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Articles Nov-Dec 2020

Effectron Reinforces Dr. APJ Abdul Kalam College Auditorium with Adamson Sound, Barco Projection and Effectron Lights and Furnishing

The 2000-seat multipurpose auditorium at the Dr. APJ Abdul Kalam Government College in Daman, in August 2020 was installed with an impressive audio architecture from Adamson..... read more

Soundframe Gives LOTD an Exclusive Harman Professional Audio System Finesse

SoundFrame recently outfitted Lord of the Drinks’ Kolkata location with a complete Harman Professional Audio System to provide exceptional audio quality and coverage for its patrons..... read more

Neumann Home Studio Academy India Edition - In Conversation with Meghdeep Bose

Meghdeep Bose is a noted arranger, composer and music producer. In this exclusive interview with PT, Meghdeep talks about his collaboration with Sennheiser and Neumann for the Indian edition..... read more

Acoustics In Auditorium Design - by Vijay Purandare

How a room sounds and feels depends heavily on the specific acoustic properties of the materials in the room. For example, the acoustics of a concert hall are designed..... read more

Acoustic and Audio System Design for Small Rooms- Part 4 - by Rahul Sarma

In Part 3 of the series, Rahul spoke about the science behind absorption and diffusion..... read more


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PreSonus Introduces CDL12P Constant-Directivity Loudspeaker




PreSonus has introduced the new CDL12P full-range, constant-directivity, powered sound-reinforcement loudspeaker that combines the best attributes of point source and line array technology to provide the flexibility demanded by modern sound-reinforcement applications. Its constant-directivity design enables it to radiate a highly focused pattern with consistent SPL throughout the frequency-response range, both on- and off-axis.

The CDL12P is portable and can be used alone, in tandem with a subwoofer, or in an array, making it a great choice for touring bands and mobile DJs, as well as for fixed installs in small and midsize venues that don’t need a networkable loudspeaker.



Each CDL12P consists of eight 2-inch drivers aligned in a segmented circular-arc high-frequency array centered in front of a 12-inch woofer. The outputs of the low-frequency driver and the high-frequency array travel on the same acoustic axis, as with a coaxial studio monitor. A low, 420 Hz crossover frequency minimizes comb filtering. Regardless of how many CDL12Ps are stacked (up to six total), users get focused sound with consistent SPL coverage both on- and off-axis. Each CDL12P delivers 120° horizontal by 15° vertical dispersion, so six enclosures rigged together form a 120° x 90° coverage pattern.

The CDL12P’s integrated 500x500W Class D power amplifier features onboard DSP presets to facilitate and simplify arrayed configurations. The integrated DSP offers a high-pass filter; a limiter; tuning for use with PreSonus CDL18s, AIR18s, and ULT18 subwoofers; and controls for the number of enclosures used. A dual-angle pole mount is provided, supporting the use of one or two enclosures when pole-mounted on a tripod stand, or atop the companion CDL18s, ULT18, or AIR18s subwoofer, allowing the system to adapt to varying audience sizes. Heavy-duty aluminum rigging with integrated pin-loaded hardware rated for a 10:1 load ensures a safe solution for flown installations.

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