AIYIMA A07 TPA3255 Power Amplifier, upgrade opamps...2 opa1656 best sounding for 07, after Spakos labs opamps. ... heat dissipation improvements using 4mm thermal pad over the heat sink to trasmit heat to the metal body and prolong life of components. Power supply 32v 5a.

?NOTE : Postal Codes Areas That Cannot Be Shiped To: JE, GY, AB, TR, BT Description: TPA3255 Audio Digital Amplifier High Power 315W + 150W DC24-40V HiFi Class D Amplifier AMP Board Description: 1. TPA3255 is a high-performance class D power amplifier, it has class D efficiency and can bring true high-end sound quality. The device features advanced integrated feedback design and proprietary high-speed gate driver error correction function (PurePath Ultra HD). 2. This technology allows the device to maintain ultra-low distortion throughout the audio frequency band while exhibiting perfect sound quality. The device works in AD mode. When the THD is 10%, it can drive up to 2 315W/4R loads and 2 150W (unclipped power)/8R loads, and has a 2 VRMS analog input interface that supports high-performance DAC (For example, TIs PCM5242) seamless connection. 3. In addition to excellent audio performance, TPA3255 also has two major advantages: high power efficiency and ultra-low power level idle loss (less than 2.5W). This can be achieved with an 85mR MOSFET and an optimized gate driver scheme. Compared with the traditional discrete implementation, this solution can significantly reduce idle loss. Specification: Working mode: Level D Standby current: 80mA Work efficiency: > 90% Channel: 2.0 Rest / mute: short circuit mute function Output power: 315W/ 4 ?, distortion 10% 185W/ 8 ?, distortion 10% 260W / 4 ?, distortion 1% 150W / 8 ?, distortion 1% Frequency response: 20Hz to 20KHz Dynamic range: > 100 dB Signal to noise ratio: (SNR) > 111db Working voltage: dc24-40v switching power supply (recommended voltage: 36V) Product size: 110 * 70 * 36.5mm Product weight: 160g Package size: 110 * 70 * 36.5mm Packing weight: 160g Product details: 1. Use original TPA3255 2. The computing end uses the replaceable DIP-8 op amp *2, and buyers can upgrade the computing model independently. This product uses 2 TI high-performance audio operational amplifiers NE5532P 2. The main filter electrolytic capacitor adopts Nichicon capacity 2200UF/63V*2, 6 Nichicon FW series 10UF golden audio input coupling capacitors. Other filter capacitors use Nichicon series. 3. Adopt SAGAMI 7W14A inductor for audio digital class D amplifier to ensure the sound is clear and powerful. Note: 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! Please allow 1-2cm measuring deviation due to manual measurement. Included: 1 X Power Amplifier Board 1 X Signal Line pictures payment We accept PayPal only. All major credit cards are accepted through secure payment processor PayPal. Payment must be received within 7 business days of auction closing. If you have bought multiple items from me, you can send me one payment for all the items instead of paying for them individually. When you click the Pay Now button, eBay will automatically determine if there are other items you have won or purchased from me and will combine them for your review. Refunds are normally issued with 2 working days. If you have any special requests, please send us a message before making the payment. NOTE: Import duties, taxes and chargers are not included in the item price or shipping charges. These charges are the buyers responsibility. Please check with your countrys customs office to determine what these additional costs will be prior to bidding buying. Warranty 12 months Warranty. Buy with confidence! If you are not satisfied when you receive your item, please return it within 14 days for a replacement or money back. If item is defective in 3 months, We will send you a replacement without extra charger, or offer refund after we receive the defective item. If item is defective after 3 months, you can still send it back to us. We will send you a new one after receiving the defective item. But you have to pay the extra shipping fee. Shipping We ship from the item location. Items will be shipped within 1-4 business day(S) after payment completed received. NOTE: Please check the parcel before sign for it, If any problem with the parcel please mark on the signature that Damaged when received when signing it. Thank you. policies We are not responsible for any custom duty or import tax. We will leave POSITIVE FEEDBACK after receiving the payment. All messages will be answered within 1 business day. If you do not receive our reply, please kindly re-sent your message and we will reply to you as soon as possible. Serious Buyer Only! Please place bid only if you agree with all the terms. If you have any problems or concerns whatever with your order or products, please message us and give us a chance to assist you before you leave any feedback. We believe we can produce a positive outcome to any situation and will work hard to earn your praise. If you were pleased with this transaction, Please give us 5 star rating, thanks! Contact Us Our office hours are 9:00 a.m to 6:00 p.m (GMT +8) of Monday to Saturday. And our Office is closed on Sunday and public holidays. We apologize for the late reply during the holidays. On 04/05/2023 at 20:53:09 AEST, seller added the following information:

TPA3255 2.0 Digitale VerstäRker Platine DC24-48V Leistung 300W + 300 S5B1 Das Computerende verwendet den austauschbaren DIP-8-Operationsverstärker x2, und Käufer können das Computermodell unabhängig aufrüsten. Dieses verwendet 2 Hochleistungs-Audio-Operationsverstärker von TI NE5532PDer Hauptfilter-Elektrolytkondensator verwendet eine -Kapazität von 2200UF/63V x 2, 6 goldene Audioeingangskopplungskondensatoren der FW-Serie 10UF. Andere Filterkondensatoren verwenden die -Serie.Verwenden Sie die SAGAMI 7W14A-Induktivität für einen digitalen Audioverstärker der D, um sicherzustellen, der klar und kraftvoll ist.Farbe: wie abgebildetMaterial: elektronische BauteileVerpackungsinhalt:1 x digitale Verstärkerplatine

TPA3255 2.0 Digital Amplifier Board DC24-48V Strong 300W + 300W Class D Dig C3H1 The computing end uses the replaceable DIP-8 op amp x2, and can upgrade the computing model independently. This product uses 2 TI high-performance audio operational amplifiers NE5532PThe electrolytic capacitor adopts capacity 2200UF/63V x 2, 6 FW series 10UF golden audio input coupling capacitors. Other filter capacitors use series.Adopt SAGAMI 7W14A inductor for audio digital class D amplifier to the sound is clear and powerful.colour: as shownMaterial: electronic componentsPackage Contents:1 x Digital Amplifier BoardOnly the above package content, other products are not included.Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.

Aiyima A07 Texas Instruments TPA3255 (This is New 2023 longer heatsink better cooling edition) This is Brand new Boxed from factory and works however upon first run spotted a issue > the potentiometer ( volume control ) tends to control mostly one channel, upon few turn to full it pick up both channel. Maybe needs a bit of grease or perhaps a new potentiometer. Hence selling for someone with knowledge to repair or use as it is at a discounted price. Amp only.

Aiyima A07 Texas Instruments TPA3255 (This is New 2023 longer heatsink better cooling edition) This is Brand new Boxed from factory and works however upon first run spotted a issue > the potentiometer ( volume control ) has a fault as it tends to control one channel, upon few turn to full it can pick up both channel. Maybe needs a bit of grease or perhaps a new potentiometer. Hence selling for someone with knowledge to repair or use as it is at a discounted price. Amp only.

TPA3255 4 Kanal Digital Class D LeistungsverstäRker 315W Heimkino DIY SounG7D7 1. Nehmen Sie denimportierten TPA3255-Chip an2. Der Hauptfilter-Elektrolytkondensator hat eine Kapazität von 470 UF / 50 V x 4, eine für kontinuierliche Stromversorgung gewährleistet.3. Der Widerstand verwendet hochpräzise Chip-Widerstände, um ein gutes Signal-Rausch-Verhältnis zu gewährleisten.4. Verwenden Sie eine spezielle Induktivität für Audio, um sicherzustellen, der klar und kraftvoll ist.5. PCB verwendet eine 1,6 mm dicke doppelseitige Platine, eine Kupferdicke von 2,0 Unzen und einen vollständigen Zinnsprühprozess, um eine gute Durchgangsleistung bei großen und kleinen Strömen zu gewährleisten. Erstklassige Leiterplattenqualität.Beschreibungen:TPA3255 Vierkanal-Digital-Class-D-VerstärkerplatineTPA3255 ist ein Hochleistungs-Class-D-Leistungsverstärker mit Class-D-Effizienz und echter High-End-Klangqualität. Es gibt ein fortschrittliches integriertes Feedback-Design und eine proprietäre Hochgeschwindigkeits-Gate-Treiber-Fehlerkorrekturfunktion. Diese Technologie ermöglicht es dem Gerät, über das gesamte Audiofrequenzband eine extrem geringe Verzerrung bei gleichzeitig perfekter Klangqualität beizubehalten.Grundlegende Leistungsparameter:Arbeitsweise: DRuhestrom: 150 mAArbeitseffizienz:. Größer als 90%Ausgangsleistung:315W / 4ohm, Verzerrung 10% x 4185W / 8ohm, Verzerrung 10% x 4260W / 4ohm, Verzerrung 1% x 4150W / 8ohm, Verzerrung 1% x 4Frequenzgang: 20Hz 20KHzDynamikbereich: Größer als 100 dBSignal-Rauschabstand: () Größer als 111dBBetriebsspannung: DC24-48V Schaltnetzteil (DC) (Es wird empfohlen, DC36V Schaltnetzteil zu verwenden. Wenn die Temperatur von der Kühler der Leistungsverstärkerplatine mit DC48V-Stromversorgung wird sein, Sie müssen die Lüfterkühlung erhöhen)Material:ABS

TPA3255 Amplifier Board Response High Plug Play Metal Practical Audio AmplI8Y4 The amplifier board features and high frequency, which has stable performance.Adopting class D intelligent chip, the amplifier board has pure and dynamic sound effect.Made of metal and plastic, the amplifier board is -friendly and durable to use.The length of the amplifier board is 11cm, width is 7cm and thickness is 3.5cm.The amplifier board is suitable for being used in speaker, radio and so on.Item Name: Amplifier BoardModel: TPA3255Working : Class DStandby Current: 80mAWork Efficiency:.more than the 90%Channel: 2.0Quiet/Mute: Short-circuit Mute FunctionOutput Power:315W/4 ohm, Distortion 10%185W/8 ohm, Distortion 10%260W/4 ohm, Distortion 1%150W/8 ohm, Distortion 1%Frequency Response: 20Hz to 20KHzDynamic Range: more than the 100 dBSignal to Noise Ratio: more than the 111dBWorking Voltage: DC24-40V Switching Power Supply(Recommended 36V)2 Audio Operational Amplifiers: NE5532PFeatures: Intelligent Chip, Effect, LightweightColour:As shownMaterial:pcbPackage Contents:1 * Amplifier Board

TPA3255 2.0 Digital Amplifier Board DC24-48V Strong 300W + 300W Class D Dig T3Q2 The computing end uses the replaceable DIP-8 op amp x2, and can upgrade the computing model independently. This product uses 2 TI high-performance audio operational amplifiers NE5532PThe electrolytic capacitor adopts capacity 2200UF/63V x 2, 6 FW series 10UF golden audio input coupling capacitors. Other filter capacitors use series.Adopt SAGAMI 7W14A inductor for audio digital class D amplifier to the sound is clear and powerful.colour: as shownMaterial: electronic componentsPackage Contents:1 x Digital Amplifier BoardOnly the above package content, other products are not included.Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.

TPA3255 Hochbass-Subwoofermodul 2.1-Kanal-Bluetooth-VerstäRkerplatinenmodul D5X6 Reichhaltige Schnittstellen, multifunktional und Kompatibilität.AUX-Audioanschluss Unabhängige Einstellung der Höhen des linken und rechten Kanals und unabhängige Einstellung der Bässe/Subwoofer Stufenlose 360-Grad-Abstimmung.Lautstärkeeinstellung: High-End-Encoder-Knopfeinstellung, glattes GefühlSchutzmechanismus: Überspannung, Unterspannung, Überhitzung, Clipping, Kurzschluss, etc.Einzigartige Funktion: Unterstützung der Audio-APP-SteuerungProduktname: 2.1-Kanal-Bluetooth-Audio-LeistungsverstärkerplatineProduktmodell: -S350HBluetooth-Version: 5.1Signal-Rauschabstand: 92dBFrequenzbereich: 20Hz-20KHzStromversorgung: DC18-38V/10A oder mehr AudioKanal: 2.1-KanalAudioausgang: linker und rechter Kanal + SubwooferAudioeingang: Bluetooth+AUX+U-Festplatte+USB-SoundkarteAusgangsleistung: 220 W x 2 (linker und rechter Kanal) + 350 W (Subwoofer)Maximale Ausgangsleistung linker und rechter Kanal: 220W/3Q2--36VDC 175W/4Q2--36VDC 100W/8Q2--36VDCMaximale Ausgangsleistung des Subwoofers: 355W/2Q--36VDC 250W/3Q--36VDC 195W/4Q--36VDCSubwoofer (Subwoofer) kompatibler Lautsprecher: 20W-200W/2Q-8QProduktgröße: 133 x 130 x 25 mmMaterial: PCBFarbe: schwarzPackungsinhalt:1 x Abdeckplatte oben1 x untere Abdeckplatte1 x Platine1 x Schraubendreher4 x M2x18 Kupfersäule4 x M2x4+3 Kupfersäule5 x Knopfkappe8 x M2x3mm Schrauben

Used, very good condition with 32V Fosi power supply. Functions perfectly, no noise up to about 80% of the dial in my setup. Much more power and clarity than the TPA3116 versions and tone controls are a huge plus over the A07. Moving and need to get rid of as much as possible.

AIYIMA A07 TPA3255 2.0 Channel Power Amplifier 300Wx2 HiFi Class D Stereo Audio. Fully boxed with no power supply as varies as to output power requires from 24v to 48vOnly opened to test

TPA3255 4 Channel Digital Class D Amplifier 315W Home Theater DIY Sound Speh 1. Adopt original TPA3255 chip2. The electrolytic capacitor adopts a capacity of 470UF / 50V x 4, which ensures a strong source of continuous .3. The resistor uses high-precision chip resistors to a good signal-to-noise ratio.4. Adopt special inductance for audio to the sound is crisp and powerful.5.PCB adopts 1.6mm thick double-sided board, 2.0 ounce copper thickness, and full tin-spraying process to good passing performance of and small currents. First-class PCB quality.Descriptions:TPA3255 Four-channel digital Class D amplifier boardTPA3255 is a high-performance Class D power amplifier, which has Class D efficiency and can bring true high-end sound quality. There is an advanced integrated feedback design and a proprietary high-speed gate driver error correction function. This technology allows the device to maintain ultra-low distortion throughout the entire audio frequency band while exhibiting perfect sound quality.Basic performance parameters:Working : Class DQuiescent current: 150mAWork efficiency:. 90%Output Power:315W / 4?, distortion 10% x 4185W / 8?, distortion 10% x 4260W / 4?, distortion 1% x 4150W / 8?, distortion 1% x 4Frequency response: 20Hz to 20KHzDynamic range: 100 dBSignal to noise ratio: () 111dBWorking voltage: DC24-48V switching power supply (DC) (It is recommended to use DC36V switching power supply. If the temperature of the radiator of the power amplifier board with DC48V power supply will be higher, you need to increase the fan cooling)Material:ABScolour:As ShownPackage Contents:1 Amplifier

2X TPA3255 2.0 Digitale Verstärker Platine DC24-48V Leistung 300W + 3P2A1 Das Computerende verwendet den austauschbaren DIP-8-Operationsverstärker x2, und Käufer können das Computermodell unabhängig aufrüsten. Dieses verwendet 2 Hochleistungs-Audio-Operationsverstärker von TI NE5532PDer Hauptfilter-Elektrolytkondensator verwendet eine -Kapazität von 2200UF/63V x 2, 6 goldene Audioeingangskopplungskondensatoren der FW-Serie 10UF. Andere Filterkondensatoren verwenden die -Serie.Verwenden Sie die SAGAMI 7W14A-Induktivität für einen digitalen Audioverstärker der D, um sicherzustellen, der klar und kraftvoll ist.Farbe: wie abgebildetMaterial: elektronische BauteileVerpackungsinhalt:2 x digitale Verstärkerplatine

TPA3255 HIFI Digital Amplifier Board 300Wx2 (1 Set,Black) S2U1 The TPA3255 is a high-performance Class D power amplifier chip with Class D efficiency and a circuit that delivers true high-end sound quality. The device features an advanced integrated feedback design and proprietary high-speed gate driver error correction (PurePath™ Ultra HD). This technology allows the device to maintain ultra-low distortion across the audio band while delivering sound quality.Operating in AD mode, the device can drive up to two 315W/4R loads and two 150W (unclipped power)/8R loads at 1.5% , and features a 2 VRMS analog input interface for seamless connection to high-performance DACs such as TIs PCM5242.In addition to excellent audio performance, the TPA3255 also combines efficiency and ultra-low power-level idle losses (less than 2.5W). This is achieved through an 85mR MOSFET and an optimized gate driver scheme.This solution provides a significant reduction in idle losses compared to traditional discrete implementations.Product parametersPower amplifier IC: TPA3255 chipInput : 3.5MM stereo wired socket interface (3PWork efficiency: 90%Output power: 315W/4?, distortion 1.5%; 185W/8?, distortion 1.5%; 260W/4?, distortion 1%, ; 150W/8?, distortion 1%2Frequency Response: 0Hz to 20KHzDynamic range: 100 dBSignal to Noise Ratio: () 111dBPower supply: DC19 to DC48V [current recommended above 5A]Overall size: 110 x 70 x 30MMMaterial: PCBcolour: BlackPackage Contents:1 x Amplifier Board Module1 x Audio cable

Upgraded TPA3255 2.0 DC19-40V PBTL 600W 315W + 315W Stereo Class D Digital V3J3 Now Its the latest version , it is the product after the change, which has completely improved the common problem of high voltage protection.The use of 50V is also completely normal, and the use of materials is also more feverish. The auxiliary power supply uses Class A linear power supply, which is more dynamic, and the sound quality is significantly improved! It can perfectly drive 2-16 Euro speakers!TPA3255 is a high-performance class D power amplifier chip, which has class D efficiency and can bring true high-end audio quality circuit. The device features advanced integrated feedback design and proprietary high-speed gate driver error correction function (PurePath ™ UHD).This technology can enable the device to maintain ultra-low distortion in the entire audio frequency band, while displaying sound quality. The device works in AD mode. When the is 1.5%, it can drive up to two 315W/4R loads and two 150W (unshipped power)/8R loads, and has a unique 2 VRMS analog input interface, which supports seamless connection with high-performance DAC (such as TIs PCM5242).In addition to excellent audio performance, TPA3255 also has two advantages: efficiency and ultra-low power level idle loss (less than 2.5W). This can be achieved through 85mR MOSFET and optimized gate driver scheme. Compared with the traditional discrete implementation scheme, this scheme can significantly reduce idle loss.Power amplifier IC: TPA3255 chipInput mode: 3.5M stereo wired socket interface (3P)Output power: 315W/4 Ohms, distortion 1.5% 185W/8 Ohms, distortion 1.5%, 260W/4 Ohms, distortion 19%, 150W/8 Ohms, distortion 19%Frequency response: 20Hz to 20KHzDynamic range: 100dBSignal-to-noise ratio (): 111dbPower supply: the current from DCI9 to DC48V is recommended to be more

TPA3255 Digital Class D HIFI Audio Amplifier Board 300Wx4 High Amplifier BM5C2 The TPA3255 is a high performance Class D power amplifier with Class D efficiency and capable of delivering true high-end sound quality. The device features an advanced integrated feedback design and proprietary high-speed gate driver error correction (PurePath™ Ultra HD). This technology enables the device to maintain ultra-low distortion across the entire audio frequency band while delivering sound quality.The device operates in AD mode, can drive up to two 315W/4R loads and two 150W (unclipped power)/8R loads at a of 10%, and features a 2 VRMS analog input interface that supports interfacing with high-performance DACs (eg TIs PCM5242) seamlessly. In addition to excellent audio performance, the TPA3255 combines efficiency with ultra-low power stage idle losses ( 2.5W).This can be achieved with an 85mR MOSFET with an optimized gate driver scheme. Compared with traditional discrete implementations, this scheme can significantly reduce idle losses.All parts of this product are authentic, and pure in quality; using high- is not only a of safety and quality, long service life, but also a strong that the actual performance can reach the design goal.Theresistor adopts high-precision chip resistors, which ensures a good signal-to-noise ratio of the whole machine.Adopt special magnetic ring inductance for audio to clear and powerful sound.PCB adopts 1.6mm thick double-sided board, 2.0oz copper thickness, and full tin spraying process to good passing performance of and small currents. Top- PCB quality.Colour:blackMaterial:plasticPackage Contents:1 x Audio Power Amplifier Board

TPA3255 Digital Class D HIFI Audio Amplifier Board 300Wx4 High Amplifier BW4F9 The TPA3255 is a high performance Class D power amplifier with Class D efficiency and capable of delivering true high-end sound quality. The device features an advanced integrated feedback design and proprietary high-speed gate driver error correction (PurePath™ Ultra HD). This technology enables the device to maintain ultra-low distortion across the entire audio frequency band while delivering sound quality.The device operates in AD mode, can drive up to two 315W/4R loads and two 150W (unclipped power)/8R loads at a of 10%, and features a 2 VRMS analog input interface that supports interfacing with high-performance DACs (eg TIs PCM5242) seamlessly. In addition to excellent audio performance, the TPA3255 combines efficiency with ultra-low power stage idle losses ( 2.5W).This can be achieved with an 85mR MOSFET with an optimized gate driver scheme. Compared with traditional discrete implementations, this scheme can significantly reduce idle losses.All parts of this product are authentic, and pure in quality; using high- is not only a of safety and quality, long service life, but also a strong that the actual performance can reach the design goal.Theresistor adopts high-precision chip resistors, which ensures a good signal-to-noise ratio of the whole machine.Adopt special magnetic ring inductance for audio to clear and powerful sound.PCB adopts 1.6mm thick double-sided board, 2.0oz copper thickness, and full tin spraying process to good passing performance of and small currents. Top- PCB quality.Colour:blackMaterial:plasticPackage Contents:1 x Audio Power Amplifier Board

TPA3255 Class D Amplifier Board 300Wx2 (1 Set,Black) U2O2 The TPA3255 is a high-performance Class D power amplifier chip with Class D efficiency and a circuit that delivers true high-end sound quality. The device features an advanced integrated feedback design and proprietary high-speed gate driver error correction (PurePath™ Ultra HD). This technology allows the device to maintain ultra-low distortion across the audio band while delivering sound quality.Operating in AD mode, the device can drive up to two 315W/4R loads and two 150W (unclipped power)/8R loads at 1.5% , and features a 2 VRMS analog input interface for seamless connection to high-performance DACs such as TIs PCM5242.In addition to excellent audio performance, the TPA3255 also combines efficiency and ultra-low power-level idle losses (less than 2.5W). This is achieved through an 85mR MOSFET and an optimized gate driver scheme.This solution provides a significant reduction in idle losses compared to traditional discrete implementations.Product parametersPower amplifier IC: TPA3255 chipInput : 3.5MM stereo wired socket interface (3PWork efficiency: 90%Output power: 315W/4?, distortion 1.5%; 185W/8?, distortion 1.5%; 260W/4?, distortion 1%, ; 150W/8?, distortion 1%2Frequency Response: 0Hz to 20KHzDynamic range: 100 dBSignal to Noise Ratio: () 111dBPower supply: DC19 to DC48V [current recommended above 5A]Overall size: 110 x 70 x 30MMMaterial: PCBcolour: BlackPackage Contents:1 x Amplifier Board Module1 x Audio cable

TPA3255 High Bass Subwoofer Module 2.1 Channel Bluetooth Amplifier Board ModV9X5 interfaces, multi-functional and strong compatibility.AUX audio connection adjustment of left and right channel treble and bass/subwoofer adjustment 360-degree stepless tuning.Volume adjustment: high-end encoder knob adjustment, feelProtection mechanism: overvoltage, undervoltage, overheating, clipping, short circuit, etc.Unique function: support Audio-APP controlProduct name: 2.1 channel bluetooth audio power amplifier boardProduct model: -S350HBluetooth version: 5.1Signal-to-noise ratio: 92dBFrequency range: 20Hz-20KHzPower supply: DC18-38V/10A or more audioChannel: 2.1 channelAudio output: left and right channels + subwooferAudio input: Bluetooth+AUX+U disk+USB sound cardOutput power: 220W*2 (left and right channels) + 350W (subwoofer)Left and right channel maximum output power: 220W/3Q2--36VDC 175W/4Q2--36VDC 100W/8Q2--36VDCSubwoofer maximum output power: 355W/2Q--36VDC 250W/3Q--36VDC 195W/4Q--36VDCSubwoofer (subwoofer) compatible speaker: 20W-200W/2Q-8QProduct size: 133 x 130 x 25mmMaterial: PCBcolour: blackPackage Contents:1 x Top cover plate1 x Bottom cover plate1 x PCB board1 x screwdriver4 x M2x18 copper pillar4 x M2x4+3 copper pillar5 x button cap8 x M2x3mm screws