Twentyfive aus K+T 2/2007

3 Subwoofers for the line array Twentyfive   as in Klang+Ton 2/2008

A subwoofer for the 234 cm tall line array Twentyfive (pictured left) was needed. - Three editors of Klang+Ton came up with three totally different solutions:

Subwoofer Eight (open for anything) with Omnes Audio 8.01 PC

Technical data:
- impedance: 4 Ohm
- rated SPL: n/a since active
- frequency range (-8dB): from 22 Hz
- size (HxWxD): 226.8 x 30 x 30 cm
- cabinet type: dipole
Subwofer Eight aus Klang+Ton 2/2008 The subwoofer is equipped with 8 x Omnes Audio MW 8.01 PC, consisting of two cabinets (on top of one another) with four drivers each.

As an amplifier Klang+Ton recommends a Reckhorn A-400 available from www.reckhorn.com..

But any other subwoofer amplifier capable of driving 4 Ohm speakers would also be suitable.

Excerpt from the Subwoofer Eight review in Klang+Ton 2/2008:

... "The dipole should not be placed too close to the rear wall, roughly one third of the room length behind the open cabinet should be sufficient. Differing positions, as long as they keep within reasonable bounds, can be corrected electronically. Once the sub is positioned appropriately, the listener is going to be rewarded with a typical and unique dipole bass sound. Forget about the fast and punchy bass as from conventional subwoofers - here the bass is just there, without warning, immediate and dry, coming from nowhere. There are probably quite a few people who want to experience the brute force of a horn speaker or the bang of a bass reflex - for those a dipolar subwoofer is certainly not the way to go. For all others and those who have enough space, the large dipole column Eight is highly recommendable, since here the bass doesn't do anything - it's just there."

Our kit consists of

  • 48 x PAN screws
  • 9 metres cable 2x 2.5 mm2
  • description / building instruction

the kit: order no. str-twentyfive-s8,
Price per speaker (without cabinet)   - not available

Please note: As an amplifier Klang+Ton recommends a Reckhorn A-400 available from www.reckhorn.com. Also suitable are Hypex or Detonation.

The other subwoofers:   Holger Barske: One,   Christian Gather: Twelve and Thomas Schmidt: Eight

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