-2412-PASS 11N20SISO-Ant1-2437-PASS 11N20SISO-Ant1-2462-PASS Page 58 of 90 Report No. ESTE-R2407098 11N40SISO-Ant1-2422-PASS 11N40SISO-Ant1-2437-PASS 11N40SISO-Ant1-2452-PASS Page 59 of 90 Report No. ESTE-R2407098 Appendix E: Band edge measurements Test Result Test Mode Antenna ChName Frequency[MHz] RefLevel[dBm] Result[dBm] Limit[dBm] Verdict 11B Ant1 Low 2412 4.09 -40.69 ≤-15.91 PASS 11B Ant1 High 2462 4.54 -40.8 ≤-15.46 PASS 11G Ant1 Low 2412 0.88 -36.68 ≤-19.12 PASS 11G Ant1 High 2462 1.74 -40.58 ≤-18.26 PASS 11N20SISO Ant1 Low 2412 1.05 -38.15 ≤-18.95 PASS 11N20SISO Ant1 High 2462 1.27 -41.14 ≤-18.73 PASS 11N40SISO Ant1 Low 2422 -1.30 -39.32 ≤-21.3 PASS 11N40SISO Ant1 High 2452 -2.46 -40.75 ≤-22.46 PASS Page 60 of 90 Report No. ESTE-R2407098 Test Graphs 11B-Ant1-2412-PASS 11B-Ant1-2462-PASS 11G-Ant1-2412-PASS Page 61 of 90 Report No. ESTE-R2407098 11G-Ant1-2462-PASS 11N20SISO-Ant1-2412-PASS 11N20SISO-Ant1-2462-PASS Page 62 of 90 Report No. ESTE-R2407098 11N40SISO-Ant1-2422-PASS 11N40SISO-Ant1-2452-PASS Page 63 of 90 Report No. ESTE-R2407098 Appendix F: Conducted Spurious Emission Test Result Test Mode Antenna Frequency[MHz] FreqRange [Mhz] RefLevel [dBm] Result [dBm] Limit [dBm] Verdict 11B Ant1 2412 30~26500 4.09 -43.36 ≤-15.91 PASS 11B Ant1 2437 30~26500 4.49 -42.92 ≤-15.51 PASS 11B Ant1 2462 30~26500 4.54 -43.65 ≤-15.46 PASS 11G Ant1 2412 30~26500 0.88 -43.05 ≤-19.12 PASS 11G Ant1 2437 30~26500 0.72 -43.61 ≤-19.28 PASS 11G Ant1 2462 30~26500 1.74 -43.4 ≤-18.26 PASS 11N20SISO Ant1 2412 30~26500 1.05 -42.18 ≤-18.95 PASS 11N20SISO Ant1 2437 30~26500 -0.38 -43.68 ≤-20.38 PASS 11N20SISO Ant1 2462 30~26500 1.27 -43.22 ≤-18.73 PASS 11N40SISO Ant1 2422 30~26500 -1.30 -43.73 ≤-21.3 PASS 11N40SISO Ant1 2437 30~26500 -2.79 -42.72 ≤-22.79 PASS 11N40SISO Ant1 2452 30~26500 -2.46 -42.77 ≤-22.46 PASS Page 64 of 90 Report No. ESTE-R2407098 Test Graphs 11B-Ant1-2412-30~26500-PASS 11B-Ant1-2437-30~26500-PASS 11B-Ant1-2462-30~26500-PASS Page 65 of 90 Report No. ESTE-R2407098 11G-Ant1-2412-30~26500-PASS 11G-Ant1-2437-30~26500-PASS 11G-Ant1-2462-30~26500-PASS Page 66 of 90 Report No. ESTE-R2407098 11N20SISO-Ant1-2412-30~26500-PASS 11N20SISO-Ant1-2437-30~26500-PASS 11N20SISO-Ant1-2462-30~26500-PASS Page 67 of 90 Report No. ESTE-R2407098 11N40SISO-Ant1-2422-30~26500-PASS 11N40SISO-Ant1-2437-30~26500-PASS 11N40SISO-Ant1-2452-30~26500-PASS Page 68 of 90 Report No. ESTE-R2407098 Appendix G: Duty Cycle Test Result Test Mode Antenna Frequency[MHz] Transmission Duration [ms] Transmission Period [ms] Duty Cycle [%] 11B Ant1 2437 20.00 20.00 100.00 11G Ant1 2437 5.48 5.51 99.46 11N20SISO Ant1 2437 5.08 5.10 99.61 11N40SISO Ant1 2437 2.46 2.49 98.80 Page 69 of 90 Report No. ESTE-R2407098 Test Graphs NTNV-11B-Ant1-2437 NTNV-11G-Ant1-2437 NTNV-11N20SISO-Ant1-2437 Page 70 of 90 Report No. ESTE-R2407098 NTNV-11N40SISO-Ant1-2437

Page 71 of 90 Report No. ESTE-R2407098 12. TEST SETUP PHOTO Conducted Test Page 72 of 90 Report No. ESTE-R2407098 Radiated Test (Below 1GHz) Radiated Test (Above 1GHz) Page 73 of 90 Report No. ESTE-R2407098 13. EUT PHOTO External Photos M/N: Spark 2 Page 74 of 90 Report No. ESTE-R2407098 External Photos M/N: Spark 2 Page 75 of 90 Report No. ESTE-R2407098 External Photos M/N: Spark 2 Page 76 of 90 Report No. ESTE-R2407098 External Photos M/N: Spark 2 Page 77 of 90 Report No. ESTE-R2407098 External Photos M/N: Spark 2 Page 78 of 90 Report No. ESTE-R2407098 External Photos M/N: Spark 2 Page 79 of 90 Report No. ESTE-R2407098 External Photos M/N: Spark 2 Page 80 of 90 Report No. ESTE-R2407098 Internal Photos M/N: Spark 2 Page 81 of 90 Report No. ESTE-R2407098 Internal Photos M/N: Spark 2 Page 82 of 90 Report No. ESTE-R2407098 Internal Photos M/N: Spark 2 Page 83 of 90 Report No. ESTE-R2407098 Internal Photos M/N: Spark 2 Page 84 of 90 Report No. ESTE-R2407098 Internal Photos M/N: Spark 2 Page 85 of 90 Report No. ESTE-R2407098 Internal Photos M/N: Spark 2 Page 86 of 90 Report No. ESTE-R2407098 Internal Photos M/N: Spark 2 Page 87 of 90 Report No. ESTE-R2407098 Internal Photos M/N: Spark 2 Page 88 of 90 Report No. ESTE-R2407098 Internal Photos M/N: Spark 2 Page 89 of 90 Report No. ESTE-R2407098 Internal Photos M/N: Spark 2 Page 90 of 90 Report No. ESTE-R2407098 Internal Photos M/N: Spark 2 End of Test Report 2.4G Wi-Fi Antenna

Page 1 of 76 Report No.ESTE-R2407097 FCC PART 15C TEST REPORT FOR CERTIFICATION On Behalf of Positive LLC Guitar Speaker Model Number: Spark 2 FCC ID: 2A348SPARK2 Applicant : Positive LLC Address: 2820 S Alma School Rd Suite 18 PMB 2011 Chandler, AZ 85286, USA Prepared By: EST Technology Co., Ltd. Chilingxiang, Qishantou, Santun, Houjie, Dongguan, Guangdong, China Tel: 86-769-83081888-808 Report Number: ESTE-R2407097 Date of Test: Jun. 25, 2024~ Jul. 13, 2024 Date of Report: Jul. 16, 2024 Page 2 of 76 Report No.ESTE-R2407097 TABLE OF CONTENTS Description Page TEST REPORT VERIFICATION .......................................................................................................... 3 1. GENERAL INFORMATION ................................................................................................................... 5 1.1. Description of Device (EUT) ............................................................................................................ 5 1.2. Antenna Information ......................................................................................................................... 5 1.3. Information of RF Cable ................................................................................................................... 5 2. SUMMARY OF TEST ........................................................................................................................... 6 2.1. Summary of test result ..................................................................................................................... 6 2.2. Test Facilities ..................................................................................................................................... 7 2.3. Measurement uncertainty ................................................................................................................ 8 2.4. Assistant equipment used for test .................................................................................................. 8 2.5. Block Diagram ................................................................................................................................... 8 2.6. Test Mode .......................................................................................................................................... 9 2.7. Power Setting of Test Software ...................................................................................................... 9 2.8. Duty Cycle .......................................................................................................................................... 9 2.9. Channel List ..................................................................................................................................... 10 2.10. Test Equipment List ...................................................................................................................... 11 3. 6DB BANDWIDTH ............................................................................................................................ 13 3.1. Limit ................................................................................................................................................... 13 3.2. Test Setup ........................................................................................................................................ 13 3.3. Spectrum Analyzer Setting ............................................................................................................ 13 3.4. Test Procedure ................................................................................................................................ 13 3.5. Test Result ....................................................................................................................................... 13 4. MAXIMUM PEAK OUTPUT POWER .................................................................................................. 14 4.1. Limit ................................................................................................................................................... 14 4.2. Test Setup ........................................................................................................................................ 14 4.3. Spectrum Analyzer Setting ............................................................................................................ 14 4.4. Test Procedure ................................................................................................................................ 14 4.5. Test Result ....................................................................................................................................... 14 5. POWER SPECTRAL DENSITY .......................................................................................................... 15 5.1. Limit ................................................................................................................................................... 15 5.2. Test Setup ........................................................................................................................................ 15 5.3. Spectrum Analyzer Setting ............................................................................................................ 15 5.4. Test Procedure ................................................................................................................................ 15 5.5. Test Result ....................................................................................................................................... 15 6. CONDUCTED BAND EDGE .............................................................................................................. 16 6.1. Limit ................................................................................................................................................... 16 6.2. Test Setup .........................................…

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Page 50 of 76 Report No.ESTE-R2407097 Appendix E: Band edge measurements Test Result Test Mode Antenna ChName Frequency[MHz] RefLevel[dBm] Result[dBm] Limit[dBm] Verdict BLE_1M Ant1 …

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