PS165F 2-way system with Flax cone

Focal

Discontinued

Your price:
€ 239,00
Price per single item (VAT included)
Type
2-way separate kit
Frequency Response
60 -28.000 Hertz
Woofer Size
165 mm
MAX Power
140 Watt
RMS Power
70 Watt
Sensitivity
91.6 dB
Impedance
4 Ohm
Woofer Material
Cono Flax
Tweeter Material
Alluminio

Focal PS165F Performance / Expert Series - 2-Way 165 mm System with exclusive Flax cone.

The membrane, critical component of the speaker, membrane technology:

The speaker is at the heart and in the tradition of Focal production. For over 30 years we have explored the various possibilities offered by innovative materials to create the ideal speaker membrane. The list is long: Polyglass, K2 sandwich, W sandwich, Kevlar, Titanium, Beryllium, Aluminum/Magnesium. The reason for this constant research comes from the awareness that the membrane is the critical interface for the speaker. Critical because it is the part of the speaker that sets air molecules in motion and the fidelity of acoustic transfer depends on the quality of the materials used.
Currently for our Home, Car and Pro productions, we use two different types of membranes for midwoofers: Polyglass for less expensive products and sandwich membranes for top series (Utopia and K2 Power).
Sandwich membranes are entirely handmade and therefore have limited use due to high costs.

The "Sandwich" technology for rigidity
The ideal membrane must satisfy 3 contradictory characteristics:
1. lightness to allow fast accelerations
2. rigidity so it functions as a piston
3. high damping to not interfere with sound


Today it is practically impossible to use a single material to make membranes capable of satisfying the three points above, while solutions that use a mix of materials instead offer broad possibilities.
In particular, sandwich construction, in which two very thin fiberglass films contain a core made of a different material, is an unbeatable technology for membrane rigidity.


The core of a "sandwich" type membrane provides mechanical damping that is responsible for the acoustic neutrality of the membrane.


What material to use for the core?
Focal patented in 1995 the membrane called "W SANDWICH" consisting of a core composed of Acrylic and plexiglass foam. Unfortunately, the type of core of the "W sandwich" membrane affects its processing, which must be done by hand. This strongly limits its use for obvious cost reasons.
Over the past three years our engineers have analyzed and tested several materials in search of one suitable to constitute the core of a sandwich membrane achievable with industrial processes rather than by hand. And they have looked especially among natural materials, less subject to the price fluctuations typical of petroleum-derived materials.


FLAX (Linen)
FLAX, given its characteristics, soon became a valid candidate and at the end of testing, analysis and comparison it turned out to be the ideal material for the core of a "popular" cost sandwich membrane. Basically we found the solution around home, as France is the world's largest producer of linen considered among
other things to be of the best quality. But there are other reasons that made us prefer it.

The unique qualities of FLAX
Composite materials have properties suitable in applications where rigidity and low specific weight are required. However, they have a serious drawback which is the lack of damping that leads to poor vibration control.
For this reason it is often necessary to add damping material for the absorption of intrinsic vibrations of the material. FLAX is twice as light as fiberglass, as the fiber has cavities. It also has very low elasticity which is ideal for increasing sandwich rigidity. Furthermore, it can be obtained in "non-woven" bundles of considerable diameters and thus produce the thickness required by the sandwich.


Flax then combines the 3 key factors required by the core of the sandwich material of speakers:

  • Low density
  • High strength
  • Excellent internal damping

Made in FRANCE

PS 165 F SPECIFICATIONS

  • Nominal power 70W
  • Maximum power 140W
  • Sensitivity (2,83V/1m) 91.6dB
  • Cone Flax
  • Surround Butyl
  • Nom. impedance 4 Ohms
  • DC resistance 3 Ohms
  • VC diameter 25mm 1"
  • VC height 13mm 5 5/16"
  • Former Kapton
  • Layers 2
  • Wire Copper
  • Inductance
  • Xmax 4mm 03/16"
  • Magnet d x h 85x30mm 31/3"x 13/16"
  • Magnet weight 900g 1.98lb
  • Flux density -
  • Gap height 5mm 03/16"
  • Net weight 1050g 37.06lb

Scheda illustrativa

20131014172958-2013flex.pdf

Scheda tecnica

20131014173910-ps165f-specification-sheet.pdf
Discontinued