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I'm thinking about buying a Boston Acoustics G310-4 10" sub from Crutchfield and placing it in a 1.3cu.ft. ported enclosure tuned to 36Hz (looked like what the sub was best suited for). The enclosure would measure 11-7/8"TD x 14-5/8"BD x 19-3/4"W x 12-7/8"H and be made from 5/8" MDF with a double baffle.
What do you guys think? Would this be likely to produce clean crisp bass, yet be able to hit hard enough for when I want to really feel it?
My amp is an Alpine rated at 400RMS@ 4ohms, so it should produce clean power.
My hope is it'll outshine my current setup of two 12" Rockford P2 subs getting around 500RMS, yet take up less space.My current enclosure is 14" deep as well, but 26" wide, so my amp has to sit in front of the subs instead of off to the side, thus I end up with little truck space left.
My issues with the P2 subs are they just don't seem to produce clean crisp punchy bass and only seem to play loud and hit hard with Rap and Hip Hop. They're fairly lifeless on everything else. Which sucks, because I listen to a very wide range of music.
As far as your setup, the match looks good. Slightly overpowered but tuned correctly this isn't an issue.
What kind of box are your P2's in??? Are they reunning off of your current amp??? If so, you have 2 subs both rated at 400 RMS max. You have 500 RMS going to the subs. You may not be getting clean good bass because you are underpowering them and clipping the signal.
I can not say if it will sound better as it's always a personal preference. I would always recommend 3/4 MDF instead of 5/8 as well.
I doubt, set up correctly, that the 1 10 inch would out perform those P2's, at least the 10 you are choosing. If you are looking for more space that's just a compromise you will have to deal with a I supose.
Or depending on the model of the Alpine amp, you might be able to get more power out of it at 2-ohms, which would allow you to pick a different 10-inch sub that MIGHT be louder than the P2's.
Hope This Helps!!!
Anyone else have suggestions?
2002 Ford Focus JVC KD-A815 Sony CDX-GT410u Sony XT-100HD HD Tuner Stock
speakers, no amp, no subs
Very well noted
The subs are supposed to be rated at 250RMS each (they're older models ) and they are in a 1cuft per chamber sealed enclosure lined with polyester batting. Mine are the DVC 4 ohm models and they are wired up for a 4 ohm final load. Well, my DMM jumps back and forth from 4-5 ohms. It's a pretty crappy DMM, the resistance is says 0.04 or 0.05 as it's not able to measure that low of resistance. Each voice coil does the same thing, measuring 4 or 5, my DMM won't make up it's mind.
My amp is an older Kenwood KAC-7204 that I'm using to push the Rockford subs.
Honestly, I don't know why they sound so tiny with everything but Rap and Hip hop. I can listen to Linkin Park and hardly tell they're playing and then listen to Three 6 Mafia and get plenty of bass out of them. I just don't get it.
As far as my Alpine, it's an older MRD-M605, so yes, it pumps out 600rMS @ 2 ohms. However, I'm looking for a happy median, I want a nice tight punchy low end with my Country, Rock, and Pop music yet be able to feel the sub when I'm playing Rap and Hip Hop. I've heard a sub in a properly constructed and tuned enclosure can still produce clean, tight, and punchy bass, well, smaller drivers at least. Don't think the same could be said if you were using an 18" sub.
Anyways, I pop in some Rap and crank up my gain until the subs have noticeable distortion then turn it back down until it disappears. If I try to set the gain on the amp playing Rock then the subs distort horribly when I play rap. I guess you'd say they are clipping or something. Defiantly bottoming out and sound horrible, not to mention the output drops off severely. So as it stands, I have acceptable bass with my Rap and Hip hop, but I'd swear my rear 6x9s pump out more bass on rock and pop music. I have the sub crossed over at 80Hz and my HPF set at 100Hz. Does most rock and pop music not have bass below 100Hz? Don't know why I asked, I hear people with subs slamming when playing rock music all the time. I think my problem is my subs and amp are too old and lived their life. The subs have some sort of acyclic coating on the cone and on my subs they have a hand full of cracks in it from years of playing. At least I don't think anything has ever hit the cone to cause these fractures.
Oh, and the main reasons I'm looking at the G3 is because I've always heard B/A is very sound quality oriented, many reviewers claim just one hit's harder and sounds cleaner than many dual sub setups, and the price drop in it is just too tempting. I guess if I could find another sub that'd perform better for a similar cost I wouldn't object to getting it instead. Might go ahead and place an order for the g3 tonight though, just in case it sells out and I do end up wanting to go that route.
Oh, and I've heard many claim a ported setup is easily louder than a sealed, so I thought that maybe the single, more powerful 10" in a ported enclosure would be on par with the two 12s I have (on Rap and Hip Hop), yet sound cleaner and hopefully perform better (be able to tell there's a sub there) with Rock, Pop, Country, and pretty much everything other than Rap and Hip Hop that I listen to.
In a smaller, .75 enclosure I bet they would be tighter. BUT, A well built ported box is something people swear by so I can't rule against that. One thing though, it is impossible to wire 2 subs that are 4 ohm DVC to produce a 4 ohm load. Running in paralell puts you at 1 ohm unless maybe you have 1 in series and the other in paralell, which makes no sense at all. I'm going with this.... bet/build a good ported box, ask J Ro (Crutchfield ported box expert) about the setup, and go with a 500-600 4 ohm DVC sub wired in paralell. I believe this would be your best option at this point. It would give you more space, sound better, and MAY be louder depending on how you have it set up. And another thing..... check your crossover settings on the amp. The reason you get that loud on some rap over some others is probably how low it is set or the use of bass boost which boosts the specified frequency, most of the time around 40Hz. And all music with any bass hits well below 100 hz. My sub amp is set at 90 Hz. Good luck
Try setting your highpass filter a notch higher and also changing the phase of the subs or the full range speakers. I am thinking you might have some frequency cancellation on some of the higher bass notes and/or some minor phasing issues. Also, be sure you have your head volume set just under distortion with the amp gains turned all the way down, then set your amp gains just under distortion at that volume and EQ settings.
Bozman it is impossible to wire 2 subs that are 4 ohm DVC to produce a 4 ohm load
They would be wired in series-parallel to be a 4 ohm load to the amp -
I agree, turn bass boost all the way down or off. 85 hz lowpass and 120 hz highpass are good places to start.
Not using any bass boost on the amp (just the preset EQ's of the HU) and the old subs (RF) were DVC 4 ohm, the new sub (B/A) is a SVC 4 ohm. I had the volume of the HU at maybe half volume when setting the gain, well be low the point of distorting. I'll play with the crossovers and see what happens.
OK, well the volume of the head needs to be set just below the level of distortion, with the amp gains turned all the way down, then set the amp gains to just below the level of distortion or set with a DMM. EQ and bass boost are not the same.
None of your previous posts say anything except 2 DVC 4 ohm subs ?
Wait, I need to set my HU to the loudest undistorted volume level? I never turn it up that loud, so wouldn't I be forcing myself to loose some of the output of the subs in that case? My HU is a Sony DSX-S210X and I don't go past volume level 20 on it, but I think it goes up to 50 or something like that. As for the EG and bass boost being different, I don't so much see how. Both add or cut the output of a frequency. Using the Xplod EQ setting put a lot of gain on lower frequencies, I'm not sure exactly at what frequency, but I'd say it's probably like +6dB at 60Hz or something. Bass boosts do the same exact thing, except usually at a lower frequency right? So how are they not similar?
Anyways, I'm not sure I understand the following, "
GLHNone of your previous posts say anything except 2 DVC 4 ohm subs ?
My old subs are DVC 4 ohm models of the 12" P2 rated at 250RMS and they are wired up for a 4 ohm final load at my amp. The B/A sub I'm looking at getting is a SVC 4 ohm sub. Please, inform me of what other information I need to include. I began this thread looking for input on a new sub, not figuring out how to make my old subs work. I'm pretty much tired of my old P2 subs, they've never impressed me. Even if I could find a way to make them sound exactly how I want a sub to sound, I'm really not looking to keep them.
Don't want a nicknameWait, I need to set my HU to the loudest undistorted volume level? I never turn it up that loud, so wouldn't I be forcing myself to loose some of the output of the subs in that case?
The above recommendation is to ensure you don't damage your subs (basically regardless of what you do). If you only turn the head unit up to 20, you will be losing a good bit of bass at 20 on the volume dial.
You could also set the gain lower than what that gives you if you had too much bass that way.
Don't want a nicknameUsing the Xplod EQ setting put a lot of gain on lower frequencies, I'm not sure exactly at what frequency, but I'd say it's probably like +6dB at 60Hz or something. Bass boosts do the same exact thing, except usually at a lower frequency right? So how are they not similar?
GLH said they were not the same - not that they were not similar. If one is at 45 and one is at 60, they aren't the same. Plus they might have a different "Q-Factor" - how many other frequencies they affect when you change them.
Yeah, I don't think I'll set my volume level to 35 or anything when setting the gain, if I'm already lacking in bass on some music then do that will cause me to be lacking more so. No offense.
I understand on the bass boost vs EQ, I think the amp has the ability to boost the output around 40Hz upwards of 18dB. That's well beyond the amount my HU can boost the frequency. I'd have to play with the EQ, but I think it has the ability to boost 40 something Hertz or 60 something Hertz (my choice which frequency to boost) in the lower frequency range by upwards of 6dB. I also believe it has three different Q factors to choose from, but perhaps I'm mistaking that with the HPF roll off slope as I know it has three slope settings.
I have no further comment.
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