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My SMT212 CP755TI / SN12B

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wafflesomd View Drop Down
Young Croc
Young Croc


Joined: 21 September 2007
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Post Options Post Options   Thanks (0) Thanks(0)   Quote wafflesomd Quote  Post ReplyReply Direct Link To This Post Posted: 30 November 2008 at 12:35pm
I probably won't be testing these out anytime soon.

I need to invest in some fane 15" reflex 2 ways.  Those will work much better for me at the moment.  It would cost quite a bit to get drivers that will work well in these cabinets.
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Deadbeat View Drop Down
Old Croc
Old Croc


Joined: 12 March 2008
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Deadbeat Quote  Post ReplyReply Direct Link To This Post Posted: 30 November 2008 at 12:39pm
Sorry mate, we've gone a bit off topic Embarrassed
Away on extended leave.
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wafflesomd View Drop Down
Young Croc
Young Croc


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Post Options Post Options   Thanks (0) Thanks(0)   Quote wafflesomd Quote  Post ReplyReply Direct Link To This Post Posted: 30 November 2008 at 1:00pm
Not at all.  I enjoy talking about theory and doing some research.

Oh wait, this isnt my thread lol.


Edited by wafflesomd - 30 November 2008 at 1:01pm
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Deadbeat View Drop Down
Old Croc
Old Croc


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Post Options Post Options   Thanks (0) Thanks(0)   Quote Deadbeat Quote  Post ReplyReply Direct Link To This Post Posted: 30 November 2008 at 1:32pm
We hijacked a hijack LOL
Away on extended leave.
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Old Croc
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Post Options Post Options   Thanks (0) Thanks(0)   Quote login4 Quote  Post ReplyReply Direct Link To This Post Posted: 30 November 2008 at 10:37pm
LOL LOL i tell ya what lads ill try and get some sweeps etc done on mine asap and then post the results up on here,
CELTIC SUBSONIC SOUND SYSTEMS
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shello79 View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote shello79 Quote  Post ReplyReply Direct Link To This Post Posted: 08 June 2013 at 3:00am
would these work

         mccauley              M1220 Specs:

Nominal Diameter 12" / 305 mm 
Rated Impedance 8 ohms 
Power Capacity 600 Watts Program 
Sensitivity 101 dB 
Frequency Range 75 Hz - 4000 Hz (+/- 3dB) 
Highest X-Over Fq. 3500 Hz 
Recommended Enclosure Volume .5 -1.5 Cubic Feet / 14 - 42 L 
Effective Piston Diameter 10.23" / 260 mm 
Voice Coil Material Copper Clad Aluminium 
Voice Coil Winding Depth 0.45" / 11.4 mm 
Voice Coil Diameter 4" / 100 mm 
Magnetic Coil Gap 0.3" / 7.62 mm 
Magnetic Assembly Weight 19 lbs. / 8.6 kg 
Flux Density 13,800 Gauss 
Bl Factor 19.4T *m(8) 
Moving Mass .045 Kg

Theile-Small Parameters 
Fs Free Air Resonance 52 Hz 
Re D.C. Coil Resistance 5.6 (8) 
Qts Total Quality Factor 0.215 
Qms Mechanical Losses 7.25 
Qes Electrical Losses 0.222 
Vas Equivalent Volume of Air 82 L 
Sd Effective Piston Area .053 square meters 
Xmax Excursion - Max Bl 3 mm 
Vd Sd x Xmax 159 cubic cm 
Mms Effective Moving Mass .045 Kg 
Le Inductance of Voice Coil 1 mH 
%eff Mid Band Efficiency 5.1% 
Pe Max Power Rating 300 watts RMS Sine Wave

     


     i have six of these and i would like to build the smt to go on top a few mini scoops
 any help would be greatly appreciated thank you
Work hard play even harder
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nkdk View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote nkdk Quote  Post ReplyReply Direct Link To This Post Posted: 17 August 2014 at 5:19pm
Hi very nice buildSmile
I have build a pair to , with a pair kappa 12 a from eminence and a Rcf 2" driver.
Did you use   damping behind the too 12" drivers ?

nkdk
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Old Croc
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Post Options Post Options   Thanks (0) Thanks(0)   Quote login4 Quote  Post ReplyReply Direct Link To This Post Posted: 14 September 2014 at 6:55pm
Originally posted by nkdk nkdk wrote:

Hi very nice buildSmile
I have build a pair to , with a pair kappa 12 a from eminence and a Rcf 2" driver.
Did you use   damping behind the too 12" drivers ?

nkdk

hi, yes i always dampen my speakers, especially mid's Smile 
CELTIC SUBSONIC SOUND SYSTEMS
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Fracture_clinic View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Fracture_clinic Quote  Post ReplyReply Direct Link To This Post Posted: 11 March 2019 at 1:33pm
Sorry to hijack a hijacked hijack.. does anyone know the dispersion of the 12 inch section (single)?

TIA

Build thread coming soon.

Edited by Fracture_clinic - 11 March 2019 at 1:33pm
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