Extremely high output
Incorporated digital amplifiers
Superior signal processing including Fletcher Munson implementation:
Best soundquality at every sound level
Practical 90 degrees horizontal coverage
Narrow vertical beam: Less feedback risc
Less floor- and ceiling reflections:
Soundquality is less compromized by room acoustics
Increased authority, highly improved intelligibiliy at greater distances
Much better projection compared to conventional systems particularly in difficult acoustic environments!
Superior coupling amongst two D-Top1, high sections forming a bigger line array, yielding even better long throw properties.
D-Top1 uses two extremely efficient (103dB/1w/1m) 12 inch neodymium midrange speakers in a hornloaded enclosure. Sensitivity is better than 113dB/1w/1m full space.
The horn is designed for minimum vertical beamwidth and 90' horizontal coverage, thus providing medium throw properties and yet useful and predictable horizontal coverage.
The high section consists of a planar wave line array, again giving good horizontal coverage but at the same time superior authority at greater distance. Due to the narrow vertical beamwidth, very high SPL can be achieved over much longer distances compared to conventional horns. Additionally, the vertically narrower beam will cause virtually no ceiling and floor reflections, resulting in a less noisy and much cleaner sound quality, increased intelligibility and reduced high frequency feedback risk.
Two D-Tops can be stacked or flown on top of each other, high sections together, yielding even better long throw properties. In this way, the ideal acoustic coupling boosts the SPL to 146 dB full space, with equal horizontal coverage and even better vertical beaming, and no lobing or phase funnies.
When conventional side-by-side stacking is preferred, horizontal coverage can be increased to 180 degrees. Allthough the acoustic coupling will not be perfect for the entire frequency range, this stack will yield up to 6dB gain for the low mid regions, and 3dB gain for the high frequency regions.
A state of the art switching amplifier delivers 600 watts (max) of cold power into the mid section, and 160 watts into the high section.
These amplifiers use a patented analog feedback circuitry to maintain the best possible audio quality, much better than commonly used switched amplifier designs.
Newly developed smart processing ensures safe operating conditions for all drivers.
Additionally, level dependant Fletcher Munson Compensation processing is performed to achieve best performance at all sound levels.
Why a conventionally stacked PA is far from perfect...
When stacking conventional tops together, the acoustic coupling wil only be effective for low mid frequencies, but for the higher mid and high frequency regions, differences in phase due to different path lengths will result in destructive interference. Very often this problem is addressed by using high directivity HF-horns (e.g.60x 40 degrees) to prevent the beams of adjacent tops to interfere. Therefore, the result of stacking two conventional tops together wil yield 6dB more output for the low mid frequencies, and no(!) gain for the HF-frequencies, since mostly you will be in only one horn's beam. This is the reason why stacking conventional PA tops will dramatically change the sound of your PA, and heavy EQ-ing will be necessary to compensate for this... D-Tops however will show optimal coupling for the entire frequency range, and therefore yield 6dB more output with exactly identical sound characteristics and coverage.