L7s vs CVXs/12s vs 15s
03-02-2009, 01:28 PM
#1
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L7s vs CVXs/12s vs 15s
I have been doing some research on these two woofers, and I have noticed that they have the same power rating. If this is the case, what is the big difference between the two? Would the L7s be any louder? Also, what would the approximate db difference be between a set of 12s or a set of 15s? I'm thinking a set of 15s might be a bit much, I have a 2001 mazda protege. Would I have any problems fitting an enclosure for two 15s in the trunk? Thanks guys I really appreciate your help!!!
03-02-2009, 02:32 PM
#2
Same motors, same coils, same technologies..other than shape. The l7's will have slightly more output due to the fact that the cones have more area. THE CVX's are L7's with round cones.
the 15" CVX's are almost 4dB more sensitive at 1W1M than the L7's so theoretically they wouldn't need as much power to get the same output.
Really if you have the height, I'd reccomend a single 15" L7 in a nice sized custom ported enclosure.
A pair of 15's you'd pretty much be forced to go sealed, and you'd be spending more money on parts for less bass.
Going for SPL. SQ, SQL?..
the 15" CVX's are almost 4dB more sensitive at 1W1M than the L7's so theoretically they wouldn't need as much power to get the same output.
Really if you have the height, I'd reccomend a single 15" L7 in a nice sized custom ported enclosure.
A pair of 15's you'd pretty much be forced to go sealed, and you'd be spending more money on parts for less bass.
Going for SPL. SQ, SQL?..
03-02-2009, 03:04 PM
#3
The l7 is one of the best consumer woofers out there. I have had alot of woofers and the l7s were definately near the top. For the price they are great but for some reason it seems that the 15" just doesn't do as well as you would expect compared to the 10s and 12s which are really good. If I were you I would get 2 10s because in a trunk car 2 12s will block the airflow much more and so the 10s will probobly do much better
03-02-2009, 03:17 PM
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Sikk Nation: I am going for SPL, but a little bit of sq would be nice
SQ is deffinitly not my main concern though. Id like to get between 135-140db
ShockingCanada: Would the two tens be as loud as a single 15"? Also, what kind of dBs could I expect to hit with two tens vs the single 15"?
Thanks guys!
SQ is deffinitly not my main concern though. Id like to get between 135-140dbShockingCanada: Would the two tens be as loud as a single 15"? Also, what kind of dBs could I expect to hit with two tens vs the single 15"?
Thanks guys!
03-02-2009, 03:24 PM
#5
You should be able to break 140 with a single 12 in an SPL tuned ported box with adequate power. Just seal up the trunk and invest is some sound deadening and a nice big amp with the supporting electrical system. (BIG 3, good battery). A Pair of 10's puts you in the sale class as a single 12, so more cone area always wins the day. A pair of 10's in the right box should more than get you to your goal.
03-02-2009, 03:59 PM
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Sikk Nation: When you say "nice big amp" do you mean properly power them or slightly over power them? I have heard that it is common to over power the subs to get more spl. But with that being said, I dont want to invest all of this money and have these things blow on me! What would you reccomend for a good amp to power two tens?
03-02-2009, 04:02 PM
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And also, I have yet to understand the whole concept of "bridging". What is it? Is it worth it to do it? Would it be better to run two seperate amps (one to each sub)? I know I'm asking alot of questions but you have to learn somehow right? Thanks again guys!
but you have to learn somehow right? Thanks again guys!
03-02-2009, 04:22 PM
#8
running 1 Mono amp would be much better for SPL applications. Keeps all cone movements uniform between the 2 subs. Bridging is taking 2 channels outputs and turning them into 1 channel. It uses one channel for the negative only. and another channel for the positive only so you can squeeze more power out of a multi channel amp.
I always reccomend getting amplifiers that make at least 20% more power than your equipment can handle. This will ensure good operation of all components within their specs as well as avoiding sending a clipped signal to the subs.
The L7's for short periods of time can handle alot more than their rating. For music, the 12's should have no problem getting a 1000Wrms each Provided the nut between the seat and the steering wheel doesn't overdrive them. (if you hear them bottoming out.. turn the volume **** down).
I always reccomend getting amplifiers that make at least 20% more power than your equipment can handle. This will ensure good operation of all components within their specs as well as avoiding sending a clipped signal to the subs.
The L7's for short periods of time can handle alot more than their rating. For music, the 12's should have no problem getting a 1000Wrms each Provided the nut between the seat and the steering wheel doesn't overdrive them. (if you hear them bottoming out.. turn the volume **** down).
03-02-2009, 05:00 PM
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The l7 is one of the best consumer woofers out there. I have had alot of woofers and the l7s were definately near the top. For the price they are great but for some reason it seems that the 15" just doesn't do as well as you would expect compared to the 10s and 12s which are really good. If I were you I would get 2 10s because in a trunk car 2 12s will block the airflow much more and so the 10s will probobly do much better
03-02-2009, 05:36 PM
#10
2 Kicker CVR 12's in the Kicker prefab box ...
139 facing the back ...
140 moved over to the side of the trunk
141 flipped upside down, facing the seats and in the corner
They're enough bump for most people. Most.
(Mind you, these were specific Hz's, music I'm sure I was hitting 120's-130's ...)
I was very happy though
139 facing the back ...
140 moved over to the side of the trunk
141 flipped upside down, facing the seats and in the corner
They're enough bump for most people. Most.
(Mind you, these were specific Hz's, music I'm sure I was hitting 120's-130's ...)
I was very happy though
Last edited by DaVibe; 03-02-2009 at 05:41 PM.
