Wednesday 29 February 2012

XTZ 99.36 mk II Hi-End Speaker

XTZ 99.36 MKII is a floor speaker in the 99-series, equipped with SEAS Excel High End drivers, providing an absolutely clean and transparent sound. 60 years of experience supports this driver.
99.36 MKII also features a ribbon tweeter to ensure a superior transient response and very flat frequency response. The new MKII crossover filter offers even flatter frequency response, improved phase linearity and impuls response.

For the 99.36,  we carefully selected the components. The goal was to offer a speaker without compromising, and with a finish normally not found in this price range.
 •SEAS Excel element
•Ribbon tweeter with extreme performance
•Room-Tuning
•Heavy MDF
•Selectable bass reflex or sealed construction 
•Adjustable bass level in four steps
•Adjustable tweeter level in four steps
•Connection terminal for tri-amping

Goals
When the XTZ 99.36 MKII was constructed the resulting quality of the loudspeaker had a greater importance than the cost. Still we claim that with the right skills and production volume, it is possible to obtain true High End quality without ending up with a price so high that only a few people can afford it.


Technical presentation
The 99.36 MKII is a three way construction with internal crossover filter.

The cabinet is built using a narrow front - not only an aestetically neat shape, but also an advantage from an acoustic point of view as it provides a stable construction to keep resonances to a minimum.

The midrange and woofers use separate chambers. This way, we have been able to optimize the chamber volumes for the midrange and bass drivers. Also, the midrange driver can operate without any interference from the woofer.

The new design with its elliptical cabinet shape offer a natural stability. It´s further reinforced with internal bars to effectively suppress resonances and provide a robust construction.

Tweeter
We selected a ribbon tweeter with superior transient response and a very flat frequency response. Ribbon tweeters are frequently used in high end speakers.
The ribbon cone is super light and only 18 microns thin. It is a rosin-aluminium-rosin sandwich construction that has been hardened at 320 degrees celsius.
The magnet system is a two row highly efficient neodynium construction in a moulded chassis of ceramical carbon steel.
Fishbone shaped contactors in aluminium provide a low connection resistance and good heat dissipation.
The driver has a high power capacity and handles frequencies up to 40000 Hz which makes it DVD-Audio and SACD-ready.

Woofer/Midrange driver
After evaluating a large number of drivers from different manufacturers we selected one from Seas, a company that has a solid reputation in the area of high quality speaker drivers. You can find Seas drivers in many High End speakers, even with 6 figure price tags. With 60 years of experience, they have cutting edge knowledge that puts most of the competition behind.

For the woofer/midrange we decided on a 6,5" magnesium driver from the Seas Excel series that have extreme performance. We claim that finding a better 6,5" driver on the market is a very difficult task.
The surface treated magnesium cone is extremely light but still extremely stiff and effectively reduces resonances.
The rubber surrounding makes sure that no edge resonances are present.
The moulded metal basket is a "high flow" type that is acoustically transparent and has high precision since the basket is shaped exactly due to the moulding process. This makes sure that the basket is very stable and efficiently reduces resonances. The basket is absolutely non-magnetic, which contributes to a higher efficiency of the driver.
A strong magnet combined with the light cone ensures high efficiency and a good transient response.
Heavy copper rings mounted above and below the T-shaped pole piece reduce non linear and modulation distortion and increase the overload margin.
The copper plating of the top and bottom plates along with a solid copper phase plug improves the heat conduction and thus contributes to the high power durability.
Goldplated terminals reduce contact resistance and serve as anti-corrosion.
Large windows in the basket both above and below the spider reduces sound reflections, air flow noise and cavity resonances.


Woofer driver
The bass driver is also a Seas unit, but a classic coated paper type, well known for its performance at a very good price/performance ratio. The coated paper membrane is very light, yet rigid with a minimum of resonances and a controlled roll off.

The rubber suspension ensures that edge resonances are suppressed. The cast basket is a high flow type with very good precision. The construction is very stable and completely non magnetic to obtain high effiency. A powerful magnet paired with the light cone provides good transient response.

Crossover
The crossover is a 2 1/2 way Linkwitz/Riley type, with 12 dB/oct slope for the midrange and tweeter. This offers a minimum of phase shiftings and good transient response. For the woofer, we opted for a 24 dB/oct section. The filter uses MOX resistors, air wound coils and high quality capacitors.
There are tuning options included to enable you to adjust the tweeter/bass level to match your listening room and preferences.

Binding post
The tri-wiring connectors are goldplated and you can connect to the amplifier with double cables (bi-wiring), or connect to two amplifiers (bi-amping) for further improving the sound. This would need active filters.

Room Tuning - Mechanical boundare frequency control
By using the supplied bass reflex plugs, it is possible to mechanically alter the lower boundary frequency on XTZ 99.36 MKII.
This makes it possible to drastically alter the sound character of the speaker. You can choose from eight different sound shapes in the bass range by using the bass plugs.

Sealed or bass reflex
With the plugs inserted the speaker operates as a sealed construction.








Technical Specifications::
Construction type
2 1/2-way with separates boxes for woofer and woofer/midrange
Bass reflex cabinet that may be set as a closed box, a total of eight distinct bass modes (Room Tuning).
The trebble and bass level are adjustable in four different levels each.

Dimensions:
244 x 910 x 352 mm (Width x Height x Depth)
Rubber spikes +20mm

Weight: 19,5 kg/pc
Magnetically shielded: No
Impedance: 4-8 ohm
Binding post: Goldplated bi-wiring / Banana plug / Pole screw

Efficiency: 90dB

Power
* 550 W Short term IEC 268-5
* 200 W Short term IEC 268-5

Tweeter
Ribbon tweeter, SACD/DVD-Audio-ready, Sandvich ribbon cone in aluminium, neodymium magnets, chassis made in ceramic carbon steel.

Woofer / midrange
6,5" SEAS Excel, Magnesium driver, moulded "high flow" driver basket, powerful magnet,weight 1900 gram, shielded.

Woofer
6,5 "SEAS , coated paper driver, moulded high flow driver basket, powerful magnet,weight 1900gram.

Connections and settings
* Goldplated biwiring.
* Bassreflex, can be set to closed box (Room Tuning).
* The bass can be set to eight distinct modes using the supplied bass plugs
* The trebble level is adjustable in 4 different modes.
* The bass level is adjustable in 2 different modes.

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