{"product_id":"h3-high-fidelity-3-midrange","title":"H3 – High Fidelity 3″ midrange","description":"\u003ch1\u003eOverview\u003c\/h1\u003e\n\u003cp\u003eThe High Fidelity H3 midrange is a high stroke, low distortion wideband midrange.  This midrange has high stroke, very wide bandwidth, and high power handling.  It features a 31.8mm \/ 1.26” voice coil diameter for high power handling and motor force.\u003c\/p\u003e\n\u003cp\u003eThe H3 midrange features an optimized over hung coil design which provides ±2.5mm of linear excursion.\u003c\/p\u003e\n\u003cp\u003eThe H3 has integral shorting rings within its magnetic structure. These features result in exceptionally low inductance at all operational frequencies and across stroke.  This further extends bandwidth as well as reduces motional inter-modulation distortion for a much more open and natural midrange.\u003c\/p\u003e\n\u003cp\u003eThe H3 uses a woven strand-oriented polymer thermo-set cone.  This cone features very high strength due to the strand orientation of the polyolefin monomer chains, and exceptional internal damping from the polyolefin itself.  The thermal fusing ensures an air-tight surface without degrading the woven feature and strand orientation.  The result is a cone with great tensile strength, vastly superior internal damping as compared to carbon and glass fibers.\u003c\/p\u003e\n\u003cp\u003eThe H3 features a custom tooled basket, surround, cone, and spider which results in a very shallow mounting depth so the midrange can be placed as high as possible within a vehicle, to raise the stereo image up near the head of the listener.\u003c\/p\u003e\n\u003ch2\u003eCrossover Frequency and power handling\u003c\/h2\u003e\n\u003cp\u003eThe H3 midrange is a wideband speaker.  A low pass filter for blending with a tweeter would be dependent upon the tweeter and location of tweeter and the H3.  As the H3 naturally rolls off above 12 kHz, it can often be used as a near-full-range speaker without a low pass filter applied.\u003c\/p\u003e\n\u003cp\u003eThe following table summarizes general guidelines for a high pass filter for use with the H3.  As noted above, this is not a hard-and-fast set of limits, and the final installation needs to be considered when setting actual crossover values and gains.\u003c\/p\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd width=\"60\"\u003e\u003cstrong\u003ePower\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd width=\"138\"\u003e\u003cb\u003e6dB\/Oct\u003c\/b\u003e\u003c\/td\u003e\n\u003ctd width=\"144\"\u003e\u003cstrong\u003e12dB\/Oct\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd width=\"165\"\u003e\u003cstrong\u003e18dB\/Oct\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd width=\"117\"\u003e\u003cb\u003e24dB\/Oct\u003c\/b\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"60\"\u003e50W\u003c\/td\u003e\n\u003ctd width=\"138\"\u003e400 Hz\u003c\/td\u003e\n\u003ctd width=\"144\"\u003e330 Hz\u003c\/td\u003e\n\u003ctd width=\"165\"\u003e300 Hz\u003c\/td\u003e\n\u003ctd width=\"117\"\u003e280 Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"60\"\u003e100W\u003c\/td\u003e\n\u003ctd width=\"138\"\u003e700 Hz\u003c\/td\u003e\n\u003ctd width=\"144\"\u003e400 Hz\u003c\/td\u003e\n\u003ctd width=\"165\"\u003e350 Hz\u003c\/td\u003e\n\u003ctd width=\"117\"\u003e325 Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"60\"\u003e200W\u003c\/td\u003e\n\u003ctd width=\"138\"\u003e800 Hz\u003c\/td\u003e\n\u003ctd width=\"144\"\u003e500 Hz\u003c\/td\u003e\n\u003ctd width=\"165\"\u003e450 Hz\u003c\/td\u003e\n\u003ctd width=\"117\"\u003e400 Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"60\"\u003e\u003c\/td\u003e\n\u003ctd width=\"138\"\u003e\u003c\/td\u003e\n\u003ctd width=\"144\"\u003e\u003c\/td\u003e\n\u003ctd width=\"165\"\u003e\u003c\/td\u003e\n\u003ctd width=\"117\"\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch2\u003e\u003c\/h2\u003e\n\u003cp\u003eNote that with lower power applications, these frequencies may be adjusted down; with higher power, you may need to adjust the frequencies up.  Again, the actual implementation of the entire system needs to be considered when installing these products.  A small sealed chamber behind the midrange can increase mechanical power handling, but may negatively impact thermal power handling.\u003c\/p\u003e\n\u003cp\u003e\u003cimg class=\"alignnone wp-image-6728\" src=\"https:\/\/adcaraudio.com\/store\/wp-content\/uploads\/H3-dimensions-1024x579.jpg\" alt=\"\" width=\"843\" height=\"477\"\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch2\u003e\u003cimg class=\"alignnone wp-image-6729\" src=\"https:\/\/adcaraudio.com\/store\/wp-content\/uploads\/H3-Klippel_Page_2_Image_0001.jpg\" alt=\"\" width=\"832\" height=\"390\"\u003e\u003c\/h2\u003e\n\u003ch2\u003eThiele Small Parameters\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd width=\"312\"\u003eNominal Impedance\u003c\/td\u003e\n\u003ctd width=\"312\"\u003e4 Ohms\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"312\"\u003eNominal SPL\u003c\/td\u003e\n\u003ctd width=\"312\"\u003e82.96 dB @ 1W, 1m (86.76 dB @ 2.83Vrms, 1m)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"312\"\u003eResonant Frequency (Fs)\u003c\/td\u003e\n\u003ctd width=\"312\"\u003e194 Hz ±10%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"312\"\u003eTotal System Q (Qts)\u003c\/td\u003e\n\u003ctd width=\"312\"\u003e0.779±15%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"312\"\u003eEquivalent Volume Air (Vas)\u003c\/td\u003e\n\u003ctd width=\"312\"\u003e0.162 liters  ±15%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"312\"\u003eMotor Force (BL)\u003c\/td\u003e\n\u003ctd width=\"312\"\u003e3.938 N\/A  ±10%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"312\"\u003eInductance at 1 kHz (Le)\u003c\/td\u003e\n\u003ctd width=\"312\"\u003e0.09 mH  ±5%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"312\"\u003eDC Resistance (DCR)\u003c\/td\u003e\n\u003ctd width=\"312\"\u003e3.35 Ohms  ±5%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"312\"\u003eMoving Mass (Mms)\u003c\/td\u003e\n\u003ctd width=\"312\"\u003e3.579 grams  ±10%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"312\"\u003eElectrical Q (Qes)\u003c\/td\u003e\n\u003ctd width=\"312\"\u003e0.942 ±10%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"312\"\u003eMechanical Q (Qms)\u003c\/td\u003e\n\u003ctd width=\"312\"\u003e4.5 ±15%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"312\"\u003eDiaphragm Surface Area (Sd)\u003c\/td\u003e\n\u003ctd width=\"312\"\u003e24.59 cm²±2%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"312\"\u003eLinear Excursion (Xmax)\u003c\/td\u003e\n\u003ctd width=\"312\"\u003e2.5mm one way  ±5%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e","brand":"Audio Dynamics","offers":[{"title":"Default Title","offer_id":52549562073319,"sku":"H3","price":449.0,"currency_code":"USD","in_stock":true}],"url":"https:\/\/www.mediocrecustoms.com\/products\/h3-high-fidelity-3-midrange","provider":"Mediocre Customs","version":"1.0","type":"link"}