PHL Audio specifications Applications, Design Concept, Features, 1220 8 Ω, 123016 Ω

1220 8 Ω	B17
	PROFESSIONAL SERIES
123016 Ω

6.5” Bass Midrange Drivers

Ultimate Sounding Quality

APPLICATIONS

These 6.5”ultimate sounding quality Bass-Midrange drivers have been designed to match advanced studio monitoring requirements for proximity monitoring.

The exceptional sound accuracy of these units results from

a careful design using A/B listening tests to select technological solutions, which authorizes their use up to 2.5kHz without any compromise, and up to 4.0kHz with full preservation of dynamic behavior (Compromise is on directivity pattern only).

Optimum Bass-Reflex loading is situated between 12L and 16L tuned from 45Hz to 40Hz.

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.

SOFT EXCURSION LIMITING. The SOFT EXCURSION LIMITING mechanism is a special S-profile design of the rubber surround avoiding voice-coil bottoming which destroys driver functionality instantaneously.

The cone excursion is progressively limited to +/- 8mm, introducing a soft clipping which totally protects loudspeakers from over-excursion damage.

COMPACT MAGNET SYSTEM. Its design has been specially 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 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 100 W AES Reference efficiency (1W @ 1m) 93 dB SPL

SPL max (continuous)	109 dB SPL
Usable frequency range	50-4000 Hz

Environmental withstanding Outdoor✚

ARCHITECTURAL SPECIFICATIONS

NOMINAL DIAMETER : 166 mm.

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

INTERCOOLER SYSTEM.

MAGNET SYSTEM : 1.5” highly energized, heat extracting design with flux stabilizing ring.

VOICE COIL : High-temperature stabilized copper-clad aluminum ribbon wound on vented, high-strength glass polyimide.

CONE ASSEMBLY : High-strength cellulose fiber cone impregnated and coated on both sides with damped resins, fitted with central carbon-fiber dome, acoustically damped rear cavity and S-shaped, viscoelastic damped neoprene surround.

SPEAKER MASS : 2.15 Kg.