ESB - Over Half A Century Of Electroacoustic Brilliance
Electroacoustic maestro ESB was officially founded in 1972. Fast forward over fifty years and it's still regarded as a world leader in loudspeaker design. During it's tenure this audacious Italian company has mastered the art of high-end speaker design, acquiring a wealth of experience and knowledge difficult to find elsewhere. Some of the most important milestones in the history of high fidelity audio have been marked by ESB. Whether it be ideologies, insights, applications of electroacoustic principles or just plain passion for high fidelity audio; achieving these milestones have become the very foundations of the company's history. You can read the genuinely fascinating history of ESB's fifty year reign by clicking here.

4000 Series – The Ultimate In Versatility.
Designed to be the ultimate in versatile component speakers, the 4000 series combine sturdy construction with a smooth and linear overall aural reproduction; yet with a most modest price tag. These components utilise advanced materials plucked from ranges above, whilst employing clever design ideologies that canvass even the smallest of details. Available in various sizes and configurations, the superb 4000 series are your go-to option when you're looking for speakers that tick all the prerequisite boxes without decimating the bank account.

Design Ideologies
The superb 4000 series from Italian audio maestro ESB represent the absolute in value for money. Designed to produce gold whilst not costing it, the 4000 stable includes multiple speaker sizes and layouts, with both components and coaxials represented. Once again we see this astute designer raising the bar insofar as making your job easy when it comes to achieving superior sound in your vehicle.

Design Features
Though the 4000 series might not be the flagship components of the ESB stable, they still feature some impressive design and material technologies. Many of which are plucked from ranges higher up. For when you’re rocking the abilities of ESB you’re not going to reinvent the wheel when designing more affordable ranges.

Sweet Domes
The dome is a silk item with polymer laminated Sonatex™. This creates a perfect balance between weight, rigidity and self-damping. The catenary curvature ensures wide dispersion of the tweeter. Under the dome a felt damper improves acoustic phase by absorbing reflections from the magnetic structure that bounce through the dome.

Magnetic North
The tweeter features a high-grade neodymium magnet. Not all magnets of equal size are equal in strength. This high-grade, high energy N-52 magnet provides a high resistance to demagnetization and is over 25 % stronger for the same mass than more common lower grade magnets. By utilizing a high-grade magnet, efficiency rises to extraordinary levels resulting in high output but controlled speaker.

Casing The Driver
The tweeters main body is fiberglass-filled ABS for superior strength.

Coupling Up
The acoustic resistance component inside of the ventilation hole helps to control and dampen dome movement resulting in reduced distortion and a linear impedance curve for improved speaker/amplifier coupling. Below this is a CNC machined ultra-low carbon alloy steel pole plate. This type of manufacturing process ensures perfect flatness so it sits perfectly flush over the magnet without reducing any crucial magnetic flux.

The Motor Within
The large aluminum copper-clad vented voice coil can handle very high power while reproducing music with extreme realism and high dynamics. The copper clad aluminum wire voice coil is very lightweight and with excellent heat dissipation capacity.

Frontside Protection
The deluxe protective stainless-steel grille has perforations calibrated to function as an acoustic lens, guaranteeing the sound emission will be in the on-axis part of the speaker and also curved to the sides, which is very useful in car installations where speaker placement often results in off-axis listening.

Mounting Plate
Also available is a CNC machined aluminum alloy, flush mounted flange. Please not this is a separate item, ordered separately.

Electrical Specifications
– Nominal configuration: one-way 1.1” tweeter set
– Continuous power handling: 100 Watts
– Maximum power handling: 200 Watts
– Voice coil diameter: 28 mm
– Frequency response: 2000 Hz – 22000 Hz
– Sensitivity: 90.5 dB
– DC resistance (Re): 3.6 Ohms
– Resonant frequency (Fs): 990 Hz
– Xmax: +/- 1 mm
– Compliance (Vas): 0.012 l
– Total Q (Qts): 0.554
– Mechanical Q (Qms): 1.529
– Electrical Q (Qes): 0.568

Physical Specifications
– Mounting diameter: 43 mm
– Mounting depth: 11.5 mm
– Weight: 0.7 kg

Documentation
– Specifications sheet
– User manual

Important Disclaimers
Given the dynamic nature of electronics industries these days; below are listed some very important specifics you need to be aware of.

Brand Authorization And Stock Sourcing
We are a fully authorised Australian dealer of this brand and all stock is sourced through legitimate channels. It therefore enjoys full Australian warranty, backing and support.

Pricing Structure
Whilst we endeavor to offer the best price possible, we ask that if you do find a better price elsewhere from an authorised dealer; please contact us. Also be aware that we regularly conduct group buys and sales, therefore pricing can sometimes be subject to change without notice.

Stock Structure
Being a dynamic store is conducive to our inventory constantly changing. We list only a small portion of our stable online, usually products most popular. Aside from these we also stock numerous other variants and configurations of these products, hence if you don’t see what you’re after please contact us.

Shipping
All our products are shipped with registered and insured postage. Upon ordering you’ll be issued with a receipt, a consignment note via which you can track your order, and we’ll also SMS you photos of the package for identification purposes.

Technical support
This last one we cannot emphasise enough! Please contact us if you require any further information or assistance with the setup and use of this product, especially pertaining to aspects more technical. As we want you to get the very best from this product.