background image

4

Sealed enclosure installation

The most basic and simple of all speaker enclosures is the sealed enclosure otherwise 

referred to as an acoustic suspension design. They are called acoustic suspension 

enclosures because the air inside the box acts like a brake to control the woofer. The 

sealed enclosure is the easiest design to build and tune, as long as you work within the 

minimum and maximum recommended volumes you cannot get it wrong. The smaller 

enclosures produce a tighter punchy bass, the larger enclosures produce a deeper bass. 

Sealed enclosures offer high power handling, tight response and smooth low end roll off and 

cone motion is better controlled at all frequencies because of the constant pressure on the back 

of the woofer.

Sealed enclosures are ideally suited to rock, jazz and live music.

ENCLOSURE CONSTRUCTION

Use at least 3/4 inch MDF (medium density 

fi

 breboard) or Birch ply to construct your enclosure. It is recommend 

that the panels are glued, screwed and braced with sections of the same material you have used to build the 

enclosure from. 

The FLI UNDERGROUND woofer is capable of producing internal pressures that can literally blow apart badly 
made enclosures, so great care needs to be taken with the construction and bracing of your enclosure. It is also 
worth sealing the joints with a silicone sealer once the glue has dried to make a perfect airtight seal.

NOTE- DO NOT SCREW THE SUBWOOFER INTO THE ENCLOSURE WITHIN 24 HOURS OF APPLYING 

SILICONE SEALER TO THE JOINTS. THE GASES GIVEN OFF AS THE SILICONE CURES CAN PERISH 

THE SURROUND OF THE SUBWOOFER CAUSING A NON WARRANTY FAILURE.

PRODUCT

TIGHT BASS

DEEP BASS

FU 10

1.0 cu. ft.

1.5 cu. ft.

FU 12

1.5 cu. ft.

2.0 cu. ft.

FU 15

2.0 cu. ft.

2.5 cu. ft.

For twin enclosures simply double the volume. E.G. 2 x FLI 10 in deep bass enclosure 
will be 3.00cuft

Содержание FU10

Страница 1: ...UNDERGROUND INSTRUCTION INSTALLATION MANUAL MODEL FU10 FU12 FU15 subwoofer...

Страница 2: ...caution when working near the fuel hydraulic lines and electrical wiring Observe the correct polarity when wiring improper phasing may cause a loss of bass response Ensure that no moving parts catch...

Страница 3: ...woofer to fail after a very short period of time Installation The FLI UNDERGROUND subwoofer can be installed in a variety of different ways the most suitable will depend upon your application Free air...

Страница 4: ...CLOSURE CONSTRUCTION Use at least 3 4 inch MDF medium density fibreboard or Birch ply to construct your enclosure It is recommend that the panels are glued screwed and braced with sections of the same...

Страница 5: ...t we will use e g height and width and divide this figure by them which will give us the depth for example our height is 15 our width is 20 So our depth is 14 4 for this enclosure NOTE THIS FORMULA IS...

Страница 6: ...ubwoofer subwoofer Speaker size 10 272mm 12 324mm RMS power 250 watts 300 watts Peak power 800 watts 1000 watts Minimum input 125 watts RMS 150 watts RMS Sensitivity Frequency response 30Hz 1700Hz 25H...

Страница 7: ...graphics logos icons images data the selection and arrangement thereof are the property of FLI Audio herein referred to as FLI us or we and its affiliate or their content and technology providers and...

Страница 8: ...watts 270 watts speakers FU 4 FU 5 FU 6 FU 69 FU 5c FU 6c FU 10 FU 12 FU 15 FU 360 FU 720 FU 1000 1 FU 1000 5 FU 10P FU 10A FU 12P FU 12A FU 12TP FU 12TA up to up to 1200 watts 1200 watts up to up to...

Отзывы: