<div class="detailmodule_html"><div class="detail-desc-decorate-richtext"><table class="ke-zeroborder" width="100%" cellspacing="0" cellpadding="0" border="0" style="font-family:&quot;"> <tbody> <tr> <td> <p> <span style="color:#171A1D;font-family:&quot;font-size:14px;background-color:#FFFFFF;"></span> </p> <p> <br /> </p> <div style="padding:15px;border:1px solid #AEAEAE;"> <table border="0" cellpadding="0" cellspacing="0" style="border: 1px solid #c1c7d0;border-collapse:collapse;"><tr><td style="font-size: 14px;color: orange;font-weight: bold;border: 1px solid #c1c7d0;">(ZK-MT21 )--Amp Board</td></tr><tr><td style="border: 1px solid #c1c7d0;">ZK-MT21 2x50W+100W 2.1 Channel Subwoofer Digital Power Amplifier Board AUX 12V 24V Audio Stereo <span style="background-color:red;">Bluetooth</span>-compatible 5.0 Bass Amp for Home Theater Speaker<br /> Feature:<br /> The <span style="background-color:red;">Bluetooth</span>-compatible audio power amplifier module has 2.1 channels and the maximum output power is 2X50W+100W.<br /> It has two audio input modes, AUX and <span style="background-color:red;">Bluetooth</span>-compatible, and a two-in-one power amplifier board. <span style="background-color:red;">Bluetooth</span>-compatible5.0, higher transmission efficiency, longer transmission distance<br /> It has short-circuit protection, over-current, over-heating, and anti-reverse protection to prevent total failure. When an overload occurs, the device reports the fault condition to the processor to protect itself from damage<br /> It adopts copper DC connectors and barrier terminals. It can withstand high current without heating or damaging wires.<br /> Classic appearance multi-function main knob. The main knob adopts a rotary encoder that is only used in high-end power amplifiers, which realizes 360-degree stepless tuning and a smooth one-key start and stop. The operation is simple and convenient by long pressing the switch.<br /> With bass, treble, subwoofer frequency and volume control, you can easily adjust the volume and enjoy the music tone you want. It is widely used in shopping malls, home theaters, speakers, etc.<br /> <br /> Specification:<br /> Product name: 2.1 channel <span style="background-color:red;">Bluetooth</span>-compatible audio power amplifier module<br /> Product model: ZK-MT21<br /> <span style="background-color:red;">Bluetooth-compatible</span> version: 5.0 (unobstructed, 15 meters)<br /> Input sensitivity: 500mV<br /> Input method: AUX+ <span style="background-color:red;">Bluetooth</span>-compatible<br /> Number of channels: 2.1 channels<br /> Power amplifier chip: Domestic power amplifier chip<br /> Adapter power supply: above DC12-24V/5A (24V battery pack is not allowed)<br /> Adapted speakers: 20-100W, 4-8Q<br /> Output power: left and right channels &lt;50W; subwoofer &lt;100W<br /> Protection mechanism: Anti-reverse connection, overheating, overcurrent, short circuit protection<br /> Product size: 93mm*90mm*22mm<br /> Product weight: about 130g<br /> <br /> Notice:<br /> The product can be connected with an external antenna, but does not include an antenna and an antenna base, please purchase it separately.<br /> Tip: Only when the audio input is enough and the power supply voltage/current is enough, there will be enough output power!!!<br /> The higher the power supply voltage, the greater the output power, and the smaller the speaker impedance, the greater the output power!!! Please make sure that the power of the adapted power supply is greater than the actual working power of the amplifier!!!<br /> <br /> Note:<br /> Due to the different monitor and light effect, the actual color of the item might be slightly different from the color showed on the pictures. Thank you!<br /> Please allow 1-2cm measuring deviation due to manual measurement.</td></tr><tr><td style="font-size: 14px;color: orange;font-weight: bold;border: 1px solid #c1c7d0;">(ZK-TB21 CS8673E /ZK-TB21 TPA3116D2 )--Board</td></tr><tr><td style="border: 1px solid #c1c7d0;"><span style="color:black;font-family:inherit;font-size:12px;">ZK-TB21 2x50W+100W Stereo Audio Receiver Amplifier Board CS8673E/TPA3116D2 Chip Speaker DIY Module With Filter Bluetooth-compatible 5.0<br /> <strong>Feature:</strong><br /> <strong>1. Two Chip Options:</strong> Domestic chip CS8673E, efficient, good distortion and anti popping, transparent sound quality, and strong driving force; Imported chip solution TPA3776D2 with AM interference suppression function; The output has a filter, pure HIFI fever sound quality, and low requirements for speakers<br /> <strong>2. Bluetooth-compatible Audio Amplifier Module:</strong> 2.1 channels, maximum output power 2X50W+100W, with two audio input methods: AUX and Bluetooth-compatible, and a 2-in-1 amplifier board. Bluetooth-compatible 5.0, higher transmission efficiency and longer transmission distance<br /> <strong>3. Knob Adjustment: </strong>The main knob adopts a rotary encoder only used in high-end power amplifiers, achieving 360 degree stepless tuning. Smooth touch, one click start stop, long press on/off operation is simple and convenient; Easily adjust the volume and enjoy the music sound you want. Widely used in shopping malls, home theaters, speakers, etc<br /> <strong>4. Multiple Protection:</strong> Equipped with short circuit protection, overcurrent, overheating, and anti reverse connection protection to prevent comprehensive failure. When an overload occurs, the device reports the fault situation to the processor to protect itself from damage. Copper DC connectors and barrier terminals are used. Can withstand high currents, does not generate heat, and does not damage wires.<br /> <strong>5. Heat Dissipation Mechanism: </strong>Special 50x25x10mm large-area heat dissipation fins are used, and copper coating is tightly attached to the shell for heat dissipation. The heat dissipation area is multiplied to ensure the high performance operation of the product with sufficient power.</span><br /><br/><br/><span style="color:black;font-family:inherit;font-size:12px;"><strong>Specification:</strong></span><br /> <span style="color:black;font-family:inherit;font-size:12px;">Origin: Mainland China</span><br /> <span style="color:black;font-family:inherit;font-size:12px;">Power amplifier chip: TPA3116D2, CS8673E (optional)<br /> TPA3116D2 chip: with filter and AM interference suppression function<br /> Bluetooth-compatible version: 5.0 (unobstructed, 10 meters)<br /> Input sensitivity: 500mV<br /> Input method: AUX+Bluetooth-compatible<br /> Number of channels: 2.1 channels<br /> Adapted power supply: DC12~24V/5A or above (higher voltage, higher output power) Adapted speaker: 20~100W, 4~8 Ω<br /> Output power: Left and right channels ≤ 50W; Subwoofer ≤ 100W<br /> Protection mechanism: overvoltage, undervoltage, overheating, DC detection, short circuit protection<br /> Heat sink size: About 50x25x10mm/1.96x0.98x0.39inch<br /> Amplifier board size: About 118x100x22mm/4.64x3.93x0.86inch<br /> Product weight: About 190g<br /> Tip: Only when the audio input is sufficient and the power supply voltage/current is sufficient can there be sufficient output power. The higher the power supply voltage, the greater the output power, and the smaller the horn impedance, the greater the output power.<br /> Please ensure that the power of the adapter power supply is greater than the actual working power of the amplifier.</span><span style="color:black;font-family:inherit;font-size:12px;"></span><br /> <br /> <p style="color:black;font-family:inherit;font-size:12px;"> <strong>Note:</strong><br /> Due to the different monitor and light effect, the actual color of the item might be slightly different from the color showed on the pictures. Thank you!<br /> Please allow 1-2cm measuring deviation due to manual measurement. </p></td></tr><tr><td style="font-size: 14px;color: orange;font-weight: bold;border: 1px solid #c1c7d0;">(ZK-502M)--Audio Board</td></tr><tr><td style="border: 1px solid #c1c7d0;">ZK-502M Mini Bluetooth-Compatible 5.0 Power Audio Amplifier Board 50WX2 Stereo Music Amplificad Module Home Theater AUX&nbsp;&nbsp;<br /> Feature:<br /> Large volume heat sink, 20x18x10mm<br /> Protection mechanism: overheating, overcurrent and short circuit protection<br /> Supported audio input: Bluetooth-Compatible 5.0, aux, USB flash disk, computer USB (USB flash disk file system must be fat 32, and the maximum support is 32GB)<br /> Supported audio output: active speaker, passive speaker (only one of passive speaker and active speaker can be selected)<br /> The power supply cannot be connected to 24V battery pack (the actual maximum voltage of 24V battery is about 28V).<br /> <br /> Specification:<br /> Type of product: ZK-502M<br /> Chip scheme: domestic power amplifier chip<br /> Audio input: Bluetooth +AUX+U disk+computer USB (plug and play)<br /> Adaptive power supply: DC5-24V (high voltage is recommended for high power)<br /> Adapted horn: 10-100W; 4-8Q<br /> Number of channels: left and right channels (stereo)<br /> Bluetooth version: 5.0 (&gt; 15m, without occlusion)<br /> Bluetooth name: Wuz hi Audio<br /> Dimensions: 60x60x29mm<br /> Product weight: about 60g<br /> Power supply voltage: 12v-8W /12W+12W, 4W/20W+20W<br /> 15V-8 ohms /18W+18W, 4 ohms /30W+30W<br /> 19V-8 ohms /30W+30W, 4 ohms /40W+40W<br /> 24V-8 ohms /40W+40W, 4 ohms /50W+50W<br /> <br /> Note:<br /> 1. Only when the audio input is sufficient and the power supply / current is sufficient can there be sufficient output power. The higher the power supply voltage, the greater the relative power, and the speakers with different impedance will have different output power. When the voltage and current are sufficient, the greater the number of ohms of the horn, the smaller the relative sound power. Please pay attention!<br /> 2. Due to the different monitor and light effect, the actual color of the item might be slightly different from the color showed on the pictures. Thank you!<br /> 3. Please allow 1-2cm measuring deviation due to manual measurement.<br /></td></tr><tr><td style="font-size: 14px;color: orange;font-weight: bold;border: 1px solid #c1c7d0;">(ZK-502L)--Amp Board</td></tr><tr><td style="border: 1px solid #c1c7d0;">ZK-502L 2x50W Mini Dual Channel Speaker Digital Power Amplifier Board Wireless Audio Stereo Bluetooth-compatible 5.0 Amp<br /> Feature:<br /> Bluetooth-compatible5.0 version, with higher transmission efficiency and longer transmission distance.<br /> The potentiometer adjusts the volume, with a switch, it is convenient to control the volume, which is very suitable for DIY speakers.<br /> Capacitor 470uf35V solid capacitor, to ensure the power storage and heat dissipation capacity, stable and continuous power supply is a prerequisite for good sound quality.<br /> The copper DC connector is used, which can withstand high current and does not generate heat.<br /> The DC head lead wire is compatible with the input power interface of this product. Even if you don't have a DC head adapter or battery, you can easily wire it.<br /> Notice! The shell is a material package, you need to assemble it yourself, and a screwdriver is provided in the material package.<br /> <br /> Specification:<br /> Model: ZK-502L<br /> Bluetooth-compatible version: 5.0<br /> Material: Fiberglass board and electronic components<br /> Adaptation power supply voltage: 5-24V (9/12/15/18/24V adapter is optional, high-voltage is recommended for high-power)<br /> Adapter speaker: 30-200W, 4Ω, 8Ω<br /> Number of channels: left and right stereo (stereo)<br /> Bluetooth-compatible transmission distance: 15m (unobstructed)<br /> Protection mechanism: self-recovery overheating protection, self-recovery short-circuit protection<br /> Colour: Black<br /> Weight: 50 grams<br /> Dimensions: 55 x 38 x 17mm/2.17x 1.50 x 0.67in<br /> <br /> Precautions:<br /> The power switch on the board is a standby switch. After the switch is turned off, the machine is in a low-power standby state. To completely turn off the power or unplug the DC plug on the machine if it is not used for a long time.<br /> <br /> Question answers:<br /> 1. How to choose the power source?<br /> The board's power supply is crucial.The higher the voltage, the greater the current, the more power output, if you only have 12V 1A, this can carry 3-4 inch speakers.If you are above 19V 5A, with 8-10 inches no problem, power must be highly regarded.If the voltage is too low, the sound will easily cause distortion after amplification. If the current is too low to carry the speaker, the voltage will be pulled down, and the work will be abnormal or the sound quality will be poor.<br /> It is recommended to use 18V19V24V power supply with current above 5A.If you only have 9V12V or 1A 2A power supply, you can also use it with low power. Be careful when using it at the maximum volume, it may cause distortion and affect the sound quality.<br /> 2. How to choose the speaker?<br /> Common speakers are usually 8 ohms, can not distinguish between positive and negative polarity, the effect is the same, 4 ohms can also be used.If your horn power is small, it may be between 10W and 30W can also be used. The power supply voltage is small to prevent the speaker from burning down after playing loudly. For example, choose the power supply below 15V.If you are a 50W-300W speaker, don't worry about the speaker burning problem, you can choose a 12-24v power supply, the higher the selected voltage, then the greater the output sound or power.<br /> 3. How to connect Bluetooth-compatible?<br /> Power up the power amplifier board, connect to the speaker, rotate the audio knob indicator light, turn on the phone Settings -- Bluetooth-compatible -- search to "bt-wuzhi", and then click connect, after connecting successfully, there will be ding dong prompt sound, at this time for Bluetooth-compatible mode, play music can, next time on the power will automatically connect.<br /> 4. It's okay if the voice is small, but when the voice becomes louder, the voice becomes muddy?<br /> The sound is distorted, please change to a higher voltage adapter power supply.<br /> 5. It's okay if the voice is small, but when the voice becomes louder, the voice freezes?<br /> The input power is insufficient, and the power supply itself is protected against intermittent power failure. Please replace it with a higher-power power supply; or if the power is too large, the power amplifier board generates serious heat and thermal protection occurs. Reduce power usage or enhance heat dissipation.<br /> <br /> Note:<br /> Due to the different monitor and light effect, the actual color of the item might be slightly different from the color showed on the pictures. Thank you!<br /> Please allow 1-2cm measuring deviation due to manual measurement.</td></tr><tr><td style="font-size: 14px;color: orange;font-weight: bold;border: 1px solid #c1c7d0;">(ZK-502MT )--Subwoofer Module</td></tr><tr><td style="border: 1px solid #c1c7d0;">ZK-502MT 2x50W 2.0 Channel Subwoofer Amplifier Board Stereo Audio Speaker Module High Power Bluetooth-Compatible Bass Accessory<br /> Feature:<br /> Bluetooth-compatible audio amplifier module 2.0 dual-channel stereo output, maximum output power of 2X50W<br /> AUX and Bluetooth-compatible audio input mode, two in one power amplifier board. Bluetooth-compatible 5.0, transmission efficiency is higher, transmission distance is longer<br /> Adopt domestic chip program, output audio without filtering, standard sound quality<br /> With short circuit protection and over current, over heat, anti-reverse connection protection, to prevent comprehensive failure. When an overload occurs, the device reports the failure to the processor to protect itself from damage<br /> Use copper DC connector and fence terminal. Can withstand large current, do not heat, do not damage the wire.<br /> With bass, treble, subwoofer frequency and volume control, easily adjust the volume, enjoy the music you want to sound. Widely used in shopping malls, home theaters, speakers and so on<br /> <br /> Specification:<br /> Model: ZK-502MT<br /> Bluetooth-compatible Version: 5.0(no occlusion, 15m)<br /> SNR: &gt;90dB<br /> Input mode: AUX+ Bluetooth-compatible<br /> Number of channels: left and right double channels (stereo)<br /> Power amplifier chip: domestic power amplifier chip<br /> Adaptive power supply: DC9~24V/ above 3A (24V battery pack cannot be connected)<br /> Adapter horn: 15~100W, 4~8Q<br /> Supply voltage:<br /> 12V-----8 ohm /12W+12W, 4 ohm /20W+20W<br /> 15V-----8 ohm/18W +18W, 4 ohm/30W +30W<br /> 19V-----8 ohm/30W +30W, 4 ohm/40W +40W<br /> 24V----8 ohm/40W +40W, 4 ohm/50W +50W<br /> Protection mechanism: overheat, overcurrent, short circuit protection<br /> Size: 89mm*60mm*21mm/3.5X2.4X0.8in<br /> Weight: about 111g(including packaging)<br /> <br /> Tip:<br /> Only when the audio input is enough and the power supply voltage/current is enough will there be enough output power!!<br /> The higher the power supply voltage, the greater the output power, the smaller the horn impedance, the greater the output power!!<br /> Please ensure that the adapter power is greater than the actual working power of the amplifier!!<br /> <br /> Note:<br /> Due to the different monitor and light effect, the actual color of the item might be slightly different from the color showed on the pictures. Thank you!<br /> Please allow 1-2cm measuring deviation due to manual measurement.<br /></td></tr><tr><td style="font-size: 14px;color: orange;font-weight: bold;border: 1px solid #c1c7d0;">(ZK-1002T)--Subwoofer Module</td></tr><tr><td style="border: 1px solid #c1c7d0;">ZK-1002T AUX+Bluetooth-Compatible Amplifier Board HIFI 2.0 Channel 100Wx2 Audio Module Stereo Subwoofer Speaker Treble Bass Accessory<br /> Feature:<br /> Bluetooth-compatible audio amplifier module 2.0 dual-channel stereo output, maximum output power 2X100W<br /> AUX and Bluetooth-compatible audio input mode, two in one power amplifier board. Bluetooth-compatible 5.0, transmission efficiency is higher, transmission distance is longer<br /> With short circuit protection and over current, over heat, anti-reverse connection protection, to prevent comprehensive failure. When an overload occurs, the device reports the failure to the processor to protect itself from damage<br /> Use copper DC connector and fence terminal. Can withstand large current, do not heat, do not damage the wire.<br /> Adopt professional 36MM*25MM*10MM large area heat sink. Close to the shell of copper heat dissipation, heat dissipation area doubled, to ensure the full power of the product high-performance operation.<br /> With bass, treble, subwoofer frequency and volume control, easily adjust the volume, enjoy the music you want to sound. Widely used in shopping malls, home theaters, speakers and so on<br /> <br /> Specification:<br /> Model: ZK-1002T<br /> Bluetooth-compatible Version: 5.0(no occlusion, 10m)<br /> SNR: &gt;90dB<br /> Input mode: AUX+ Bluetooth-compatible<br /> Number of channels: left and right double channels (stereo)<br /> Power amplifier chip: TPA3116D2(with AM interference suppression function)<br /> Adaptive power supply: DC12~24V/5A or above (the higher the voltage, the higher the output power)<br /> Adapter horn: 20~200W, 4~8<br /> Output power:<br /> 20W*2 12V, 8 ohms; 35W*2 12V, 4ohm<br /> 35W*2 19V, 8 ohms; 60W*2 19V, 4ohm<br /> 50W*2 24V, 8 ohms; 100W*2 times 24V, 4ohm<br /> Protection mechanism: overvoltage, undervoltage, overheat, DC detection, short circuit protection<br /> Size: 110mm*70mm*21mm/4.3X2.8X0.83in<br /> Weight: 161g(including packaging)<br /> <br /> Tip:<br /> Only when the audio input is enough and the power supply voltage/current is enough will there be enough output power!!<br /> The higher the power supply voltage, the greater the output power, the smaller the horn impedance, the greater the output power!!<br /> Please ensure that the adapter power is greater than the actual working power of the amplifier!!<br /> <br /> Note:<br /> Due to the different monitor and light effect, the actual color of the item might be slightly different from the color showed on the pictures. Thank you!<br /> Please allow 1-2cm measuring deviation due to manual measurement.<br /></td></tr><tr><td style="font-size: 14px;color: orange;font-weight: bold;border: 1px solid #c1c7d0;">(ZK-HT21)--Digital Amplifier Module </td></tr><tr><td style="border: 1px solid #c1c7d0;"><span style="color:black;font-family:inherit;font-size:12px;">ZK-HT21 Digital Power Amplifier Board Module with Subwoofer TDA7498E Stereo Power Amplifier Module DC15-36V 160WX2+220W AUX/USB Input 2.1 Channel HiFi Bluetooth-Compatible<br /> <strong>Feature:</strong><br /> <strong>1. Powerful Amplifier Chip: </strong>Digital amplifier module built-inTDA7498Echip ,it can provide high-quality sound with low distortion due to the powerful amplifier chip.The TDA7498E chip ensures that you can enjoy music with clear, rich, and dynamic sound.<br /> <strong>2. Multiple Protection Mechanisms:</strong> With multiple protection mechanisms of audio power amplifier module, you can be sure that your device and&nbsp;speakers are protected at all times.anti-reverse, undervoltage, overheating, overcurrent, short circuit protection<br /> <strong>3. Versatile Usage:</strong> Digital power amplifier board module can be used in a wide range of settings, including at home, in the car, and during outdoor activities.<br /> <strong>4. Long-Lasting Silent Fan Technology:</strong>&nbsp;The silent fan of stereo power amplifier module can ensure that the amplifier stays cool and operates smoothly, even during extended use.The long-lasting silent fan technology also ensures that you don't have to deal with any distracting noises while enjoying your favorite tunes.<br /> <strong>5. Easy To Use:&nbsp;</strong>The user-friendly design ensures that you can start enjoying high-quality audio without any hassle.<br /> </span><br /><br/><br/><span style="color:black;font-family:inherit;font-size:12px;"><strong>Specification:</strong></span><br /> <span style="color:black;font-family:inherit;font-size:12px;">Certification: NONE</span><br /> <span style="color:black;font-family:inherit;font-size:12px;">Origin: Mainland China</span><br /> <span style="color:black;font-family:inherit;font-size:12px;">Compatible Audio &amp; Video Equipment Style: Amplifier</span><br /> <span style="color:black;font-family:inherit;font-size:12px;">Model Number: Digital Amplifier Module</span><br /> <span style="color:black;font-family:inherit;font-size:12px;">Weight: 390.00 g</span><br /> Product model: ZK-HT21<br /> Suitable for <span>Bluetooth-Compatible&nbsp;</span>version: 5.0 (accessible, 15 meters)<br /> Input method: AUX+for <span>Bluetooth-Compatible&nbsp;</span>+USB (dial button for switching modes and songs)<br /> Number of channels: 2.1 channels (left channel+right channel+subwoofer)<br /> Amplifier chip: TDA7498E<br /> Adapter power supply: DC15-36V (undervoltage protection below 9V, can also support 12V power supply)<br /> Adaptive speaker: 30-200W, 4-8 Ω<br /> Output power: left and right channels ≤ 160w, subwoofer ≤ 220w<br /> Protection mechanism: anti reverse connection, undervoltage, overheating, overcurrent, short circuit protection<br /> Product size: approximately 145x126x28mm/5.70x4.96x1.10inch<br /> Tip: When the audio signal input is large enough and the power supply voltage/current is large enough, there will be sufficient output power!<br /> The higher the power supply voltage, the greater the output power, the smaller the speaker impedance, and the greater the output power! Please ensure that the power of the adapter is greater than the actual working power of the amplifier<br /> <br /> <p style="color:black;font-family:inherit;font-size:12px;"> <strong>Note:</strong><br /> Due to the different monitor and light effect, the actual color of the item might be slightly different from the color showed on the pictures. Thank you!<br /> Please allow 1-2cm measuring deviation due to manual measurement. </p> <span style="color:black;font-family:inherit;font-size:12px;"></span><br /></td></tr></table><br /> </div> <br /> <div> </div> <div style="padding:15px;border:1px solid #AEAEAE;"> <table border="0" cellpadding="0" cellspacing="0" style="border: 1px solid #c1c7d0;border-collapse:collapse;"><tr><td style="border-right: 1px solid #c1c7d0;">Product</td><td>Included</td></tr><td style="border: 1px solid #c1c7d0;">ZK-MT21 ：</td><td style="border: 1px solid #c1c7d0;">1 X Power Amplifier Board<br /> 1 X Accessory Pack</td></tr><td style="border: 1px solid #c1c7d0;">ZK-TB21 CS8673E ：</td><td style="border: 1px solid #c1c7d0;">1 x Audio Amplifier Board<br /></td></tr><td style="border: 1px solid #c1c7d0;">ZK-TB21 TPA3116D2 ：</td><td style="border: 1px solid #c1c7d0;">1 x Audio Amplifier Board<br /></td></tr><td style="border: 1px solid #c1c7d0;">ZK-502M：</td><td style="border: 1px solid #c1c7d0;"><span>1 x Audio Amplifier Board Set</span><br /> <br /></td></tr><td style="border: 1px solid #c1c7d0;">ZK-502L：</td><td style="border: 1px solid #c1c7d0;">1 X Power Amplifier Board Set<br /> 1 X Material Package</td></tr><td style="border: 1px solid #c1c7d0;">ZK-502MT ：</td><td style="border: 1px solid #c1c7d0;">1 x&nbsp;Subwoofer Amplifier Board (with Accessory Bag)</td></tr><td style="border: 1px solid #c1c7d0;">ZK-1002T：</td><td style="border: 1px solid #c1c7d0;">1 x&nbsp;Subwoofer Amplifier Board (with Accessory Bag)</td></tr><td style="border: 1px solid #c1c7d0;">ZK-HT21：</td><td style="border: 1px solid #c1c7d0;">1 x&nbsp;Digital Amplifier Module&nbsp;</td></tr></table><br /> </div> <br /> <div style="text-align:center;"> </div> <br /> <br /> </td> </tr> </tbody> </table></div></div>