ATLAS COMPACT MK III

Construction

Within the large subwoofer cabinet, there is a separate chamber for the mid-bass unit. The domes are also mounted in this section, which is reinforced with a narrow strut. Three 8-mm holes will have to be drilled for the cables. The two large openings in the rear wall are for mounting the bass reflex tubes while the rectangular one is for the terminals. The crossover is mounted on the wall behind the bass vent.

Inner damping

Damping is as shown in the diagram. Two mats are pushed into the medium range cabinet. Ten mats are needed for the subwoofer chamber.

Component parts list for 1 box

Tweeter:	DSM 25 FFL 8 Ohm	1 piece
Midrange driver:	DSM 50 FFL 8 Ohm	1 piece
Bass-midrange driver:	AL 170 8 Ohm	1 piece
Woofer:	TIW 360 8 Ohm	1 piece
Crossover:	"Atlas Compact MK III"
Bass reflex tube:	BR 14.70 (length: 14,5 cm each)	2 pieces
Terminal:	BT 95/75	1 piece
Damping material:		6 bags
Special-wood screws:	5 x 30 mm	8 pieces
Wood screws:	4 x 20 mm	20 pieces
Countersunk screws:	3,5 x 25 mm	4 pieces
Cable:	2 x 2,5 mm²	2,6 m
	2 x 1,5 mm²	3,4 m
		................

Cabinet parts list for 1 box

Parts	Size (mm)	Quantity

Material: 19 mm chipboard or MDF
Top and bottom panel	381 x 322	2
Side panel	381 x 1355	2
Rear panel	1317 x 322	1
Front panel	1355 x 360	1
Brace	322 x 100	1
Brace	362 x 100	1
Midrange rear panel	455 x 322	1
Midrange bottom panel	160 x 322	1
Brace	141 x 70	1
Brace	202 x 70	1
Base	322 x 362	1

Crossover

Sketch

Characteristics and Sound

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