Design Ideologies
The 2000 series arises from the experience gained with the range above it, insofar as it shares many constructive and technological choices. The same cone and basket at the 3000 series drivers for example. You may have heard the saying; if it ain’t broke why fix it? Well the ESB engineering team agrees wholeheartedly.
Design Features
Despite their modest asking price the 2000 series are still filled with cool technology. Let’s take a closer look at the components below.
Hitting Hard, Staying Strong
The ABS basket on the woofer is reinforced with fiberglass and has been engineered to obtain the maximum in terms of torsional rigidity. At the same time, it offers the minimum resistance to the passage of air displaced by the cone from the rear face. The basket plays a fundamental role in aligning the coil in the magnetic circuit, and its rigidity is crucial. A factor of no secondary importance is the damping of this component, often metal baskets tend to resonate, and this significantly alters the final sound result of the speaker. The ABS frame allows for a better clamping force torque than typical pressed steel frames and ensures that the voice coil remains well centered within the magnetic field.
Treated Paper Cones
The paper cone is the best marriage of lightness, stiffness and the ability of the cone to dampen any unwanted vibration. The waterproof treatment does not change the appearance and parameters of the speaker like the shiny polymers that add an appreciable amount of mass to the cone itself and significantly modify the sonic result. The treatment protects the cone from water dripping (like inside a door panel), as well as accidental splashes on the front of the cone.
The Motor Within
The voice coil of the woofers uses an aluminium support and a winding with a double layer technology of copper wire with an aluminium core. The long stroke design was chosen to improve sensitivity and efficiency while keeping distortion to a minimum. All these speakers are equipped with a motor with a grade Y-35 ferrite magnet, a type of magnet with significantly higher performance than the standard strontium types. The metal parts of the engine use low carbon steel and have been designed to obtain the maximum magnetic saturation, this guarantees the best electroacoustic parameters.
The Delicate Tones
The 2000 series tweeters use a silk-impregnated thin fabric dome diaphragm for an ultra-smooth sound, with an outer suspension of the same material but covered with a high-loss damping material to eliminate edge vibration and resonance. The dome is of extremely low mass and is much less susceptible to mechanical deformation than other models, yet it provides a smooth, linear and very extended response.
The Treble Engine
The 28 mm voice coil has an aluminium support and very light copper-coated aluminium wire. It’s ventilated and damped with iron-fluid oil and with anti-resonance chambers. The special ventilation design, called SVS (Surround Vented System); provides optimal cooling to be able to handle high power and avoiding compressing the air at the back of the dome; the result being a great reduction in distortion. High-grade neodymium magnets such as N-42, optimized with computer simulations to get better efficiency and improve linearity; ensure better power management and increase the bandwidth and efficiency.
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