User Manual for FOSI AUDIO models including: ZK-1002, ZK-502C, ZK-502T, ZK-1002T, ZK-1002 Bluetooth 5.0 Stereo Audio Receiver Amplifier, Bluetooth 5.0 Stereo Audio Receiver Amplifier
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SUPPORT – Fosi Audio
User's Manual Fosi Audio Bluetooth Power Amplifier Board Contents Descripon 01 ----------- Quick steup for ZK-1002L/ZK-502L 01 Quick steup for ZK-1002/ZK-502C/ ZK-502T/ ZK-1002T 02 Quick steup for ZK-TB21 03 ZK1002 04 Introducon/ Product Parameters/ Package Includes 04 Product Overview/ Installaon 05 ZK1002L 06 Introducon/ Product Parameters/ Package Includes 06 Product Overview/ Installaon 07 ZK-502C 08 Introducon/ Product Parameters/ Package Includes 08 Product Overview/ Installaon 09 ZK-502L 10 Introducon/ Product Parameters/ Package Includes 10 Product Overview/ Installaon 11 ZK-502T 12 Introducon/ Product Parameters/ Package Includes 12 Product Overview/ Installaon 13 ZK-1002T 14 Introducon/ Product Parameters/ Package Includes 14 Product Overview/ Installaon 15 ZK-TB21 16 Introducon/ Product Parameters/ Package Includes 16 Product Overview/ Installaon 17 ---------- How to connect the speaker? 17 Note 17 Q&A 18 Warranty Informaon 19 Comparison 20 Fosi Audio Bluetooth Power Amplifier Board ZK-1002 /ZK-1002L /ZK-502C /ZK-502L /ZK-502T/ZK-1002T/ZK-TB21 User Guide Descripon This manual contains the introducon, installaon instrucons, and usage methods of five Fosi Audio Bluetooth amplifier boards. Please note that the product model you purchase needs to correspond to this part of the manual. If you have any quesons about how to use it, please feel free to contact us. These Fosi Audio HIFI audio amplifier boards are high-power stereo audio modules with filtering capabilies. 2 CH output and the built-in amplifier module, so it can be directly connected to passive speakers as an amplifier. Also, it is ideal for DIY wireless speakers and transponders. Quick steup for ZK-1002L/ZK-502L PC/Laptop Mobile Phone Bluetooth Connecon Bluetooth 5.0 Passive Speakers Speakers Output R+ R R- L+ L- L 01 Quick steup for ZK-1002/ ZK-502C/ ZK-502T/ZK-1002T 1/3 PC/Laptop 1/3 Mobile Phone 1 Blue-Ray/DVD/ CD Player 1 TV TV Audio Connecon 1 3.5MM AUX Input Bluetooth Connecon 3 Bluetooth 5.0 2 Passive Speakers 2 Speakers Output R+ R R- L+ L- L 2 Speakers Output R+ R R- L+ L- L 02 Quick steup for ZK-TB21 1/3 PC/Laptop 1/3 Mobile Phone 1 Blue-Ray/DVD/ CD Player 1 TV TV Audio Connecon 1 3.5MM AUX Input Bluetooth Connecon 3 Bluetooth 5.0 2 Passive Subwoofer 2 Passive Speakers 2 Speakers Output R+ R R- L+ L- L 2 Speakers Output R+ R R- L+ L- L 03 ZK-1002 Introducon ZK-1002 Bluetooth 5.0 2 Channel Stereo Amplifier Board has a maximum output of 100wa per channel. Use two TPA3116D2 chips to bring you great HIFI stereo sound quality. With two input methods, you can connect using Bluetooth or 3.5MM audio cable. Suitable for 4Ohm-8Ohm, 50wa-300wa 2 channel passive speakers. Product Parameters Model: ZK-1002 Chip: TPA3116D2*2 Input Mode: Bluetooth and 3.5mm AUX Work Voltage: DC 5V-27V (Above 2A) Channel: 2 CH Stereo Output Bluetooth version: Bluetooth 5.0 Bluetooth transmission distance: 50 Ft MAX Power Output: 100W x 2 Terminang Impedance: 4 Ohm-8 Ohm Match Speaker: 50wa-300wa Work Temperature:-40°C~85°C Work Humidity:0%~95%RH Size: 3.3 * 2 * 0.95 inch Weight: 0.28lb/130g DC socket: 5.5*2.1mm Package Includes: 1: ZK-1002 Stereo Bluetooth Power Amplifier Module * 1 2: Acrylic shell * 2 3: 16mm Copper column * 4 4: 9mm Screw * 8 5: Steel nut, screw mat * 1 6: 20cm power cable * 1 7: Screwdriver * 1 8: Knob * 1 04 Product Overview Installaon Step1- Install the boom acrylic shell Use the screwdriver to install the boom 4 counts 9mm screw to connect the copper column, amplifier board, and boom acrylic shell. Step2- Install the top acrylic shell Use the screwdriver to install the top 4 counts 9mm screw to connect the copper column and the top acrylic shell Step3- Install steel nut, screw mat, and knob. 1: Install the steel nut; 2: Install the screw mat; 3: Install the volume knob Adjust the volume switch in the OFF posion. Then insert the volume knob unl it fits perfectly with the steel nut. Note: There is a volume mark, you need to put the volume mark in the six o'clock posion to insert the volume knob. 05 ZK-1002L Introducon ZK-1002L Bluetooth 5.0 2 Channel Stereo Amplifier Board has a maximum output of 100wa per channel. Suitable for 4Ohm-8Ohm, 50wa-300wa 2 channel passive speakers. Product Parameters Model: ZK-1002L Input Mode: Bluetooth Work Voltage: DC 5V-24V (Above 2A) Channel: 2 CH Stereo Output Bluetooth version: Bluetooth 5.0 Bluetooth transmission distance: 50 Ft MAX Power Output: 100W x 2 Terminang Impedance: 4 Ohm-8 Ohm Match Speaker: 50wa-300wa Work Temperature:-40°C~85°C Work Humidity:0%~95%RH Size: 2.68 * 2.05 * 0.83 inch Weight: 0.26lb/120g DC socket: 5.5*2.1mm Product Overview 06 Package Parameter: 1: ZK-1002L Stereo Bluetooth Power Amplifier Module * 1 2: Acrylic shell * 2 3: 16mm Copper column * 4 4: 9mm Screw * 8 5: Steel nut, screw mat * 1 6: 20cm power cable * 1 7: Screwdriver * 1 8: Knob * 1 Installaon Step1- Install the boom acrylic shell Use the screwdriver to install the boom 4 counts 9mm screw to connect the copper column, amplifier board, and boom acrylic shell. Step2 - Install the top acrylic shell Use the screwdriver to install the top 4 counts 9mm screw to connect the copper column and the top acrylic shell. Step3- Install steel nut, screw mat, and knob 1: Install the steel nut; 2: Install the screw mat; 3: Install the volume knob: Adjust the volume switch in the OFF posion. Then insert the volume knob unl it fits perfectly with the steel nut. Note: There is a volume mark, you need to put the volume mark in the six o'clock 07 ZK-502C Introducon ZK-502C Bluetooth 5.0 2 Channel Stereo Amplifier Board has a maximum output of 50wa per channel. Use TPA3116D2 chip to bring you great HIFI stereo sound quality. With two input methods, you can connect using Bluetooth or 3.5MM audio cable. Suitable for 4Ohm-8Ohm, 50wa-200wa 2 channel passive speakers. Product Parameters Model: ZK-502C Input Mode: Bluetooth, AUX Work Voltage: DC 5V-27V(Above 2A) Channel: 2 CH Stereo Output Bluetooth version: Bluetooth 5.0 Bluetooth transmission distance: 50 Ft MAX Power Output: 50W x 2 Terminang Impedance: 4 Ohm-8 Ohm Match Speaker: 30wa-200wa Work Temperature:-40°C~85°C Work Humidity:0%~95%RH Size: 3.2 * 1.98 * 0.72 inch Weight: 0.24lb/111g DC socket: 5.5*2.1mm Product Overview 08 Product Parameters 1: ZK-502C Stereo Bluetooth Power Amplifier Module * 1 2: Acrylic shell * 2 3: 12mm Copper column * 4 4: 9mm Screw * 8 5: Steel nut, screw mat * 1 6: 20cm power cable * 1 7: Screwdriver * 1 8: Knob * 1 9: Heat sink * 1 Installaon Step1- Install the boom acrylic shell Use the screwdriver to install the boom 4 counts 9mm screw to connect the copper column, amplifier board, and boom acrylic shell. Step2- Install the heat sink Paste the heat sink to the chip posion of the Bluetooth amplifier board. Step3 - Install the top acrylic shell Use the screwdriver to install the top 4 counts 9mm screw to connect the copper column and the top acrylic shell. Step4- Install steel nut, screw mat, and knob 1: Install the steel nut; 2: Install the screw mat; 3: Install the volume knob: Adjust the volume switch in the OFF posion. Then insert the volume knob unl it fits perfectly with the steel nut. Note: There is a volume mark, you need to put the volume mark in the six o'clock posion to insert the volume knob. 09 ZK-502L Introducon ZK-502L Bluetooth 5.0 2 Channel Stereo Amplifier Board has a maximum output of 50wa per channel. Suitable for 4Ohm-8Ohm, 50wa-200wa 2 channel passive speakers. Product Parameters Model: ZK-502L Input Mode: Bluetooth Work Voltage: DC 5V-24V(Above 2A) Channel: 2 CH Stereo Output Bluetooth version: Bluetooth 5.0 Bluetooth transmission distance: 50 Ft MAX Power Output: 50W x 2 Terminang Impedance: 4 Ohm-8 Ohm Match Speaker: 30wa-200wa Work Temperature:-40°C~85°C Work Humidity:0%~95%RH Size: 2.17 * 1.5 * 0.67 inch Weight: 0.11lb / 52g DC socket: 5.5*2.1mm Product Overview 10 Package Contents 1: ZK-502L Stereo Bluetooth Power Amplifier Module * 1 2: Acrylic shell * 2 3: 14mm Copper column * 4 4: 8mm Screw * 8 5: Steel nut, screw mat * 1 6: 20cm power cable * 1 7: Screwdriver * 1 8: Knob * 1 Installaon Step1- Install the boom acrylic shell Use the screwdriver to install the boom 4 counts 4mm screw to connect the copper column, amplifier board, and boom acrylic shell. Step2 - Install the top acrylic shell Use the screwdriver to install the top 4 counts 4mm screw to connect the copper column and the top acrylic shell. Step3 - Install steel nut, screw mat, and knob 1: Install the steel nut; 2: Install the screw mat; 3: Install the volume knob: Adjust the volume switch in the OFF posion. Then insert the volume knob unl it fits perfectly with the steel nut. Note: There is a volume mark, you need to put the volume mark in the six o'clock posion to insert the volume knob. 11 ZK-502T Introducon ZK-502T Bluetooth 5.0 2 Channel Stereo Amplifier Board has a maximum output of 50wa per channel. Use TPA3116D2 chip to bring you great HIFI stereo sound quality. With two input methods and bass and treble control, you can connect using Bluetooth or 3.5MM audio cable. Suitable for 4Ohm-8Ohm, 50wa-200wa 2 channel passive speakers. Product Parameters Model: ZK-502T Input Mode: Bluetooth, AUX Work Voltage: DC 5V-24V(Above 2A) Channel: 2 CH Stereo Output Bluetooth version: Bluetooth 5.0 Bluetooth transmission distance: 50 Ft MAX Power Output: 50W x 2 Treble and bass control: Yes Terminang Impedance: 4 Ohm-8 Ohm Match Speaker: 15wa-100wa Work Temperature:-40°C~85°C Work Humidity:0%~95%RH Size: 3.7*2.76*0.83 inch Weight: 0.34lb/154g DC socket: 5.5*2.1mm Product Overview 12 Package Contents 1: ZK-502T Stereo Bluetooth Power Amplifier Module * 1 2: Acrylic shell * 2 3: 14mm Copper column * 4 4: 5mm Copper column mat* 4 5: 4mm Screw * 8 6: 20cm power cable * 1 7: Screwdriver * 1 8: Knob * 3 9: Heat sink * 1 Installaon Step1- Install the boom acrylic shell Use the screwdriver to install the boom 4 counts 4mm screw to connect the copper column, copper column mat, amplifier board, and boom acrylic shell. Step2 - Install the heat sink Paste the heat sink to the chip posion of the Bluetooth amplifier board. Step3 - Install the top acrylic shell Use the screwdriver to install the top 4 counts 4mm screw to connect the copper column and the top acrylic shell. Step4- Install the knob Adjust the volume switch to the OFF posion. Turn the treble control and bass control switch to the right unl the gain is minimal. Then insert the knob unl it completely fits the front panel. Note: All three knobs have a volume mark, you need to place the mark at the six o'clock posion of the knob and then insert the knob. 13 ZK-1002T Introducon ZK-1002T Bluetooth 5.0 2 Channel Stereo Amplifier Board has a maximum output of 100wa per channel. Use TPA3116D2 chip to bring you great HIFI stereo sound quality. With two input methods and bass and treble control, you can connect using Bluetooth or a 3. 5MM audio cable. Suitable for 40hm-80hm. 50wa-200wa 2 channel passive speakers. Product Parameters Model: ZK-1002T Input Mode: Bluetooth, AUX Work Voltage: DC 5V-24V Channel: 2 CH Stereo Output Bluetooth version: Bluetooth 5.0 Bluetooth transmission distance: 50 Ft MAX Power Output: 100Wx2 Treble and bass control: Yes Terminang Impedance: 4 Ohm-8 Ohm Match Speaker: 50wa-300wat Work Temperature:-40¥~85¥ Work Humidity: 0%~95%RH Size: 2.76*3.70*0.83 inch Weight: 0.37lb/170g DC socket: 5.5 2.1mm Product Overview 14 Package Contents 1 : ZK-1002T Stereo Bluetooth Power Amplifier Module * 1 2 : Acrylic shell * 2 3 : 14mm Copper column * 4 4 : 5mm Copper column mat * 4 5 : 4mm Screw * 8 6 : Screwdriver * 1 7 : Knob * 3 8 : 20cm power cable * 1 Installaon Step1- Install the boom acrylic shell Use the screwdriver to install the boom 4 counts 4mm screw to connect the copper column, copper column mat, amplifier board, and boom acrylic shell. Step2 - Install the heat sink Paste the heat sink to the chip posion of the Bluetooth amplifier board. Step3 - Install the top acrylic shell Use the screwdriver to install the top 4 counts 4mm screw to connect the copper column and the top acrylic shell. Step4- Install the knob Adjust the volume switch to the OFF posion. Turn the treble control and bass control switch to the right unl the gain is minimal. Then insert the knob unl it completely fits the front panel. Note: All three knobs have a volume mark, you need to place the mark at the six o'clock posion of the knob and then insert the knob. 15 ZK-TB21 Introducon ZK-TB21 Bluetooth 5.0 2.1 Channel Stereo Subwoofer Amplifier Board has a maximum output of 50wa per channel. Use TPA3116D2 chip to bring you great HIFI stereo sound quality. With two input methods and bass and treble control, you can connect using Bluetooth or a 3. 5MM audio cable. Suitable for 40hm-80hm. 50wa-200wa 2.1 channel passive speakers or subwoofer. Product Specificaons Model: ZK-TB21 Input Mode: Bluetooth, AUX Work Voltage: DC 12V-24V Channel: 2.1 CH Stereo Output Bluetooth version: Bluetooth 5.0 Bluetooth transmission distance: 50 Ft MAX Power Output: 50W*2cR&L+100WcSubwoofer Treble and bass control: Yes Terminang Impedance: 4 Ohm-8 Ohm Match Speaker: 50wa-300wat Work Temperature:-40¥~85¥ Work Humidity: 0%~95%RH Size: 3.94*3.94*0.9 inch Weight: 0.46lb/210g DC socket: 5.5 2.1mm Product Overview 16 Package Contents 1 : ZK-TB21 Stereo Bluetooth Power Amplifier Module * 1 2 : Acrylic shell * 2 3 : 14mm Copper column * 4 4 : 5mm Copper column mat * 4 5 : 4mm Screw * 8 6 : Screwdriver * 1 7 : Knob * 5 8 : Wire input socket * 1 9: 20cm power cable * 1 Installaon Step1- Install the boom acrylic shell Use the screwdriver to install the boom 4 counts 4mm screw to connect the copper column, copper column mat, amplifier board, and boom acrylic shell. Step2 - Install the heat sink Paste the heat sink to the chip posion of the Bluetooth amplifier board. Step3 - Install the top acrylic shell Use the screwdriver to install the top 4 counts 4mm screw to connect the copper column and the top acrylic shell. Step4- Install the knob Adjust the volume switch to the OFF posion. Turn the treble control and bass control switch to the right unl the gain is minimal. Then insert the knob unl it completely fits the front panel. Note: All three knobs have a volume mark, you need to place the mark at the six o'clock posion of the knob and then insert the knob. How to connect the speaker? Step1-Use the screwdriver to loosen the speaker terminals on the amplifier. Step2-Insert the speaker wires. Step3-Install the screws to secure the speaker wires. Note: Your home audio amplifier boards are not water-resistant, so it's important that they should be kept free of moisture. You should clean only with a dry cloth or ssue and no liquid cleaners or solvents should be used. 17 Q&A 1. How to choose a power supply? The power adapter for the amplifier board is important. Higher voltage and higher current will bring beer output power. If you use a 12V 1A power adapter, the amplifier board can only drive 3-4in speakers. If you use a 19V 5A or higher voltage power adapter, then it can drive 8-10in speakers. We recommend using a good power adapter to work with this amplifier board. NoteIf the power supply voltage is low, the concert will be distorted aer turning up the volume. If the current is low, it will not be able to drive your speakers, it may not work properly or the sound quality is not good. When this happens, please replace the larger power adapter. We recommend using a power adapter higher than 3A for 100wa x 2. 50wa x 2 is recommended to use a power adapter higher than 2A. 2. How to choose a speaker? Suitable for 4-8Ohm speakers. If your speaker power is 20wa-50wa, you can also use our power amplifier board, but the specificaon of the power adapter is preferably below 15V, in order to prevent the speaker from being burned aer turning up the volume. If your speaker power is 50wa-300wa, don't worry about anything. You can use a 19-24V power adapter, high voltage brings powerful output. 3. How to choose Bluetooth or AUX audio input mode? Connect the power adapter, Bluetooth amplifier board and speakers. Turn on the switch of the power amplifier board, the blue indicator light is on. Turn the audio knob to nine o'clock. Use your phone's Bluetooth to search for "BT-WUZHI", there will be a beep when the connecon is successful. The next me you use the Bluetooth amplifier board, it will automacally connect to your phone. Note: Please ensure if there another device has paired with this amplifier board. This amplifier board can only be paired with one Bluetooth device at the same me. If another device has paired with it, your device can not pair with it. If you use 3.5mm AUX input, you need to disconnect Bluetooth. Aer hearing the beep, insert the audio cable to play music. When using 3.5mm AUX input, if Bluetooth is connected, it will be converted to Bluetooth input. 18 4. The sound quality decreases aer turning up the volume. The power supply cannot drive the speaker. Please replace the power adapter with a higher voltage. 5. The sound is not smooth aer turning up the volume. The low current of the power adapter makes the intermient power failure protecon start. Please replace the power adapter with a higher current. Or long-me high-power output, the power amplifier board is overheated, and the overheat protecon of the power module is turned on. Turn down the volume or increase its heat dissipaon. About Fosi Audio Fosi Audio designs and builds innovave audio products with all your music in mind. Great sound, simple but elegant designs, high-quality materials, and truly useful features are what Fosi Audio is about. We sincerely hope you get as much enjoyment from our products as we've had to create them! Our website: www.fosiaudio.com Amazon store: www.amazon.com/fosiaudio Our Youtube channel: Fosi Audio Our Facebook page: Fosi Audio Whatsapp: +86 17722625601 Aer-sale Service and Technical Support Email: customer@fosiaudioshop.com fosiaudio@hotmail.com Warranty Informaon All Fosi Audio products have an 18-month limited warranty on parts and labor from the date of purchase. Please contact us if you have any problems. What Is Covered? All defecve parts or faulty workmanship. What Is Not Covered? The warranty doesn't cover damage caused by accident, misuse, abuse, neglect, excessive moisture, lightning, power surges, other acts of nature, unauthorized product modificaon or repairs, or failure to follow the instrucons outlined in this guide. 19 What We Will Do? We will repair or replace any defecve parts, at our opon, within a reasonable amount of me and free of charge any me during the warranty period. What We Ask From You? You will be responsible for shipping charges to Fosi Audio or to an authorized dealer. We recommend and you keep the original shipping materials to prevent shipping damage if service is needed. Fosi Audio cannot be responsible for any damages incurred during shipping due to poor packing, so please pack well and make sure to insure your shipment. Comparison Model ZK-1002 ZK-1002L ZK-502C ZK-502L ZK-502T ZK-1002T ZK-TB21 Channel 2.0CH 2.0CH 2.0CH 2.0CH 2.0CH 2.0CH 2.1CH Max Output Power Per 100 wa x2 100 wa x2 Channel Bass and Treble No No Control 50 wa x2 No 50 wa x2 No 50 wa x2 100 wa x2 50wa×2+ 100 wa x2 Yes Yes Yes Input ways Bluetooth 5.0 3.5mm AUX Bluetooth 5.0 Bluetooth 5.0 3.5mm AUX Bluetooth 5.0 Bluetooth 5.0 3.5mm AUX Bluetooth 5.0 3.5mm AUX Bluetooth 5.0 3.5mm AUX Work Voltage DC 5V-27V DC 5V-24V DC 5V-27V DC 5V-24V DC 9V-24V DC 5V-24V DC 12V-24V Size(inch) 3.3*2* 0.95 2.68*2.05* 3.2*1.98* 0.83 0.72 2.17*1.5* 3.94*3.94* 2.76*3.70* 3.94*3.94* 0.72 0.9 0.83 0.9 20 Fosi audio www.fosiaudio.com Amazon store: www.amazon.com/fosiaudio Our Facebook page: Fosi Audio Whatsapp: +86 17722625601 After-sale Ser vice and Technical Suppor t Email: customer@fosiaudioshop.com fosiaudio@hotmail.com Fosi audioAdobe PDF library 15.00 Adobe Illustrator 24.0 (Windows)