Peavey 44XT Titanium Compression Driver with Adapter, 500Hz to 20kHz Frequency Response, 8 Ohms Nominal Impedance

The Peavey Model 44XT is a large-format titanium compression driver of professional quality. The 44XT compression driver has been designed to meet the requirements set forth by LucasFilm for THx approval. The 44XT meets all THx requirements and may be used for all THx installations. The 44XT is a high performance, high power compression driver with a smoother and extended high frequency response. It consists of the newly developed Radial near phase plug (patented), one-piece titanium diaphragm and ferrofluid.

The new Radial near phase plug construction was developed for a smoother, more linear frequency response with less distortion. High frequency extension is achieved by focusing the acoustical energy of the diaphragm to a central point within the throat of the horn. Can reduce the amount of high frequency cancellations and diffraction that is present in most other phase plug designs by focusing the acoustical energy. The diaphragm is constructed of an integral one-piece titanium diaphragm/suspension assembly while the voice coil is constructed of a new high-temperature composite coil former. The one-piece titanium diaphragm reduces the amount of moving mass, increasing the high frequency response of the driver.

The 44XT incorporates the latest in ferrofluid technology. Ferrofluid is a thin, synthetic oil-based liquid holding billions of submicroscopic magnetic particles in suspension. It surrounds the voice coil for controlled heat transfer. It essentially pulls the heat away from the voice coil, transferring it into the surrounding metal of the magnet structure. This in turn reduces the amount of power compression by lowering the voice coil temperature and improves the life of the 44XT compression driver. One key characteristic of ferrofluid is its ability to dampen resonance modes within speaker systems. The dampening of resonances improves performance and sound quality.

Every 44XT compression driver is tested with a series of performance measurements, mechanical and thermal tests. This gives you the confidence needed for real-world applications. The 44XT compression driver will bolt to most horns with a 2" throat and a 4" bolt pattern. If you are relying on a horn to support the driver, it is recommended to consult a structural engineer or use one of Peavey's CH-6 or CH-7 horns. The 44XT driver is designed for easy repair. In the unlikely event of failure, simply remove three screws from the back cover, disconnect the lead wires from the diaphragm, remove all screws from the diaphragm and remove the diaphragm. Before you install the new diaphragm on the structure, the old ferrofluid will have to be removed and the gap must be cleaned.