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The VIB EXTRA GF is a 3-way combination in a slim-line, column-like vented cabinet. The design of this cabinet means that a large cabinetvolume (90 litres net) is achieved with relatively little loss of floor space. The woofer is mounted at the top in order to avoid annoying reflections from the floor and sympathetic resonance from the room. The narrow baffle and the asymmetric arrangement of the speaker drivers to one side generate excellent omnidirectional distribution characteristics. The result is good spatial sound output that is to a large extent independent of the listener's seating position. The crossover unit, designed especially for this choice of drivers and this cabinet, separates off the GF 250 2 x 4 Ohmfibre glass woofer at 800 Hz. The titanium mid-range dome speaker is active up to 6 KHz. From here, the DSM 25 FFL 8 Ohm tweeter takes over. The first thing you will notice about the sound produced by the VIB EXTRA GF is the remarkable band-width coverage. The lowest frequencies (20 - 30 Hz) that are not perceived as sound at all but as pressure on the body and ears come across just as readily through the VIB EXTRA GF. This bass reproduction is clear-cut and with good signal fidelity, but makes a smooth impression on the listener, not the gritty sort of bass you would get from musician's PA systems.
In "normal" sized rooms, an incredibly high level of bass is produced in the low frequency range, but not as disco-type bass, which generates most power between 80 and 100 Hz. In other words, the VIB EXTRA GFis precisely what you are looking for if you appreciate real low-range bass but without the boom. If this is still too high, it is possible to adjust certain sections of the port to match it to the room, under certain circumstances.

Technical Data
Component parts list
Additional Content
Rated power 150 W
Maximum power 200 W
Nominal impedance Z 8 Ohm
Übertragungsbereich (-10 dB) 30 - 30000 Hz
Mittlerer Schalldruckpegel 88 dB (1 W / 1 m)
Trennfrequenz 800 / 6000 Hz
Gehäuseprinzip Bassreflex
Net volume 90 l
Außenmaß Höhe 1220 mm
Außenmaß Breite 300 mm
Außenmaß Tiefe 340 mm

Component parts list for 1 box

DSM 25 FFL 8 Ohm
1 piece
Midrange driver:
DSM 50 FFL 8 Ohm
1 piece
GF 250 2 x 4 Ohm
1 piece
"VIB Extra GF"
Level control:
LC 57 H
1 piece
LC 57 M
1 piece
Bass reflex tube:
BR 14.70 (length 14,5 cm)
1 piece
ST 77
1 piece
Damping material
5 bags
Special wood screws:
5 x 30 mm
6 pieces
Wood screws:
3,5 x 19 mm
12 pieces
Countersunk screws:
3,5 x 25 mm
4 pieces
2 x 1,5 mm2
4 m

Frequency- and impedance response

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