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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

Step Two

Side View

13.5"

19.5"

13.5"

13.5-1.5+12

13.5-1.5=12

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

12"

12"

18"

Patent No: US D478,556 S

Patent No: US 6,601,645 B1

Patent No: US 6,656,000 B2

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Содержание ALPHA 400 PSW410E

Страница 1: ...Owner s Manual Alpha 400 Series Subwoofers PSW410E PSW412E ALPHASONIKR...

Страница 2: ...ity and value Our electronics feature audio phile parts and circuit topology designed to let the full musical experience come through loud and clear Our loudspeakers employ the latest high technology...

Страница 3: ...uction 3 Features and Specifications 4 Building an Enclosure 5 9 Subwoofer Parameters 10 Wiring Diagrams 11 13 Troubleshooting 14 Warning Disclaimer 15 Warranty 16 17 Notes 18 T A B L E O F C O N T E...

Страница 4: ...an Authorized Alphasonik Dealer install your new product for optimal performance and to take advantage of our warranty program Before installing your new product please read through the manual to full...

Страница 5: ...Patent Pending High Rigidity Inverted Dome Mineral Filled Composite Cone EPDM Surround for Enhanced Control at Extreme Temperatures Flat Progressive Rate Nomex Damper w Spiral Woven Leads 46 oz Double...

Страница 6: ...king projects When building a custom subwoofer box you will want to use minimal MDF medium density fiberboard TOOLS REQUIRED TO BUILD AN ENCLOSURE Safety goggles Table saw or circular saw Powered scre...

Страница 7: ...en using high power and small enclosures the woofer is not in an ideal cooling environment Less low bass as compared to a properly tuned vented enclosure above the ported tuning frequency Advantages o...

Страница 8: ...illustrated versions of all the steps that you should take FOR EXAMPLE ONLY Step One Step Three Step Two Side View 13 5 19 5 13 5 13 5 1 5 12 13 5 1 5 12 The wood that we are using is 0 75 thick The...

Страница 9: ...One Step Three Step Two Side View 15 23 13 5 23 1 5 21 5 15 1 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 thicknes...

Страница 10: ...ing 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...

Страница 11: ...iameter 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 P...

Страница 12: ...0 66 ohms 1 ohm 2 ohms Patent No US D478 556 S Patent No US 6 601 645 B1 Patent No US 6 656 000 B2 Parallel Parallel Dual 4 Ohm W I R I N G D I A G R A M S 11...

Страница 13: ...2 67 ohms 4 ohms 8 ohms Patent No US D478 556 S Patent No US 6 601 645 B1 Patent No US 6 656 000 B2 Series Parallel Dual 4 Ohm W I R I N G D I A G R A M S 12...

Страница 14: ...24 ohms 16 ohms 8 ohms Patent No US D478 556 S Patent No US 6 601 645 B1 Patent No US 6 656 000 B2 Series Series Dual 4 Ohm W I R I N G D I A G R A M S 13...

Страница 15: ...T R O U B L E S H O O T I N G 14...

Страница 16: ...fuse Using a fuse of different type or rating may result in damage to the sys tem which is not covered by the manufacturer s warranty Do not install any product where it may be subjected to excessive...

Страница 17: ...nty does not apply to any product which has been subjected to misuse neglect or accident or which has had the warranty seal broken serial number altered defaced or removed or which has been connected...

Страница 18: ...with the performance of this product during warranty or with any Alphasonik Inc authorized service center you may contact the Alphasonik Inc National Service Manager at the address listed on the back...

Страница 19: ...N O T E S 18...

Страница 20: ...ALPHASONIK INC 7050 VILLAGE DRIVE BLDG G BUENA PARK CALIFORNIA 90621 TEL 714 670 8950 FAX 714 670 8959 www alphasonikinc com...

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