Cyburgs Needle       as in Klang+Ton 6/2005

Cyburgs Needle aus Klang+Ton 6/2005
Technical data:
with FRS8 or W3-871
- impedance: 4/8 Ohm
- nominal SPL (2.83V/1m): 85/83 dB
- frequency range (-8dB): 80-22 000 Hz
- crossover frequency: -
- size (HxWxD): 94 x 12.5 x 20 cm
- TQWT loudspeaker
Cyburgs Needle is a floorstanding TQWR speaker by Berndt Burghard (often called Cyburgs in Internet forums), that may be equipped either with:
- Visaton FRS 8, 4 Ohm or
- Tangband W3-871 (unshielded)

This speaker is designed according to the TQWT principle. Initially, the design seems to be similar to a transmission line. The TQWT duct's diameter, however, is increasing towards the outside. Furthermore, the driver is not located at the beginning of the duct, rather closer to the centre. At the end of the duct is also a bass reflex tube, i.e. there are two phase shifting elements involved: the TQWT duct, shifting the phase due to the delay and the bass reflex tube at the end, playing an important roll with regard to air mass. Therefore the name mass loaded TL or mass loaded TQWT.

If equipped with Tangband, we recommend to use a wave trap, supplied as a crossover kit, to be mounted on wood:
- 6.8 uF MKP capacitor
- 0.56 mH air core coil with 0.7 mm wire
- 6.8 Ohm MOX10 resistor (blue-grey-gold)

Our kit contains:

- the driver
- the Tangband version with crossover kit (wave trap)
- half a Pack Polyester Dämmstoff
- a circular spring loaded terminal
- 1 metre cable 2x1.5 mm2
- 4 x Pan 8 screws
- building instruction by Klang+Ton

Review in K+T 6/2005:
...We let the Visaton version without wave trap go first. At first, positioned next to the Viech it became quickly evident that the stereo triangle had sides that were clearly too long. A little put forward and somewhat closer to one another the Cyburgs displayed a well staggered stage and reproduced a more relaxed sound than the merciless Viech. However, from a certain volume onwards the Cyburg had to call it a day. But considering size the Needle showed an astonishing volume paired with excellent clarity. Moreover, this speaker was more balanced than the Viech, producing airier tops. Compared with the price for a pair of Cyburgs sound reproduction was excellent and beating anything else that may be purchased for the same amount. All in all, an ideal entry into DIY ~ a bargain, easy to build and simply fascinating.

The Tangband Needle, at first without the wave trap, followed a similar route - more pleasant the Viech, with impressive three-dimensionality, excellent attention to detail and smooth tops. With wave trap the Needle became even more balanced and was quite competitive compared to decent multiple driver speakers, provided the recordings were not too bass heavy. Compared to the FRS 8 version sound reproduction was more balanced and more subtle and, therefore, justified the higher price. Due to the identical fitting and the same cut-out diameter, the initial use of the Visaton and a later Tangband upgrade is no problem at all and the most instructive route for novices."

Visaton version with FRS 8 full range, 4 Ohm. Order No. str-needle-visa,
Price per unit (without cabinet)   EUR 16,40 excl. VAT: € 13.78 / $ 15.99

Tangband version with W3-871, with crossover kit (wave trap). Order No. str-needle-tb
Price per unit (without cabinet)   EUR 36,00 excl. VAT: € 30.25 / $ 35.09

Please note: if you want to try both, we recommend the Tangband version and the additional purchase of the Visaton full range driver:
Price per unit FRS 8, 4 Ohm EUR 11,50 excl. VAT: € 9.66 / $ 11.21

Cyburgs Needle, Medium-End Version

The medium-end version contains:
- a rectangular terminal with gold plated brass binding posts
- Spirit of HighSilver cable 2x2.5 mm2

Visaton medium-end version with FRS 8 full range, 4 Ohm, Order No. str-needle-vi-m,
Price per unit (without cabinet)   EUR 29,70 excl. VAT: € 24.96 / $ 28.95

Tangband medium-end version with W3-871S, with crossover kit (wave trap), Order No. str-needle-tb-m
Because W3-871 SC is no longer available, we deliver the kit with the unshielded W3-871.
Price per unit (without cabinet)   EUR 56,40 excl. VAT: € 47.39 / $ 54.98

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