Products Pro Sound Loudspeakers
Eighteen Sound is a leading designer and manufacturer of high quality professional audio loudspeakers, with the most advanced development and manufacturing technologies in the world, located in Reggio Emilia, Italy.
The Eighteen Sound R & D and Engineering Teams’ unparalleled experience in professional transducer design is manifest in the exceptional products created at the home offices and manufacturing center.
Repeatability and fulfillment of Design in every Production unit, is our goal and our daily responsibility. To achieve this mission, each Production Line is equipped with proprietary robotic equipment that precisely performs the most demanding tasks such as applying adhesives in exacting amounts and accurately moving and tempering parts and components, while highly skilled assembly technicians handle the essential human interface segments that define the perfect collaboration in assembly, that is the hallmark of Eighteen Sound products.
Quality Control is instituted at every stage of the manufacturing process, whether by automation and software, or close visual and tactile review. In the first stage of manufacturing, the raw materials are sourced only from providers with impeccable credential and documentation. Throughout the production process, each stage is equipped with automation and QC workstations to ensure accuracy, and validation of test criteria and design.
The fulfillment of our Customers’ needs is fundamental in Eighteen Sound’s philosophy. Eighteen Sound’s Research & Development Department cooperates daily with top Pro Audio O.E.M. customers. The recognition of their needs, as well as an open-minded approach to the customer, helps us to identify even the most demanding professional audio market requirements. We believe that this philosophy allows Eighteen Sound’s products to always satisfy the most rigorous and challenging expectations in audio reproduction.
TECHNOLOGIES
TTC: Tetracoil Double Voice Coil (TTC) technology is based on an innovative magnetic structure where two different inside-outside voice coils are wound on the same former and suspended evenly in the two magnetic gaps.
The key advantages are:
1) Ideal motor symmetry over large displacement providing flat inductance and minimal even-order distortion.
2) Excellent thermal dissipation and reduction of thermal distortion resulting from: (a) twice the voice coil surface area of a standard single voice coil of the same diameter and, (b) reduced power compression for up to 50% more output at high power.
ISV: Interleaved Sandwich Voice coil (ISV) technology is based on a high strength fiberglass former where half of the coil is wound on the outside and the other half is wound on the inside. As a final result a balanced, linear motor unit is achieved. High force factor and improved heat dissipation are further advantages of the ISV technology.
EWAL: Edge Wound Aluminum Voice coil (EWAL) technology identifies models where this specific kind of wire is used in the voice coil winding.
AIC: Active Impedance Control (AIC) technology utilizes a secondary voice coil permanently fixed on the pole piece of the magnetic structure. The magnetic field generated by this secondary coil provides induction reduction for a flat impedance curve that increases sensitivity and extends high frequency bandwidth, while reducing harmonic and inter-modulation distortion.
DSS: The Double Silicon Spider (TSS) technology was developed by Eighteen Sound in 1998 and consists of a double layer spider structure, glued by a special silicone based adhesive mix. The result is an ultra-linear piston action and full suspension control across the entire working range.
TSS: The Triple Silicon Spider (TSS) technology is an evolution of the DSS technology. It consists of a triple layer spider structure, glued with a special silicone based adhesive mix. This suspension type is able to control the moving mass with high linearity, demonstrating an exceptional stability of mechanical parameter values in the long term.
SDR: Single Demodulating Ring (SDR) technology identifies the usage of an aluminum ring placed into the magnetic structure for reducing intermodulation distortion, while improving the transient response.
DDR: Double Demodulating Rings (DDR) identifies the presence of two aluminum rings embedded in the pole piece of the magnetic structure. These rings have been designed to dramatically reduce the intermodulation and harmonic distortion while improving the transient response of the transducer.
ACS: Active Cooling System (ACS) technology is related to different ways of extracting heat from the transducer motor in order to minimize power compression and increase power handling.
TPM: The True Piston Motion (TPM) technology is based on an exclusive titanium nitride coating process and the use of pure Beryllium membranes that dramatically improve stiffness with great benefits in transient and intermodulation distortion response.
TPM: is capable of doubling the diaphragm material stiffness without increasing the mass, showing a predictable, ideal frequency response decay and avoiding top-end spurious resonances.
3P: The Proprietary Phase Plug (3P) technology identifies a combination of radial and tangerine slot geometric design. With its short openings and high flare rate value, 3P technology assures low distortion in the mid-high frequency range, providing a smooth coherent wavefront at the horn entrance.
ESS: Elliptical Shape (ESS) technology is related to the geometric profile of the horn surface. ESS horns are able to control the directivity not only on the main vertical and horizontal planes as standard geometry horns, but also in the planes between, resulting in acoustic energy control and increased audio quality.
iD: Eighteen Sound iD loudspeakers are optimized with very low impedance for maximum power transfer from a Class D type amplifier.
Ipal: The Eighteen Sound iPAL loudspeakers are designed to couple perfectly with iPAL Differential Pressure Control technology from Powersoft S.p.A. The iPAL power amplification module features a zero latency pressure-sensor feedback applying real-time correction that maximizes the control of select Eighteen Sound high efficiency transducers for unparalleled output at low frequencies.
Please see also our merchant website: http://www.necessoire-hifi.com
