A supplementary long-throw 15" paper cone bass driver gives exceptionally deep and dynamic bass performance. The 25 mm SuperTweeter with magnesium alloy dome and neodymium magnet system extends response to 61 kHz to accurately reproduce the leading edge of notes.

The Dual Concentric features a 75 mm aluminum-alloy diaphragm and Mylar surround compression driver to deliver exceptional clarity and articulation in the mid to high-frequency range. A very low ( 700 Hz ) crossover point from the Dual Concentric midrange to compression driver greatly enhances vocal quality. 

A highly efficient 96 dB/W sensitivity and 1,200 watt peak-power handling deliver breathtaking dynamics and realism. Cryogenically treated crossovers featuring ICW ClarityCap* capacitors, low loss laminated core inductors, and thick film resistors, and the crossovers are decoupled from cabinet vibrations by a three-point suspension system to deliver a more natural and cohesive sound. 
Neotech PC-OCC* internal wiring with 99.99% high purity solid silver wiring on the SuperTweeter gives excellent signal transparency.

Heavy-duty electro-plated brass NextGen WBT* bi-wireable binding posts improve signal transmission and integrity. A fifth binding post provides grounding to reduce radio frequency interference and improve midrange clarity.

Specifications

Sensitivity: 96 dB for 2.83 V at 1 m
Nominal impedance: 8 ohm
Frequency response: 24 Hz - 61 kHz ( -6 dB )

Recommended amplifier power: 20 to 600 W RMS per channel
Power rating: 300 W RMS, 1,200 W peak
Maximum SPL: 120 dB at 1 m for 300 W RMS. 126 dB at 1 m for 1,200 W peak
Total harmonic distortion: Less than 1% at 300 W RMS ( 50 Hz to 20 kHz )
Dispersion: 90 degree conical

Crossover frequencies 
120 Hz bass to Dual Concentric™ midrange
700 Hz Dual Concentric™ midrange to compression tweeter
17 kHz Dual Concentric™ tweeter to SuperTweeterTM

Crossover adjustments 
Dual Concentric™ energy /- 3.0 dB in 5 steps, 700 Hz- 17 kHz
SuperTweeter™ energy /- 3.0 dB in 5 steps, 17 kHz- 61 kHz

Crossover type
Bi-wired, hard-wired passive, low loss. All connections silver soldered. 99.9999% purity PCOCCTM wiring, except for SuperTweeter™ 99.997% purity single strand custom silver cable. Complete assembly deep cryogenically treated. Free floating isolation system. All crossover slopes 2nd order, except for SuperTweeter™ 1st order high pass

Low-frequency driver 
15" ( 380 mm ) nominal diameter with treated paper cone.
3" ( 75 mm ) diameter voice coil

Dual Concentric 
12" (300 mm) nominal diameter Dual Concentric™, with 2" ( 52 mm ) midrange voice coil and treated paper cone.
High-frequency 3" ( 75 mm ) diameter aluminum alloy dome, deep cryogenically treated

Supertweeter 
1" ( 25 mm ) diameter 64 micron magnesium alloy dome, ceramic coated. Neodymium magnet system. Plasma bonded voice coil.

Cabinet construction: Birch ply and high-density fiberboard. Extensive internal bracing
Cabinet dimensions ( H x W x D ): 50.2" x 23" x 23.6”
Enclosure volume: 5.65 cu.ft. (160 liter)
Enclosure type: Reflex for bass driver, closed box for Dual Concentric™
Weight: 265 lb ( 120 kg )