Top High frequency Board

Padyrytu 400W Speaker Crossover 2 Way High-Low 4-16 Ohm Frequency Divider for Speaker 304142, motherboard red

  • Professional High-quality Crossover：This is a professional frequency divider, which is widely installed in the speaker. Playing an important role of the total frequency signal segmentation. Treble and bass dual frequency support, helps to transmit the treble signal to the tweeter unit, and divide the bass signal into subwoofer unit.
  • Perfect HIFI Sound Quality：Make the treble clear and increase the intensity of the bass, freely enjoy clear and natural music.To separate the mixed audio signal into a treble, bass, and then were sent to the corresponding treble, bass speaker unit in playback, resulting in enhance the sound quality purposes.
  • High Quality and Super Durability: wire wound ceramic resistor and high-quality metal film capacitors, ensure its large load power, long-term durability, never burnout.Large capacity, reasonable design, beautiful appearance, circuit board design with precise cutouts and lines, free for welding, very suitable for DIY.
  • Treble and Bass dual Frequency Dividing: It can be used in a wide range. It can be used with tweeter + bass two-way frequency speakers, 2.1 mid-high-range small satellite boxes and car full-range speakers, and can also use single-use treble or single-use bass. Speaker impedance of 4-16 ohms can be used, ....
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DC12V-24V 2.1 Channel TPA3116 Subwoofer Amplifier Board High Power Bluetooth Audio Amplifier Board 50W+50W+100W (Bluetooth Amp),Bluetooth Amp

  • tpa3116 amplifier 100W Subwoofer Amplifier Board.
  • Frequency response range: input: 20 hz - 20 KHZ, output: 20 hz - 180 hz.
  • tpa3116 2x50w amplifier board Operating voltage range: DC 12-24V(maximum voltage is no more than 24V).
  • This is a pre-amplifier, bass frequency processing, with bass volume potentiometer control of the bass amplifier board..
  • bluetooth amplifer board DC 12-24V power supply, wide operating voltage, power-saving design, more than 90% power efficiency. Maximum support 100W (Bass) bass channel output.
  • Speaker impedance: bass speaker impedance: 2-8 ohm.
  • You can use a good switching power supply adapter, laptop switching power supply, Here is our 24V power diy amplifier.
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KZ EDX PRO 1DD 10mm Dual Magnetic Dynamic Driver HiFi in-Ear Monitors KZ Earphones KZ IEMs with Detachable 0.75mm C Pin Cable (No Mic, Cyan)

  • 【Upgraded Version KZ EDX PRO Earphones】Upgrade version of KZ EDX earphone, Using a special dual magnetic circuit sound unit, the size reaches 10mm. Dual magnetic circuit dynamic unit brings a more natural low frequency response and transparency high frequency performance ..
  • 【Special 10MM Dual Magnetic Circuit Dynamic Unit】The upgrade version of kz edx in ear earphones use a special 10mm dual magnetic circuit sound unit, bringing a more natural low frequency response and transparency high frequency performance .The advantage of the dual magnetic circuit dynamic is in the strong and abundant magnetic ,which provides shocking low-frequency sound effects, and the gentle and sweet vocals, as if being in a concert scene..
  • 【Three Frequencies Equalization, Smooth To The End 】The electronic crossover board is integrated into the dynamic unit through sophisticated technology to enhance the performance of the low-mid frequency dynamic range. whether it is EMD Rock R&B or Classical Violin , it can play a strong role ..
  • 【Ergonomic Design &Comfortable Wearing】The same ergonomic cavity structure as always, the ligh....
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KZ ZS10 Pro Earbuds Headphone, KZ in Ear Monitor IEM HiFi Earphone with 5 Driver 4BA 1DD with Detachable 0.75mm 2 Pin Cable for Singer Musician Drummer (Purple No Mic)

  • 5 Drivers KZ ZS10 Pro Upgrade Version of ZS10: The KZ ZS10 Pro has 4 balanced armature drivers and 1 piece Second Generation 10mm double magnetic dynamic driver, the bass range has improved much compared with former ZS10 model. Mid range 50060 balanced armature and 30095 high frequency armature driver bring much brighter definition on music..
  • Upgrade Detachable 2Pin Cable Design of KZ ZS10 Pro: Newest protective 2 pin design on this KZ earphone, effectively protect the insertion pin from breaking and prolong the using time. 0.75mm 6N OFC cable with gold plated standard 3.5mm jack design, provides better sound quality signal transmission..
  • Separate PCB Frequency Crossover Board: Separate electric frequency crossover board and acoustic structure on this KZ ZS10 Pro headphone, let the sound of this earphone become clearer and smooth, fully showed the advantage of each driver..
  • Durable 304 Stainless Steel Penal: KZ ZS10 pro monitor headphone uses the 304 stainless steel shell and resin as the major structure material, provide this KZ IEM Headset more durability feature and fashionable appearance..
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KZ ZS10 Pro 4BA 1DD KZ Headphone Multi Driver HiFi Monitor, KZ in Ear Earphoner IEM with All in One Button (Black with Mic)…

  • 5 Drivers KZ ZS10 Pro Upgrade Version of ZS10: The KZ ZS10 Pro has 4 balanced armature drivers and 1 piece Second Generation 10mm double magnetic dynamic driver, the bass range has improved much compared with former ZS10 model. Mid range 50060 balanced armature and 30095 high frequency armature driver bring much brighter definition on music..
  • Upgrade Detachable 2Pin Cable Design of KZ ZS10 Pro: Newest protective 2 pin design on this KZ earphone, effectively protect the insertion pin from breaking and prolong the using time. 0.75mm 6N OFC cable with gold plated standard 3.5mm jack design, provides better sound quality signal transmission..
  • Separate PCB Frequency Crossover Board: Separate electric frequency crossover board and acoustic structure on this KZ ZS10 Pro headphone, let the sound of this earphone become clearer and smooth, fully showed the advantage of each driver..
  • Durable 304 Stainless Steel Penal: KZ ZS10 pro monitor headphone uses the 304 stainless steel shell and resin as the major structure material, provide this KZ IEM more durability feature and fashionable appearance. All In One Button - No Volume Control: ....
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KZ ZS10 Pro in Ear Monitor Earbuds Headphone, HiFi KZ Earphone with 4BA and 1DD Drivers, KZ Upgraded ZS10 Pro with Detachable 0.75mm 2 Pin 6N OFC Cable (Black No Mic)

  • 5 Drivers KZ ZS10 Pro Upgrade Version of ZS10: The KZ ZS10 Pro has 4 balanced armature drivers and 1 piece Second Generation 10mm double magnetic dynamic driver, the bass range has improved much compared with former ZS10 model. Mid range 50060 balanced armature and 30095 high frequency armature driver bring much brighter definition on music..
  • Separate PCB Frequency Crossover Board: Separate electric frequency crossover board and acoustic structure on this KZ ZS10 Pro headphone, let the sound of this earphone become clearer and smooth, fully showed the advantage of each driver..
  • Upgrade Detachable 2Pin Cable Design of KZ ZS10 Pro: Newest protective 2 pin design on this KZ earphone, effectively protect the insertion pin from breaking and prolong the using time. 0.75mm 6N OFC cable with gold plated standard 3.5mm jack design, provides better sound quality signal transmission..
  • Durable 304 Stainless Steel Penal: KZ ZS10 pro monitor headphone uses the 304 stainless steel shell and resin as the major structure material, provide this KZ IEM more durability feature and fashionable appearance..
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CW QRP Shortwave Radio Kit - CW Transceiver Shortwave Radio Kit

  • The patch device of the main control board has been pre welded and connected to the base plate in the form of stamp hole. The single chip microcomputer adopts pic16f1938, builtin PLL local oscillator, supports crystal oscillator calibration setting, and has its own frequency indication circuit (Seven Segment LED nixie tube is used, the display unit is 1kHz, the photo has color difference, and the actual color is red. The working frequency covers 7.000-7.100mhz, 1kHz or 100Hz steps )..
  • Ta2003 mixer is used for reception, and crystal filter is used for if. After ta2003 multiplication detection, the sound size is adjusted by digital potentiometer and sent to audio active filter circuit. Finally, LM386 drives speaker, and if frequency supports calibration setting..
  • Use 3 bs170 parallel outputs, class E amplification, 12V power supply, output power 5W! Relay switching is used for transceiver, with the function of transmitting delay adjustment to avoid frequent relay switching and improve the isolation of transceiver channel..
  • It has the function of automatically sending call signs, which is very convenient to use. The MCU uses the original code of our store, which can adjust the code speed, sidetone frequency and sidetone size. It can input the call sign by ....
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Rockville APM10C 10\ 400 Watt Powered/Active Studio Subwoofer Pro Reference Sub, Classic Wood, 10 inch

  • ...or on Rear Panel. Rubber woofer surrounds increases sound quality and eliminates unwanted distortions..
  • We developed the Most Optimized Magnet structure, Cone, and Cabinet Space that Reproduces the Sound to Play Back Exactly the Way it was Recorded! Specially Wound Voice Coils Produce Accurate Response along the Low Frequency Spectrum..
  • Thick "Wadding" protects inside the subwoofer cabinet - Wadding is a white, artificial silk-like material that we put inside the subwoofer cabinet for multiple reasons..
  • Every subwoofer in Production Undergoes a Computer Generated Sound Check Test to Ensure it Upholds to our Specifications and Standards. We use a "6Sigma" style Quality Assurance of Each Product.
  • Inputs / Outputs / Controls: Volume control. Crossover Frequency Control allows you to adjust low frequency input: 50Hz - 150Hz. 1/4" TRS input jack. Left and Right XLR input/outputs. RCA input/outputs..
  • Details: Certification: CE and RoHS Compliant. Amplifier: Class D, very efficient amplifier with top components! (ST--STA309, ST--STA516, SMPS).Woofer Impedance: 8 Ohm. Signal to noise ratio: 98 dB (Maximum output with THD+1003c1%, A-weight).THD: 0.8%..
  • Frequency Response: 34Hz - 150 KHz. 400 Watts peak output. 200 Watt RMS output.Input voltage: 120V. 10" woofer wit....
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BUBOS Acoustic Absorption Panel,12

  • ..., home theaters theaters etc ,which allows you to leave countless beautiful memories in a comfortable environment..
  • GOOD NOISE REDUCTION : If you are mixing in the studio, the ambient sound must be reduced. Any unnecessary noise will destroy the recording. The sound-absorbing board absorbs the sound generated by low frequency, middle frequency and high frequency, making it very suitable for recording..
  • EASY TO INSTALL:They can be used as acoustic cover for walls, ceilings and doors, just easily attach it with ,glue or 3M adhesive taps.Easy to shape and cut to size, altering wont affect performance,no special tools or materials are needed for installation..
  • AFTER SELL:If you are not satisfied with our products, please do not give us a 1 star review, our professional acoustic engineers will analyze the specific situation for you If it cannot be resolved, we will provide a 100% refund, no problem. Click Add to cart above to get it now!.
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MMDVM Duplex Hotspot Module Dual Hat V1.3 Support P25 DMR YSF NXDN DMR Slot 1 + Slot 2 for Raspberry pi with USB Port (Without OLED)

  • if the board fails to work on duplex mode, please run the upgrade command: sudo pistar-mmdvmhshatflash hs_dual_hat.
  • HIGH PERFORMACE: 32-bit ARM processor, up to 10mW RF power, fully tested every piece..
  • WIDELY COMPATIBLE: Supports DMR, P-25, D-Star and System Fusion.
  • WORK with RASBERRY Pi: Mounts cleanly on current Raspberry Pi including the Pi Zero , NOT compatible with Rasberry Pi 4..
  • Update new FW: (pi-star / expert / ssh access / user :pi-star pass:raspberry) then run sudo pistar-mmdvmhshatflash hs_dual_hat set Jumper BOOT0=1,BOOT1=0 and soler JP1 First! After upgraded finished, disconnect JP1.
  • FREQUENCY: Radio Frequency : Freq:144-148,219-225, (Main Band) 420-475,842-950 NOTE: TX =0, RX=0. Modem select: STM32-DVM/MMDVM_HS-Raspberry pi Hat(GPIO) or any other (GPIO board).
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7-80V PWM DC Motor Speed Controller Switch 30A,Motor Speed Control Regulator

  • 1️⃣ 7-80V PWM DC Motor Speed Controller Switch 30A,Motor Speed Control Regulator.
  • 2️⃣ Wide voltage 7-80V high current 30A Design Wide range of applications, on-board switch with operation Stop brake function, adjustable potentiometer soft cable can be separated Line length 30CM..
  • 3️⃣Circuit optimization design Wide range of duty cycle adjustment, smooth motor without vibration, no vibration, with power indication, stable circuit design for long working hours..
  • 4️⃣Adopt imported high-voltage MOS tube, three high-voltage 100V high-frequency resistance capacitors, and fuses for braking. The parameters are not easy to heat and easy to replace. The standard aluminum housing protects the internal circuits and components for long-term durability..
  • 5️⃣Package Contents:1 x 7-80V PWM DC Motor Speed Controller Switch 30A.
  • Amazon satisfied customer service & fast ship..
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Kinboofi KZ ZS10 Pro IEM in Ear Monitor, 4BA 1DD KZ Headphone Multi Driver in Ear Earphone IEM, KZ Earphone, on Stage Monitor for Singer Guitarist Drummer (Matte Black No Mic)…

  • 5 Drivers KZ ZS10 Pro Upgrade Version of ZS10: The KZ ZS10 Pro has 4 balanced armature drivers and 1 piece Second Generation 10mm double magnetic dynamic driver, the bass range has improved much compared with former ZS10 model. Mid range 50060 balanced armature and 30095 high frequency armature driver bring much brighter definition on music..
  • Upgrade Detachable 2Pin Cable Design of KZ ZS10 Pro: Newest protective 2 pin design on this KZ earphone, effectively protect the insertion pin from breaking and prolong the using time. 0.75mm 6N OFC cable with gold plated standard 3.5mm jack design, provides better sound quality signal transmission..
  • Separate PCB Frequency Crossover Board: Separate electric frequency crossover board and acoustic structure on this KZ ZS10 Pro headphone, let the sound of this earphone become clearer and smooth, fully showed the advantage of each driver..
  • Durable 304 Stainless Steel Penal: KZ ZS10 pro monitor headphone uses the 304 stainless steel shell and resin as the major structure material, provide this KZ IEM more durability feature and fashionable appearance. All In One Button - No Volume Control: ....
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