ace_ventura Posted November 16, 2014 Report 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
ace_ventura Posted November 17, 2014 Author Report Posted November 17, 2014 no one that can help me with a box?
Joe X Posted November 17, 2014 Report 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:
ace_ventura Posted November 18, 2014 Author Report 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
Joe X Posted November 18, 2014 Report 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.
ace_ventura Posted November 19, 2014 Author Report Posted November 19, 2014 thx for the info hopefully i can start this weekend with the box
Joe X Posted November 19, 2014 Report 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.
ace_ventura Posted November 20, 2014 Author Report 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 ?
ace_ventura Posted February 12, 2015 Author Report 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
Joe X Posted February 12, 2015 Report 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.
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