ace_ventura Posted November 16, 2014 Report Share Posted November 16, 2014 i just bought 2 ground zero gzhw 30x subwoofers with a ground zero gzha 2350xii amp and a phoenix gold sd800.4 for the speakers. the subwoofers are Diameter: 30 cm / 12" Power handling: 800 WRMS Impedance: 2 x 2 Ohm Voice coil: 63 mm / 2.5" aluminum Excursion: X max. 22 mm / 0.9" Resonance Frequency: FS 23,5 Hz SPL 2.83 V/m: 86 dB the specs of the amp are Output Power @ 4 Ohm 2 x 260 W RMS Output Power @ 2 Ohm 2 x 470 W RMS Output Power @ 1 Ohm 2 x 740 W RMS Bridge mode @ 4 Ohm 1 x 1140 W RMS Bridge mode @ 2 Ohm 1 x 1800 W RMS is there someone who could design me a nice box for this setup? 2010 ford focus turnier facelift The dimensions are 45cm high. 110cm with and 80cm depth thanks Link to comment Share on other sites More sharing options...
ace_ventura Posted November 17, 2014 Author Report Share Posted November 17, 2014 no one that can help me with a box? Link to comment Share on other sites More sharing options...
Joe X Posted November 17, 2014 Report Share Posted November 17, 2014 So here is couple of suggestions: Power: to subs rated, amp subsonic filter to 28Hz, minimum port clearance 11.5 cm, figure is just an assembly guide: Power: to subs rated, amp subsonic filter to 28Hz, minimum port clearance 11 cm, figure is just an assembly guide: Link to comment Share on other sites More sharing options...
ace_ventura Posted November 18, 2014 Author Report Share Posted November 18, 2014 thx Joe i really like the second one are the reinforcement pole's nessecary? if so what can i use for it? does the l port needs to be angled? sorry if this are stupid questions but this will be the first time i make a slotted box Link to comment Share on other sites More sharing options...
Joe X Posted November 18, 2014 Report Share Posted November 18, 2014 Use 1 1/4" (whatever you can find around that in metric units) wooden dowel rods, 45s are not necessary but round any sharp inner edges at the turn and at both ends. Link to comment Share on other sites More sharing options...
ace_ventura Posted November 19, 2014 Author Report Share Posted November 19, 2014 thx for the info hopefully i can start this weekend with the box Link to comment Share on other sites More sharing options...
Joe X Posted November 19, 2014 Report Share Posted November 19, 2014 Make sure you can get 18mm thick wood, if it's not available then I would need to fix the cutsheet a bit to adapt for a different thickness, I wouldn't recommend any less than 18mm so if not available then better get thicker wood. Link to comment Share on other sites More sharing options...
ace_ventura Posted November 20, 2014 Author Report Share Posted November 20, 2014 18mm mdf is not a problem to get. i have plenty of shops nearby that sels wood by the way; whats the best way to put the box together step by step ? Link to comment Share on other sites More sharing options...
ace_ventura Posted February 12, 2015 Author Report Share Posted February 12, 2015 A friend is wondering if hè could use the same box for two ground zero gzrw 12d4 SUbs On a ground zero gzta 1.1200dx GZRW 12D4 (Code: 125016) > Owner's Manual > Data sheet Features - Reinforced paper cone - 75 mm / 3" Copper voice coil - High-Roll sandwich surround - Push terminals Technical data *Describes the subwoofer's ability for each kind of use. ☺ = Good ability ☺☺☺☺☺☺ = Excellent ability ModelGZRW 12D4 Diameter300 mm / 12" Mounting diameter283 mm / 11.14" Mounting depth158 mm / 6.22" Voice coil75 mm Kupfer / 3" Copper ConeVerstärkte Papiermembrane / Reinforced paper cone Power Handling800 WRMS Impedance2 x 4 Ohm SPL87 dB Xmax45 mm / 1.77" Fs30.2 Hz Qts0.48 Vas47,6 / 1.68 Sound Quality*☺☺ SPL Competition*☺☺☺ Low bass performance 20 - 50 Hz*☺☺☺☺ Mid bass performance 50 - 80 Hz*☺☺ Box recommendation vented50 Liter / 1.77 cu.ft. net - Rohr/Tube 2 x 8 cm / 3.15" - L = 25 cm / 10" Box recommendation sealed15 - 25 Liter / 0.53 - 0.88 cu.ft. net Hama No.125016 Link to comment Share on other sites More sharing options...
Joe X Posted February 12, 2015 Report Share Posted February 12, 2015 He could but if those are recommended for a little larger airspace I would give it if he has the space. Link to comment Share on other sites More sharing options...
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