ideas for a crossover frequency

[vandal]

Hi, I am building a cab for my bass. I will put a 15 inch woofer (40Hz - 3 KHz) and a 6 inch mid driver 60hz-10khz. I dont want to put a tweeter as I dont like the very high frequencies for my sound. CAn anyone suggest a crossover frequency?
Driver alternatives or whatever ideas are very welcome.
Thanks

 

[jamie2112]

Wow just hold on there a second cowboy.What exactly are you talkin bout Willis? What kind of box? What are the Theil perameters for the speakers in question? You have to design your box around the speakers specs. You can't just throw speakers into any box and expect it to sound good. Although you do say you don't like hi frequencies in your sound so you may just go ahead with your plans and it may sound great.I would do a little searching on the DIY section of this forum myself ,if I wanted to build a box per say........just sayin you may want to dig a little more before starting this.Also you can't just get a crossover without the specs of the drivers...........again just sayin

 

[highfigh]

Hi, I am building a cab for my bass. I will put a 15 inch woofer (40Hz - 3 KHz) and a 6 inch mid driver 60hz-10khz. I dont want to put a tweeter as I dont like the very high frequencies for my sound. CAn anyone suggest a crossover frequency?
Driver alternatives or whatever ideas are very welcome.
Thanks

That's not going to be a well-balanced speaker. The woofer determines the overall perception of volume and a 6" mid won't do the mid-bass at a level that would allow a smooth transition from the woofer. In PA speakers, if a 15" woofer is used, it's common for an 8" or 10" to handle the mid-bass up to the highs. A 15" woofer can't do 3KHz well and some can't do it at all. At 3KHz, the dispersion will be terrible and you'd be able to aim it like a flashlight. Boom crash speakers are more annoying than anything else but sending 60Hz to the 6" when the woofer is already handling it is a waste of power to the mid and the overlap will cause all kinds of other problems.

 

[vandal]

Well I wasnt sure about the 6 inch anyway. As for the cutoff frequency the speakers are not going to be overlapping. Thats why I am looking for a suggestion for the crossover frequency. The frequencies i mention are the manufacturers given usable frequencies. I didnt mean that the drivers will be overlapping when working. As for the box I have alreay used the specs to design a box which will be covering the frequencies I need. What I really need is to know how much of my sound should be comming out of the woofer and how much out of the mid speaker.

 

[vandal]

Well I wasnt sure about the 6 inch anyway. As for the cutoff frequency the speakers are not going to be overlapping. Thats why I am looking for a suggestion for the crossover frequency. The frequencies i mention are the manufacturers given usable frequencies. I didnt mean that the drivers will be overlapping when working. As for the box I have alreay used the specs to design a box which will be covering the frequencies I need. What I really need is to know how much of my sound should be comming out of the woofer and how much out of the mid speaker.

 

[highfigh]

Well I wasnt sure about the 6 inch anyway. As for the cutoff frequency the speakers are not going to be overlapping. Thats why I am looking for a suggestion for the crossover frequency. The frequencies i mention are the manufacturers given usable frequencies. I didnt mean that the drivers will be overlapping when working. As for the box I have alreay used the specs to design a box which will be covering the frequencies I need. What I really need is to know how much of my sound should be comming out of the woofer and how much out of the mid speaker.

This question can't be answered without knowing what drivers you have in mind. The sensitivity and frequency response are needed and remember- just because the manufacturer lists usable frequency response doesn't mean it's going to work best. The upper and lower limits usually are a bit iffy. The distortion could be too high and the response may not be very even .

 

[flippo]

full range

wouldn't a full range driver like the fostex with appropriate box and a sub be the best bet?

 

[TLS Guy]

Well I wasnt sure about the 6 inch anyway. As for the cutoff frequency the speakers are not going to be overlapping. Thats why I am looking for a suggestion for the crossover frequency. The frequencies i mention are the manufacturers given usable frequencies. I didnt mean that the drivers will be overlapping when working. As for the box I have alreay used the specs to design a box which will be covering the frequencies I need. What I really need is to know how much of my sound should be comming out of the woofer and how much out of the mid speaker.

Drivers always overlap. No crossover is a brick wall. Crossovers have to be designed custom to work with each drivers unique electrical and acoustical parameters.

You can't set a crossover in isolation. You decide on a crossover frequency after carefully studying the acoustic responses of the drivers. A lot of drivers can not even be made to work together. So driver selection is crucial.

Leaving out a tweeter is a bad idea, as you will be driving the cone driver into its breakup range and have harsh increased treble output most likely.

Start with a two way speaker and choose a kit. You are nowhere near ready to design a speaker.

 

[Swerd]

I'm not trying to mock anyone who wants to try his hand at DIY speaker building. I really want to encourage them. But it seems these type of questions are getting repeated a lot lately.

Follow the links.

 

[jamie2112]

hey I know nothing about cars. I am going to build one.Can anyone tell me if I need pinstripes on my wheels or whitewalls? Just sayin............

 

[highfigh]

hey I know nothing about cars. I am going to build one.Can anyone tell me if I need pinstripes on my wheels or whitewalls? Just sayin............

Yes, you do need pinstripes. Also, you need to rotate the air in your tires on a regular basis.