Why the SR1530 is one of the most accurate SR sound system ever?

1. It's a three-way system (see above).
2. It has a unique wide-dispersion horn design.
3. It uses custom transducers specially designed for this system.
4. It's an active design with electronic equalization, time correction and phase alignment.
5. It's tri-amplified.

Since we beat Reason 1 to death in the paragraphs above, we'll go on to Reason 2, the first horn system that truly "marries" mids and highs.

Optimized Wavefront Horn for flat response and wide dispersion.

Generating accurate high and midrange frequencies is only part of the story. They must be delivered to your audience…in the right amounts and in the same place at the same time.

In order to make sure that midrange output "keeps up" with the HF horn, we made the SR1530 the first speaker in its class to feature a horn-loaded mid-frequency transducer. To smoothly integrate them, we designed a one piece, 90° x 40° Optimized Wavefront horn that includes both the mid and high frequency transducers. That's one reason all frequencies above 700Hz are evenly dispersed in the same wide pattern - and everybody in your audience hears the same thing.

The other reason is the asymmetrical shape of the SR1530's Optimized Wavefront horn system.

In traditional passive 3-way systems, the horns' vertical cross sections are symmetrical (Drawing C).

Since they face straight outward, mid and high frequency horns physically point to different locations in the audience (Drawing D). The two frequency ranges don't mix properly: If you sit in the back you get more treble; if you sit in the front, you get more midrange.

The high frequency section of the SR1530's Optimized Wavefront horn design is asymmetrical with 10° of angle upward and 30° of angle downward (Drawing E). That positions the high frequency section to fire down into the six-inch mid-range's dispersion pattern.

This creates a focused, single wavefront with excellent phase and power response characteristics (Drawing F). In non-tech-ese, that means your audience hears balanced amounts of mid and high frequences - and you sound better.