files/spk-8s-upright-grille_2.jpg
files/spk-8s-front-grille_1.jpg
files/spk-8s-right-grille_1.jpg
files/spk-8s4-rear-right.jpg
files/spk-8s-upright_1.jpg
files/spk-8s-front_1.jpg
files/spk-8s-right_1.jpg

AudioControl SPK-8S4

Regular price: $199.00

Regular price: $199.00

Quantity

{"id":8208184803524,"title":"AudioControl SPK-8S4","handle":"audiocontrol-spk-8s4","description":"\u003ch3\u003e\n\u003cspan\u003eSPIKE SERIES \u003c\/span\u003e\u003cspan\u003e8-INCH SINGLE 4-\u003cb\u003eOHM\u003c\/b\u003e \u003c\/span\u003eHIGH-PERFORMANCE SUBWOOFER\u003c\/h3\u003e\n\u003cdiv class=\"et_pb_section et_pb_section_1 pro-audio et_pb_with_background et_section_regular\"\u003e\n\u003cdiv class=\"et_pb_row et_pb_row_4\"\u003e\n\u003cdiv class=\"et_pb_column et_pb_column_1_2 et_pb_column_7  et_pb_css_mix_blend_mode_passthrough\"\u003e\n\u003cdiv class=\"et_pb_module et_pb_text et_pb_text_3  et_pb_text_align_left et_pb_bg_layout_dark\"\u003e\n\u003cdiv class=\"et_pb_text_inner\"\u003e\n\u003ch3\u003eFEATURES\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eHigh Excursion Design for Ultra Low Bass\u003c\/li\u003e\n\u003cli\u003eFiber Matrix Paper Cone with Mica Coating\u003c\/li\u003e\n\u003cli\u003e3-Layer High Temp Voice Coil Former\u003c\/li\u003e\n\u003cli\u003eDual Damping System for Linear Bass Reproduction\u003c\/li\u003e\n\u003cli\u003eDual Dust Cap System for Enclosure Compression Control\u003c\/li\u003e\n\u003cli\u003eEfficient Heavy-Duty Motor Design\u003c\/li\u003e\n\u003cli\u003eRemovable Subwoofer Grille Included\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"et_pb_module et_pb_text et_pb_text_4  et_pb_text_align_left et_pb_bg_layout_dark\"\u003e\n\u003cdiv class=\"et_pb_text_inner\"\u003e\n\u003ch3\u003ePAIRINGS\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eOur Sonic Sommeliers Recommend the Following:\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eA single Spike Series 4 ohm subwoofer pairs ideally with the ACM-2.300 or ACX-300.2 for the conservative to moderate listener. For more imposing output, look no further than the LC-1.800.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003ePlanning to appreciate the esteemed output from our LC-5.1300 or D-5.1300 ampliﬁer? The stout power delivered from the output of channel 5 is a fantastic match. Bon appétit!\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eFor system designs utilizing two Spike Series 4 ohm subwoofers, we recommend the LC-1.800… Delectable!\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eSeeking an array of audio output? Planning to include three or more Space Series subwoofers in your system? Consult an expert at your favorite authorized AudioControl dealer, or visit audiocontrol.com for more system conﬁgurations that deliver divine volume \u0026amp; clarity.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"et_pb_column et_pb_column_1_2 et_pb_column_8  et_pb_css_mix_blend_mode_passthrough et-last-child\"\u003e\n\u003cdiv class=\"et_pb_module et_pb_image et_pb_image_0\"\u003e\u003cspan class=\"et_pb_image_wrap\"\u003e\u003cimg decoding=\"async\" width=\"615\" height=\"243\" src=\"https:\/\/www.audiocontrol.com\/wp-content\/uploads\/2023\/05\/2023-05-24_12-42-20.png\" alt=\"\" title=\"2023-05-24_12-42-20\" srcset=\"https:\/\/www.audiocontrol.com\/wp-content\/uploads\/2023\/05\/2023-05-24_12-42-20.png 615w, https:\/\/www.audiocontrol.com\/wp-content\/uploads\/2023\/05\/2023-05-24_12-42-20-480x190.png 480w\" sizes=\"(min-width: 0px) and (max-width: 480px) 480px, (min-width: 481px) 615px, 100vw\" class=\"wp-image-44967\"\u003e\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"et_pb_section et_pb_section_2 specifications-car et_pb_with_background et_section_regular\"\u003e\n\u003cdiv class=\"et_pb_row et_pb_row_5\"\u003e\n\u003cdiv class=\"et_pb_column et_pb_column_4_4 et_pb_column_9  et_pb_css_mix_blend_mode_passthrough et-last-child\"\u003e\n\u003cdiv class=\"et_pb_module et_pb_text et_pb_text_5  et_pb_text_align_left et_pb_bg_layout_light\"\u003e\n\u003cdiv class=\"et_pb_text_inner\"\u003e\n\u003ch1 id=\"specs\"\u003eSPECIFICATIONS\u003c\/h1\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"et_pb_row et_pb_row_6\"\u003e\n\u003cdiv class=\"et_pb_column et_pb_column_1_2 et_pb_column_10  et_pb_css_mix_blend_mode_passthrough\"\u003e\n\u003cdiv class=\"et_pb_module et_pb_text et_pb_text_6  et_pb_text_align_left et_pb_bg_layout_light\"\u003e\n\u003cdiv class=\"et_pb_text_inner\"\u003e\n\u003ch3\u003eTHIELE\/SMALL PARAMETERS\u003c\/h3\u003e\n\u003cp\u003eNominal Impedance (Z)                4 ohms\u003c\/p\u003e\n\u003cp\u003eDC Resistance (Re) ]]                     3.2 ohms\u003c\/p\u003e\n\u003cp\u003eResonance Frequency (Fs)           60.3665 Hz\u003c\/p\u003e\n\u003cp\u003ePiston Area (Sd)                              0.0194 m2\u003c\/p\u003e\n\u003cp\u003eForce Factor (BL)                           11.3310 T.m\u003c\/p\u003e\n\u003cp\u003eMechanical Q Factor (Qms)         5.4933\u003c\/p\u003e\n\u003cp\u003eElectrical Q Factor (Qes)              0.8733\u003c\/p\u003e\n\u003cp\u003eTotal Q Factor (Qts)                       0.7535\u003c\/p\u003e\n\u003cp\u003eSensitivity 1W\/M (SPL)                  81.9876\u003c\/p\u003e\n\u003cp\u003eMechanical Comp (Cms)               0.0752 mm\/N\u003c\/p\u003e\n\u003cp\u003eMoving Mass (Mms)                      92.3784 g\u003c\/p\u003e\n\u003cp\u003eLinear Excursion (Xmax) .            8.5 mm\u003c\/p\u003e\n\u003cp\u003eVolume Acoustic Comp (Vas)      3.9378 Ltr\/ 0.1390 Cu ft\u003c\/p\u003e\n\u003cp\u003eReference Efficiency (NO.)           0.0952%\u003c\/p\u003e\n\u003cp\u003eRMS Power (Pe)                             350 Watts\u003c\/p\u003e\n\u003cp\u003eFrequency Response                    30-500 Hz\u003c\/p\u003e\n\u003cp\u003eVoice Coil Diameter                      2.0 in\/50.8 mm\u003c\/p\u003e\n\u003cp\u003eDisplacement                                0.05 cu ft\/ 1.44Ltr\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan class=\"inline-title-car\"\u003eIN THE BOX:\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eSPK-8S4, Manual, Warranty\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"et_pb_column et_pb_column_1_2 et_pb_column_11  et_pb_css_mix_blend_mode_passthrough et-last-child\"\u003e\n\u003cdiv class=\"et_pb_module et_pb_text et_pb_text_7  et_pb_text_align_left et_pb_bg_layout_light\"\u003e\n\u003cdiv class=\"et_pb_text_inner\"\u003e\n\u003ch3\u003eDIMENSIONS\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eDimensions: 23.00″ W × 11.50″H × 12.00″D\u003c\/li\u003e\n\u003cli\u003eCut Out Diameter: 7.25 in\/ 184 mm\u003c\/li\u003e\n\u003cli\u003eMounting Depth: 4.291in\/ 109 mm\u003c\/li\u003e\n\u003cli\u003eMounting Height (w\/o Grille):  0.55in \/ 14mm\u003c\/li\u003e\n\u003cli\u003eMounting Height (w\/ Grille):  1.18in \/ 30mm\u003c\/li\u003e\n\u003cli\u003eMotor Diameter (w\/ Cover):  5.55in \/ 141mm\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"et_pb_module et_pb_text et_pb_text_8  et_pb_text_align_left et_pb_bg_layout_light\"\u003e\n\u003cdiv class=\"et_pb_text_inner\"\u003e\n\u003ch3\u003ePORTED ENCLOSURE\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eExternal Dimensions:  23.00″ W × 11.50″H × 12.00″D\u003c\/li\u003e\n\u003cli\u003eNet Internal Volume:  0.89 ft3\u003c\/li\u003e\n\u003cli\u003eTotal Internal Volume:  1.22 ft3\u003c\/li\u003e\n\u003cli\u003eGross External Volume:  1.84 ft3\u003c\/li\u003e\n\u003cli\u003eMaterial Thickness: 0.75″\u003c\/li\u003e\n\u003cli\u003eTuning Frequency: 40 Hz\u003c\/li\u003e\n\u003cli\u003ePort Area” 17.50 inch2\u003c\/li\u003e\n\u003cli\u003ePort Inlet:  1.75″W× 10.00″H\u003c\/li\u003e\n\u003cli\u003ePort Length:  28.00″\u003c\/li\u003e\n\u003cli\u003eF3 (Hz):  34\u003c\/li\u003e\n\u003cli\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"et_pb_module et_pb_text et_pb_text_9  et_pb_text_align_left et_pb_bg_layout_light\"\u003e\n\u003cdiv class=\"et_pb_text_inner\"\u003e\n\u003ch3\u003eSEALED ENCLOSURE\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eExternal Dimensions: 14.50″ W × 10.00″H × 10.00″D\u003c\/li\u003e\n\u003cli\u003eNet Internal Volume:  0.49 ft3\u003c\/li\u003e\n\u003cli\u003eTotal Internal Volume: 0.54 ft3\u003c\/li\u003e\n\u003cli\u003eGross External Volume: 0.84 ft3\u003c\/li\u003e\n\u003cli\u003eMaterial Thickness: 0.75″\u003c\/li\u003e\n\u003cli\u003eF3 (Hz): 69.04\u003c\/li\u003e\n\u003cli\u003eQtc:  0.86\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e*Enclosure size recommendations do not include driver and\/or port displacement\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","published_at":"2025-03-13T10:32:29-05:00","created_at":"2025-03-13T10:32:29-05:00","vendor":"AudioControl","type":"","tags":[],"price":19900,"price_min":19900,"price_max":19900,"available":true,"price_varies":false,"compare_at_price":null,"compare_at_price_min":0,"compare_at_price_max":0,"compare_at_price_varies":false,"variants":[{"id":44688711286980,"title":"Default Title","option1":"Default Title","option2":null,"option3":null,"sku":"","requires_shipping":true,"taxable":true,"featured_image":null,"available":true,"name":"AudioControl SPK-8S4","public_title":null,"options":["Default Title"],"price":19900,"weight":0,"compare_at_price":null,"inventory_management":null,"barcode":"","requires_selling_plan":false,"selling_plan_allocations":[]}],"images":["\/\/thestereoguru.com\/cdn\/shop\/files\/spk-8s-upright-grille_2.jpg?v=1741879932","\/\/thestereoguru.com\/cdn\/shop\/files\/spk-8s-front-grille_1.jpg?v=1741879932","\/\/thestereoguru.com\/cdn\/shop\/files\/spk-8s-right-grille_1.jpg?v=1741879932","\/\/thestereoguru.com\/cdn\/shop\/files\/spk-8s4-rear-right.jpg?v=1741879932","\/\/thestereoguru.com\/cdn\/shop\/files\/spk-8s-upright_1.jpg?v=1741879932","\/\/thestereoguru.com\/cdn\/shop\/files\/spk-8s-front_1.jpg?v=1741879932","\/\/thestereoguru.com\/cdn\/shop\/files\/spk-8s-right_1.jpg?v=1741879932"],"featured_image":"\/\/thestereoguru.com\/cdn\/shop\/files\/spk-8s-upright-grille_2.jpg?v=1741879932","options":["Title"],"media":[{"alt":null,"id":34378200023236,"position":1,"preview_image":{"aspect_ratio":2.286,"height":1120,"width":2560,"src":"\/\/thestereoguru.com\/cdn\/shop\/files\/spk-8s-upright-grille_2.jpg?v=1741879932"},"aspect_ratio":2.286,"height":1120,"media_type":"image","src":"\/\/thestereoguru.com\/cdn\/shop\/files\/spk-8s-upright-grille_2.jpg?v=1741879932","width":2560},{"alt":null,"id":34378200056004,"position":2,"preview_image":{"aspect_ratio":2.286,"height":1120,"width":2560,"src":"\/\/thestereoguru.com\/cdn\/shop\/files\/spk-8s-front-grille_1.jpg?v=1741879932"},"aspect_ratio":2.286,"height":1120,"media_type":"image","src":"\/\/thestereoguru.com\/cdn\/shop\/files\/spk-8s-front-grille_1.jpg?v=1741879932","width":2560},{"alt":null,"id":34378200088772,"position":3,"preview_image":{"aspect_ratio":2.286,"height":1120,"width":2560,"src":"\/\/thestereoguru.com\/cdn\/shop\/files\/spk-8s-right-grille_1.jpg?v=1741879932"},"aspect_ratio":2.286,"height":1120,"media_type":"image","src":"\/\/thestereoguru.com\/cdn\/shop\/files\/spk-8s-right-grille_1.jpg?v=1741879932","width":2560},{"alt":null,"id":34378200121540,"position":4,"preview_image":{"aspect_ratio":2.286,"height":1120,"width":2560,"src":"\/\/thestereoguru.com\/cdn\/shop\/files\/spk-8s4-rear-right.jpg?v=1741879932"},"aspect_ratio":2.286,"height":1120,"media_type":"image","src":"\/\/thestereoguru.com\/cdn\/shop\/files\/spk-8s4-rear-right.jpg?v=1741879932","width":2560},{"alt":null,"id":34378200154308,"position":5,"preview_image":{"aspect_ratio":2.286,"height":1120,"width":2560,"src":"\/\/thestereoguru.com\/cdn\/shop\/files\/spk-8s-upright_1.jpg?v=1741879932"},"aspect_ratio":2.286,"height":1120,"media_type":"image","src":"\/\/thestereoguru.com\/cdn\/shop\/files\/spk-8s-upright_1.jpg?v=1741879932","width":2560},{"alt":null,"id":34378200187076,"position":6,"preview_image":{"aspect_ratio":2.286,"height":1120,"width":2560,"src":"\/\/thestereoguru.com\/cdn\/shop\/files\/spk-8s-front_1.jpg?v=1741879932"},"aspect_ratio":2.286,"height":1120,"media_type":"image","src":"\/\/thestereoguru.com\/cdn\/shop\/files\/spk-8s-front_1.jpg?v=1741879932","width":2560},{"alt":null,"id":34378200219844,"position":7,"preview_image":{"aspect_ratio":2.286,"height":1120,"width":2560,"src":"\/\/thestereoguru.com\/cdn\/shop\/files\/spk-8s-right_1.jpg?v=1741879932"},"aspect_ratio":2.286,"height":1120,"media_type":"image","src":"\/\/thestereoguru.com\/cdn\/shop\/files\/spk-8s-right_1.jpg?v=1741879932","width":2560}],"requires_selling_plan":false,"selling_plan_groups":[],"content":"\u003ch3\u003e\n\u003cspan\u003eSPIKE SERIES \u003c\/span\u003e\u003cspan\u003e8-INCH SINGLE 4-\u003cb\u003eOHM\u003c\/b\u003e \u003c\/span\u003eHIGH-PERFORMANCE SUBWOOFER\u003c\/h3\u003e\n\u003cdiv class=\"et_pb_section et_pb_section_1 pro-audio et_pb_with_background et_section_regular\"\u003e\n\u003cdiv class=\"et_pb_row et_pb_row_4\"\u003e\n\u003cdiv class=\"et_pb_column et_pb_column_1_2 et_pb_column_7  et_pb_css_mix_blend_mode_passthrough\"\u003e\n\u003cdiv class=\"et_pb_module et_pb_text et_pb_text_3  et_pb_text_align_left et_pb_bg_layout_dark\"\u003e\n\u003cdiv class=\"et_pb_text_inner\"\u003e\n\u003ch3\u003eFEATURES\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eHigh Excursion Design for Ultra Low Bass\u003c\/li\u003e\n\u003cli\u003eFiber Matrix Paper Cone with Mica Coating\u003c\/li\u003e\n\u003cli\u003e3-Layer High Temp Voice Coil Former\u003c\/li\u003e\n\u003cli\u003eDual Damping System for Linear Bass Reproduction\u003c\/li\u003e\n\u003cli\u003eDual Dust Cap System for Enclosure Compression Control\u003c\/li\u003e\n\u003cli\u003eEfficient Heavy-Duty Motor Design\u003c\/li\u003e\n\u003cli\u003eRemovable Subwoofer Grille Included\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"et_pb_module et_pb_text et_pb_text_4  et_pb_text_align_left et_pb_bg_layout_dark\"\u003e\n\u003cdiv class=\"et_pb_text_inner\"\u003e\n\u003ch3\u003ePAIRINGS\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eOur Sonic Sommeliers Recommend the Following:\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eA single Spike Series 4 ohm subwoofer pairs ideally with the ACM-2.300 or ACX-300.2 for the conservative to moderate listener. For more imposing output, look no further than the LC-1.800.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003ePlanning to appreciate the esteemed output from our LC-5.1300 or D-5.1300 ampliﬁer? The stout power delivered from the output of channel 5 is a fantastic match. Bon appétit!\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eFor system designs utilizing two Spike Series 4 ohm subwoofers, we recommend the LC-1.800… Delectable!\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eSeeking an array of audio output? Planning to include three or more Space Series subwoofers in your system? Consult an expert at your favorite authorized AudioControl dealer, or visit audiocontrol.com for more system conﬁgurations that deliver divine volume \u0026amp; clarity.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"et_pb_column et_pb_column_1_2 et_pb_column_8  et_pb_css_mix_blend_mode_passthrough et-last-child\"\u003e\n\u003cdiv class=\"et_pb_module et_pb_image et_pb_image_0\"\u003e\u003cspan class=\"et_pb_image_wrap\"\u003e\u003cimg decoding=\"async\" width=\"615\" height=\"243\" src=\"https:\/\/www.audiocontrol.com\/wp-content\/uploads\/2023\/05\/2023-05-24_12-42-20.png\" alt=\"\" title=\"2023-05-24_12-42-20\" srcset=\"https:\/\/www.audiocontrol.com\/wp-content\/uploads\/2023\/05\/2023-05-24_12-42-20.png 615w, https:\/\/www.audiocontrol.com\/wp-content\/uploads\/2023\/05\/2023-05-24_12-42-20-480x190.png 480w\" sizes=\"(min-width: 0px) and (max-width: 480px) 480px, (min-width: 481px) 615px, 100vw\" class=\"wp-image-44967\"\u003e\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"et_pb_section et_pb_section_2 specifications-car et_pb_with_background et_section_regular\"\u003e\n\u003cdiv class=\"et_pb_row et_pb_row_5\"\u003e\n\u003cdiv class=\"et_pb_column et_pb_column_4_4 et_pb_column_9  et_pb_css_mix_blend_mode_passthrough et-last-child\"\u003e\n\u003cdiv class=\"et_pb_module et_pb_text et_pb_text_5  et_pb_text_align_left et_pb_bg_layout_light\"\u003e\n\u003cdiv class=\"et_pb_text_inner\"\u003e\n\u003ch1 id=\"specs\"\u003eSPECIFICATIONS\u003c\/h1\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"et_pb_row et_pb_row_6\"\u003e\n\u003cdiv class=\"et_pb_column et_pb_column_1_2 et_pb_column_10  et_pb_css_mix_blend_mode_passthrough\"\u003e\n\u003cdiv class=\"et_pb_module et_pb_text et_pb_text_6  et_pb_text_align_left et_pb_bg_layout_light\"\u003e\n\u003cdiv class=\"et_pb_text_inner\"\u003e\n\u003ch3\u003eTHIELE\/SMALL PARAMETERS\u003c\/h3\u003e\n\u003cp\u003eNominal Impedance (Z)                4 ohms\u003c\/p\u003e\n\u003cp\u003eDC Resistance (Re) ]]                     3.2 ohms\u003c\/p\u003e\n\u003cp\u003eResonance Frequency (Fs)           60.3665 Hz\u003c\/p\u003e\n\u003cp\u003ePiston Area (Sd)                              0.0194 m2\u003c\/p\u003e\n\u003cp\u003eForce Factor (BL)                           11.3310 T.m\u003c\/p\u003e\n\u003cp\u003eMechanical Q Factor (Qms)         5.4933\u003c\/p\u003e\n\u003cp\u003eElectrical Q Factor (Qes)              0.8733\u003c\/p\u003e\n\u003cp\u003eTotal Q Factor (Qts)                       0.7535\u003c\/p\u003e\n\u003cp\u003eSensitivity 1W\/M (SPL)                  81.9876\u003c\/p\u003e\n\u003cp\u003eMechanical Comp (Cms)               0.0752 mm\/N\u003c\/p\u003e\n\u003cp\u003eMoving Mass (Mms)                      92.3784 g\u003c\/p\u003e\n\u003cp\u003eLinear Excursion (Xmax) .            8.5 mm\u003c\/p\u003e\n\u003cp\u003eVolume Acoustic Comp (Vas)      3.9378 Ltr\/ 0.1390 Cu ft\u003c\/p\u003e\n\u003cp\u003eReference Efficiency (NO.)           0.0952%\u003c\/p\u003e\n\u003cp\u003eRMS Power (Pe)                             350 Watts\u003c\/p\u003e\n\u003cp\u003eFrequency Response                    30-500 Hz\u003c\/p\u003e\n\u003cp\u003eVoice Coil Diameter                      2.0 in\/50.8 mm\u003c\/p\u003e\n\u003cp\u003eDisplacement                                0.05 cu ft\/ 1.44Ltr\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan class=\"inline-title-car\"\u003eIN THE BOX:\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eSPK-8S4, Manual, Warranty\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"et_pb_column et_pb_column_1_2 et_pb_column_11  et_pb_css_mix_blend_mode_passthrough et-last-child\"\u003e\n\u003cdiv class=\"et_pb_module et_pb_text et_pb_text_7  et_pb_text_align_left et_pb_bg_layout_light\"\u003e\n\u003cdiv class=\"et_pb_text_inner\"\u003e\n\u003ch3\u003eDIMENSIONS\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eDimensions: 23.00″ W × 11.50″H × 12.00″D\u003c\/li\u003e\n\u003cli\u003eCut Out Diameter: 7.25 in\/ 184 mm\u003c\/li\u003e\n\u003cli\u003eMounting Depth: 4.291in\/ 109 mm\u003c\/li\u003e\n\u003cli\u003eMounting Height (w\/o Grille):  0.55in \/ 14mm\u003c\/li\u003e\n\u003cli\u003eMounting Height (w\/ Grille):  1.18in \/ 30mm\u003c\/li\u003e\n\u003cli\u003eMotor Diameter (w\/ Cover):  5.55in \/ 141mm\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"et_pb_module et_pb_text et_pb_text_8  et_pb_text_align_left et_pb_bg_layout_light\"\u003e\n\u003cdiv class=\"et_pb_text_inner\"\u003e\n\u003ch3\u003ePORTED ENCLOSURE\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eExternal Dimensions:  23.00″ W × 11.50″H × 12.00″D\u003c\/li\u003e\n\u003cli\u003eNet Internal Volume:  0.89 ft3\u003c\/li\u003e\n\u003cli\u003eTotal Internal Volume:  1.22 ft3\u003c\/li\u003e\n\u003cli\u003eGross External Volume:  1.84 ft3\u003c\/li\u003e\n\u003cli\u003eMaterial Thickness: 0.75″\u003c\/li\u003e\n\u003cli\u003eTuning Frequency: 40 Hz\u003c\/li\u003e\n\u003cli\u003ePort Area” 17.50 inch2\u003c\/li\u003e\n\u003cli\u003ePort Inlet:  1.75″W× 10.00″H\u003c\/li\u003e\n\u003cli\u003ePort Length:  28.00″\u003c\/li\u003e\n\u003cli\u003eF3 (Hz):  34\u003c\/li\u003e\n\u003cli\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"et_pb_module et_pb_text et_pb_text_9  et_pb_text_align_left et_pb_bg_layout_light\"\u003e\n\u003cdiv class=\"et_pb_text_inner\"\u003e\n\u003ch3\u003eSEALED ENCLOSURE\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eExternal Dimensions: 14.50″ W × 10.00″H × 10.00″D\u003c\/li\u003e\n\u003cli\u003eNet Internal Volume:  0.49 ft3\u003c\/li\u003e\n\u003cli\u003eTotal Internal Volume: 0.54 ft3\u003c\/li\u003e\n\u003cli\u003eGross External Volume: 0.84 ft3\u003c\/li\u003e\n\u003cli\u003eMaterial Thickness: 0.75″\u003c\/li\u003e\n\u003cli\u003eF3 (Hz): 69.04\u003c\/li\u003e\n\u003cli\u003eQtc:  0.86\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e*Enclosure size recommendations do not include driver and\/or port displacement\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e"}

Product Description

SPIKE SERIES 8-INCH SINGLE 4-OHM HIGH-PERFORMANCE SUBWOOFER

FEATURES

High Excursion Design for Ultra Low Bass
Fiber Matrix Paper Cone with Mica Coating
3-Layer High Temp Voice Coil Former
Dual Damping System for Linear Bass Reproduction
Dual Dust Cap System for Enclosure Compression Control
Efficient Heavy-Duty Motor Design
Removable Subwoofer Grille Included

PAIRINGS

Our Sonic Sommeliers Recommend the Following:

A single Spike Series 4 ohm subwoofer pairs ideally with the ACM-2.300 or ACX-300.2 for the conservative to moderate listener. For more imposing output, look no further than the LC-1.800.

Planning to appreciate the esteemed output from our LC-5.1300 or D-5.1300 ampliﬁer? The stout power delivered from the output of channel 5 is a fantastic match. Bon appétit!

For system designs utilizing two Spike Series 4 ohm subwoofers, we recommend the LC-1.800… Delectable!

Seeking an array of audio output? Planning to include three or more Space Series subwoofers in your system? Consult an expert at your favorite authorized AudioControl dealer, or visit audiocontrol.com for more system conﬁgurations that deliver divine volume & clarity.

SPECIFICATIONS

THIELE/SMALL PARAMETERS

Nominal Impedance (Z) 4 ohms

DC Resistance (Re) ]] 3.2 ohms

Resonance Frequency (Fs) 60.3665 Hz

Piston Area (Sd) 0.0194 m2

Force Factor (BL) 11.3310 T.m

Mechanical Q Factor (Qms) 5.4933

Electrical Q Factor (Qes) 0.8733

Total Q Factor (Qts) 0.7535

Sensitivity 1W/M (SPL) 81.9876

Mechanical Comp (Cms) 0.0752 mm/N

Moving Mass (Mms) 92.3784 g

Linear Excursion (Xmax) . 8.5 mm

Volume Acoustic Comp (Vas) 3.9378 Ltr/ 0.1390 Cu ft

Reference Efficiency (NO.) 0.0952%

RMS Power (Pe) 350 Watts

Frequency Response 30-500 Hz

Voice Coil Diameter 2.0 in/50.8 mm

Displacement 0.05 cu ft/ 1.44Ltr

IN THE BOX:

SPK-8S4, Manual, Warranty

DIMENSIONS

Dimensions: 23.00″ W × 11.50″H × 12.00″D
Cut Out Diameter: 7.25 in/ 184 mm
Mounting Depth: 4.291in/ 109 mm
Mounting Height (w/o Grille): 0.55in / 14mm
Mounting Height (w/ Grille): 1.18in / 30mm
Motor Diameter (w/ Cover): 5.55in / 141mm

PORTED ENCLOSURE

External Dimensions: 23.00″ W × 11.50″H × 12.00″D
Net Internal Volume: 0.89 ft3
Total Internal Volume: 1.22 ft3
Gross External Volume: 1.84 ft3
Material Thickness: 0.75″
Tuning Frequency: 40 Hz
Port Area” 17.50 inch2
Port Inlet: 1.75″W× 10.00″H
Port Length: 28.00″
F3 (Hz): 34

SEALED ENCLOSURE

External Dimensions: 14.50″ W × 10.00″H × 10.00″D
Net Internal Volume: 0.49 ft3
Total Internal Volume: 0.54 ft3
Gross External Volume: 0.84 ft3
Material Thickness: 0.75″
F3 (Hz): 69.04
Qtc: 0.86

*Enclosure size recommendations do not include driver and/or port displacement

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