{"product_id":"prv-audio-8mr450a","title":"PRV Audio 8MR450A (Single Unit)","description":"\u003cp\u003ePRV Audio’s ALTO Series were carefully crafted and voiced to reproduce a natural, smooth sound while remaining dynamic. To get the superior fidelity, a special composite cone is used to smooth frequency response and to keep the moving mass low, increasing the efficiency.\u003c\/p\u003e\n\u003cp\u003eMeet the new improved version from 8MR400A\u003c\/p\u003e\n\u003cp\u003e• New basket design implemented, reducing its size from 3.78″ to 3.21″ mounting depth\u003cbr\u003e• Improvement on output sensitivity from 94 dB to 96 dB\u003cbr\u003e• Gain on the vocal response from 100 Hz to 2000 Hz\u003cbr\u003e• Increased on voice coil winding has improved power handle and raised its Xmax to 4.00 mm\u003c\/p\u003e\n\u003cp\u003eAll new features on the  8MR450A make it capable of high output and low distortion, this mid range is perfect for filling in the important mid range response in any high output sound system. Great Addition to the ALTO Series!\u003c\/p\u003e\n\u003cdiv class=\"wp-block-media-text alignwide has-media-on-the-right is-stacked-on-mobile\"\u003e\n\u003cfigure class=\"wp-block-media-text__media flipped\"\u003e\u003cimg alt=\"\" src=\"https:\/\/prvaudio.com\/wp-content\/uploads\/2020\/02\/8MR450A-Website-Highlights.jpg\" class=\"wp-image-9185\"\u003e\u003c\/figure\u003e\n\u003cdiv class=\"wp-block-media-text__content\"\u003e\n\u003ch4\u003e\u003cstrong\u003eHighlights\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e2″ DUAL layer CCAW voice coil wound on a glass fiber former, 8 ohms\u003c\/li\u003e\n\u003cli\u003eVentilated former to reduce power compression\u003c\/li\u003e\n\u003cli\u003eLow inductance for great transients and extended high frequency response up to 9,500 Hz\u003c\/li\u003e\n\u003cli\u003e450 watts continuous program power rating\u003c\/li\u003e\n\u003cli\u003eGreat budget choice for high output home, car, and professional audio systems\u003c\/li\u003e\n\u003cli\u003eFull copper sleeve on the pole-piece for low distortion and inductance\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003chr class=\"wp-block-separator is-style-wide\"\u003e\n\u003cdiv class=\"wp-block-media-text alignwide is-stacked-on-mobile\"\u003e\n\u003cfigure class=\"wp-block-media-text__media\"\u003e\u003cimg alt=\"\" src=\"https:\/\/prvaudio.com\/wp-content\/uploads\/2020\/02\/8MR450A-Website-Highlights-Mounting.jpg\" class=\"wp-image-9185\"\u003e\u003c\/figure\u003e\n\u003cdiv class=\"wp-block-media-text__content\"\u003e\n\u003cp\u003eThe new 8MR450A from ALTO Series has everything you want in a mid range pro audio loudspeaker, without sacrificing performance we have designed a compact and versatile footprint with only 3.21\" of mounting depth.\u003c\/p\u003e\n\u003cp\u003eThe 38 mm (1.5 in) copper clad aluminum wire is wound in a double layer using a high temperature resin adhesive on a strong ventilated glass fiber former. Also, a copper sleeve is included on the pole piece which reduces inductance to improve the high frequency response.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003chr class=\"wp-block-separator is-style-wide\"\u003e\n\u003cdiv class=\"wp-block-media-text alignwide has-media-on-the-right is-stacked-on-mobile\"\u003e\n\u003cfigure class=\"wp-block-media-text__media flipped\"\u003e\u003cimg data-wp-editing=\"1\" alt=\"\" src=\"https:\/\/prvaudio.com\/wp-content\/uploads\/2020\/02\/8MR450A-Website-Highlights-cone.jpg\" class=\"wp-image-9185\"\u003e\u003c\/figure\u003e\n\u003cdiv class=\"wp-block-media-text__content\"\u003e\n\u003cp class=\"has-normal-font-size\"\u003eA triple roll cloth surround, combined with an optimized fiber pressed paper cone, ensure the speaker’s frequency response is smooth and extended.\u003c\/p\u003e\n\u003cp class=\"has-normal-font-size\"\u003eThis professional mid range speaker is purpose-built to cover from 100 Hz to 6,000 Hz in three-way speakers, but also works great as a door speaker in car audio applications and a woofer in two-way satellite speaker concept.\u003c\/p\u003e\n\u003ch4\u003eGENERAL SPECIFICATIONS\u003c\/h4\u003e\n\u003cdiv class=\"wp-block-columns has-2-columns\"\u003e\n\u003cdiv class=\"wp-block-column\"\u003e\n\u003ctable class=\"wp-block-table is-style-stripes\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eNominal Diameter\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e8″ (203 mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eNominal impedance\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e8 Ohms\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRated AES Power Handling (RMS)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003e225 Watts\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eProgram Power\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e450 Watts\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSensitivity 2.83V at 1m\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003e96 dB\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cstrong\u003eRecommended Hi Pass Crossover**\u003c\/strong\u003e **For Full Power Handling\u003c\/td\u003e\n\u003ctd\u003e\n\u003cstrong\u003e140 Hz**\u003c\/strong\u003e **12db Per Octave Crossover\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFrequency Response at -10dB\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003e80 – 9,500 Hz\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eVoice Coil Diameter\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1.5″ (38 mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eVoice Coil Wire\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eCCAW\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eVoice Coil Winding Depth\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e11.0 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFormer Material\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eKapton\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMagnetic Gap Depth\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e6.0 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFrame Material\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eStamped Steel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"wp-block-column\"\u003e\n\u003cfigure class=\"wp-block-image\"\u003e\u003cimg alt=\"\" src=\"https:\/\/prvaudio.com\/wp-content\/uploads\/2020\/01\/PRV-Audio-8MR450A-Graphic.png\" class=\"wp-image-2070\"\u003e\u003c\/figure\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003chr class=\"wp-block-separator is-style-wide\"\u003e\n\u003ch4\u003eTHIELE-SMALL PARAMETERS\u003c\/h4\u003e\n\u003cdiv class=\"wp-block-columns has-2-columns\"\u003e\n\u003cdiv class=\"wp-block-column\"\u003e\n\u003ctable width=\"499\" class=\"wp-block-table is-style-stripes\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd width=\"50%\"\u003e\u003cstrong\u003eEquivalent Volume\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd width=\"25%\"\u003eVas\u003c\/td\u003e\n\u003ctd width=\"25%\"\u003e34.86 l\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eExcursion (mathematical)***\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eXmax\u003c\/td\u003e\n\u003ctd\u003e4.00 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFree Air Resonance\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eFs\u003c\/td\u003e\n\u003ctd\u003e65.26  Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMechanical Factor\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eQms\u003c\/td\u003e\n\u003ctd\u003e15.19\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eElectrical Factor\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eQes\u003c\/td\u003e\n\u003ctd\u003e0.57\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eTotal Factor\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eQts\u003c\/td\u003e\n\u003ctd\u003e0.55\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCone Area\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSd\u003c\/td\u003e\n\u003ctd\u003e241 cm²\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMechanical Mass\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eMms\u003c\/td\u003e\n\u003ctd\u003e13.78 g\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBl Factor\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eBl\u003c\/td\u003e\n\u003ctd\u003e7.58 Tm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDc Resistance\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eRe\u003c\/td\u003e\n\u003ctd\u003e5.8 Ohms\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eInductance\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eLe\u003c\/td\u003e\n\u003ctd\u003e0.257 mH at 1 kHz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMechanical Mass Without Air\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eMmd\u003c\/td\u003e\n\u003ctd\u003e11.67 g\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMechanical Compliance\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eCms\u003c\/td\u003e\n\u003ctd\u003e0.432 mm\/N\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e***Xmax=(Voice coil winding depth-Magnetic Gap depth)\/2+ Mgnetic Gap Depth\/4\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"wp-block-column\"\u003e\n\u003cfigure class=\"wp-block-image\"\u003e\u003cimg alt=\"\" src=\"https:\/\/prvaudio.com\/wp-content\/uploads\/2020\/01\/PRV-Audio-8MR450A-Impedance.png\" class=\"wp-image-2070\"\u003e\u003c\/figure\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003chr class=\"wp-block-separator is-style-wide\"\u003e\n\u003ch4\u003eEXTRA INFO\u003c\/h4\u003e\n\u003cdiv class=\"wp-block-columns has-2-columns\"\u003e\n\u003cdiv class=\"wp-block-column\"\u003e\n\u003ctable class=\"wp-block-table is-style-stripes\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOverall Diameter\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e8.22″ (209 mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFront Mount Baffle Cutout\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e7.26″ (184.5 mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMounting Depth\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e3.21″ (81.5 mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOverall Depth\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e3.50″ (89 mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eNet Weight\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e4.63 Lbs (2.10 kg)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eShipping Weight\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e5.07 Lbs (2.30 kg)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCarton Dimensions W x L x H\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e8.66 x 8.66″ x 4.17″ (220 x 220 x 106 mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"wp-block-column\"\u003e\n\u003cfigure class=\"wp-block-image\"\u003e\u003cimg alt=\"\" src=\"https:\/\/prvaudio.com\/wp-content\/uploads\/2020\/01\/PRV-Audio-8MR450A-Loudspeaker.png\" class=\"wp-image-2070\"\u003e\u003c\/figure\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"PRV Audio","offers":[{"title":"Default Title","offer_id":43066626408599,"sku":"R8MR450AD","price":49.91,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0556\/0326\/5687\/products\/BV4JxExhORay8x8661XzhtRYTP0Y4ARrAy5xcCX4.jpg?v=1681959353","url":"https:\/\/ratchetbaggers.com\/products\/prv-audio-8mr450a","provider":"Ratchet Baggers","version":"1.0","type":"link"}