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Definitive Technology SuperCube Trinity Signature Subwoofer  Print E-mail
Home Theater Loudspeakers Subwoofers
Written by Bryan Southard   
Sunday, 01 April 2007
Article Index
Definitive Technology SuperCube Trinity Signature Subwoofer 
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Introduction
There are few more challenging tasks in the sport of home theater than selecting and setting up a subwoofer in your system. What makes a subwoofer such a challenging selection is perhaps best explained by its name. The operative section of the word is “sub,” which refers to subsonic frequencies that are defined by being for the most part inaudible. Although subwoofers also handle higher audible frequencies, the meat and potatoes of a sub are better felt than heard.

The Definitive Technology SuperCube Trinity Subwoofer is an incarnation developed specifically for the Trinity Church in New York. When Definitive Technology was approached with the challenge of amplifying and accurately reproducing the church’s massive pipe organs, Definitive rose to the occasion. Providing a single bi-polar tower for each organ pipe, the Trinity Sub has been designed to become the cornerstone and low-end reinforcement of the most challenging instrument in the world to reproduce – the mighty pipe organ.

The SuperCube Trinity Subwoofer is a necessary departure from the growing trend of miniature subwoofers designed more to hide from your view than to provide uncompromised sub bass performance. Although many of the mini-cubes provide a fantastic amount of bass performance for their size, there is no arguing the benefits achieved in larger packages – and a larger package the Trinity is.

The Trinity sub is styled in typical Definitive Technology fashion, with its black fabric covering and your choice of superbly finished piano black or cherry top cap. Measuring 18 inches by 18 inches and a remarkable 31-and-three-quarters inches tall, this sub does anything but hide in a corner. With a mass weight of 175 pounds, this sub begs to be positioned and left alone. The SuperCube Trinity Subwoofer has a rated frequency response of 10Hz-200Hz. As a reference, 10Hz is most often reserved for earthquakes and late-night mortar attacks. The Trinity uses two 14-inch-long throw SuperCube drivers coupled to four infrasonic passive radiators. Behind its speaker complement is a massive 2,000-watt digitally coupled class D amplifier, with plenty of juice to spare.

Connections are typical for the SuperCube line, with a continuously adjustable low-pass crossover capable of 40Hz-150Hz via an unfiltered LFE direct-coupled input. It provides a high-pass crossover of the same frequencies and variable 180-degree phase adjustment, an essential feature for optimal set-up.

Set-up
I connected the Trinity Sub through its LFE input. Initially, I mimicked both position and settings of my reference Linn Sizmik subwoofer, which was professionally set up by renowned acoustician Bob Hodas. I set the low-pass crossover to 80Hz, the phase to 100 degrees and set the volume with my analog SPL meter to match my front loudspeakers. I then installed the spikes to keep the Trinity from vibrating across the room and reducing me to a pancake.


 

 
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