ALTO III C

Art. No. 5972

Construction

The cabinet consists of boards stuck together (butt jointed), making construction a simple matter. The two boards for the closed mid-range compartment are fitted inside the cabinet before the last side panel is glued in place. Before this, an 8 mm hole has to be drilled in the rear panel of the mid-range enclosure for the connection leads. The crossover unit is mounted on the rear panel behind the upper bass cut-out.

Inner damping

The damping of the speaker uses eight mats of damping material pushed into the cabinet. To this end, the mats are folded once long ways and once crossways and pushed into the cabinet in such a way that the space behind the bass tubes remains free and the rest of the space inside the cabinet is loosely filled.

Component parts list for 1 box

The kit includes all the components listed here but not the cabinet.

Tweeter	DT 94 8 Ohm	1 pc.
Midrange driver	W 100 S 4 Ohm	1 pc.
Woofer	W 170 S 8 Ohm	2 pcs.
Crossover	Crossover Alto III c	1 pc.
Bass reflex tube	BR 15.34 (full length)	1 pc.
Terminal	ST 77	1 pc.
Damping material	Polyester wool	4 bags
Wood screws	3.5 x 19 mm	22 pcs.
Cable	2 x 1.5 mm²	3.5 m

Cabinet parts list for 1 box

Parts	Size (mm)	Quantity
Material: 19 mm chipboard or MDF
Top and bottom panel	192 x 262	2
Side panel	262 x 1000	2
Front and rear panel	230 x 1000	2
Midrange rear panel	192 x 250	1
Midrange bottom panel	192 x 70	1

Crossover

Sketch

Characteristics and Sound

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