ReviewsVoice Resonance Development

Image Dynamics ID65CS 6.5" 100W RMS ID Series Component Speakers System

  • 10" Dual 2 ohm IDQ V.4 Series Subwoofer | Mica-reinforced polypropylene cone woofer | Parabolic roll surround | Ability to custom match the basket color to your personal installation | Conex spider with integrated tinsel leads | New V4 Metal Basket | High-temperature aluminum voice coil | Proprietary voice coil attachment design.
  • Power Handling: Peak: 1000 watts | RMS: 500 watts | Recommended Power Range: 50-500 watts.
  • Nominal Impedance (IMP): Dual 2 Ω | DC Resistance (Re): 1.85 Ω | Resonance Frequency (Fs): 31.77 Hz | Equivalent Volume (Vas): 44.71 L | Electrical Q Factor (Qes): 0.79 | Mechanical Q Factor (Qms): 2.90 | Total Q Factor (Qts): 0.62 | Peak Excursion (Xmax): 28 mm | Piston Area (Sd): 383.58 cm2 | Sensitivity: 84.50 dB 1w/1m.
  • Sealed Enclosure Suggestion: 1.1 cu.ft. | Ported Enclosure Suggestion: 1.45 cu.ft. | Displacement: 0.07 cu.ft. | Mounting Depth: 5.81 in | Outside Diameter: 11.04 in | Cutout: 9.57 in.
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Image Dynamics ID12 V.4 D2 12' 300W RMS Dual 2-Ohm V.4 Subwoofer

  • 10" Dual 2 ohm IDQ V.4 Series Subwoofer | Mica-reinforced polypropylene cone woofer | Parabolic roll surround | Ability to custom match the basket color to your personal installation | Conex spider with integrated tinsel leads | New V4 Metal Basket | High-temperature aluminum voice coil | Proprietary voice coil attachment design.
  • Power Handling: Peak: 1000 watts | RMS: 500 watts | Recommended Power Range: 50-500 watts.
  • Nominal Impedance (IMP): Dual 2 Ω | DC Resistance (Re): 1.85 Ω | Resonance Frequency (Fs): 31.77 Hz | Equivalent Volume (Vas): 44.71 L | Electrical Q Factor (Qes): 0.79 | Mechanical Q Factor (Qms): 2.90 | Total Q Factor (Qts): 0.62 | Peak Excursion (Xmax): 28 mm | Piston Area (Sd): 383.58 cm2 | Sensitivity: 84.50 dB 1w/1m.
  • Sealed Enclosure Suggestion: 1.1 cu.ft. | Ported Enclosure Suggestion: 1.45 cu.ft. | Displacement: 0.07 cu.ft. | Mounting Depth: 5.81 in | Outside Diameter: 11.04 in | Cutout: 9.57 in.
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Kicker 43CWRT672 CompRT 6.75 Inch 300 Watts 2 Ohm Dual Voice Coil Shallow Slim Car Audio Subwoofer with Santoprene Surround and Polypropylene Cone

  • 6.75-INCH SUBWOOFER: One Kicker CompRT Round 6.75 Inch Shallow Mount Car Audio Subwoofer for serious bass power.
  • 300 WATTS MAX POWER: MAX Power Handling: 300 Watts.
  • DUAL VOICE COIL: Dual voice coil 2 ohm impedance and 82.6 dB sensitivity with 60.5 Hz driver resonance frequency.
  • POLYPROPYLENE CONE: Features injection molded polypropylene cone and rubber surround that's weatherproof for outdoor use.
  • SPECIFICATIONS: Mounting depth: 2.75 inches.
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2x Harmony HA-P18WS16 Raw Replacement 18 Pro PA 1200W Sub Speaker 16 Ohm Woofer

  • Nominal Basket Diameter: 12.5”, 317.5mm / Nominal Impedance: 8 Ohmn.
  • Power Rating: Watts: 400W / Music Program: 800W..
  • Resonance: 55Hz / Usable Frequency Range : 54Hz-5kHz.
  • Sensitivity: 98.3 / Gap Height: 0.375”, 9.53mm / Voice Coil Diameter: 2.5”, 63.5mm.
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Pair of Rockford Fosgate P1650 6.5'' 2-Way Full Range Car Audio Coaxial Speakers

  • Copper pole cap in motor assembly reduces inductance and distortion.
  • Detailed, natural sounding full-range audio performance without distortion.
  • Classy copper-anodized phase plug spreads dispersion and avoids resonance.
  • Low-mass voice coil and paper cone produce detailed, non-fatiguing sound.
  • Non-resonant cast frame enhances clarity and dynamics.
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E-10 V.3 D2 - Sundown Audio 10" 500W RMS Dual 2-Ohm EV.3 Series Subwoofer

  • RMS Power = 500-watts | Xmax = 14mm one-way by 70% BL | Vented magnetic gap.
  • Vented pole piece with optimized geometry | Black Aluminum 2.5” voice coil former for superior heat dissipation | High Temperature 4-Layer copper voice coil wire.
  • Spring Loaded Terminals | Stitched-On “Mini-XL” Tinsel Leads to prevent fatigue and failure.
  • Specifications: DC Resistance (Re): 4.0 Ω | Resonance Frequency (Fs): 32.2 Hz | Equivalent Volume (Vas): 19.4 L | Electrical Q Factor (Qes): 0.38 | Mechanical Q Factor (Qms): 4.76 | Total Q Factor (Qts):0.35 | Force Factor (BL): 20.2 NA | Moving Mass (incl. Air Load) (Mms): 192.0 g | Suspension Compliance (Cms): 0.13 mm/N | Sensitivity: 84.2 dB 1w / 1m.
  • Box Recommendations: Sealed: 0.5 cu ft | Ported: 1.0 cu ft | Displacement: 0.11 ft^3 | Cutout Diameter: 8-7/8" | Outside Diameter: 10" | Depth: 5 5/8" | Recommended Tuning: 32hz | Recommended Port Area: 16 in^2.
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eMedia Singing For Dummies v2

  • Over 80 comprehensive lessons & Over 30 videos & animations demonstrating techniques.
  • Interactive feedback tells you whether you are too high, too low, or right in tune!.
  • Singing lessons teach you how to sing better with tutorials on matching pitch, essential sight reading skills, breathing, supporting your voice, understanding resonance, and more.
  • Interactive Feedback technology displays the notes you're singing on screen in notation, as the software listens to your singing via the computer microphone.
  • NewPerformance Evaluation technology - shows notes sung correctly in tune & pitch within the context of the song and then grades your performance so you can track progress.
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IDQ10 V.4 D2 - Image Dynamics 10" 1000W Peak Dual 2-Ohm IDQ V.4 Series Subwoofer

  • 12" Dual 4 ohm IDQ V.4 Series Subwoofer | Mica-reinforced polypropylene cone woofer | Parabolic roll surround | Ability to custom match the basket color to your personal installation | Conex spider with integrated tinsel leads | New V4 Metal Basket | High-temperature aluminum voice coil | Proprietary voice coil attachment design.
  • Power Handling: Peak: 1000 watts | RMS: 500 watts | Recommended Power Range: 50-500 watts.
  • Nominal Impedance (IMP): Dual 4 Ω | DC Resistance (Re): 2.90 Ω | Resonance Frequency (Fs): 30.19 Hz | Equivalent Volume (Vas): 68.93 L | Electrical Q Factor (Qes): 0.61 | Mechanical Q Factor (Qms): 4.67 | Total Q Factor (Qts): 0.54 | Peak Excursion (Xmax): 28 mm | Piston Area (Sd): 519.45 cm2 | Sensitivity: 86.80 dB 1w/1m.
  • Sealed Enclosure Suggestion: 1 cu.ft. | Ported Enclosure Suggestion: 1.5 cu.ft. | Displacement: 0.10 cu.ft. | Mounting Depth: 5.91 in | Outside Diameter: 12.46 in | Cutout: 10.87 in.
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American Bass Usa HD 15D1 4000 Watt Max Dual 1 Ohm Subwoofer

  • 2000 watts RMS 4000 watts peak 300oz magnet carbon Kevlar woven backed with Non press paper cone.
  • Points multi-layer high density foam Surround multi-pieces of new comex spiders heavy duty hi-excursion die cast basket uni-rubber gasket and rubber....
  • 3" high temperature voice coil with Ultra long windings Triple stacked 300 oz. Magnets resonance frequency (fs): 33.3 top-mount depth: 9" sensitivity:....
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American Bass Usa HD 12D2 4000 Watt Dual 2 Ohm Subwoofer

  • 2000 watts RMS 4000 watts peak 300oz magnet carbon Kevlar woven backed with Non press paper cone.
  • Points multi-layer high density foam Surround multi-pieces of new comex spiders heavy duty hi-excursion die cast basket uni-rubber gasket and rubber magnet boot.
  • 3" high temperature voice coil with Ultra long windings Triple stacked 300 oz. Magnets resonance frequency (fs): 33.3 top-mount depth: 8.11" sensitivity: 89.2 dB.
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VTech Pull and Sing Puppy

  • New Skill Development: Push or pull the playful kids toy puppy using the cord to activate music, words, and other fun sounds while building gross motor skills.
  • Colorful Buttons: 3 colorful push buttons are added to the toddler puppy toy to help promote fine motor skill development in infants and toddlers alike.
  • Language Growth: Introduce numbers, colors and parts of the body.
  • push the button to hear music and puppy sounds.
  • the perfect language development toys for 6 month old to 36 month old kids.
  • Lights & Sounds: The light-up nose flashes along with voice, sound and musical responses to capture your little one’s attention and teach responsive behavior.
  • Added Features: Requires 2 AAA batteries.
  • batteries included for demo purposes only.
  • new batteries recommended for regular use.
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