15 vs 18
Senior Member
Joined: Jan 2008
Posts: 2,934
Likes: 2
From: Houston
ahhh, h/u you can set the subwoofer level all the way up, thats basically telling the sub to see full voltage from the h/u to the amp, and bass, i'd leave at 0 or how you have it, i have my h/u set up at
bass - 0 treb - +3 loudness off
bass crossover is at +12 at 60hz (i believe) treb - 10khz
never turn it up passed 25-26 out of 35
bass - 0 treb - +3 loudness off
bass crossover is at +12 at 60hz (i believe) treb - 10khz
never turn it up passed 25-26 out of 35
Technical Article Contributor
Joined: Aug 2006
Posts: 7,862
Likes: 0
From: Northern California
Also, you guys just get these big *** subs to go boom down the street, but have stock speakers up front..how can you stand that? No front sound stage, just bass blasting in your head...
I guess thats whats cool nowadays...
You shouldn't have anything set on the bass boost. Your gains should be set perfectly to match your HU volume, thats it. Keep a flat response.
And FYI, underpowering a speaker CAN be a bad thing. Yeah, your subwoofer isn't working too hard, but your amp sure as hell is. The amp playing at full power all the time will surely shorten its life.
Senior Member
Joined: Jan 2008
Posts: 2,934
Likes: 2
From: Houston
All you need is 1 deep cycle battery and the big 3 upgrade and a high output alternator. multiple batteries wont do anything for you until you upgrade your electrical, the stock alternator will only do so much.
Also, you guys just get these big *** subs to go boom down the street, but have stock speakers up front..how can you stand that? No front sound stage, just bass blasting in your head...
I guess thats whats cool nowadays...
You shouldn't have anything set on the bass boost. Your gains should be set perfectly to match your HU volume, thats it. Keep a flat response.
And FYI, underpowering a speaker CAN be a bad thing. Yeah, your subwoofer isn't working too hard, but your amp sure as hell is. The amp playing at full power all the time will surely shorten its life.
Also, you guys just get these big *** subs to go boom down the street, but have stock speakers up front..how can you stand that? No front sound stage, just bass blasting in your head...
I guess thats whats cool nowadays...
You shouldn't have anything set on the bass boost. Your gains should be set perfectly to match your HU volume, thats it. Keep a flat response.
And FYI, underpowering a speaker CAN be a bad thing. Yeah, your subwoofer isn't working too hard, but your amp sure as hell is. The amp playing at full power all the time will surely shorten its life.
i have a big sub yes, but i have stock speakers up front, the stock speakers being powered off the h/u works just fine, you can hear it blend in perfectly with the sub, might not be crisp and clear like some like it, but it keeps up just fine for me. theres a few people on here you can ask that have heard my stereo system and they can vouch for me that the stock 6x8's blend in fine and it isnt all bass, remember i dont have no crappy kicker stuff, so bass isnt in your face. and the amp isnt struggling at all. you set your gains to where it isnt trying to draw every amp of current out of your electrical system.
Senior Member
Joined: Sep 2003
Posts: 6,760
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From: Nebraska
Sound? Just short of full on sex. Probably right around that oral sex region. Need to do a little tweeking and that should probably pop the cherry.
No mic readings. Id be curious to get it metered, prob never will though. Output though? At times, the whole headliner looks like the cone of a speaker moving, the steering column shakes, and I sometimes feel the urge to shoot quarters off the roof. And thats sealed. Then again, it is a Ford so those things might happen with a stock stereo also...
Its no spl competition vehicle, but for daily its more than enough, for me anyway.
Thread Starter
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Senior Member
Joined: Jun 2008
Posts: 519
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From: San Diego
hahaha
nice man,
i wouldnt mind getting blown every time i get into my car, so that works for me.
im not looking to do any competitions either, just enough to rattle my brain a little
nice man,
i wouldnt mind getting blown every time i get into my car, so that works for me.
im not looking to do any competitions either, just enough to rattle my brain a little
Technical Article Contributor
Joined: Aug 2006
Posts: 7,862
Likes: 0
From: Northern California
Not attacking you, dont worry. Just curious as to how you can handle 15 watt speakers in the front door with 700 watts of bass behind your head. But everyone has their own personal preferences, nothing wrong with that. 
But like i said, HO alternator, big3 upgrade, and a deep cycle battery and your amplifier will power that 18" beast all day.
But like i said, HO alternator, big3 upgrade, and a deep cycle battery and your amplifier will power that 18" beast all day.
Senior Member
Joined: Jan 2008
Posts: 2,934
Likes: 2
From: Houston
lol, the door speakers can take a beating, might not like it, but i've had my h/u running them for about a year now and they seem to still be working their butts off. and haha right now i have about 900w behind my head, and next week should have easily 2000+ = DDD
really wake this btl up, then i'll need to upgrade the front with some 6.5 comps and some nice tweets.
really wake this btl up, then i'll need to upgrade the front with some 6.5 comps and some nice tweets.
Technical Article Contributor
Joined: Aug 2006
Posts: 7,862
Likes: 0
From: Northern California
Yes components will help out a ton, make sure to amp them.
What model amp do you have? Those hifonics tend to be incredibly overrated, hence why they arent too expensive. 900 watts is possible though with their "higher end" stuff.
I used to have a big ported box in high school, and when i would turn up the stock speakers to a level where they could actually try to keep up they just distorted and were incredibly harsh...not to mention the midbass was non-existant.
One other thing...when you get some time/money, deaden your truck. You think your sub is loud now, deadening will make a huge difference.
What model amp do you have? Those hifonics tend to be incredibly overrated, hence why they arent too expensive. 900 watts is possible though with their "higher end" stuff.
I used to have a big ported box in high school, and when i would turn up the stock speakers to a level where they could actually try to keep up they just distorted and were incredibly harsh...not to mention the midbass was non-existant.
One other thing...when you get some time/money, deaden your truck. You think your sub is loud now, deadening will make a huge difference.
Senior Member
Joined: Jan 2008
Posts: 2,934
Likes: 2
From: Houston
yeah, i have the hifonics bxi1206d, i know its crap, i was just wanting to get something for myself for christmas last year. blehhh
and yeah no midbass whatsoever for stock speaks. haha.
and yeah, i have some deadener lying around, just waiting for a weekend im not busy, with the hurricane coming through a few weeks ago, we just got power back and still cleaning up a little here and there, few days i get to replace our whole fence = [ and neighbors too.
and yeah no midbass whatsoever for stock speaks. haha.
and yeah, i have some deadener lying around, just waiting for a weekend im not busy, with the hurricane coming through a few weeks ago, we just got power back and still cleaning up a little here and there, few days i get to replace our whole fence = [ and neighbors too.
Senior Member
Joined: Apr 2007
Posts: 4,494
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From: Slidell, LA
(This is Pt. 1 of 3 replies)
Wow, people this is just like a thread on CA.com. Its horrible. Deserves the FAILBOAT!
First, 09 xB = Waste of money & Civic-esque Fartcan.
What will you be doing with the car (cough cough rounded box)? Traveling to and from college? Hauling groceries? etc....
The 18 is only about 27sqin bigger...
Why SPL? What brought about that?
Ooh I love Cookie cutters...
Uhh, definately need more than kinetics....
18's are fun!!!
Stock 130 on a 3000?!?!?!?!? HORRIBLE IDEA! New Alt NOW!
3000w/11v (low dip possible) = 281 Amps... That doesnt even include AC compressors, vehicle computers, etc... Thats over 2x the output. You will fry that amp pretty damn fast.
Agreed, entirely.
BS on entire post.
You can MOST DEFINATELY CLIP AN AMP! Just turn the volume up to a clipped output. It happens a lot more than you notice. And is Ron Jeremy HARD on the amp as well.
Gain is the most important factor on clipping amps/spks.
SSF/IF - Has nothing to do with causing clipping.
LPF - Also has nothing to do with causing clipping. Just lets certain freqs through...
Bass Boost - Doesnt always clip spks. Its all in how its used.
Wow, people this is just like a thread on CA.com. Its horrible. Deserves the FAILBOAT!
ok, give me your opinion on my situation here
im looking at whether i should get a 15 inch or 18 inch sub
it will be the Fi BL series and its going into a 2009 Scion xB
i will be pushing 1200 watts rms
the 18 recommends a box between 5 and 10 cubic ft after port,
the max i think i will be able to give will be between 5.5 and 6.5 ft after port
the 15 recommends between 2.4 and 4 ft, and i would definitely be able to fit that.
so what do you guys think, a slightly choked 18 or a 15?
im looking at whether i should get a 15 inch or 18 inch sub
it will be the Fi BL series and its going into a 2009 Scion xB
i will be pushing 1200 watts rms
the 18 recommends a box between 5 and 10 cubic ft after port,
the max i think i will be able to give will be between 5.5 and 6.5 ft after port
the 15 recommends between 2.4 and 4 ft, and i would definitely be able to fit that.
so what do you guys think, a slightly choked 18 or a 15?
What will you be doing with the car (cough cough rounded box)? Traveling to and from college? Hauling groceries? etc....
that btl is gonna be insane. i wish i had the money to do a setup like that
but do you really think the 15 would be louder? im really mostly looking for SPL (unless the 18 would sound like butthole in a small box)
msall
right now money is an issue.
the 18 would only be $310, and the 15 even cheaper....and an 18 is bigger than 2 12's.
but what 12's would you recommend that run 500-600 rms?
like i said, im mostly looking for output here, without it sounding like the audible representation of a crusty piece of dog *****
but do you really think the 15 would be louder? im really mostly looking for SPL (unless the 18 would sound like butthole in a small box)
msall
right now money is an issue.
the 18 would only be $310, and the 15 even cheaper....and an 18 is bigger than 2 12's.
but what 12's would you recommend that run 500-600 rms?
like i said, im mostly looking for output here, without it sounding like the audible representation of a crusty piece of dog *****
Why SPL? What brought about that?
Stock 130 on a 3000?!?!?!?!? HORRIBLE IDEA! New Alt NOW!
3000w/11v (low dip possible) = 281 Amps... That doesnt even include AC compressors, vehicle computers, etc... Thats over 2x the output. You will fry that amp pretty damn fast.
Orion d2400
1200rms
Fi definitely is doing it for me with the prices. i would rather give the full power to a BL than half the power to a BTL, i dont want to risk clipping my amp
i would look into a HO alternator. i got mine done in my truck for 200 bucks at a local shop. 200 amps.
1200rms
Fi definitely is doing it for me with the prices. i would rather give the full power to a BL than half the power to a BTL, i dont want to risk clipping my amp
i would look into a HO alternator. i got mine done in my truck for 200 bucks at a local shop. 200 amps.
not bad at what ohm though? is it 1 ohm stable?
yeah, full power to a sub then underpowering it, but still you cant clip a amp, you can clip a speaker though, but thats if you dont set your gains right, only thing you really need to mess with on a amp to avoid clipping it is.
-gain
-ssf (if you're doing a ported box)
-lpf
thats about it, leave bass boost alone and you'll be fine.
i have the btl on my hifonics bxi1206d and its playing just fine. im not even giving it suggested power and it slams for what it is. everyone says underpowering a speaker is bad for it, no thats nowhere near correct, only reason why people say that is because they go out and mess with their gains and try to get it to sound as loud as possible which ends up being bass boost all the way up, gain all the way up, and bass on the h/u all the way up, that leads to a clipped signal and there goes their sub they just spent all their money on.
yeah, full power to a sub then underpowering it, but still you cant clip a amp, you can clip a speaker though, but thats if you dont set your gains right, only thing you really need to mess with on a amp to avoid clipping it is.
-gain
-ssf (if you're doing a ported box)
-lpf
thats about it, leave bass boost alone and you'll be fine.
i have the btl on my hifonics bxi1206d and its playing just fine. im not even giving it suggested power and it slams for what it is. everyone says underpowering a speaker is bad for it, no thats nowhere near correct, only reason why people say that is because they go out and mess with their gains and try to get it to sound as loud as possible which ends up being bass boost all the way up, gain all the way up, and bass on the h/u all the way up, that leads to a clipped signal and there goes their sub they just spent all their money on.
You can MOST DEFINATELY CLIP AN AMP! Just turn the volume up to a clipped output. It happens a lot more than you notice. And is Ron Jeremy HARD on the amp as well.
Gain is the most important factor on clipping amps/spks.
SSF/IF - Has nothing to do with causing clipping.
LPF - Also has nothing to do with causing clipping. Just lets certain freqs through...
Bass Boost - Doesnt always clip spks. Its all in how its used.
Last edited by Low_e_Red; Oct 8, 2008 at 12:26 AM.
Senior Member
Joined: Apr 2007
Posts: 4,494
Likes: 0
From: Slidell, LA
Part 2 of 3
Full voltage is what you want...
Alpine or Kenwood deck?
Per your comments earlier, turning the bass boost up on the deck is a bad idea... Recheck your levels....
Dear god, electrical needs to be the first goal. ESP the big 3 and alt.
But 2 DpCyc Batts is a must. You really will need help filtering the AC out of that line.
EWW. I hate straight bass.
Bass boost used correctly can be a very nice tool.
Agreed.
ahhh, h/u you can set the subwoofer level all the way up, thats basically telling the sub to see full voltage from the h/u to the amp, and bass, i'd leave at 0 or how you have it, i have my h/u set up at
bass - 0 treb - +3 loudness off
bass crossover is at +12 at 60hz (i believe) treb - 10khz
never turn it up passed 25-26 out of 35
bass - 0 treb - +3 loudness off
bass crossover is at +12 at 60hz (i believe) treb - 10khz
never turn it up passed 25-26 out of 35
Alpine or Kenwood deck?
Per your comments earlier, turning the bass boost up on the deck is a bad idea... Recheck your levels....
All you need is 1 deep cycle battery and the big 3 upgrade and a high output alternator. multiple batteries wont do anything for you until you upgrade your electrical, the stock alternator will only do so much.
Also, you guys just get these big *** subs to go boom down the street, but have stock speakers up front..how can you stand that? No front sound stage, just bass blasting in your head...
I guess thats whats cool nowadays...
You shouldn't have anything set on the bass boost. Your gains should be set perfectly to match your HU volume, thats it. Keep a flat response.
And FYI, underpowering a speaker CAN be a bad thing. Yeah, your subwoofer isn't working too hard, but your amp sure as hell is. The amp playing at full power all the time will surely shorten its life.
Also, you guys just get these big *** subs to go boom down the street, but have stock speakers up front..how can you stand that? No front sound stage, just bass blasting in your head...
I guess thats whats cool nowadays...
You shouldn't have anything set on the bass boost. Your gains should be set perfectly to match your HU volume, thats it. Keep a flat response.
And FYI, underpowering a speaker CAN be a bad thing. Yeah, your subwoofer isn't working too hard, but your amp sure as hell is. The amp playing at full power all the time will surely shorten its life.
But 2 DpCyc Batts is a must. You really will need help filtering the AC out of that line.
EWW. I hate straight bass.
Bass boost used correctly can be a very nice tool.
Agreed.