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  1. Cheers for that. Just to clarify, each sub is in its own seperate 4ft box.....so i need a 6" port for each box?
  2. All being well they should be getting around 1000-1200watts. They will be ran with a pair of linn isobariks with active crossover set 90hz
  3. hi guys, im just in the process of building some boxes for my old school Rockford PWR-415 subs to run in my house. The manual recommends 5" port 7" long for a 4 cubic foot box. i have exactly 4 feet internal volume after sub displacement (forgot to factor in the port) but i cant find any 5" diameter PVC, biggest i can find is 4". Any advice as whether 4" would work? and how do you work out the length if diameter is changed?
  4. can any of you recommend a good battery size for the M4b? im not sure how to work out the specs on batteries
  5. also what size battery would you recommend for the rear
  6. cheers for that, ill run 250 amp fuses just to be safe. how would you recommend i ground the amps? a common disto block or both amps straight to the body by shortest length? also a another dumb question.... i would not need to join the the 2 battery negatives together would i?
  7. hi guys, yes its been a long time and my project went nowhere until now. finally getting back on it. so im going to be running a second battery out the back as advised. 2 0 gauge cables fused coming out of the front amp then fused going into the rear amp then 2 0 gauge going inside the cab to a fused disto block then into the DD amps...... does that sound right? also what size fuses will i need for the 2 0 gauge cables? running M4b and S4b
  8. Cheers man youve been a big help. Whats your thoughts on those XS super capacitors? Alot of weight savings
  9. Sorry for all the noob questions..... so with these dual battery setups does it require a switching relay like a camping setup to switch charge betwwen the batteries? Or do they just get hard wired all together with fuses inline
  10. Or maybe shoukd i get a smaller amp? Im going to be running 3 DC Audio level 3 10's in a 3 cubic foot ported box
  11. Wow dont i feel a little out of my depth here haha. I thought once the motor is running a high amp alternator would provide the juice, i always thought running extra batteries was for competition when running the system without the motor on? Any of you helpful guys be able to draw up a quick diagram of how you think the setup should be?
  12. Would a large capacitor at the back with the amp be good enough? Or definitely a second battery?
  13. So fuses near the amp and battery or just near the amp? I was planning on running the biggest XS or Optima battery with a 300amp alternator, will that be enough? Just to be clear im not competing just doing a loud daily driver
  14. So im about to install the biggest amps ive ever owned- dd m4 and a s4b. The m4 requires 2 0 gauge power cables a the s4b 1 4 gauge. I was planning on using a SMD anl fuse block at the battery and run the 2 0 gauge cables to a non fused distribution block at the amps and also run the 4 gauge to one of the terminals for the s4b, bad/good idea?
  15. So my system has gone through a few adjustments. Im now going to run 3 DC Audio L3 10's, just had Mark at CAF design the box. Ive had a look through all my old stereo gear and looking for opinions on whats the best mids to use..... my options as of right (what i currently have) i can run 2 pairs of mb quart qm160's or 2 pairs of the old school orion hcca 6's or a 1 pair of the cdt qes-680 ??? Which do you guys think will perform the best?
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