longdrive03 Posted September 10, 2016 Author Share Posted September 10, 2016 It isn't the 15C but the numbers on it are 11-15 -04 Here are the specs I measured. Buffer[1] Vas Ver 7.01 Completed: Sun Nov 09 21:57:31 2014 Drive level 69.504% [2.465 mA] Sine,LoZP(LV/LA)->Vas,21 pts ;------------------------------------------------------------------ Re = 4.9895 ohms Fs = 30.0773 Hz Zmax = 114.3375 ohms Qes = 0.3160 Qms = 6.9247 Qts = 0.3022 Le = 3.6119 mH (at 1 kHz) Diam = 336.5500 mm ( 13.2500 in ) Sd = 88958.8296 mm^2(137.8865 in^2) Vas = 289.3886 L ( 10.2197 ft^3) BL = 18.0167 N/A Mms = 108.7740 g Cms = 257.4179 uM/N Kms = 3884.7336 N/M Rms = 2.9685 R mechanical Efficiency = 2.3415 % Sensitivity= 95.7130 dB @1W/1m Sensitivity= 97.7634 dB @2.83Vrms/1m Krm = 8.289E-03 ohms Freq dependent resistance Erm = 808.551E-03 Rem=Krm*(2*pi*f)^Erm Kxm = 63.176E-03 Henries Freq dependent reactance Exm = 677.122E-03 Xem=Kxm*(2*pi*f)^Exm ;------------------------------------------------------------------ Ftest = 21.975 Hz Ftest/Fms = 0.7306 Test Mass used = 95.0000 g (Equal to 19.0 nickels) Test Mass (Ft=Fms*0.90) = 25.515 g (Add -69.485g for Ft=27.070) Test Mass (Ft=Fms*0.75) = 84.602 g (Add -10.398g for Ft=22.558) Quote Link to comment Share on other sites More sharing options...
Honeybadger Posted September 10, 2016 Share Posted September 10, 2016 That looks like it might work ok, however I expect the output to be a few db lower than the k33. If you are using an adjustable crossover or active unit you can pad the hf down to match. Never hurts to give them a shot. Quote Link to comment Share on other sites More sharing options...
longdrive03 Posted September 19, 2016 Author Share Posted September 19, 2016 It isn't the 15C but the numbers on it are 11-15 -04 Here are the specs I measured. Buffer[1] Vas Ver 7.01 Completed: Sun Nov 09 21:57:31 2014 Drive level 69.504% [2.465 mA] Sine,LoZP(LV/LA)->Vas,21 pts ;------------------------------------------------------------------ Re = 4.9895 ohms Fs = 30.0773 Hz Zmax = 114.3375 ohms Qes = 0.3160 Qms = 6.9247 Qts = 0.3022 Le = 3.6119 mH (at 1 kHz) Diam = 336.5500 mm ( 13.2500 in ) Sd = 88958.8296 mm^2(137.8865 in^2) Vas = 289.3886 L ( 10.2197 ft^3) BL = 18.0167 N/A Mms = 108.7740 g Cms = 257.4179 uM/N Kms = 3884.7336 N/M Rms = 2.9685 R mechanical Efficiency = 2.3415 % Sensitivity= 95.7130 dB @1W/1m Sensitivity= 97.7634 dB @2.83Vrms/1m Krm = 8.289E-03 ohms Freq dependent resistance Erm = 808.551E-03 Rem=Krm*(2*pi*f)^Erm Kxm = 63.176E-03 Henries Freq dependent reactance Exm = 677.122E-03 Xem=Kxm*(2*pi*f)^Exm ;------------------------------------------------------------------ Ftest = 21.975 Hz Ftest/Fms = 0.7306 Test Mass used = 95.0000 g (Equal to 19.0 nickels) Test Mass (Ft=Fms*0.90) = 25.515 g (Add -69.485g for Ft=27.070) Test Mass (Ft=Fms*0.75) = 84.602 g (Add -10.398g for Ft=22.558) Quote Link to comment Share on other sites More sharing options...
longdrive03 Posted September 19, 2016 Author Share Posted September 19, 2016 Update. Got the bass bin put together and veneering now. Pics show the front before the veneer was attached to the sides and top which are now still clamping. Should unclamp tonight. One picture is the back which I veneered as well. I have all the parts cut out for the second bin and should start that later in the week. Can't wait to hear some sound with the K33 and EV SM120A horn and different drivers! 1 Quote Link to comment Share on other sites More sharing options...
longdrive03 Posted September 20, 2016 Author Share Posted September 20, 2016 UpdIt isn't the 15C but the numbers on it are 11-15 -04 Here are the specs I measured. Buffer[1] Vas Ver 7.01 Completed: Sun Nov 09 21:57:31 2014 Drive level 69.504% [2.465 mA] Sine,LoZP(LV/LA)->Vas,21 pts ;------------------------------------------------------------------ Re = 4.9895 ohms Fs = 30.0773 Hz Zmax = 114.3375 ohms Qes = 0.3160 Qms = 6.9247 Qts = 0.3022 Le = 3.6119 mH (at 1 kHz) Diam = 336.5500 mm ( 13.2500 in ) Sd = 88958.8296 mm^2(137.8865 in^2) Vas = 289.3886 L ( 10.2197 ft^3) BL = 18.0167 N/A Mms = 108.7740 g Cms = 257.4179 uM/N Kms = 3884.7336 N/M Rms = 2.9685 R mechanical Efficiency = 2.3415 % Sensitivity= 95.7130 dB @1W/1m Sensitivity= 97.7634 dB @2.83Vrms/1m Krm = 8.289E-03 ohms Freq dependent resistance Erm = 808.551E-03 Rem=Krm*(2*pi*f)^Erm Kxm = 63.176E-03 Henries Freq dependent reactance Exm = 677.122E-03 Xem=Kxm*(2*pi*f)^Exm ;------------------------------------------------------------------ Ftest = 21.975 Hz Ftest/Fms = 0.7306 Test Mass used = 95.0000 g (Equal to 19.0 nickels) Test Mass (Ft=Fms*0.90) = 25.515 g (Add -69.485g for Ft=27.070) Test Mass (Ft=Fms*0.75) = 84.602 g (Add -10.398g for Ft=22.558) Quote Link to comment Share on other sites More sharing options...
longdrive03 Posted September 20, 2016 Author Share Posted September 20, 2016 Update. Took off the clamps, trimmed the veneer and hand sanded lightly last night. Sprayed a little alcohol on cabinets to show the grain/color. Next step is front edge trimming with solid cherry then some finishing and listening. Quote Link to comment Share on other sites More sharing options...
avguytx Posted September 20, 2016 Share Posted September 20, 2016 Looks awesome, man! I'm still hoping one day to actually get started on mine. Quote Link to comment Share on other sites More sharing options...
longdrive03 Posted September 20, 2016 Author Share Posted September 20, 2016 UpdIt isn't the 15C but the numbers on it are 11-15 -04 Here are the specs I measured. Buffer[1] Vas Ver 7.01 Completed: Sun Nov 09 21:57:31 2014 Drive level 69.504% [2.465 mA] Sine,LoZP(LV/LA)->Vas,21 pts ;------------------------------------------------------------------ Re = 4.9895 ohms Fs = 30.0773 Hz Zmax = 114.3375 ohms Qes = 0.3160 Qms = 6.9247 Qts = 0.3022 Le = 3.6119 mH (at 1 kHz) Diam = 336.5500 mm ( 13.2500 in ) Sd = 88958.8296 mm^2(137.8865 in^2) Vas = 289.3886 L ( 10.2197 ft^3) BL = 18.0167 N/A Mms = 108.7740 g Cms = 257.4179 uM/N Kms = 3884.7336 N/M Rms = 2.9685 R mechanical Efficiency = 2.3415 % Sensitivity= 95.7130 dB @1W/1m Sensitivity= 97.7634 dB @2.83Vrms/1m Krm = 8.289E-03 ohms Freq dependent resistance Erm = 808.551E-03 Rem=Krm*(2*pi*f)^Erm Kxm = 63.176E-03 Henries Freq dependent reactance Exm = 677.122E-03 Xem=Kxm*(2*pi*f)^Exm ;------------------------------------------------------------------ Ftest = 21.975 Hz Ftest/Fms = 0.7306 Test Mass used = 95.0000 g (Equal to 19.0 nickels) Test Mass (Ft=Fms*0.90) = 25.515 g (Add -69.485g for Ft=27.070) Test Mass (Ft=Fms*0.75) = 84.602 g (Add -10.398g for Ft=22.558) Quote Link to comment Share on other sites More sharing options...
longdrive03 Posted September 20, 2016 Author Share Posted September 20, 2016 AVGUY, this is one of the very satisfying but sometimes pain in the butt builds. I think the second cabinet will be much easier not that I have figured out the construction order. Big tip is to cut all the parts that share a common dimension at the same time. I've got 3/4" mdf and plywood along with the 1.25" plywood sides so the front edge trimming with solid cherry will be a little different. I'm thinking I'll go with the Kappa 15C woofer and see how those sound with the EV SM120A horns and yet to be decided upon driver (not sure if I'll settle on two or three way). Do you have to components for the build? Quote Link to comment Share on other sites More sharing options...
longdrive03 Posted September 20, 2016 Author Share Posted September 20, 2016 Here is a pic of the front. Quote Link to comment Share on other sites More sharing options...
longdrive03 Posted September 26, 2016 Author Share Posted September 26, 2016 Update. Got one bass bin built and installed the Eminence 15" woofer which is physically impressive. Here are the WT2 test results and a pic of the woofer on the left next to the K-33. This is a cast frame monster with a 3" vc and huge spider. Sounds good right now sitting on my portable work bench. Tonight I'll connect the EV ND6X driver to the EV SM120A horn and a temporary crossover to see how it sounds. I'll post cabinet pics below. 15 INCH EMINENCE SAMPLE WOOFER 1.docx Quote Link to comment Share on other sites More sharing options...
longdrive03 Posted September 26, 2016 Author Share Posted September 26, 2016 Right now I'm running the woofer wire out the bottom since I might do the DJK ported base arrangement. Quote Link to comment Share on other sites More sharing options...
zobsky Posted September 26, 2016 Share Posted September 26, 2016 1 hour ago, longdrive03 said: Right now I'm running the woofer wire out the bottom since I might do the DJK ported base arrangement. For what it's worth, here are comparative measurements I took last weekend for a stock vs ported belle bass bin with eminence kappa 15c Subjectively, I can't hear much of a difference. The sound is a bit more solid but it's not night and day I'm not sure what the deal is with the dip at 50 Hz. It's either a room mode or the port is working way below where the horn gives up, .. leading to a discontinuity. I tried all manner of EQ and boost etc but really , the addition of ports doesn't give this speaker "wings" OTOH, the fact that the port cuts down on the 150 Hz peak does help somewhat, IMO . I used two 4.5" DIA ports of length 6" each. Not exactly the specified recipe but close enough. I could always lengthen the ports (these are parts express telescoping ports). If anything, I would think that SHORTENING the ports might move the resonance up to meet with the horn rolloff t Quote Link to comment Share on other sites More sharing options...
longdrive03 Posted September 26, 2016 Author Share Posted September 26, 2016 Thanks Zobsky. For now I'm just going to listen and then might venture on the ported riser. Looks like it adds about 5db on the 31 to 45 hz portion. Quote Link to comment Share on other sites More sharing options...
longdrive03 Posted September 26, 2016 Author Share Posted September 26, 2016 After two thin coats of wipe on poly satin. Another coat tonight. 1 Quote Link to comment Share on other sites More sharing options...
Honeybadger Posted September 27, 2016 Share Posted September 27, 2016 Lovely, very nice veneering. HB Quote Link to comment Share on other sites More sharing options...
zobsky Posted September 27, 2016 Share Posted September 27, 2016 1 hour ago, Honeybadger said: Lovely, very nice veneering. HB Sorry if I missed it, but what method did you use in veneering (heat lock glue or contact cement). I used contact cement for my project and it's very unforgiving to application errors. Quote Link to comment Share on other sites More sharing options...
richieb Posted September 27, 2016 Share Posted September 27, 2016 So when are you taking orders? Impressive work -- Quote Link to comment Share on other sites More sharing options...
karlson3 Posted September 27, 2016 Share Posted September 27, 2016 longdrive03 - your assembly and veneer are world class beautiful ! Zobsky - that's a real nice graph - the dip has to be the room pulling on the curve. Bifurcated horns with their symmetry are prettier (with wood - not FH!) than single mouth variety , and the Belle with its proportions and flat section between the mouths, even nicer perhaps than a nice La Scala. The omission of mouth braces is the aesthetic icing on the cake, Quote Link to comment Share on other sites More sharing options...
longdrive03 Posted September 27, 2016 Author Share Posted September 27, 2016 Guys, thanks for the compliments. Zobsky, I'm using the heatlock glue iron on method with edge clamping overnight. The veneer I'm using is aircraft grade veneer and almost 1/16" thick with wood backing. The side panels are 1 3/8" (1/8" for the inner and outer veneer panels. I haven't used contact cement because we know when it touches it is stuck. However, you probably get a better bond and probably don't need to clamp. Rich, I could be persuaded!! These don't have a home yet. I hooked up the horn and ND6X driver last night crossed at 500hz and was impressed. These things are too heavy to put on the floor right now. Had them on my mobile workbench 3 feet off the concrete floor. Still good solid bass. Here are some pics. The ND6X is impressive. First time I've heard one. Quote Link to comment Share on other sites More sharing options...
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