Technical data of the subwoofer: - impedance: 12 Ohm - rated SPL: n/a, since active - frequency range (-8dB): 22-200 Hz - size (HxWxD): 93.8 x 31.0 x 32.4 cm - cabinet type: dipole
Richard Lohnert used Visaton drivers throughout for his design, they are
well suited for dipoles. The full range is a Visaton
B200, the subwoofer comes with three 4
Ohm WS 25E that are connected in series.
The less deep full range (pictured right) is going to be placed on top of the subwoofer (pictured left), making sure that the higher frequencies are at ear level.
Review in K+T 2/2007:
"Positioned correctly these dipoles really get going. The B200 produces an
expressive and dynamic sound with authority and amazing three-dimensionality,
exactly like we expected the performance to be. For some the low end might
be a bit exaggerated, but we thought the sound was rather warm and pleasant,
and - as mentioned already - the high pass filter can easily be adjusted.
The dipole subwoofer was impressive, and when positioned and adjusted correctly
produced a sound like no other cabinet type. Even the lowest bass is tight
and dry and passed on without any sluggishness, displaying the "fast"
bass that makes a dipole sound so attractive. Surely, the sound doesn't reach
the ear quicker then with a standard cabinet subwoofers. But, especially compared
to bass reflex cabinets, the dipole shows an incredibly fast excursion. This
results in giving the bass more space and contour, making it easier for the
ear to absorb the musical information. In conjunction with the B200 this subwoofer
provides even more depth and power, sweeping away all reservations regarding
the reasonably priced drivers. While some might be worried about the power
handling, we, on the other hand, liked the dynamics and musicality at any
the full range driver kit (without cabinet): Order No. str-aud-bb, Price per speaker (without cabinet) EUR 251,00 excl. VAT: € 210.92 / $ 246.78
the subwoofer kit (without cabinet): Order No. str-aud-sub, Price per speaker (without cabinet) - not available
or with 3 x 8 Ohm drivers (instead of 4 Ohm), totalling 3.66 Ohm when connected in parallel (instead of 3*4 Ohm = 12 Ohm): the subwoofer kit: order No. str-aud-sub8, Price per speaker (without cabinet) EUR 132,00 excl. VAT: € 110.92 / $ 129.78
you still need one subwoofer amplifier per subwoofer (two for stereo)
for the review was used: Omnes Audio DPA 400 - which is no longer available
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