UpStage™ System
Test Review by "Road & Track road gear magazine" June, July 2005

UP-519XT	Quote; "The system imaged so well that I could imagine Dido standing on the dash board. The image of Dido was sharply focused and placed precisely under the rearview mirror.
	With the CDT 519XT UpStage system hooked up - all images were high (about 6-8 inches above the dash) and out front in their correct locations, not down on the floormats. I heard bright, crisp, and clean sound from sharp images on a high, deep and wide soundstage.
The sound seemed to be coming from the windshield. Image focus was realistic and convincing. Placement of of the musicians across the windshield stage was satisfying and compelling; the images were off the floor and above the dashboard, and we all agreed the CDT Audio UpStage™ system successfully raised the stage. This time, my ears, not my ankles, reaped the benefits". I was also impressed by the clarity of the sound, even at high volume. I couldn't believe how natural is sounded. In fact, I couldn't get enough! With the CDT UpStage system, the images were hovering near the sunvisors." Review the complete CDT 519XT UpStage system test report in Road & Track roadgear In-Car Audio Video June-July-2005 issue.

UP-219	UP-519XT	UP-526XT
This silk dome Tweeter is best employed as a super Tweeter. This driver excels in providing fully extended high frequency response with power and dispersion. Very airy and energetic with the smoothest power response. Power handling is excellent when used with the 219 UpStage blending module. This silk Tweeter is a touch sweeter and less critical than metal dome Tweeters. The driver is cooled by ferrofluid Neodymium magnet including surface and flush mounts.	This set use the smoothest silk Tweeter you ever heard. Always gentle and forgiving, this Tweeter emphasizes the music and avoids noise and artifacts that may embed some source material or be characteristic of less than perfect amplifiers. Perfect for use up on the dash or A-pillars. Very low listening fatigue and an easy quality that puts an emphasis on the system's midrange. The driver is a 3/4" silk dome cooled by ferrofluid Neodymium magnet including surface and flush mounts.	UP-526XT-SAT (All 3 Tweeter flavors included) Model:UP-526XT-SAT $349.99 Here's how it works: You change the Tweeter driver from silk to aluminum to titanium, what ever flavor you choose with the tool in the quick-connect patented design. No hassle with wires, this is a patented terminal (no wire) quick connect design

UP-222

This system give you the most value among all UpStage systems.© You can chose from a smooth forgiving silk dome tweeter or a very airy energetic metal dome tweeter with yet a very smooth response.These drivers excels in providing fully extended high frequency response with power and very airy and detailed image and smoothest power response. Power handling is excellent when used with the M200 UpStage blending module. This silk version is a touch sweeter and more forgiving, the metal version UP-222 give and incredible energy response at the top end. The drivers are cooled by ferrofluid Neodymium magnet including swiveling surface and flush mounts.

StageFront Technology UpStage System 500-Series was developed by StageFront audio engineers to create a superior live event listening experience in vehicles of all types.

Attending the live event: The impact of StageFront technology is immediately obvious - the voices and instruments seem to magically take shape in a seamless sound stage directly ahead above the dash. The result is to create a listening experience that is much more like the experience of attending the live event - the musicians and sound sources seem to be arrayed in front of you as if you were sitting at the live concert first row. Several psycho-acoustic effects need to be accomplished in order for this to work so well.		Listening & Impression Report Rich Truesdell Listening & Impression Report Brian Quigley About Staging & Stagefront William Burton Listening Testimonial
High frequencies to the front: The sound image is moved more towards the front of the vehicle by gradually shifting the highest frequencies exclusively to the front of the vehicle, purposely directing (cross-firing) them inward and at an angle, using the windshield as a virtual ground plane. It is unlike any conventional speaker placement philosophy, but no other system creates the imaging effect of StageFront? technology
Less "highs" from the doors: All door speakers in the system are sheped and blended to keep the existing (typically two-way) door speakers radiating nearly flat power up to carefully lowered upper cutoff frequency. These higher frequencies are typically directional and can interfere with the angular dispersion pattern created by the StageFront? super Tweeters mounted  "cross-firing" up on the dash. This careful shaping and blending process enables the dash mounted Tweeters to work transparently without creating a haze of localized reverberation in the front of the car. Unless the special StageFront? universally compatible blending filter modules are used, the added Tweeters would actually collapse the more natural and transparent frontal sound field that StageFront? creates. Our extensive listening tests support this conclusion. The effects of StageFront technology are NOT subtle.
Reflective Cross-Firing In our  "UpStage" system 500 series only the highest frequencies are handled by the cross-firing Tweeters that are mounted up on the dashor a-pillars. These Tweeters utilize the surface of the windshield to project a sound field of great clarity and transparency. Thel sound images can even appear to originate from beyond the windshield given good source material. On all source material, StageFront? technology ensures the apparent location of the sound source will not be associated with the position of the Tweeters whether virtual or actual. This is a characteristic of any good speaker when properly set up. Extra spaciousness and clarity in the sound can be achieved. StageFront? technology brings ideal "UpStage" imaging into any vehicle.
All Sound Above the Dash! StageFront "UpStage" System, remove the distracting and low image sound effects from your conventional systems drivers and move your sound onto a seamless sound stage directly ahead up above the dash.   The Upstage™ system is available as a system to transform your vehicle.  It includes a special set of frequency-control modules that can be combined with various speaker components that include Tweeters, crossover modules, and mounting hardware. The Upstage™ 500 series add-on module in the system is a specific blending band-control module to set up the "cross-firing" windshield Tweeters. This blending module also shape and filters the signals going to the door speakers to maintain non-varying controlled dispersion. On-board jumpers set up various types of door speakers. Level-matching options are also provided to set up the Tweeters and perfect frequency tuning of the door speakers. A set of these Tweeters and various mounting options completes the primary front system.
Nothing Ripped Out Or Thrown Out! One of the best things about the Upstage? system is that none of your speakers, none of your crossovers, not one part of your system whatsoever needs to be ripped out or thrown out. The UpStage? 500 system is an addition that improves and enhances what you already have. Adding those two super Tweeters (plus the addition of specially engineered shaping and blending modules you cannot see) will make you see the light... will make you see the future of more accurate, more realistic, and more exciting sound reproduction... and the future of music on the road
Now Available "UpStage System™ 500 Series
HD-62US Component system Now with Built-In UpStage system! UPStage System Tweeter Mounting Options Cobra Dash Mount Optional Surface Dash Mount Included Surface A-Pillar Mount Included Flush A-Pillar Mount Included
Images below show actual flush mount of TW19T Super Tweeter The optimum mounting position for a seamless sound stage directly ahead above the dash
UpStage™ System 500 Series Packaging