PHL Audio B38 specifications Applications, Design Concept, Features, Architectural Specifications

5010 8 Ω	B38
	PROFESSIONAL SERIES

15” Bass Midrange Driver

Ultimate Sounding Quality

APPLICATIONS

This model is intended to be used in cases where neither ultimate transcription sound nor full outdoor environmental withstanding are requested.

The main use is in the field of Studio Monitoring. Its linear pressure response up to 1kHz, together with the smooth upper roll-off are ideal for this application.

Recommended acoustical load is in a Reflex enclosure of 90L to 120L tuned from 40Hz to 43Hz, while usable freq. range is possible up to 600Hz depending only on the directivity compromise you agree on.

DESIGN CONCEPT

DEFLECTION CONTROLLED DIAPHRAGM optimized for dynamic damping. DEFLECTION CONTROLLED DIAPHRAGM technology consists in optimizing the shape and material of the diaphragm so that it works as a mechanical transmission line, to avoid breaking modes as well as mechanical threshold which destroy sound quality.

This leading edge technology offers substantial sonic advantages. Among them: sound coherency, fast transients, stable sound imaging, high sensitivity, wide frequency range and reduced directivity pattern.

VENTED COMPACT MAGNET SYSTEM It has been carefully optimized to obtain maximum transducing efficiency while avoiding unlinear behavior such as coil inductance variation with position, flux modulation, harmonic distortion, rest position offset, air compression, and off-axis voice-coil pushing.

Its design incorporates a T-shaped and vented pole piece, and a flux stabilization ring. It also takes into consideration demagnetization at cold temperatures.

INTERCOOLER SYSTEM (patented). Entirely integrated into the loudspeaker itself, the INTERCOOLER SYSTEM extracts the heat produced by Joule effect in the voice-coil by the means of an air flow directed through the heatsink rims of the basket by the motion of the dust-cap and the spider.

The gain brought about by this technology is over 20 % of extra power, so for example, a 3”coil according to this design has the same power handling capacity as a classical 4”one.

FEATURES

Power handling capacity 500 W AES Reference efficiency(1W @ 1m) 97 dB SPL

SPL max (continuous)	120 dB SPL
Usable frequency range	35-2000 Hz

Environmental withstanding Outdoor✚

ARCHITECTURAL SPECIFICATIONS

NOMINAL DIAMETER : 380 mm.

FRAME : High tensile alloy pressure die-cast basket with patented

INTERCOOLER SYSTEM.

MAGNET SYSTEM : 3” highly energized, heat extracting design with vented pole piece and flux stabilizing ring.

VOICE COIL : High-temperature stabilized copper ribbon wound on high-strength glass polyimide former.

CONE ASSEMBLY : High-strength cellulose fiber cone impregnated and coated on both sides with damped resins, fitted with central carbon-fiber dome and high compliance treated double-roll fabric surround.

SPEAKER MASS : 9.10 kg