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Frequency: 30Hz - 120 Hz

Enclosure Type: Manifold Band Pass

Size: 118x58x86.8cm

Recommended Driver: LF18G401 Spec Sheet

Plan: MN-246

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Designer: This email address is being protected from spambots. You need JavaScript enabled to view it.
 

 



tasos93's Avatar
tasos93 replied the topic: #24184 1 year 7 months ago
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
deejay skillz's Avatar
deejay skillz replied the topic: #23719 2 years 7 months ago
Any cutlist for this plan? is a 18LFG400 a good replacement for G401?
snowflake's Avatar
snowflake replied the topic: #20905 5 years 8 months ago
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.
squiggs's Avatar
squiggs replied the topic: #20316 6 years 4 weeks ago
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.
bgrade's Avatar
bgrade replied the topic: #19405 6 years 7 months ago
18. Plans say it is recomended for RCF LF18g401
www.rcf.it/products/precision-transducer...transducers/lf18g401
Simon Engquist's Avatar
Simon Engquist replied the topic: #19404 6 years 7 months ago
is this a 2* 18 or 15
suzan's Avatar
suzan replied the topic: #15944 7 years 8 months ago
there's horisontal sectionhow about vertical section
guest's Avatar
guest replied the topic: #9823 8 years 10 months ago
nice plan but l heard that when the drives are put opposite their magnetic field is affect,. espsecillay share power
vaze82's Avatar
vaze82 replied the topic: #9316 8 years 11 months ago
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.
vaze82's Avatar
vaze82 replied the topic: #9284 8 years 11 months ago
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.
guest's Avatar
guest replied the topic: #9127 9 years 2 weeks ago
What abou RCF L18P300 in this design? Would it be ok?
guest's Avatar
guest replied the topic: #8909 9 years 2 months ago
Is it possible to cut this sub in two parts? it will be after 60.8cmThx
bee's Avatar
bee replied the topic: #8237 9 years 4 months ago
+1 save up and get the correct driver.....
MAutopsy's Avatar
MAutopsy replied the topic: #8228 9 years 5 months ago
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.
gtrmech's Avatar
gtrmech replied the topic: #8224 9 years 5 months ago
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.
giveortake's Avatar
giveortake replied the topic: #7935 9 years 5 months ago

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."
gtrmech's Avatar
gtrmech replied the topic: #7879 9 years 5 months ago
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??