Please sombody has this project in pdf or some pics of the building???

i need to know if i got to put tubes??or i can realize it with circle hole???


i need a good project in pdf...please help me it's urgent

Daniel ETS

Hi

I'm afraid not. This design only works with the specified driver, which is a 15 inch unit.

Why not start a thread in the Sub-Bass forum, say what driver you have, and ask about sub designs for that driver.

dude need help...can i use this plan for my speaker 12inch??

GIVEorTAKE wrote: I have created an article for the plan here .

Ah yes, that looks much better. Thank you!

I have created an article for the plan here .

Many thanks for plans. Deffo nothing top end going on though. We thought it sounded like a coned driver was trying to do the top end?
Again, loved the bins smiley1

nickyburnell wrote:

jsg wrote: I'm going to re-do the tops boxes to try and fill a gap in the output iun the lower mid range - that's why I'm only posting plans for the subs at the moment, because they work fine.

Maybe the new design can allow an alternative 2" CD to be used - if it's not 2-in-1 then a separate supertweeter will need to be added, the Eminence APTs are good for that.

I was impressed with the bass end. Something missing above 8k though, was there a comp/tweet in there?

The compression driver has two diaphragms, mid and high. The high one runs 6K upwards and as far as I know that was all working properly. We were adjusting the settings quite a lot during the demos, and there may have been EQ or rolloff upstream in the source components (at one point I was using an iPod nano, not exactly audiophile kit).

jsg wrote: I'm going to re-do the tops boxes to try and fill a gap in the output iun the lower mid range - that's why I'm only posting plans for the subs at the moment, because they work fine.

Maybe the new design can allow an alternative 2" CD to be used - if it's not 2-in-1 then a separate supertweeter will need to be added, the Eminence APTs are good for that.

I was impressed with the bass end. Something missing above 8k though, was there a comp/tweet in there?

I'm going to re-do the tops boxes to try and fill a gap in the output iun the lower mid range - that's why I'm only posting plans for the subs at the moment, because they work fine.

Maybe the new design can allow an alternative 2" CD to be used - if it's not 2-in-1 then a separate supertweeter will need to be added, the Eminence APTs are good for that.

loved the size of the box and the good use of the bms driver this would defo be a good discreet design if it was not for the price of the 2/1 driver smiley1

thanks for sharing

GRS 12PF-8 12" Paper Cone Foam Surround Woofer
( 4th )

I kindly ask Marc to tell me if the paudio E18-ELF speaker goes, here are the parameters THIELE/SMALL PARAMETERS
Resonance Frequency Fs 30 Hz
DC. Resistance Re 6.0 Ω
Coil Inductance Le 1.00 mH
Mechanical Q Factor Qms 7.39
Electrical Q Factor Qes 0.47
Total Q Factor Qts 0.44
BL Product BL 21.53 Tm
Effective Moving Mass Mms 188.31 g
Equivalent Cas Air-Load Vas 263.57 Liters
Effective Piston Area Sd 0.1134 Sqm
Half-Space Efficiency Eff 1.56 %
Airgap Height Hag 8.0 mm
Voice Coil Height Hvc 23.0 mm
Voice Coil Overhang Xmax 7.5 mm

Any cutlist for this plan? is a 18LFG400 a good replacement for G401?

does the slot throat on the front of the drivers actually do anything? would have thought this design would work better if you turned the speakers round sothe faced each other and angled the baffles slightly so the central chamber flares toward the mouth.

has anyone on here tried building these? I'm considering it in the future but would like to see some build pics or at least get some verification that they work well/ are worth building first.

18. Plans say it is recomended for RCF LF18g401
www.rcf.it/products/precision-transducer...transducers/lf18g401

is this a 2* 18 or 15

there's horisontal sectionhow about vertical section

nice plan but l heard that when the drives are put opposite their magnetic field is affect,. espsecillay share power

hi, i like the USB sub design. just wanted to know if the Precision Devices 1850 driver would work on the cabinet n if it would any idea how would it sound.

hi, i like the design. just wanted to know if the Precision Devices 1850 driver would work on the cabinet n if it would any idea how would it sound.

What abou RCF L18P300 in this design? Would it be ok?

Is it possible to cut this sub in two parts? it will be after 60.8cmThx

+1 save up and get the correct driver.....

In the couple years i have been putting cabs together and experimenting i have found that you cannot stray from the driver that a bandpass or bandpass horn box is designed for.

Ok.. Would the Eminence Kilomax be a better choice? *Power handling: 1,250 watts RMS/2,500 watts max *VCdia: 4" *Le: 2.38 mH *Impedance: 8 ohms *Re: 5.84 ohms *Frequency range: 33-600 Hz *Magnet weight: 109 oz. *Fs: 33 Hz *SPL: 95.5 dB 1W/1m *Vas: 8.5 cu. ft. *Qms: 14.24 *Qes: 0.58 *Qts: 0.56 *Xmax: 9.8 mm *Dimensions: Overall Diameter: 18", Cutout Diameter: 16.56", Mounting Depth: 8.15".The XMAX spec seems to be more like the RCF driver.

gtrmech wrote: How would this design work with the Eminence Sigma Pro 18-A2 8ohm driver. Its also hard to tell from the drawing exactly how the driver opening is put together. Is it completely open and the 2 small braces go across the opening, or is the opening only between the braces??

From the designer:

"The Sigma appears a bit limited to me: Its specs while not too bad are not optimal, its Xmax of 6.1mm is not enough and is going to limit output.
Therefore I do not recommend this driver for the MN-246."

How would this design work with the Eminence Sigma Pro 18-A2 8ohm driver. Its also hard to tell from the drawing exactly how the driver opening is put together. Is it completely open and the 2 small braces go across the opening, or is the opening only between the braces??

Marc, Thank you for sharing with us your ideas.what if....we increase the length for 10-15cm?that will give us a bigger back volume -more LF output close to 40hz.and more horn length - again flatter result in 40hz region.we can tune the back chamber as BP6 to 40hz for correct driver and get nice flat, low and loud solution for inside work.Am I wrong?Sergey