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JBL Everest - Better Now, Then Never

The best speakers of the series Synthesis JBL DD66000 Everest I have suddenly found at the fair HDI Show 2008 in Moscow. I must admit, it was the only positive emotion, which I took from that place and I felt it so strong that wished to visit the same fair next year with the sole objective to hear the phenomenal sound once again. In the hall of 25 square meters, was installed a set of Synthesis Everest home theatre which consisted of multi-channel speakers, amplifiers, digital equalizer and processor www.jblsynthesis.com. Demo was presented with a series of short inserts from the well-known movies in HD format (Teminator 2, Kill Bill, Transformers, Troy ...) released over Video wall. It is not hard to figure out that the scope of my interest were frontal passive speakers DD66000.

For that JBL speakers model I have heard long ago, and my major interest was their key feature, such as compression woofers and beryllium dome tweeters, similar to those used by Pioneer TAD in best studio speakers. Ignoring the fact that some other manufacturers are using the same materials would be very stupid thing to do. Is it possible that the JBL designed the acoustics especially for home use, which is very similar to the legendary Kinoshita monitors and that are capable of producing sound that is identical to those with first class studio equipment? But that’s the way it is! The thing which is very odd is that the date of that event is year 2007, which is quite late for such a giant audio industry, such is JBL because the same type of audio heads Pioneer constructed in early 70’s.However, the difference in the sound of the beryllium heads of with these two manufacturers is minimal, so that it can be considered that JBL Everest DD66000 and Kinoshita have practically identical sound.

The specific sound of Subwoofer is characteristic for a good studio monitors and it is clear, dry, without a stretched drum and neutral. This is also case for subwoofers. Acoustics easily filled the hall with sound and without a trace of overload. If we talk more about the character of sound, we must note that this sound a little like a mid-static quality studio monitors because JBL Everest DD66000 much faster processes the dynamic peaks, and the sound also has a lot of professional cinema acoustics, just a little bit more neutral and more detailed. Of course, that is as it should be because of the appliance of the horn and the paper based high sensitive woofers.

The stronger side of JBL Everest 66000is is in the midrange frequencies, which handles 4 " compression driver whose resolution was stunning after only two seconds of listening. I could not believe how many, until then, hidden details reviled in my ears, despite the fact that in many theaters that I have visited, JBL acoustics was installed. I especially liked the sounds of sword hitting, falling shells, creaking metal, and filling weapons .So detailed high and mid tones you can never hear on any cone titanium speaker!

Despite all JBL Everest DD66000 still has few structural weaknesess:

1) It is impossible to choose, whether it is tri-band or four-band speakers, because the documentation says that the speaker is tri-band and data on crossover speak of three divisions signal points 150, 700, 20 000 Hz which is characteristic for four-band speakers.

2) Separation of signals of 150 Hz using a passive filter with batteries, with the fall of 6dB per octave between the two woofers located in the same casing is simply odd. It is clear that such a solution with pseudo mid-woofers, changes nothing and not to mention that use of passive filters at frequencies below 200-300 Hz is not recommended. Graphs of amplitude-phase characteristics are a illustration of that. The optimal solution would be parallel head integration, which would increase the depth of bass and sensitivity.

3) Why to apply speaker with a frequency of 20 kHz in the section? Why incorporate AU head that only cultivates ultrasonic signal, which is beyond the human hearing, given the fact that its operating frequency starts with the 8 kHz. For example, in a JBL K2S9800 model, frequency interface between MF and HF link is 10 kHz, which is a traditional solution due to the end of the most sensitive part of the range of humane hearing possibilities. Is it perhaps a way to attract the attention of wealthy audiophiles? But From the point o view of company like JBL is practically peculiar.

Except these few deficiencies, the impression of JBL Everest 66000 is positive! Installation of those speakers on the multi-band circuit connection and adjust DEQX processor, there is no doubt that the effect would be even greater.

In any case, we can only rejoice that, as in the home sector, there are devices that do not fall behind the best studio equipment on the market. JBL Everest DD66000 you can use in monitoring systems of the highest category instead of, maybe Kinoshita.

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