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Instructions Alphasonik, Modèle ALPHA 400 PSW412E

Fabricant : Alphasonik
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*Lower power handling below the port tuning frequency. B U I L D I N G A N E N C L O S U R E 7 B U I L D I N G A N E N C L O S U R E 7 Calculating speaker enclosure volume is a five step procedure. (Make sure you do not forget to subtract the thickness of the wood that you have selected to use to build your enclosure.) Step One: Measure Height Step Two: Measure Width Step Three: Measure Depth Step Four: Height x Width x Depth Step Five: Divide the results were in step four by 1728 (12" x 12" x 12"=1728 which equals to 1.0 cu ft.) Complete formula should look like this Height x Width x Depth / 1728 =__________ Below are illustrated versions of all the steps that you should take. (FOR EXAMPLE ONLY) Step One Step Three Side View 12" 13.5" 13.5-1.5=12 Patent No: US D478,556 S Patent No: US 6,601,645 B1 Patent No: US 6,656,000 B2 19.5" 12" 18" Step Two 13.5-1.5+12 13.5" The wood that we are using is 0.75" thick The 1.5 that you see in the formula is the thickness of the wood. Calculating thickness of wood: Measure how thick the wood is then multiply by two. The reason that you are multiplying by two is each side of the enclosure. Left + Right=1.5 Top + Bottom=1.5 Front + Back=1.5 .75 x 2=1.50 18 x 12 x 12=2592 2592 / 1728=1.5 1.5 cu. ft. is the results for this enclosure Calculating speaker enclosure volume is a five step procedure. (Make sure you do not forget to subtract the thickness of the wood and port displacement that you used.) Step One: Measure Height Step Two: Measure Width Step Three: Measure Depth Step Four: Height x Width x Depth Step Five: Divide the results in step four by 1728 (12" x 12" x 12"=1728 which equals to 1.0 cu ft.) Complete formula should look like this Height x Width x Depth / 1728 =__________ Below are illustrated versions of all the steps that you should take. (FOR EXAMPLE ONLY) BUILDING AN ENCLOSURE 23" 12" 21.5" 4" 4.5" Step One Step Three Side View 13.5" 7" 15" Left + Right=1.5 Top + Bottom=1.5 Front + Back=1.5 .75 x 2=1.50 21.5 x 13.5 x 12=3483 3483 / 1728=2.01 2.01 cu. ft. is the result for this enclosure. 15-1.5=13.5 Patent No: US D478,556 S Patent No: US 6,601,645 B1 Patent No: US 6,656,000 B2 Step Two 23-1.5=21.5 13.5" The wood that we are using is 0.75" thick The 1.5 that you see in the formula is the thickness of the wood. To calculate the thickness of the wood. Formula to calculate port displacement 3.14 x Radius x Radius x Depth= ________ / 1728=port displacement 3.14 x 2.25 x 2.25 x7=111.27 sq. in. 111.27 / 1728=.06 is the displacement of the port 2.01 - 0.06=1.95 cu.ft. is the final result for this enclosure. B U I L D I N G A N E N C L O S U R E 9 B U I L D I N G A N E N C L O S U R E 9 Converting a round port to a slot port. Calculate the area of the round port(s) being used, then use the square root function of your calculator to get the interior dimensions of an equivalent suare port. The length (or depth) of the slot port will be the same as that of the round port. To calculate area: ( Area is a two dimensional measurement ) Circle =3.14 x Radius x Radius Circle Port 2" 2" 4" 4" Port 2 x 2 x 3.14=12.6 1" 12.6 x 1=12.6 Slot Port 12.6" Patent No: US D478,556 S Patent No: US 6,601,645 B1 Patent No: US 6,656,000 B2 Model #PSW410E PSW412E Fs 35 30 Qts 0.48 0.5 Qes 0.51 0.55 Qms 5.23 4.77 Vas (liters) 28 56 Vas (Cu. Ft.) 1 2 Re 3.7 x 2 3.75 x 2 Rms 400 500 Xmax +/- (mm) 9 9 Le 1.8 1.8 Sd 0.033 0.047 SPL 90 91 EBP 69 55 Mmd 115 146 Freq. Resp. 30Hz-500Hz 25Hz-500Hz Depth (mm) 139mm 152mm Depth (Inches) 5 1/2" 6" Through Hole (mm) 238mm 282mm Through Hole (Inches) 9 3/8" 11 1/8" Diameter (mm) 277mm 325mm Diameter (Inches) 10 15/16" 12 7/8" Displacement .113 Cu.Ft. .151 Cu.Ft. Minimum Sealed 0.6 0.85 Sensitivity/dB 86 87 Maximum Sealed 0.9 1.2 Sensitivity/dB 85 86 Minimum Vented 1.5 2 Internal Volume 1.3 1.77 Port Dia/Inches 4 4 Port Length/Inches 12.75 12.5 (-3dB) 34 32 Tuning Freq. 40 35 Port Displacement 0.08 0.08 Maximum Vented 2.5 3.5 Internal Volume 2.33 3.27 Port Dia/Inches 4 4 Port Length/Inches 8.75 8.5 (-3dB) 29 26 Tuning Freq. 35 30 Port Displacement 0.05 0.05 Mounting Dimensions 400 Series Vented Enclosures Sealed Enclosures S U B W O O F E R P A R A M E T E R S 10 Model #PSW410E PSW412E Fs 35 30 Qts 0.48 0.5 Qes 0.51 0.55 Qms 5.23 4.77 Vas (liters) 28 56 Vas (Cu. Ft.) 1 2 Re 3.7 x 2 3.75 x 2 Rms 400 500 Xmax +/- (mm) 9 9 Le 1.8 1.8 Sd 0.033 0.047 SPL 90 91 EBP 69 55 Mmd 115 146 Freq. Resp. 30Hz-500Hz 25Hz-500Hz Depth (mm) 139mm 152mm Depth (Inches) 5 1/2" 6" Through Hole (mm) 238mm 282mm Through Hole (Inches) 9 3/8" 11 1/8" Diameter (mm) 277mm 325mm Diameter (Inches) 10 15/16" 12 7/8" Displacement .113 Cu.Ft. .151 Cu.Ft. Minimum Sealed 0.6 0.85 Sensitivity/dB 86 87 Maximum Sealed 0.9 1.2 Sensitivity/dB 85 86 Minimum Vented 1.5 2 Internal Volume 1.3 1.77 Port Dia/Inches 4 4 Port Length/Inches 12.75 12.5 (-3dB) 34 32 Tuning Freq. 40 35 Port Displacement 0.08 0.08 Maximum Vented 2.5 3.5 Internal Volume 2.33 3.27 Port Dia/Inches 4 4 Port Length/Inches 8.75 8.5 (-3...