Hello i want to build a diy 15 inch pa top speaker with a horn in a box now idk if the box 15LB100-8W is good for this use I have a specications for speaker but I never design a box now i guess that a I have to get a winisp and put in that spec and box parameters now idk and also i was thinking of using it as a subwoofer for some time iuntil i get other parts is that like going to be a problem?
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The 15LB100-8W is a good value speaker, but not much displacement for a "subwoofer".
The lower power 15LB075-UW4 worked well in the SS15 tapped horn, nearly the output of a pair used in bass reflex cabinets.
The lower power 15LB075-UW4 worked well in the SS15 tapped horn, nearly the output of a pair used in bass reflex cabinets.
I've compared both in a THAM15, fwiw: http://www.hifi-forum.de/index.php?action=browseT&forum_id=238&thread=189&postID=3#3
It probably would work OK up to ~1000Hz.
Stoneeh would have a better idea of what the driver sounds like, I've never tested or heard a 15LB100-8W myself.
Stoneeh would have a better idea of what the driver sounds like, I've never tested or heard a 15LB100-8W myself.
@weltersys @stoneeh ohh my English grammar i was thinking of building a pa top speaker but for the time beaing until i get all parts and calculate boxes to use it as a subwooferand later just put a driver in a top cabinet.
It is hard to beat these drivers for the value, most manufacturer calculate xmax by:
VoiceCoil-MagnetGap/3*2
22-11/3*2 = 7.33mm
That said, 15" had unbeatable value only a couple of years ago, but 12" and 18" are much better value now.
Double 12" using the box 12-280/8A are less than a single 15LB100-8W, and you will get slightly more displacement.
Using single 18" my personal opinion is that you get the most value from SB Audience BIANCO-18SW450 if you can make a large enclosure.
If you want a "compact" 18" and have a little bit more money the new NERO-18SW1900D is very impressive for the price.
VoiceCoil-MagnetGap/3*2
22-11/3*2 = 7.33mm
That said, 15" had unbeatable value only a couple of years ago, but 12" and 18" are much better value now.
Double 12" using the box 12-280/8A are less than a single 15LB100-8W, and you will get slightly more displacement.
Using single 18" my personal opinion is that you get the most value from SB Audience BIANCO-18SW450 if you can make a large enclosure.
If you want a "compact" 18" and have a little bit more money the new NERO-18SW1900D is very impressive for the price.
@KaffiMann Ahh i will have to edit a post as i sad i eant to build a 15 inch top box with those driver but for time i wanted to use it as a subwoofer until i get all parts.
Using this driver for bass is perfectly fine, the issue is that it will not be suitable for much lower than 40Hz and it is therefore more "woofer" than "subwoofer".
What kind of design are you building?
What kind of design are you building?
@KaffiMann well i dont really know what i wanted to do is to build it as simple as it can be becose i dont have that may power tools and i dont have a table saw to be able to cut perfectly what a one problem and how to i pair a tweeter with a woofer driver?
Then I suggest you find a carpenter friend to give you a good deal on making the enclosure.
To pair a woofer an a tweeter you need a crossover, or possibly an amplifier with integrated DSP would be better.
I expect you have access to a condenser microphone and a PC?
To pair a woofer an a tweeter you need a crossover, or possibly an amplifier with integrated DSP would be better.
I expect you have access to a condenser microphone and a PC?
@KaffiMann hmm well I will see what i can do about that what tweet and what horn do i use can you recomend me some models?
A dynamic mic works fine, it is not quite as good as a condenser microphone which is again not as good as a calibrated measurement microphone.
The important thing is to have a microphone that can help you verify that you made a proper crossover.
What kind of price are you thinking about for amplifier, horn and tweeter?
The important thing is to have a microphone that can help you verify that you made a proper crossover.
What kind of price are you thinking about for amplifier, horn and tweeter?
@KaffiMann well umm it is a xm8500 btw and i can pickup some AKG dtnacim mics from scool i do have access to crown xls 602 hmm and for a peinse idk really maybe 100€ for horn and a tweeter maybe less.
@KaffiMann well i do have pci soundblaser live what amp if pa amp I crown xls 602 i can borrow i think that it can do a 300x2 at 8 ohm. Bridge i think 1000w somting like that at 8ohm.
How are you going to manage the crossovers? I really would recommend some form of DSP, the best value per money solution may be the small 4x4 from Thomann.
https://www.thomannmusic.com/the_t.racks_dsp_4x4_mini_pro.htm
Given your level of understanding, use-case and budget, I would recommend the Fane 12-250 in a closed box. https://www.thomannmusic.com/fane_sovereign_12_250_tc.htm
This combined with your 2 channel amplifier would enable you to make a mono setup where you put the closed box Fane 12" on top of the subwoofer.
All the crossovers and freqency adjustment would be done with the DSP unit, use a microphone to verify that the frequency response is good with the help of REW:
https://www.roomeqwizard.com
If you stack the top on the sub you may get a good enough height for listening, should be possible to have this compact setup on some wheels so you can pull it around and hook it up to power wherever you want to play.
You could set the crossover around 200Hz if you make a vented design for bass, for TH or other solutions you may need to adjust the crossovers according to the limitations of the design.
The DSP can handle another amp+sub+top combo if you want to scale it up.
https://www.thomannmusic.com/the_t.racks_dsp_4x4_mini_pro.htm
Given your level of understanding, use-case and budget, I would recommend the Fane 12-250 in a closed box. https://www.thomannmusic.com/fane_sovereign_12_250_tc.htm
This combined with your 2 channel amplifier would enable you to make a mono setup where you put the closed box Fane 12" on top of the subwoofer.
All the crossovers and freqency adjustment would be done with the DSP unit, use a microphone to verify that the frequency response is good with the help of REW:
https://www.roomeqwizard.com
If you stack the top on the sub you may get a good enough height for listening, should be possible to have this compact setup on some wheels so you can pull it around and hook it up to power wherever you want to play.
You could set the crossover around 200Hz if you make a vented design for bass, for TH or other solutions you may need to adjust the crossovers according to the limitations of the design.
The DSP can handle another amp+sub+top combo if you want to scale it up.
@KaffiMann why not use 15LB100-8W and pair with a jbl celstion compesion drivers i didnt wanted to use 15LB100-8W for subwoofer in the first place I will build a 18 inch bass reflex box later. Btw good idea for mini dsp.