Recomnbed woofers/Mids for punchy yet deep bass?

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Hi;
I would like to build medium sized bass reflex speakers.
I would like to have a bass sound which is "punchy" (vs. muddy) yet deep.

Which drivers would you recommend in the price range of up to $150 per element?

Which parameters need I look for in those drivers?

Thanks in advance

[GregKramer]

Hello,

The question is a bit to open ended to get many responses. First would be what size of box. Medium is different to everyone. Is it a two way or a 3 way? What do you mean by deep, understanding that deep and efficiency will be a trade off? Finally punchy usually describes a response rise in the 70Hz area, are you sure this is what you would like?

Best regards,
Greg

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Originally posted by GregKramer
Hello,

The question is a bit to open ended to get many responses. First would be what size of box. Medium is different to everyone. Is it a two way or a 3 way? What do you mean by deep, understanding that deep and efficiency will be a trade off? Finally punchy usually describes a response rise in the 70Hz area, are you sure this is what you would like?

Best regards,
Greg

Greg
Thanks for guiding me. I will try to be more precise.
I would like to build speakers are three way. Have total volume of ~100liter or ~25gallons. Dimensions are around 20x120x40cm 7.8x47x15.7 inch (WxHxD)
Woofers are planned to be mounted on the side.

Regarding your comment regarding 70Hz. It a good and interesting one. I meant that I would like the speakers to sound fast and dynamic. I did not know that a peak in 70Hz sounds like that. I however prefer flat response.

[ttan98]

I am using is Usher 8945 7" woofer, it gives me very good bass. You can get the data and buy the driver from PE.

Cost per woofer is about $120.

[GregKramer]

Hello,

That is a nice size cabinet! More then most people would consider medium :-) It is very narrow for that much volume. Luckily there is an existing design that is very close to what you need.

The Dynamic 4Ts from Clearwave Loudspeakers. They use 4 Dayton RS180s. These are just over 40 each so very close to your price range. The best thing is they already have an excellent crossover that is part of the kit.
http://clearwaveloudspeaker.googlepages.com/

I am sure if you built these you would not be disappointed. I am considering them for myself!

Best of Luck,
Greg

[mcmahon48]

http://www.parts-express.com/pe/show...number=264-865
http://www.madisound.com/catalog/pro...roducts_id=842
http://www.madisound.com/catalog/pro...oducts_id=1654

or if you are brave and daring you could go my way which are similar to the above posted website
2 x http://www.madisound.com/catalog/pro...roducts_id=843

1 x http://www.parts-express.com/pe/show...number=264-555

1xhttp://www.madisound.com/catalog/product_info.php?manufacturers_id=153&products_id= 1078
or
1 x http://cgi.ebay.com/BOSE-tweeters-30...arms=72%3A1234|66%3A2|65%3A12|39%3A1|240%3A1318|301%3A0|293%3A1| 294%3A50

[mcmahon48]

mtm
m/w box vol each .25 to .28 cubic feet
plus you can have madisound design the box and the crossover
should you use
silverflutes
Vifa xt25
or
http://www.madisound.com/catalog/PDF/DQ25SC05-04.pdf
or if you want to do it youself
cross over at 3khz using a LR2
http://ccs.exl.info/calc_cr.html#second and tweak it
it will be inexpensive and very smooth with good stereo imaging

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I appropriate your time.

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Originally posted by mcmahon48
mtm
m/w box vol each .25 to .28 cubic feet

Could you please explain the above two lines?
I admit I have no clue what they mean. Sorry, I'm new at that.

Thanks

[mcmahon48]

each open back woofer speaker requires a certain size box volume to perform at its best and also with tubes port or just ports
if you look at the speaker specs for the silver flutes they got the best response with a box volume around 7 liters (.25 cubic feet +/- 5%) then you may wish to add different sound absorbing foam inside the box
you dont just throw a bunch of speakers onto a box
speakers are just like people in a choir each has their strengths and weakness, how loud, how soft, what frequencies able to reproduce, go to
each speakers has it own separate box to optimize the speaker frequency response
tweeter usually have a sealed back
High qts number usually means it will require a ported reflex bass a large box that has a tube cut to a certain length to get the most useful bass response
low qts usually is better in a sealed box design
get a book on speaker building
http://www.diyaudioandvideo.com/FAQ/XOver/
http://www.zaphaudio.com/