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B08M9JCT9R Price: $213.99 Score: 1000.000 Category: Electronics Rating: 5 Votes: 3 Find similar products IMAGE DYNAMICS IDQS8 8 125W RMS Shallow Mount SUBWOOFER Speaker (IDQS8-D2 \| 125W RMS). IDQS8 D2 \| 8 125W RMS Dual 2-Ohm Shallow Subwoofer FEATURES: SPECIFICATIONS: Features: High Excursion Design allows acoustically linear bass output at all rated power levels. Parabolic Santoprene Surround to ensure cone linearity and control. Poly/Mica Cone for strong and distortion free bass reproduction while still reproducing all the musical nuances. Nomex Spider for consistent control throughout the piston range and life of the woofer. Poly Carbonate Neck Joint allows the woofer to handle more raw power without any mechanical failure or flex and isolate the heat from the BASV voice coil former from the cone. American Made Flat Wound Extended Voice Coil gives our woofers higher magnetic flux (strength) and more voice coil “traction” in the magnetic gap with over 1.75” of linear travel in the magnetic gap. Extended Y-35 Motor Structure allows the voice coil to move freely without any mechanical bottoming out while producing a very powerful flux field. Field Replaceable Cone Assembly can be changed in 10 minutes with only 16 screws and alignment shims that come with our recone kits. Parameters: Power Handling: 125W RMS 250W Peak VC Impedance: 2-Ohms + 2-Ohms Test Impedance: 1-Ohm Driver Displacement: 0.03 Fs: 53 Hz SD: 213.82 sqCM Vas: 5.379 Ltr Cms: 98.67 M/N Mms: 92.033 g BL: 5.109 Qms: 3.607 Qes: 1.346 Qts: 0.98 No: 0.0683% Spl: 82 dB Xmax: 7mm Voice Coil: 1.5 Voice Coil Height: 0.87 Voice Coil Type: Kapton Former Voice Coil Wire: Copper DC Resistance: 1.15 Ohms Voice Coil Induct at 1kHz: 0.37 MH Frequency Response: 50-500Hz Resonant Freq: 53 Fs Hz HE-Magnetic Gap Height: 0.314 Motor Structure: 21.69 oz Mounting Depth: 3.11 Cutout Diameter: 7.18.	B0032FOJJ8 Availability: Currently unavailable Score: 10.000 Category: Electronics Rating: 5 Votes: 5 Find similar products Clarion WQ2510D 10 Dual Voice Coil 4-Ohm Subwoofer. Product Description Clarion's WQ series subs include dual gold-plated terminal blocks; custom-stamped, steel powder-coated chassis; and accommodate 1500 watts of max power handling with 500 watts of continuous raw power. They include aluminum finished top cones, high-excursion rubber surrounds and dual strontium magnets. The WQ2510D is a a 10-inch dual 4-Ohm voice coil subwoofer with 1500 watts maximum power handling. Amazon.com Clarion's WQ series subs include dual gold-plated terminal blocks; custom-stamped, steel powder-coated chassis; and accommodate 1500 watts of max power handling with 500 watts of continuous raw power. They include aluminum finished top cones, high-excursion rubber surrounds and dual strontium magnets. The WQ2510D is a a 10-inch dual 4-Ohm voice coil subwoofer with 1500 watts maximum power handling. Raw power, cutting edge styling and technologically advanced features. Click to enlarge. Aluminum-finished top cone with high-excursion rubber surround. Speaker dimensions. Dual 4-Ohm Heavy Duty Voice Coils Clarion's systems use dual voice coils to deliver perfect playback of large-amplitude bass. These coils also provide high sensitivity and excellent performance for digital audio and other large input sounds. Dual voice coils also give you flexible wiring options, enabling you to wire in parallel or series, or power with a non-bridgeable amp. Aluminumized Composite Dust Cap A stronger dust cap results in a stronger cone. Reinforced FRP/ Paper Cone Design These light and rigid speaker cones create low-distortion sound. Nitrile Butadiene Rubber High Excursion Surround The rolled edge of the diaphragm provides superior response, while its butyl material is highly durable and moisture resistant. The result is a special rubber surround that cuts distortion and further improves linearity. Strontium Ferrite Magnets A high-conductivity magnet is used in Clarion's speaker systems to obtain an airgap magnetic flux density significantly higher than that obtained from ferrite magnets. Combining this magnet with the heat-resistant voice coil results in speakers that are able to deliver powerful playback at large inputs with improved damping while maintaining the integrity of the digital source. Hyper Extended Rear-Vented Pole Piece To prevent pressure from building up inside the center cap and causing increased amplitude distortion, a vent is provided on the rear of the pole piece, resulting in completely smooth cone movement, which contributes to the open, airy sound of the speakers. S.E.T. (Spider Exhaust Technology) Cooling Heat is the number one enemy of speakers. All of Clarion's Ultra and Platinum woofer drivers feature S.E.T. (Spider Exhaust Technology) Cooling, to allow hot air to escape the speaker's internal motor assembly via computer designed porting. Dual Gold-Plated Terminal Blocks Rust-resistant and highly conductive. WQ2510D Specifications Max Power Handling: 1500 Watts Max Power Handling: 1500 Watts Continuous Power Handling: 500 Watts Continuous Power Handling: 500 Watts Frequency Response: 30-1000 Hz Frequency Response: 30-1000 Hz Efficiency: 82 dB/W/m Efficiency: 82 dB/W/m Number of Voice Coils: 2 Number of Voice Coils: 2 Impedance: 4+4 Ohm Impedance: 4+4 Ohm Outside Dimension: 9-25/32 inches Outside Dimension: 9-25/32 inches Mounting Depth: 5-15/32 inches Mounting Depth: 5-15/32 inches Enclosure Size: 0.4-1.2 feet What's in the Box Clarion WQ2510D 10 Dual Voice Coil 4-Ohm Subwoofer Enclosure Size: 0.4-1.2 feet What's in the Box Clarion WQ2510D 10 Dual Voice Coil 4-Ohm Subwoofer.
B07P13DX96 Availability: Currently unavailable Score: 8.547 Category: Electronics Rating: 4.5 Votes: 2 Find similar products DC AUDIO M3-6 D4 SUB 6.5 600W Dual 4-OHM CAR SUBWOOFER BASS Speaker WOOFER New. The m3 6 is an 6.5 long X-Max subwoofer. Long hours in the R&D department is what it took to develop the newest version of our 6.5 subwoofer. We designed a tall roll stitched surround, oversized spiders, and a tall cast frame that allows for extreme amounts of cone travel. All of these newly designed parts allow for lower frequency reproduction. The bolted down spaced spider design keeps it all linear. The m3 6 uses a gap cooled design to allow the 2 copper coil to thermally take more power than other 2 coil motors with the traditional pole venting. Sub Size6.5 Mounting Depth5 Mounting Hole Diameter5.82 Outside Driver Diameter7.16 Weight80oz Magnet Materialferrite VC Diameter2Copper Displacement.05³ ft Power Handling RMS/Peak300/600 Impedance (Ohm)D2/D4 Sd14.314cm² Vas3.464L Cms119 um/n Mms92.57 g Fs47.9Hz BL14.4 N/A Re4 Ohm Le Qms3.126 Qes0.537 Qts0.456 Xmax16mm Ref SPL @ 1 watt80.4 Suggested Sealed.15 Suggested Ported .3³ ft.	B0032FOKQU Availability: Currently unavailable Score: 8.403 Category: Electronics Rating: 3.5 Votes: 97 Find similar products BOSS Audio Systems P12DVC Phantom 12 Inch Dual Voice Coil 4 Ohm 2000-Watt Subwoofer. Product Description View larger Specifications 12 inch, 2000 watt dual 4 Ohm voice coil subwoofer 12 inch, 2000 watt dual 4 Ohm voice coil subwoofer Impedance: 4 Ohms Impedance: 4 Ohms Resonant frequency: 42Hz Resonant frequency: 42Hz Sensitivity: 86 dB @ 1 W/1 m Sensitivity: 86 dB @ 1 W/1 m Mounting depth: 6-1/8” (155mm) Mounting depth: 6-1/8” (155mm) What Comes In The Box? Instruction manual Instruction manual Paper template Paper template View larger Surround – Butyl Rubber Butyl rubber is a synthetic (man made) rubber and is valued for its chemical inertness, impermeability to air, and ability to endure or resist exposure to many types of weather fronts. Butyl rubber has applications from sports equipment to automotive parts, the medical industry and more. In this product they are used for the surrounds that connect the cone to the basket. Just like chewing gum, the butyl rubber surround in our speakers can take a significant amount of abuse without coming apart. View larger Cone – Poly Injection Polyurethane, a substance categorized as a polymer, is a resilient and durable manufactured material that can take the place of paint, cotton, rubber, metal, or wood in thousands of applications across virtually all fields. It can be hard like fiberglass, squishy like upholstery foam, protective like varnish, bouncy like rubber, or sticky like glue. In the specific case of our cones, this material allows for maximum give that produces great sounding speakers that will last a long time. View larger Voice Coil – High Temperature Aluminum One of the most abundant elements on earth, aluminum is remarkable for its low density and for its ability to resist corrosion. It is nonmagnetic (does not have any magnetic properties) and does not easily ignite. This solid material has the ability to perform under stress in both high tension and high compression environments. Aluminum is relatively soft, making it an ideal material to use in voice coils. Amazon.com Low-frequency sound reproduction is the first thing you'll notice when you hear a Boss Audio Phantom sub. The subcussion you feel comes next. Combine that with wicked cosmetics and you've got a sub that's ready to perform in any application. The P12DVC is a 12-inch subwoofer with a dual 4-ohm voice coil delivering 2000 watts peak power. P12DVC Specifications Power Handling, Peak: 2000 Watts Power Handling, Peak: 2000 Watts Power Handling, RMS: 1000 Watts Power Handling, RMS: 1000 Watts Cone Material: Electroplate Injection Cone Cone Material: Electroplate Injection Cone Voice Coil: 2-1/2-inch Voice Coil: 2-1/2-inch Efficiency (1 Watt/1 Meter): 96dB Efficiency (1 Watt/1 Meter): 96dB Frequency Response: 25Hz - 1.5kHz Frequency Response: 25Hz - 1.5kHz Impedance: Dual 4 Ohm Impedance: Dual 4 Ohm Mounting Depth: 6-1/8 Inches What's in the Box Boss P12DVC 12 Subwoofer Dual 4-Ohm Voice Coils Mounting Depth: 6-1/8 Inches What's in the Box Boss P12DVC 12 Subwoofer Dual 4-Ohm Voice Coils.
B00UF3MZ5K Availability: Currently unavailable Score: 8.403 Category: Electronics Rating: 3.7 Votes: 95 Find similar products BOSS Audio Systems P12DVC Phantom 12 Inch Dual Voice Coil 4 Ohm 2000-Watt Subwoofer. Product Description View larger Specifications 12 inch, 2000 watt dual 4 Ohm voice coil subwoofer 12 inch, 2000 watt dual 4 Ohm voice coil subwoofer Impedance: 4 Ohms Impedance: 4 Ohms Resonant frequency: 42Hz Resonant frequency: 42Hz Sensitivity: 86 dB @ 1 W/1 m Sensitivity: 86 dB @ 1 W/1 m Mounting depth: 6-1/8” (155mm) Mounting depth: 6-1/8” (155mm) What Comes In The Box? Instruction manual Instruction manual Paper template Paper template View larger Surround – Butyl Rubber Butyl rubber is a synthetic (man made) rubber and is valued for its chemical inertness, impermeability to air, and ability to endure or resist exposure to many types of weather fronts. Butyl rubber has applications from sports equipment to automotive parts, the medical industry and more. In this product they are used for the surrounds that connect the cone to the basket. Just like chewing gum, the butyl rubber surround in our speakers can take a significant amount of abuse without coming apart. View larger Cone – Poly Injection Polyurethane, a substance categorized as a polymer, is a resilient and durable manufactured material that can take the place of paint, cotton, rubber, metal, or wood in thousands of applications across virtually all fields. It can be hard like fiberglass, squishy like upholstery foam, protective like varnish, bouncy like rubber, or sticky like glue. In the specific case of our cones, this material allows for maximum give that produces great sounding speakers that will last a long time. View larger Voice Coil – High Temperature Aluminum One of the most abundant elements on earth, aluminum is remarkable for its low density and for its ability to resist corrosion. It is nonmagnetic (does not have any magnetic properties) and does not easily ignite. This solid material has the ability to perform under stress in both high tension and high compression environments. Aluminum is relatively soft, making it an ideal material to use in voice coils. Amazon.com Low-frequency sound reproduction is the first thing you'll notice when you hear a Boss Audio Phantom sub. The subcussion you feel comes next. Combine that with wicked cosmetics and you've got a sub that's ready to perform in any application. The P12DVC is a 12-inch subwoofer with a dual 4-ohm voice coil delivering 2000 watts peak power. P12DVC Specifications Power Handling, Peak: 2000 Watts Power Handling, Peak: 2000 Watts Power Handling, RMS: 1000 Watts Power Handling, RMS: 1000 Watts Cone Material: Electroplate Injection Cone Cone Material: Electroplate Injection Cone Voice Coil: 2-1/2-inch Voice Coil: 2-1/2-inch Efficiency (1 Watt/1 Meter): 96dB Efficiency (1 Watt/1 Meter): 96dB Frequency Response: 25Hz - 1.5kHz Frequency Response: 25Hz - 1.5kHz Impedance: Dual 4 Ohm Impedance: Dual 4 Ohm Mounting Depth: 6-1/8 Inches What's in the Box Boss P12DVC 12 Subwoofer Dual 4-Ohm Voice Coils Mounting Depth: 6-1/8 Inches What's in the Box Boss P12DVC 12 Subwoofer Dual 4-Ohm Voice Coils.	B00QXWI1O6 Availability: Currently unavailable Score: 7.874 Category: Electronics Rating: 5 Votes: 2 Find similar products Retro Manufacturing R-TW84 Ultra Thin Subwoofer 8 4 Ohm Voice Coil, 250W RMS, 500W Peak Power. The new Retro Sound R-TW8 Series shallow-mount subwoofers offer exceptional performance in an ultra-thin design for use in small enclosures. Neodymium magnets offer high power handling with a mounting depth of just 2 inches. These subwoofers are built on a rigid cast-aluminum basket and feature injected poly-mica cones and Santoprene surrounds for smooth, natural, distortion-free bass reproduction. The R-TW82 and R-TW84 are optimized for . 12 to 1 cubic foot sealed enclosures to offer a wide variety of installation applications for limited spaces. These subwoofers feature a vented pole piece and a single 1 3/4-inch voice coil on a Kapton former. Power handling is 250 watts RMS / 500 watts maximum. Available in either 2 ohm (R-TW82) or 4 ohm (R-TW84). See the owner's manual for tips on building the proper enclosure for your R-TW8 Series subwoofer.
B008BWA10I Price: $34.84 Score: 7.634 Category: Electronics Rating: 4.2 Votes: 74 Find similar products 12 Woofer with Poly Cone and Rubber Surround 120W RMS at 8ohm. Ideal in two or three way applications, or as a subwoofer Suitable for sealed or vented enclosures 120W/240W RMS/peak Polypropylene coneRubber surround1.5 voice coil24oz. magnet Sensitivity: 91dB (W/M)Impedance: 8ohmRe: 7.2ohmLe: 0.91mHFrequency response: 50Hz~5KHzFs: 42HzQts: 0.47Qes: 0.57Qms: 3.24Vas: 122.6 litersXmax: 5mmOverall frame diameter: 12.20Required cutout: 10.95Mounting depth: 5.04.	B004CT2ADK Availability: Currently unavailable Score: 7.634 Category: Electronics Rating: 5 Votes: 7 Find similar products C5-525. 2-Way Component System: 5.25-inch (130 mm) Woofer, 0.75-inch (19 mm) Silk Dome Tweeter The smoothness and transparency of a high-end silk dome tweeter combines with top-flight component woofer performance to create a loudspeaker system with exceptional refinement and dynamic capability. The C5-525 system features 5.25-inch (130 mm) component woofers with Kurt MÃ¼ller cones and suspensions and die-cast alloy baskets. The woofer design benefits from JL Audio's vast woofer design experience and advanced modeling systems. The C5 component tweeters are built with 0.75-inch silk dome diaphragms that deliver smooth, extended response, on and off axis. Flush-mounting and surface-mounting fixtures are included to fit a wide variety of installation needs. The flush-mount fixtures feature our RSR (Ratcheting Swivel Rotation) mechanism to allow precise tweeter aiming after installation. C5 crossover networks are compact and built with premium component parts, including MylarÂ® capacitors and segmented air-core inductors. Four levels of tweeter attenuation are provided, as well as three levels of mid-range presence adjustment, for twelve possible voicing combinations! Woofer grilles are included, each consisting of a black grille tray and a black steel mesh grille with an electroformed JL Audio logo. Sonic character: Smooth and balanced Made in Germany, Sold as a pair. Continuous Power Handling (RMS) 75 W Recommended Amplifier Power (RMS) 25 - 150 W / Ch. System Efficiency 88.5 dB @ 1 W / 1 m System Nominal Impedance 4 Î© System Frequency Response 53 Hz - 25 KHz Â± 3 dB Frame Outer Diameter* (A) 5.80 in / 147 mm Grille Tray Outer Diameter (B) 6.02 in / 153 mm Motor Outer Diameter (C) 3.15 in / 80 mm Frontal Coaxial Tweeter Protrusion (D) N/A Frontal Grille Protrusion* (E) 0.92 in / 23 mm Mounting Hole Diameter (F) 4.48 in / 114 mm Mounting Depth (G) 2.23 in / 57 mm Does not take into account mounting tabs Does not take into account logo badge **Frontal grille protrusion measured from mounting surface Flush Mount Fixture Diameter (A1) 1.75 in / 44.5 mm Surface Mount Fixture Diameter (A2) 1.61 in / 41 mm Flush Mount Mounting Hole Diameter (B) 1.50 in / 38 mm Flush Mount Mounting Depth (C) 0.56 in / 14.2 mm Flush Mount Protrusion (D1) 0.36 in / 9.1 mm Surface Mount Protrusion (D2) 0.87 in / 22 mm Width (W) 3.36 in / 85 mm Height (H) 1.44 in / 37 mm Depth (D) 4.72 in / 120 mm Dynamic Motor Analysis - DMA Optimized Motor Summary: JL Audio's proprietary Dynamic Motor Analysis system is a powerful suite of FEA-based modeling systems, first developed by JL Audio in 1997 and refined over the years to scientifically address the issue of speaker motor linearity. This leads to vastly reduced distortion and faithfully reproduced transients... or put simply: tight, clean, articulate bass. Detailed Information: Since 1997, JL Audio has been at the forefront of Finite Element Analysis-based modeling of loudspeaker motors and suspensions. This research is aimed at decoding what we refer to as the Loudspeaker Genome... a project aimed at understanding the true behavior of loudspeakers under power and in motion. A major component of this integrated system is DMA (Dynamic Motor Analysis). Starting with the 15W3 and the W7 Subwoofers in the late 1990's and early 2000's, DMA has played an important role in the design of all JL Audio woofers sold today, including our component woofers. DMA is a Finite Element Analysis (FEA)-based system, meaning that it takes a large, complex problem, breaks it down into small solution elements for analysis and then assembles the data to form an accurate, big-picture solution. DMA's breakthrough is that it actually considers the effects of power through the coil as well as coil/cone position within the framework of a time-domain analysis. This gives us a highly accurate model of a speaker's actual behavior under real power, something that the traditional Thiele-Small models or other low power measurements cannot do. Because DMA does not rely on a steady-state model, it is able to consider shifts in the circuit elements being analyzed. These modeling routines are intense, requiring hours to run for a whole speaker. DMA is able to analyze the real effects of fluctuating power and excursion upon the magnetic circuit of the motor, specifically the dynamic variations of the fixed magnetic field. This delivers intensely valuable information compared to traditional modeling, which assumes that the fixed field produced in the air gap by the magnet and the motor plates is unchanging. DMA not only shows that this fixed field changes in reaction to the magnetic field created by current flowing through the voice coil, but it helps our engineers arrive at motor solutions that minimize this instability. Analyzing this behavior is critical to understanding the distortion mechanisms of a speaker motor and sheds light on the aspects of motor design that determine truly linear behavior: Linear motor force over the speaker's operational excursion range Consistent motor force with both positive and negative current through the coil Consistent motor force at varying applied power levels Â Our ability to fully analyze these aspects of motor behavior allows our transducer engineers to make critical adjustments to motor designs that result in extremely linear, highly stable dynamic loudspeaker motor systems. The payoff is reduced distortion, improved transient performance and stellar sound quality. Elevated Frame Cooling Summary: JL Audio's patented Elevated Frame Cooling design delivers cool air through slots directly above the top-plate to the voice coil of the speaker. This not only enhances power handling, but also sound quality by minimizing dynamic parameter shifts and power compression. Detailed Information:Many speakers employ venting techniques to enhance voice coil cooling. This is typically accomplished by having big holes in the sides of the frame just below the spider attachment shelf. While it provides a modest cooling benefit, this low-velocity air-flow does not blow directly or strongly on the voice coil. Our patented design improves upon this cooling technique in a number of ways. By elevating the frame above the top-plate of the motor (via stand-offs integrated into the bottom of the frame) a narrow, high-velocity air-path is created between the bottom surface of the frame and the top surface of the top-plate. This air path leads directly to the voice coil and then turns upward into the spider air cavity. By utilizing the pumping action of the spider through this focused air path, a large volume of cool air hits the coil windings directly. Another important benefit is that the upper surface of the top-plate (one of the speaker's hottest parts) is directly exposed to cooling air flow, whereas on a conventional design it is isolated from the air flow by the lower flange of the frame. The elevated frame technology greatly increases thermal power handling, reduces compression effects and does so without any additional parts. Dr. Kurt Muller & Co. Summary: The best sound requires cones and suspensions made to the highest standards in the world. Detailed Information: When the goal is superior component woofer performance, the things that truly matter are: consistency in cone mass, cone thickness and suspension compliance. This is why we turn to our partners at Germany's Dr. Kurt MÃ¼ller & Co. for critical cone and suspension elements in our top-flight component woofers. Their track record of manufacturing precision and meticulous quality control is very well established in the loudspeaker industry; although most loudspeaker manufacturers prefer to avoid the premium that this quality commands. While it has become fashionable to use stiff, exotic materials for component speaker cones, these tend to create upper mid-range colorations that require aggressive crossover designs and/or equalization to control. By contrast, MÃ¼ller's low mass, mineral-filled polypropylene cones and butyl rubber surrounds are inherently well damped to deliver an uncolored, neutral midrange without any artificial flavoring. This keeps crossover design simple and renders a smooth, clean mid-range presentation, on and off axis. Â Dr. Kurt Muller & Co. also supplies the symmetrical-roll, hybrid-weave spiders used in the ZR woofers. Silk Dome Tweeter Light, fast moving silk dome material promotes high-frequency accuracy.Â Summary: Detailed Information:Silk is a natural material with inherently good characteristics as a tweeter diaphragm. In addition to being very light in weight, silk exhibits excellent damping properties, which reduces ringing and resonances in the tweeterâs passband, leading to a smooth, pleasing high-frequency character free from unnatural sibilance or exaggerated brightness. Compared to a harder material dome, a silk tweeter does not exhibit as much ultra-high frequency extension, but is preferred by many audiophiles for its overall balance. Download Â C5-525 Product Manual Â USA Limited Warranty: Â One (1) year from the original date of purchase Warranty Details Â Find the answers to many common questions: Â.
B00GA7SYH8 Price: $19.7 Score: 7.519 Category: Electronics Rating: 4.1 Votes: 52 Find similar products Dayton Audio ND25FN-4 1 Silk Dome Neodymium Tweeter Element 4 Ohm. Quick Overview Compact soft dome tweeter element with high output and smooth, low-distortion sound. The high-strength neodymium motor features an aluminum heat sink for cool operation and reduced power compression. Product Highlights 1 treated silk dome diaphragm Faceplate-free design enables versatile custom mounting High-strength neodymium motor with heatsink and ferrofluid cooling Extremely smooth and extended treble response beyond 22kHz Perfect for use with a waveguide or custom mounting plate Product Manuals / Spec Sheets / Downloads Dayton Audio ND25FN-4 Specification Sheet Dayton Audio ND25FN-4 Data Files AddThis Sharing Buttons Share to FacebookFacebook Share to TwitterTwitter Share to MoreAddThis 2 Product Description Dayton Audio’s ND25FN-4 is a versatile 1” tweeter element for use in highly customized applications requiring smooth, clean treble output. The treated silk dome diaphragm delivers excellent detail and smoothness, while the high-strength neodymium magnet enables high output from an extremely compact size. The rear-mounted heatsink and ferrofluid-filled magnetic gap provide improved heat dissipation from the compact motor structure, for reduced power compression at high levels. A copper pole cap further reduces distortion and inductance effects. This element is identical to the round-faceplate ND25FA-4 model, but with no faceplate installed. It’s perfect for installation into a waveguide or a custom mounting plate, or in limited clearance applications such as automotive A-pillars. Simply bond the unit in place from behind, and prepare to be surprised at the clean, detailed output! Product Details Speaker Series ND Series Model Number ND25FN-4 List Price $19.99 Color Black Unit of Measure Each UPC 848791000867 Warranty - Parts 5 Years Warranty - Labor 5 Years Product Shipping Weight (lbs.) 0.13 Speaker Type Tweeter Power Handling (RMS) 20 watts Power Handling (max) 40 watts Continuous Program Power -- Impedance 4 ohms Sensitivity 90 dB @ 2.83V/1m Frequency Response 2 500 - 20 Voice Coil Diameter 25 mm Magnet Weight -- DC Resistance (Re) 3.3 ohms Voice Coil Inductance (Le) 0.05 mH Resonant Frequency (Fs) 1 290 Hz Mechanical Q (Qms) 4.61 Electromagnetic Q (Qes) 2.54 Total Q (Qts) 1.64 Diaphragm Mass Inc. Airload (Mms) -- Moving Mass Of Diaphragm (Mmd) -- Mechanical Compliance of Suspension (Cms) -- Surface Area Of Cone (Sd) 7.5 cm² Volume of Displacement (Vd) -- BL Product (BL) -- Compliance Equivalent Volume (Vas) -- Maximum Linear Excursion (Xmax) -- Drivers Mechanical Losses (Rms) -- Cone / Diaphragm Material Treated Silk Dome Entry / Exit Diameter -- Surround Material Treated Silk Voice Coil Wire Material Copper Voice Coil Former Kapton® Basket/Frame Material -- Magnet Material Neodymium Overall Outside Diameter 41 mm Overall Depth 21 mm Baffle Cutout Diameter 34 mm # Mounting Holes 4 Mounting Hole Diameter -- Bolt Circle Diameter -- Product Weight -- Cone / Dome Diameter 1.	B07CMFCPTM Price: $149.95 Score: 7.463 Category: Electronics Rating: 4.8 Votes: 10 Find similar products Memphis Audio SRXS1040 10 Street Reference Single 4-Ohm Shallow Mount Subwoofer - 250 wRMS. Street Reference subwoofers are the perfect blend of value and performance. You don't have a sacrifice quality to stay within a budget. Upgrade your system without breaking the bank with Street Reference. the unmatched performance and value of SR subwoofers is expanding to bring big bass to any space. SR slim subwoofers feature a mounting depth of under 4” and handle an impressive 500W peak power. Get the perfect bass upgrade quickly in any application with Street Reference. Features: 12 AWG compression terminals Anodized aluminum voice coil former Optimized for sealed or ported enclosures Sub cone design for greater efficiency Polypropylene cone for improved durability Progressive poly cotton spider for controlled motion resulting in lower distortion Rubber surround for improved durability Specifications: Size (in) 10 RMS Power (w) 250 Peak Power (w) 500 Sensitivity (dB) 84 Magnet Size (Oz) 40 Mounting Depth (in) 3.30 Cut Out Diameter (in) 9.22 Voice Coil Diameter (in) 2 Warranty 1 year **PRXG10 GRILLS Fit 10 SA SUBWOOFERS (GRILLS NOT INCLUDED).