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View Full Version : 40 Hz Too High?



Harrison486
10-27-2005, 09:04 AM
Hey fellas. What's going on?

Alright, heres the deal. I picked up another CVR, so I am now in the process of deciding what I want to do with the new box for the 2 CVRs.

This setup is going to be a pure daily driver, no competing or anything. I listen to all rap or hip-hop.

Now, I emailed Kicker and asked what they thought the best daily driver box would be and they sent me some specs that ended up being tuned to around 40 hz. I thought 40 hz is pretty high for daily driver tuning. I PM'd Polecat and he said that 40 hz would be good and that I wouldn't lose much low end and that it would get loud and sound musically good.

My current box for my single CVR is 34 hz and I am just confused what to do. Is 40 hz too high or will it still be good? What do you guys think?

Johnny Drama
10-27-2005, 10:03 AM
Hey fellas. What's going on?

Alright, heres the deal. I picked up another CVR, so I am now in the process of deciding what I want to do with the new box for the 2 CVRs.

This setup is going to be a pure daily driver, no competing or anything. I listen to all rap or hip-hop.

Now, I emailed Kicker and asked what they thought the best daily driver box would be and they sent me some specs that ended up being tuned to around 40 hz. I thought 40 hz is pretty high for daily driver tuning. I PM'd Polecat and he said that 40 hz would be good and that I wouldn't lose much low end and that it would get loud and sound musically good.

My current box for my single CVR is 34 hz and I am just confused what to do. Is 40 hz too high or will it still be good? What do you guys think?
What size is the box going to be?

UndercoverPunk
10-27-2005, 10:05 AM
give it a try, if you don't like it, it's only what $30 more for a new box?

Loudrango112
10-27-2005, 10:10 AM
All of the kicker products I have used for my self or setup for my friends, almost all of them where tuned to around high 30's or LOW LOW 40's and those are what kicker recomended

(Comps, Comp VR's, L7's and the solo x. I never did anything with the l5's)

Harrison486
10-27-2005, 10:53 AM
All of the kicker products I have used for my self or setup for my friends, almost all of them where tuned to around high 30's or LOW LOW 40's and those are what kicker recomended

(Comps, Comp VR's, L7's and the solo x. I never did anything with the l5's)

Well how did it sound?


What size is the box going to be?

Kicker recommended 2.5 cf per CVR in the email, so I may try that. 2.0 per driver would be easier to fit though.

denim
10-27-2005, 03:29 PM
personally for daily driving I cant really put up with much higher than 34hz

DFW40
10-27-2005, 03:44 PM
Tuning to 40hz will put a nasty hump in the freq response which is good for SPL and anything in the mid 40's hz range. The higher you tune your box the more of a peak there will be in the response, the lower you tune the flatter the overall response which is good for daily drivers. I would tune to around 32-34 hz, if you want it louder then get bigger or better subs but I would try and keep it tuned low.

Mr. Opportunist
10-27-2005, 04:52 PM
id tune for low 30's, i dont like high peaks which the 40hz tuning will have...

jellyfish420
10-27-2005, 07:08 PM
i'd say high 30's low 40's. you listen mostly to rap and hip-hop. there is only a couple songs that even get into the low 30's...

DFW40
10-27-2005, 07:14 PM
i'd say high 30's low 40's. you listen mostly to rap and hip-hop. there is only a couple songs that even get into the low 30's...

True but it still will have a peakier sound, you will gain a couple of db's but lose sound quality and balance. How often do you really need those 2 or 3 extra db's in daily driving.

Harrison486
10-27-2005, 08:29 PM
Im still undecided as what to do...

2.0 cf per driver or 2.5 cf like kicker said in the email....

Stick at like 34hz or go anywhere else in the range up to 40hz...

DBfan187
10-27-2005, 08:32 PM
3.8cF NET, 34Hz 50"sq. of port.

Harrison486
10-27-2005, 09:02 PM
3.8cF NET, 34Hz 50"sq. of port.

Where are you pulling this from? And thats less than 2.0 per driver...

DBfan187
10-27-2005, 09:03 PM
Bb6p

jellyfish420
10-27-2005, 09:41 PM
True but it still will have a peakier sound, you will gain a couple of db's but lose sound quality and balance. How often do you really need those 2 or 3 extra db's in daily driving..
sound quality....in rap :laugh:
if he listens to manly rap, i gaurentee he will appreciate the peakier sound ;)

Harrison486
10-28-2005, 12:57 AM
sound quality....in rap :laugh:
if he listens to manly rap, i gaurentee he will appreciate the peakier sound ;)

You may be right. I have heard that the CVR is not exactly a SQ sub, but it sounds **** good to me at 34 hz right now....

Anyway, I am still confused where to tune. Somewhere between 34-40hz...

Will there be a noticeable difference between say 34 and 38?

Also, will there be a big difference between 2 cubes per sub or 2.5?

SAG3
10-28-2005, 01:48 AM
dude you asked the very people that made that sub what would be good for a box and you get an answer and what, you think that they wouldn't know what would work?

Harrison486
10-28-2005, 09:56 AM
Its always good to question things and get a second opinion...

Twistid
10-28-2005, 11:33 AM
no ones going to know more than the people that made the sub

just stick with what kicker said mmmkay?

Chance89
10-28-2005, 11:52 AM
I had my old box tuned to 40 (1.79ft3/sub) exactly and it was perfect for me....nice strong peaks and alright lows....coulnd'nt hit the really lows though.

Twistid
10-28-2005, 12:25 PM
BTW one of my friends has 2 kicker cvr's i think there 12"s in a sealed box and it slams even for being sealed... in a truck cab it makes all the pieces on the dash rattle + shake everything in the cabin even run off some chrome audiobahn amp

Harrison486
10-28-2005, 03:34 PM
Still don't know what to do....

DFW40
10-28-2005, 04:05 PM
split the difference and go with 37 hz and build the box on the large size of what is recommended. You will not hear that much of a difference between 34 hz and 38hz etc. I like really low bass so that is why I have my box tuned low, but it still has plenty of punch for rap.

Harrison486
10-28-2005, 08:19 PM
So if I go with what kicker says and tune around 40.... What am I going to be missing out?

Like everyone says im goinna lose low end, but what does that really mean?

SPL
10-30-2005, 12:28 AM
means you wont hit the low notes in teh bassline....you dont know what the lows are??? :confused:

Harrison486
10-30-2005, 12:30 AM
I didnt mean it like that...

I dont know how to explain it...

Any program that I can d/l and play songs through to see what frequency they are actually dropping to?

I am still confused what to tune to!

DFW40
10-31-2005, 12:20 PM
Try late night tip by three six mafia.
The low part of that song hits pretty darn low, if you have your box tuned around 40hz this low part will not be loud, if you have it tuned around 30-32 hz this low part will really rumble.

Harrison486
10-31-2005, 12:22 PM
See im so confused what to do...

I want this thing to be loud to the ear... couldnt really give a **** about a mic...

Now its also awesome to feel the rumbling

My current box is 34hz...

Part of me wants to tune real low like 30-32hz to feel the real lows...

Another part of me wants to tune around 35ish hz...

And then another part of me wants to tune around 38-40hz cause kicker says it will sound great with music...

DFW40
10-31-2005, 12:39 PM
All that tuning higher does is increase the volume of a small range of freq, usually from right around the tuning and about 5 or 6 hz above that. So if you tune around 40hz you will notice extra output at 40-46 hz which is great for songs that fall into that range but you will have less volume on freq below that range. The higher you tune the more uneven your bass sounds, you will have a bass note that blows your head off then the next note you cannot even hear. When you tune low most of the notes are around the same volume.

Harrison486
10-31-2005, 01:23 PM
Hmmm...

Im basically considering three options... 32 hz, 35 hz, 38 hz...

I know that there wont be HUGE differences between any, but obviously there will be some...

JimJ
10-31-2005, 01:26 PM
27Hz :)

UndercoverPunk
10-31-2005, 01:28 PM
I personally don't see myself tuning higher than 30 unless it's for an SPL specific install.

Harrison486
10-31-2005, 01:35 PM
27Hz :)

Are you being serious?

Or just trying to f with my head:crying: ?

Harrison486
10-31-2005, 01:51 PM
I guess I just have it in my head that something like 32 hz WONT be loud...

Am I wrong?

Will tuning to 35 or 38 be THAT much louder than 32?

DFW40
10-31-2005, 02:00 PM
It will still be loud, like I said earlier you will get like a 3 or 4 db boost on certain freq if you tune high but you lose a couple of db's on the low end. 32 hz is where you should tune those subs if you ask me.

Harrison486
10-31-2005, 08:54 PM
I guess I just have it in my head that something like 32 hz WONT be loud...

Am I wrong?

Will tuning to 35 or 38 be THAT much louder than 32?

Anyone else have an opinion?

swimfreak26
10-31-2005, 10:46 PM
I personally like the sound of 30-32Hz better than anything, but I've never been concerned with being extremly loud. Tuning near 40 you really won't lose my quality in the majority of your rap music. There are a few songs that you'll notice the steep roll-off at the low end, but all in all it won't be too bad.

I would say to mess with box sizes a bit and see what you want to give up. Tuning a box to 30Hz takes quite a bit more port length (ie gross volume) than tuning a box to 40Hz. I would figure out what kind of space you have to deal with, then mess with the numbers a little bit and see if you can even afford to tune low like 32, or if you're only option will be to tune high.

Harrison486
11-01-2005, 10:53 AM
Ok so I emailed KICKER again with my concerns and this was the reply:

The tuning of 12's between 37 and 40 is a great range. Most music has
the main amount of bass between 40 and 50 hertz. The woofers in those
enclosures will still play down to 25 hertz and up to 100 hertz. Our
favorite box for the CVR12's is the street bass box. We still recommend you
build each chamber (the woofers should be in separate chambers) to 2.82
cubic feet with a port opening of 33 square inches and a port length of
16.5" for each chamber.

Drew Hazel
Technical Support
Stillwater Designs, Inc.

That comes out to 2.5 net for each woofer and tuned round 40....

What do you guys think? Im still torn what to do :(

psych0ticnemes1
11-01-2005, 11:02 AM
Ok so I emailed KICKER again with my concerns and this was the reply:

The tuning of 12's between 37 and 40 is a great range. Most music has
the main amount of bass between 40 and 50 hertz. The woofers in those
enclosures will still play down to 25 hertz and up to 100 hertz. Our
favorite box for the CVR12's is the street bass box. We still recommend you
build each chamber (the woofers should be in separate chambers) to 2.82
cubic feet with a port opening of 33 square inches and a port length of
16.5" for each chamber.

Drew Hazel
Technical Support
Stillwater Designs, Inc.

That comes out to 2.5 net for each woofer and tuned round 40....

What do you guys think? Im still torn what to do :(


tune to 35, 2.5 cubes per sub... will be loud and sound good..

Harrison486
11-01-2005, 09:31 PM
ttt

Harrison486
11-03-2005, 07:34 PM
:crying: