Reviews Voice Resonance Development

Sundown Audio E-15 v4 D2 15 500W RMS Dual 2-Ohm Subwoofer

  • Specifications: DC Resistance (Re): 7.75 Ω | Resonance Frequency (Fs): 36.95 Hz | Equivalent Volume (Vas): 52.35 L | Electrical Q Factor (Qes): 0.85....
  • Box Recommendations: Sealed Enclosure Suggestion: 2.5 cu. ft. | Ported Enclosure Suggestion: 3 - 4 cu. ft. @ 35 Hz | Displacement: 0.17 cu. ft. |....
  • Thick black anodized aluminum voice coil formers for maximum strength and heat dissipation | 4‐layer copper high temperature voice coil windings....
  • Custom tooled frame spacer / ventilation ring | High efficiency air‐flow management integrated into the motor for maximum voice coil cooling | Dual....
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Sundown Audio SA-15 Classic D4 15 750 Watts Dual 4-Ohm SA Series Subwoofer

  • Specifications: DC Resistance (Re): 7.75 Ω | Resonance Frequency (Fs): 36.95 Hz | Equivalent Volume (Vas): 52.35 L | Electrical Q Factor (Qes): 0.85....
  • Box Recommendations: Sealed Enclosure Suggestion: 2.5 cu. ft. | Ported Enclosure Suggestion: 3 - 4 cu. ft. @ 35 Hz | Displacement: 0.17 cu. ft. |....
  • Thick black anodized aluminum voice coil formers for maximum strength and heat dissipation | 4‐layer copper high temperature voice coil windings....
  • Custom tooled frame spacer / ventilation ring | High efficiency air‐flow management integrated into the motor for maximum voice coil cooling | Dual....
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Kicker CWR122 43CWR122 12 CompR Car Subwoofer

  • 12-INCH SUBWOOFER: One Kicker CompR round 12 Inch Car Audio Subwoofer for serious bass power.
  • 1000 WATTS MAX POWER: MAX Power Handling: 1000 Watts.
  • DUAL VOICE COIL: Dual voice coils 2 Ohms impedance, 86.9 dB sensitivity and 28.6 HZ driver resonance frequency response.
  • POLYPROPYLENE CONE: Features polypropylene cone and ribbed santoprene surround for linear cone movement.
  • Revolutionary SoloKon technology joins the....
  • SPECIFICATIONS: Spiralead tinsel delivers your power reliably and efficiently.
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eMedia Singing Method v1.1 (Latest Version) - Learn at Home

  • Latest version of the best-selling voice and singing instructional software.
  • Over 230 interactive lessons teach you to sing better by understanding breathing, resonance, how to form vowels and consonants, and much more.
  • Performance Evaluation technology listens to you sing, gives specific feedback on mistakes, and provides an overall score.
  • Over 30 videos and animations teach you about your voice and proper technique, and show how sound is produced by your body.
  • Over 80 songs including hits from Diana Ross, John Lennon, and more.
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Harmonica | 16 Hole Musical Instrument for Kids Early education

  • Beautiful Appearance: Smooth lines to fit baby's hand shape and Rich colours to attract baby's attention.
  • High quality : made of abs, integrally moulded for a stable resonance and reliable airtightness.
  • DESIGN FOR KIDS : no sharp edges, no small parts or accessories, very safe for children.
  • Musical enlightenment : encourages baby's musical development and exploration, audio recognition and play.
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Bugsy Malone [Blu-ray]

  • 1000 WATT POWER: This car subwoofer has 1000 Watt peak power that will produce high sound resonance. It also has 65 + 65 oz. heavy double stacked....
  • WIDE RUBBER SUSPENSION: Made with this non-fatiguing rubber suspension to keep equipment safe. Designed with bumped and vented motor structure for....
  • NON-PRESSED PAPER CONE: It is a clean-cut car subwoofer that boasts a black non-pressed paper cone. It will enhance car stereo by producing a powerful....
  • KAPTON VOICE COIL: The speaker subwoofer comes with a 2” dual layer high-temperature Kapton voice coil to resist corrosion. It has a stamped steel....
  • 6.42” MOUNTING DEPTH: Easy to install with its 6.42” mounting depth and fits most audio system for cars, boats or RVs. Included are the necessary....
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NVX VSW84v2 8 inch VS-Series Car Audio Subwoofer - Dual 4 Ohm Voice Coil 500 Watts Peak & 250 Watts RMS

  • 8" VS-Series Version Two Car Subwoofer with a 4 Ohm Dual Voice Coil.
  • Power Handling: 250 watts RMS - 500 watts Peak | Sensitivity: 85 dB (1W/M) | Resonance Frequency (Fs): 36 Hz | Frequency Response: 20 - 200 Hz.
  • 2.5” Aluminum Voice Coil: Each of our subwoofers is equipped with a 2.5” aluminum voice coil, providing maximum current distribution throughout....
  • Accurate Hard-Hitting Bass: The VS-Series subwoofers pack a massive punch when it comes to bass output. Our subwoofers are designed with a non-pressed....
  • Aluminum Shorting Ring: What makes our subwoofers stand out from other subwoofers on the market is the aluminum shorting ring. The ring is a....
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KICKER 2 12' 800 Watt CompVR 4 Ohm DVC Subs Car Power Subwoofers | 43CVR124

  • 12″ CompVR 4 Ohm: The CompVR 12-Inch Subwoofer is a 4dual voice coil design, built for easy wiring..
  • CompVR creates your bass using high-temp, dual voice coils. A ribbed Santoprene surround also gives the cone added strength under stress. The perimeter venting, Spiralead tinsel-lead technology, and spring-loaded push terminals are part of the high-performance engineering standards found on every KICKER woofer..
  • The CompVR 12-Inch Subwoofer works best with a sealed or ported enclosure and 400 watts of recommended power. Features/Specifications: (2) Kicker 43CVR124 12″800 Watt Dual Voice Coil 4-Ohm Car Stereo Subwoofers. Power Handling : Peak :800 watts. RMS :400 watts. Size : 12″.
  • Injection molded SoloKon cone. Ribbed Santoprene Surround. Perimeter Venting. Spiralead tinsel-lead technology. UniPlate system redirects heat away from motor structure. Stamped Steel Basket. Spring-loaded Push Terminals. 360 degree back bracing. Dual 4-Ohm high-temperature voice coils.
  • Mounting depth :6.25″. Top-mount depth : 4-3/8″. Cutout diameter : 11″. Frequency Response : 25 – 350Hz. Sensitivity : 87.1dB @ 1w/1m. Resonance Frequency (Fs) : 32.7. Subwoofer Design : Round / Circle. Min Sealed Box Vol : 1 cu. ft. Max Sealed Box Vol : 4.6 cu. ft..
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Yahboom Jetson Nano/TX2-NX/Xavier NX/Raspberry Pi ROS Robot Lidar Mapping Navigation Depth Image 3D Analysis Mecanum Wheel Python Programming Learn Explore Robotic Kit (Pi Superior Ver-Without Pi)

  • ROS robotic learning kit for multiple versions: Yahboom provides 4 development board versions of ROSMASRER X3, you can freely choose Jetson Xavier NX, Jetson TX2-NX, Jetson Nano or Raspberry Pi 4B, based on the different performance issues of these development boards, The smoothness of operation is worth considering, Yahboom recommends the cost-effective Jetson TX2-NX（For detailed and comprehensive introduction, please view the video on the details page: rosmaster x3）.
  • In-depth exploration of AI algorithms and intelligent robots: ROSMASRER X3 is equipped with a depth camera, lidar, and voice interaction module, which can realize ROS operating system, RTAB 3D mapping navigation, PCL 3D point cloud, SLAM mapping navigation, Machine vision applications, Voice interactive control, Python programming, STM32 development, MediaPipe development, YOLO model training, TensorRT acceleration (Note: Different features depend on the version you choose).
  • Rich course materials and professional after-sales support team: We provides 103 dual-language video courses, and online technical assistance (China time). The course content includes: ROSMASTER X3 assembly, Linux operating system, ROS and openCV series courses, depth camera and lidar mapping and navigation expla....
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IndeCool Kids Bluetooth Karaoke Machine with 2 Microphones, Remote Control Wireless Karaoke Speaker Portable Karaoke Machine Music MP3 Player for Kids Adult Party Gift (Multicolored)

  • ...oustic properties of wood can create clear and nature sound, effectively eliminate the adverse effects such as resonance. With excellent large audio amplifiers, this karaoke machine provides you great experience of sound effect. The sound is clear and soft, and the volume can be adjusted for different occasions..
  • ♪Developmental Benefits: 1) Hearing Development: Soft and beautiful music, can stimulate kid’s hearing development. 2) Visual Development: Rich colors can attract kid’s attention, and stimulate kid’s visual development. 3) Fine Motor Development: Playing the karaoke machine can train kid’s hand-eye coordination..
  • ♪All parts are packed in color box, can be a great choice for gift. Customer Satisfaction and high quality product as our purpose. If there is something wrong with the product you receive, please kindly let us know and we will find best solution to solve the problem..
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Yahboon Ackerman Steering Structure Smart Robot with Jetson Nano ROS Professionally Programmable Car Kit Rosmaster R2

  • ...structure. When the robot car turns, the angles of the inner and outer wheels are different, and the turning radius of the inner tire is less than The turning radius of the outer tires can maximize the performance of the robot car..
  • Rosmaster R2 has 3 versions (Standard, Superior, Ultimate), which can be used with 4 development boards (Raspberry Pi 4B, Jetson Nano 4GB, Jetson TX2-NX, Jetson Xavier NX), please pay attention to whether the version you choose includes development board. If you need to reduce the hardware in the kit (eg: depth camera, radar, etc.), contact Yahboom first for assistance..
  • ROSMASTER R2 based on robot operating system. It is equipped with high-performance hardware configuration such as lidar, depth camera, and voice interaction module. It can realize applications such as robot motion control, remote control communication, mapping and navigation, following obstacle avoidance, Autopilot, human body feature action recognition, and voice interactive control. Yahboom will provide tutorials, source code and professional technical support ..
  • Multi-platform linkage: rosmaster X3 supports a variety of remote control methods such as mobile phone APP, handle, ROS system, computer keyboard, etc. It can control your robot car at any time, i....
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Garmin MS-SW10 Fusion Entertainment 10-Inch 400W Marine-Grade Subwoofer

  • 2" voice coil - 4 ohms - 30hz-2.0Khz - 88Db.
  • Min. Mounting depth - 4.5" mounting diameter - 8.75".
  • Free space resonance: 28Hz, frequency response: 30Hz - 2Khz.
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American Bass Competition 12' 3000 Watt Dual 4 Ohm Subwoofer Hawk 1244

  • Carbon Kevlar woven cone backed with non-press paper.
  • 3-inch high temperature voice coil with ultra long windings, triple-stacked 300 oz magnets.
  • Resonance frequency (fs): 33.3, mounting depth: 8.14 inches, cutout size 13.77, sensitivity: 91.2 dB.
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