gally Posted July 30, 2012 Report Share Posted July 30, 2012 So, today i pourchaused a Ground Zero Hydrogen 38X, or its a 15˝ dual 2ohm subwoofer with a FS of 19.3hz...so this project is for the lows...mostly my space dimension 55cm/21.7inch length or depth- 114cm/44,8inch width-- 53cm/20,9inch height--- GZ sub specs in this photo http://imageshack.us/photo/my-images/444/20120730213239.jpg/ im sorrsy but im trying to type from my em...sort of a tablet computer and is a little difficult and the frequency i would like to be from 29-32hz... Quote 2010 Chevrolet Cruze Radio --- pioneer mvh-200vbt Front/back --- alpine type s 6.5" Sub Control --- Pac LC1 Sub Amp --- GZPA 1.4K Sub --- GZNW 15XSPL D1 Battery - GZBP 12.2500X Link to comment Share on other sites More sharing options...
DBL Audio CZ Posted July 30, 2012 Report Share Posted July 30, 2012 So, today i pourchaused a Ground Zero Hydrogen 38X, or its a 15˝ dual 2ohm subwoofer with a FS of 19.3hz...so this project is for the lows...mostly my space dimension 55cm/21.7inch length or depth- 114cm/44,8inch width-- 53cm/20,9inch height--- GZ sub specs in this photo http://imageshack.us...0730213239.jpg/ im sorrsy but im trying to type from my em...sort of a tablet computer and is a little difficult and the frequency i would like to be from 29-32hz... 160L ported 85 cm x 2.5 cm x 38 cm box tuned to 29hz Quote Link to comment Share on other sites More sharing options...
Joe X Posted July 31, 2012 Report Share Posted July 31, 2012 Here is a suggestion: Enclosure Specifications: Fb = 32 Hz Vb = 3.38 ft^3 External Height = 13 in External Width = 44 in External Depth = 19.75 in Port Width = 5 1/4 in Cut Sheet List: * All Dimensions in Inches. * Wood Thickness is 3/4 for all Parts. External Enclosure Parts: 2 x Top & Bottom (3 parts) = 44 x 19 3/4 Left & Right Sides = Side 1 = 18 1/4 x 10 3/4 Side 2 = 19 x 10 3/4 Front = 38 x 10 3/4 Back = 44 x 10 3/4 L Port Internal Assembly Parts: Front to Back = 13 x 10 3/4 Extension = 15 1/4 x 10 3/4 Assembly guide: Quote Link to comment Share on other sites More sharing options...
john253a Posted July 31, 2012 Report Share Posted July 31, 2012 after lookn over the specs idd recomend 3.3-3.5net @29-30hz what car? how much power? Quote Link to comment Share on other sites More sharing options...
gally Posted July 31, 2012 Author Report Share Posted July 31, 2012 after lookn over the specs idd recomend 3.3-3.5net @29-30hz what car? how much power? all stated in my sig...either way my car is a Opel/Vauxhall Corsa C the amplifier is a DD m1b...aorund 1600wrms at 13,8V Quote 2010 Chevrolet Cruze Radio --- pioneer mvh-200vbt Front/back --- alpine type s 6.5" Sub Control --- Pac LC1 Sub Amp --- GZPA 1.4K Sub --- GZNW 15XSPL D1 Battery - GZBP 12.2500X Link to comment Share on other sites More sharing options...
Joe X Posted July 31, 2012 Report Share Posted July 31, 2012 Here are the manufacturer specs: http://www.ground-zero-audio.com/en/products/subwooferchassis/gzhw-38x.html They recommend 80 liters net on 1K. Quote Link to comment Share on other sites More sharing options...
gally Posted July 31, 2012 Author Report Share Posted July 31, 2012 (edited) Here are the manufacturer specs: http://www.ground-ze...s/gzhw-38x.html They recommend 80 liters net on 1K. can you get me a box that is tuned a little lower? like 28hz? Edited July 31, 2012 by gally Quote 2010 Chevrolet Cruze Radio --- pioneer mvh-200vbt Front/back --- alpine type s 6.5" Sub Control --- Pac LC1 Sub Amp --- GZPA 1.4K Sub --- GZNW 15XSPL D1 Battery - GZBP 12.2500X Link to comment Share on other sites More sharing options...
DBL Audio CZ Posted August 1, 2012 Report Share Posted August 1, 2012 (edited) Sorry, forgot to convert the values here . The manufacturer is tuned above 40Hz and inappropriate for you Your small car and thus the max SPL to dodge whopping gross: 5,728 cu.ft Port: 2x diameter 3,93700787401575in x length 11,8110236220472in Box tuned 29hz, or slot port : length : 13,7795275590551in x height 1,5748031496063in x depth 13,7795275590551in box tuning 27,2hz box tested Citroen Saxo and Toyota Yaris! simulation and measurement corresponds good luck gally Edited August 1, 2012 by DBL Audio CZ Quote Link to comment Share on other sites More sharing options...
gally Posted August 7, 2012 Author Report Share Posted August 7, 2012 Sorry, forgot to convert the values here . The manufacturer is tuned above 40Hz and inappropriate for you Your small car and thus the max SPL to dodge whopping gross: 5,728 cu.ft Port: 2x diameter 3,93700787401575in x length 11,8110236220472in Box tuned 29hz, or slot port : length : 13,7795275590551in x height 1,5748031496063in x depth 13,7795275590551in box tuning 27,2hz box tested Citroen Saxo and Toyota Yaris! simulation and measurement corresponds good luck gally umm....what? i dont do this build for SPL....its more like sql it for my own musical taste... Quote 2010 Chevrolet Cruze Radio --- pioneer mvh-200vbt Front/back --- alpine type s 6.5" Sub Control --- Pac LC1 Sub Amp --- GZPA 1.4K Sub --- GZNW 15XSPL D1 Battery - GZBP 12.2500X Link to comment Share on other sites More sharing options...
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