View Full Version : Help! HT Sub Box Build & amp!

02-18-2009, 05:01 PM
What box design should i use for these 12s?

I have 2 12'' RFR 1812 that are used.

http://www.fortunecity.com/skyscrape...f/rfr1812.html <-- i assume these specs are correct.

Model RFR-1812
Description 12" Punch Power Woofer
Nominal Impedance 8 ohms
(DC Resistance) 7.08 ohms
Power Handling
(RMS/Peak) 600/1200 W
Sensitivity 88.0 dB
Fs 27 Hz
QMS 3.24
QES 0.51
QTS 0.44
(Cone Area) 83.71 in2
Vas 3.5 ft3
Xmax 0.4 in
Voice Coil Diameter 4 in
Mounting Depth 5-19/32 in
(14.21 cm)

This is going to be a HT box.

I was thinking 7 cubes tuned to around 15hz? does that sound about right? or should it be around 20-25? also how large should the port be? any advantage to 1'' MDF? less box flexing? Should i make supports in the box as i'v seen other do to stop flexing?

Also i would need an amp to push them. does anyone have any suggestions? it looks like i need around 1200rms @ 4...

I'm hoping these will be extremely loud...thoughts?

oh and to finish the box i figured some textured dark grey spray paint and some rubber feet. i'd like to make the box into the coffee table but if i mount glass above it will it shake like crazy?

02-18-2009, 05:43 PM
Would this be better in the enclosure design section of the forum? if so could a mod move?

02-19-2009, 07:19 PM
bizump 38 views and none has any input???

i think i found an amp for it tho. $320 shipped and it should do 1400 @4 x1 which is good because until today everything i found was over a grand for that output.

i'm going to make a hinged faceplate for the front where the subs will be. easiest way i can think of doing it and slightly protecting them...thoughts?