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Art. No. 5966

The ALTO I is a 2-way shelf-mounted speaker with a cabinet volume of 13 litres. Apart from the 20 mm tweeter cone, the cabinet contains a 17 cm diameter mid-bass cone.

The sound qualities of the ALTO I are "warm" but with crisp, high-range reproduction.

This kit is ideally suited to replacing the more basic speakers often supplied as standard with low-priced hi-fi systems and thus improving the overall standard of the system.

Since the bass ports are at the front, the ALTO I can be hung on the wall or placed in bookshelves, facilitating good bass response even in rooms with difficult acoustics.


Extract from Klang & Ton

"The ALTO I is a neat little bubbly speaker system, especially for pop music." "In this area, its liveliness and clarity are highly pleasing."

Value for money: very good

Technical Data
Component parts list
Additional Content
Rated power 60 W
Maximum power 100 W
Nominal impedance Z 4 Ohm
Übertragungsbereich (-10 dB) 50–22000 Hz
Mittlerer Schalldruckpegel 83 dB (1 W/1 m)
Trennfrequenz 3500 Hz
Gehäuseprinzip Bassreflex
Net volume 13 l
Außenmaß Höhe 380 mm
Außenmaß Breite 230 mm
Außenmaß Tiefe 230 mm

Component parts list for 1 box

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

DT 94 - 8 Ohm
1 pc.
Bass-midrange driver
W 170 S - 4 Ohm
1 pc.
Crossover Alto I/II (with terminal, cables and plugs)
1 pc.
Bass reflex tube
BR 6.8 (full length)
2 pcs.
Damping material
Polyester wool
1 bag
Wood screws
3.5 x 19 mm
3 pcs.
Countersunk screws
3.5 x 25 mm
9 pcs.

Frequency- and impedance response

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