Silvrdo Extended Cab, subs for box?

Discussion in 'Car Subwoofers' started by mistermike559, Sep 16, 2008.

  1. mistermike559

    mistermike559 Full Member

    It's been awhile since I've had to build a car audio system. Ha, last system consisted of JL's- 10W012's (so that kinda tells you how long its been). An now, I'm looking to start planning my build for my 00' ECSB pickup. Don't know whats good, new or decent now.

    Had to edit this part since it didn't make sense to me after reading it. Options I have would be fabb'd boxes. So, for now- first would be solely for 10's. With 6.5" mounting depth, an .70 of airspace per sub. Second option is capable of being made for both 10's an 12's. This one has a mounting depth of 7.0", an .92 of airspace for each sub.

    Looking to put about 250-300 RMS watts to each sub. Any suggestion on which size or brand/series to go with with my airspace?
     
    Last edited: Sep 17, 2008
  2. Booosh

    Booosh Full Member

    I would look into http://soundsplinter.com the rli-10's. You are looking at 6.1" mounting depth and .65 cu ft in a sealed box. Then you have the rlp-12's with a mounting depth of 6.8" but your gonna cut it close only because you are going to need min .95 cu ft sealed. As for rms the 10's are perfert for what you want they take 250-500 whereas the 12's are 500-1000.
     
  3. mistermike559

    mistermike559 Full Member

    I think those "Soundsplinter" subs are sweet! But since my system is going to be a med-level($) setup, I think they're abit pricy for me. Most I'd probably spend on a sub would be about $150. give or take. As for the "Probox"- I had checked them out, an liked their un-loaded enclosure. But for a complete sub & box setup, I don't know anything about their subs?

    I'm still looking, I did find "Polk Audio's" sub(MM1240) looks right for the price. Specs:
    * Subwoofer Size 12"
    * RMS Power Handling 425 watts
    * Sealed Box Volume 0.88 cubic feet
    * Sensitivity 92 dB
    * Frequency Response 22 - 200 Hz
    * Top Mount Depth 4-5/8"

    I'm abit off on RMS watts, but aslong as I'm putting atleast a minimum of 70-90% to them, I should be good. Has anyone had any luck with these or any others?
     
  4. Booosh

    Booosh Full Member

    Are you looking for spl or sq? How many subs do you plan on getting? The only thing I see is that if you are only running one sub you might want to look for a 2 ohm instead of the 4 ohm like the MM1240 because you will get more out of your amp rms wise with a lower ohm.

    Example:

    This is what my amp the SAZ-1500D tested

    4 ohm nominal = 518 watts @ 88% efficiency (voltage fell from 14.3v, to 14.0v)
    2 ohm nominal = 948 watts @ 85% efficiency (voltage fell from 14.3v, to 13.6v)
    1 ohm nominal = 1510 watts @ 78% efficiency (voltage fell from 14.3v, to 12.4 volts
    .5 ohm nominal = 1615 watts @ 72% efficiency (voltage fell from 14.3v, to 11.8v)
    .35 ohm nominal = 1748 watts @ 67% efficiency (voltage fell from 14.3v, to 11.4v)
     
  5. mistermike559

    mistermike559 Full Member

    I wish I could say I was setting up the system for spl. But being limited on space, I'm leaning to try to get a little of both worlds(if that makes sense?) The box that I'm thinking about would house two subs, so going with a lower ohm setup like you said, would be the best bet.
     
  6. pedro quiroga

    pedro quiroga Well-Known Member

    Last edited: Sep 18, 2008
  7. mistermike559

    mistermike559 Full Member

    That's a nice setup up. Which "ED" series of 8" subs are those? Never thought about four 8" subs. I'm not big on the forward facing, but having four subs down facing would be nice.

    What do you guys thing? Think about it. If you had only Two 10" or 12" subs facing down with about 600 watts RMS (vs) four 8" subs with the same amount of wattage, facing down too? Say its the same amp, same brand of speakers(or close). I think you'd probably have lower bass tones from the bigger subs, but you'd get more power(tonal) output with four 8" subs? Am I wrong? Please correct me if I am. Like I said it's been along time since I've had to mess with an audio system, so hope you guys can shed some light on this for me. If this is right, I'd probably lean towards the four 8"s.

    Thanks guys. I'll be out of town till Tues. So If I don't respond back till then, I'm probably not sober....MEX. here I come!!
     
  8. cccullen

    cccullen Full Member

    you would have more cone area with 2 12" so the bass wouldn't be as strong with the 8's but the 8's would give you some really clean bass. eD has some really nice subs. you won't be disappointed if you get the 8's.
     
  9. pedro quiroga

    pedro quiroga Well-Known Member

    you can get deep bass from any sub. it may not be as loud as a larger sub but they will go low.

    i almost bought 4 6.5 subs awhile back when parts express had some for 29 each, but i missed out.

    in the right box any sub can get loud.
     
  10. mistermike559

    mistermike559 Full Member

    Sorry guys, I know it's been about a month since I've last replied back. But in that time, I came to the conclusion of down sizing the subwoofer part of my system. I originally wanted to go with 600RMS no less, but from I really want my system to do- I think I'm gonna settle for 300-400RMS at the most. I'm gonna go with two 10" subs, an put 150-200RMS to each one. I've also been narrowing down my options, going with some subs that don't take to much power, but still look like they can hold when taking a beating. Only three stand out just because they take a minimum amount of watts, an require about the same amount of available sealed box space that I have to work with:

    JL Audio 10W1v2-4:
    Sensitivity 85 dB
    Continuous Power Handling (Pt): 150 Watts RMS
    Nominal Impedance (Znom): Single 4 ohm
    One-Way, Linear Excursion (Xmax)*: 0.375 inches / 9.5 mm
    Nominal Diameter: 10.0 inches / 250 mm
    Overall Diameter: 10.5 inches / 267 mm
    Mounting Depth: 4.34 inches / 110 mm
    Net Weight: 7.81 lbs. / 3.54 Kg
    Driver Displacement: 0.025 cu. ft. net / 0.71 liters
    Rec. Sealed Enclosure: 0.625 cu. ft. net / 17.7 liters

    RE Audio RE10D4:
    175W RMS, Dual 4 Ohm
    Electrical Q Value -Qes: 0.39
    Mechanical Q Value -Qms: 4.37
    Total Speaker Q Value -Qts: 0.36
    Free Air Resonance -Fs: 21.5 Hz
    Equivalent Compliance -Vas: 75.6 liters
    One-Way, Linear Excursion -Xmax: 12 mm
    Efficiency -SPL 1W/1m: 84.7 dB SPL
    Effective Piston Area -Sd: 322 cm^2
    Force Factor -Bl: 15.4
    Mounting Depth - 5"
    Sealed Box Dimensions: .35 - .5 cubic feet

    TMA T10D4P:
    Free Air Resonance (Fs): 29.5 Hz
    Electrical "Q" (Qes): 0.649
    Mechanical "Q" (Qms): 7.813
    Total Speaker "Q" (Qts): 0.599
    Equivalent Compliance (Vas): 1.716 cu. ft. / 48.59 liters
    One-Way, Linear Excursion (Xmax): 0.282 in. / 7.16 mm
    Efficiency (1W/1m): 86.6 dB SPL
    DC Resistance (Re): 1.6 ohm or 6.447 ohm
    Effective Piston Area (Sd): 55.4 sq. in. / 0.03575 sq. m.
    Sealed Enclosure Range: 0.50 - 0.80 cu. ft.

    If these were your only three options, which would you pick an why? All I know when it comes to specs is Efficency/Sensitivity, an OneWay Linear Excursion. But what other specs do you look at to determine which would be better?
     
  11. Ranger SVO

    Ranger SVO Full Member

    Pedro Quiroga's box suggestion is on the money because 90% of your sound is the box. Only 10% is product. And ProBox makes a super good product. Spend money on the box and the rest will just fall into place.

    Any way, thats my 10-cents worth