PHL Audio specifications 1500 8 Ω, 1510 16 Ω

1500 8 Ω	M17
	PROFESSIONAL SERIES
151016 Ω

6.5” Midrange Driver

Very High Sound Pressure Level

High Sounding Quality

APPLICATIONS

These models are an excellent alternative to types SP1040/1050 when very high SPL are needed in sound reinforcement.

Sound transcription is of utmost accuracy due to the mastery of the diaphragm behavior even at full level, which allows for their use in studio monitoring too. Direct radiation within frequency band 400Hz - 4000 Hz, in a sealed volume not exceeding 3L is possible while use with a horn loaded for high power systems is its real destination.

DESIGN CONCEPT

PROGRESSIVE WAVE DIAPHRAGM optimized for midrange frequency domain. The M17/E17 Series design is based on the PROGRESSIVE WAVE DIAPHRAGM mechanical behavior of the radiating area. In this principle, the membrane is considered as a mechanical transmission line which should receive a constant given velocity together with critical damping properties to work properly.

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

VENTED COMPACT MAGNET SYSTEM. Its 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.

FERROFLUID COOLING The FERROFLUID COOLING Proceeding consists in replacing the voice-coil air clearance in the air-gap by a stable magnetic fluid which offers far better thermal conductivity, allowing the driver to withstand an extra amount of power of short to medium duration with less risk of coil overheating than in the unferrofluid design.

Improving short term reliability, the main advantage of FERROFLUID COOLING is its thermal compression reducing effect which can reach 3dB at high power. Nevertheless, no improvement of the operating life duration is to be expected.

FEATURES

Power handling capacity 250 W AES Reference efficiency(1W @ 1m) 98 dB SPL

SPL max (continuous)	119 dB SPL
Usable frequency range	400-5000 Hz

Environmental withstanding Outdoor✚

ARCHITECTURAL SPECIFICATIONS

NOMINAL DIAMETER : 166 mm.

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

INTERCOOLER SYSTEM.

MAGNET SYSTEM : 2” highly energized, heat extracting design with vented pole piece and flux stabilizing ring.

VOICE COIL : High-temperature stabilized, FERROFLUID®-cooled copper-clad aluminum ribbon wound on vented high-strength glass polyamide former.

CONE ASSEMBLY : High-strength cellulose fiber cone impregnated and coated on both sides with damped resins, fitted with central carbon-fiber dome, high-speed flat damped surround and acoustacally damped rear cavity.

SPEAKER MASS : 2.60 Kg.