PL-12 Bending Wave Loudspeaker









PL-12 Specifications:

Frequency Response:  100Hz – 20kHz (+-3dB)
100Hz – 22kHz (+3dB/-10dB) SWL
• Continuous Power Rating:  350W RMS (DML), 60W RMS (Ribbon)
• Program Power / Peak Power:  700W/800W (DML), 120W/240W (Ribbon)
• Recommended Amplification:  800W @ 4 ohm (DML), 240W@ 12 ohm (Ribbon)
• Sensitivity:  98dB (DML), 103dB (ribbon) @ 1m, 2.83V
• Peak Output:  127dB
• Nominal Impedances:  2 x DML, 4 ohm, 1 x Ribbon, 12 ohm
• Horizontal Coverage:  165° (DML), 120° (Ribbon)
• Vertical Coverage:  165° (DML), 15° (Ribbon)
Dimensions: 60.8" W x 22.3" H x 2.9"D
(1545mm W x 567mm H x 74mm D)
• Weight: 98 lbs (45 Kg )

Specifications subject to change without notification.

Recommended Processor Settings

Cross-over: 100Hz, 18dB Butterworth HPF 16k
Hz, 12dB Butterworth LPF

Delay: 0.13ms
225Hz, -4dB, Q 3.79, B/W 0.38
400Hz, -2dB, Q 4.0, B/W 0.36
1.45kHz, -3dB, Q 2.73, B/W 0.525 

8.61kHz, -3dB, Q 7.63, B/W 0.18

Cross-over: 7kHz, 18dB Butterworth  HPF
- No LPF
Gain: -2dB

Cross-over: 100Hz, 18dB Butterworth LPF
Delay: Variable
EQ: 33Hz, +6dB, 2.8Q
112Hz, -3dB, 4.3Q

Download Mechanical Drawings and Specs as a .pdf.







Download PL-Series
Quick Start Guide

Front Cover 2

Download PL Series Set-up
and Mounting / Rigging Guide

Download Brochure

PL-12 Spec Sheet rev 2.0 Sm

Download Cut-sheet

Tectonic PL12 Consolidated Line Drawing_WSG_0OCT18high definition sound reinforcement speaker WITH two DMLs (DISTRIBUTED MODE LOUDSPEAKER) & ONE RIBBON (HF)




The Tectonic PL-12 Flat Panel Loudspeaker is an ideal choice for medium to large spaces where very wide coverage, high output and extended duty - cycles are required.

The PL-12 is a passive speaker system comprised of a pair of Distributed Mode Loudspeakers (DMLs) and a large format ribbon transducer / horn.

The DMLs utilize resonant mode acoustic physics to propagate very wide, diffuse audio energy into a given space. The DMLs’ diffuse output has a frequency response of ~ 100Hz to ~16kHz with no cross-over network that can introduce phase and time alignment issues or possible distortion.

The PL-12 DMLs have a horizontal and vertical coverage of 165⁰, provide a high margin of feedback resistance and generate near-zero amounts of odd-order harmonic artifacts and distortion. The net effect is superior intelligibility throughout a venue.



The PL-12 DMLs propagate a very wide and diffuse audio that interacts with boundaries, (walls, windows, floors and ceilings), in an equally diffuse manner. The PL-12 does not generate audio energy that is reflected as coherent first, second, third reflections that are perceived as out of phase, time-related reflections - so the acoustic space is essentially “erased”.

Even with such a diffuse output, the PL-12 creates a highly accurate stereo image that is also propagated throughout its very wide output. Nearly every location throughout a venue perceives a stereo image.

Complementing the PL-12’s DMLs is an integrated large-format ribbon transducer with a nominal frequency response of ~7kHz – 22kHz. A shallow horn design provides HF distribution of 120⁰ horizontal by 15⁰ vertical.


Compact Form Factor

The form factor of the PL-12 is remarkable for its performance. Measuring approximately 5 feet wide by 2 feet tall by 3 inches deep, the PL-12 can serve well as single panel stereo pairs for small venues mounted on stands, hung in small-multiples for increased vertical HF coverage or as large multiple arrays when extended vertical coverage is required.

Versatile Deployment

PL-12s can be stand-mounted or flown from their integral mounting system designed by Tectonic and engineered & certified by ATM™. PL-12s are also VESA mount compatible for floor stands, wall-mount and swing-arm applications.
(Rigging options illustrated and/or describe are optional and available at an extra cost.)

Efficient to Own and Operate

PL-12s are highly efficient; delivering more acoustic output for electrical input, A typical system for 3,000 - 5,000 seats can be powered by a pair of 110v 20A circuits. Touring and/or shipping a PL-12 system is extremely compact and affordable.

Available in custom colors

PL-12s can be ordered in a limited number of custom colors.

Matching or contrasting grill cloth is available.

Optional acoustically transparent socks are available in custom colors and /or graphics for color matching or branding. 

Tectonic PL12 Consolidated Line Drawing_WSG_0OCT18


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