A South African boxing forge causes a sensation with refined enclosures and an ambitious technology. Exclusive test of the vivid Giya (32000 euro).
- Vivid audio Giya speaker
- stereoplay interview with Laurence Dickie
- Data sheet
In the early 1990s the was only moderately successful speaker manufacturer B & W made a decisive step. The British developed a real super speaker – free of all financial pressures -. The result was the extravagant (fully active) worm box, which later became the basis of all B & W Nautilus models. in 1997, B & W Nautilus speakers then launched an unprecedented success story and worldwide is the largest provider of high end speakers today undisputed. Were the key protagonists behind the ur-Nautilus project: B & W CEO Robert Trunz and developer Laurence Dickie.
This brings us finally to the vivid Giya. Because the South African noble boxes forge Managing Director is Robert Trunz, who left mid-90s B & W wonder wen when joining vivid – – Laurence Dickie appointed Chief of development.
Thus, the marching route for vivid sound transducer was clear: conventional square wooden boxes not nearly meet the requirement catalogue of Dickies. As its most powerful adversary of the good sound he had made from unwanted resonances and edge reflections already Nautilus times. To eliminate that as far as possible, British especially for the case takes considerable Chin-ups.
This the Giya is like building an airplane wing: with his sandwich fiberglass/balsa wood/glass fibre (which is bonded in aircraft construction under vacuum) the fabric at a relatively low weight is extremely stiff. Dickie moves the (inevitable) resonances of the casing walls with this setup in higher – he says “less hazardous” – frequency ranges.
In addition, the material enables every conceivable shape, so also reinterpreted snails bass casing that elegantly reminds of a clef. As in the famous ancestor, a tapered upward constantly sound management prevents standing waves in the Giya. However, and this took the lion’s share of the work on the development of housing, Dickie wanted a bass reflex support here for his two 9-inch woofer. stereoplay are endless series of measurements of his many failed attempts. But ultimately the free spirit was then but a compelling solution.
Speaking of bass: how also Manfred Diestertich audio physic swears by Dickie two opposite woofer – see interview on next page. Because of a bass works the other exactly contrary to the impulse, the basses eliminate any kind of mechanical asymmetry. Also it comes with such a construction along the way to a double bass Assembly, which in the case of Giya to impossibly high levels able. But later more.
Who drives so much cost with the housing, is in the quality of the chassis with the second-best satisfied. Even the finest Scandinavian addresses not satisfy the strict requirements of the master. Vivid has built up its own production of high -, intermediate -, and woofer. So the South Africans have the quality at any time under control. They must also, for Dickie calls, for example, by the Calotte midrange a level capability of 120 decibels. Acoustically savvy readers know: this is the sound pressure level of a starting jumbo jet… The driver itself all have membranes made of an aluminium/magnesium mix homogeneity reasons. This composite is extremely stiff (and so perfect), but due to pronounced resonances extremely demanding.
The driver sound optimally to combine and to effectively exclude just these resonances, a 4th order (24dB) crossover is here after Linkwitz/Riley used. This is regarded as the best compromise between high filter efficiency and good transient response. Because of the four lanes, the turnout of Giya is a very complex work, which was manageable only with PC computing power and latest development software.
However, despite intensive computing: so really smooth frequency response failed. The Hi range beyond 4000 Hertz is slightly too loud the bass-midrange speaker (220 to 900 Hz), slightly too quiet. But at the other measurement laboratory values To impress more: with a lower cut-off frequency of stately 32 Hertz at a maximum level of 115 (!) Decibel benchmark for high-end sound transducer, the Giya and can thus easily keep with the high level speakers from page 18. In contrast to those but South over the whole frequency range works almost completely free of distortion – respect!
Such measurement laboratory arts are reflected even? But Hello! From the start off the Giya played wonderfully loose and supple. Lizz Wright’s “Speak Your Heart” (stereoplay ultimate tunes) came up with exactly the right melting in the voice, exactly the right minor undertone. Suspicious colleagues who expected a more Harshly sound because the metal diaphragm Assembly, were quickly disabused: the Giya belongs to the rather retiring unrecognized transducers – and shows everything yet. In the flamenco Fireworks “Farrucas” by Pepe Romero (K2 version!) she put their listeners quasi in the recording – because she transported their unbridled Dynamics 1:1 in the listening room. Because she shook almost beänstigend effortlessly every boot, every flop, each strong string stopper in the original volume from its chassis – and thereby not one, who embezzled the “quiet” guitar tones present also on the recording. Because they absolutely vividly, almost the actors touchable in the room modeled.
Only the keynote in which especially deep male voices are at home, came at smaller levels slightly cloudy, the upper bass slightly too full; because it has lacked sometimes clarity and detail. With increasing volume, but this effect disappeared: the sound was clearer, more precise, remained but always pleasant.
With this trait, the Giya is a perfect partner for the “big” power amplifiers by Levinson, Krell & co. And the best in large rooms…
stereoplay: The Giya is anything other than a box box. Why the unconventional form?
Laurence Dickie: Reflections and resonance are still underestimated. This has led dramatically an example from the military area in mind: A stealth bomber extremely Well Rounded corners B1 provides only 1 percent of the radar reflection surface of an old b-52. The same is true for the acoustics: the less reflective surface has a housing, the better. That’s why the unconventional form.
stereoplay: How Nautilus is still in the Giya?
Laurence Dickie: Of course, many of my research results to the Nautilus project in the Giya find themselves. Tweeters and Midranges have unquestionably great similarities. And also the tapered housing behind the individual drivers: have minimized resonances at the time and still make it. But compared to the Nautilus, the Giya is a passive box with 13 decibels more noise reserves. Especially with the low-resonance bass system, with its two woofers plus bass reflex support, we provide a properly adult Foundation today. This was / is to realize the Nautilus only by adapting to the active crossover.
Vivid audio Giya
Technical data and test results
|Installation tip:||Free, preferably far from the corners of the room. For rooms up to 100 m2|
|Operating voltage for 90 dB SPL||3.5 V|
|Impedance minimum stp||3.0 ohm|
|Maximum volume upper value||115 dB|
|Maximum volume lower value (> 45 Hz)||115 dB|
|Lower cut-off frequency (-3dB)||32 Hz|
|Lower cut-off frequency (-6 dB)||24 Hz|
|Short conclusion||Exceptional Staggered high end speakers with Snesational cells Pregl and distortion. Sounds wonderfully balanced and very fine.|
|Sound||Absolute top class|
|Sound points (70 points)||64|
|Overall rating (max. 120 points)||very good 86|
|Price / performance||well|
|tested in output||7 / 09|