PHL Audio Portable Speaker B46 User Manual

B46  
8  
PROFESSIONAL SERIES  
7010  
7090  
8 Ω  
18” Bass Extended Drivers  
High Efficiency  
High Sounding Quality  
APPLICATIONS  
The ”Seventy-Ten” is one of our best sellers. It was designed for Sound  
Reinforcement applications in 1995, and fully exploits the capacity of  
our powerful 4”magnet system, which results in a successful design.  
The 7010 is a true 18” (Sd=0.128 sq.meter) while most of its competitors  
are 17”, which offers extra sensitivity that can reach 1.8 dB at the  
same displacement figure.  
This, combined with the AES Power handling of 1kW, results in  
a tremendous dynamic capacity to transduce low and very low  
sound frequencies at particularly low harmonic distortion levels  
in small volume enclosures.  
Recommended Reflex sub-cabinet is 150L to 200L tuned from 36Hz  
to 38Hz, and highest recommended X-over frequency is 400Hz.  
The SP7090 takes up the characteristics of the SP7010. Its cone is  
treated on both sides thanks to a coating process designed and  
developed in our R&D Department which enables it to withstand  
extremely severe outdoor conditions. Another advantage of such  
a treatment is the decreasing of distortion by almost 6 dB.  
FEATURES  
Power handling capacity  
Reference efficiency (1W @ 1m) 98 dB SPL  
SPL max (continuous)  
Usable frequency range  
Environmental  
1000W AES  
124 dB SPL  
30-800 Hz  
7010 / Outdoor  
7090 / Outdoor  
DESIGN CONCEPT  
withstanding  
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.  
ARCHITECTURAL SPECIFICATIONS  
NOMINAL DIAMETER : 460 mm.  
FRAME : Aluminum alloy pressure  
die-cast basket with patented  
INTERCOOLER SYSTEM.  
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.  
MAGNET SYSTEM : 4” 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.  
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.  
CONE ASSEMBLY : High-strength cellulose  
fiber cone impregnated and  
front-coated with damped resins, fitted  
with central carbon-fiber dome and  
double roll treated and damped fabric  
surround.  
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.  
SPEAKER MASS : 10.90 kg  
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