DECA

Tailored to meet the requirements of discerning audiophiles.

We are thrilled to introduce our latest high-end loudspeaker monitor - DECA. This model is specifically tailored to fulfill the unique high-end requirements of audiophiles who demand exceptional sound quality.

DECA is a 3-way design that allows for an extended frequency response down to 33.5 Hz -3dB, providing a deep bass response. Our approach includes a band-pass subwoofer inside the cabinet, three specialized drive units, and advanced horn technology, ensuring that DECA delivers an unparalleled listening experience. We are proud to say that DECA is entirely designed and manufactured by Lange Loudspeakers SA in Switzerland, including the drive units. The front area, which includes the horn as well as the back area are milled from a block of aluminum, providing exceptional durability and minimizing cabinet resonance.

DECA is available only as a fully active concept. The electronics implemented include a high quality 2 x 125W amplifier that exceeds by far the requested power of the drivers in use and a dedicated 500W amplifier for the low frequency section! To manage the drivers probably one of the best DSP platforms has been implemented. It offers state-of-art performance never seen before with COTS crossovers. The SHARC ADSP-21565 is the most powerful DSP crossover ever used in an embedded crossover design, operating at 192kHz with S/N > 123dB. 

Suggested end user price; 5'960.- CHF per unit

Technical features

Suitable applications

Description

Cabinet Construction

Front area as well as back panel aluminum, cabinet is Finnish birch, wood finish or painted

Drive units

Frequency range - 33,5Hz to 28kHz (+/-1,5 dB from reference axis)

Sensitivity - 89 dB (on axis at 2.83Vrms at 1m)

Designed and manufactured by Lange Loudspeakers SA

This exceptional compression driver offers an extended frequency response ranging from 1200 Hz up to 28 kHz. Featuring an ultra-light magnesium dome, it is equipped with a 3-channel circumferential phase plug specifically designed for our systems. With a magnetic induction of 15000 gauss and a 0.5 mm Xmax, it delivers high efficiency, low distortion, and an extended frequency range. The relatively large horn of the DECA enhances broad coverage, even at frequencies beyond the human hearing threshold.

Designed and manufactured in house! 

The driver design incorporates a comprehensive array of refinements aimed at simplifying manufacturing and ensuring reliable operation within our loudspeaker systems. Our approach meticulously addresses manufacturing tolerances to enhance performance. Beginning with the magnet, we have adopted a slug type design for multiple reasons: it offers optimal efficiency, minimizes reflections towards the diaphragm due to its compactness, and facilitates superior cooling of the coil. Additionally, the coil support features strategically placed ventilation holes to minimize mechanical resistance (Rms) and promote highly efficient operation. The diaphragm has been designed to maximize frequency response by employing a transitional geometry rather than a dome or cone shape. Constructed from anodized aluminum and coupled with nitrile suspensions, it minimizes tolerances (reducing Mms tolerance) effectively. The absence of a dust cap further contributes to keeping tolerances to a minimum. The frame is CNC-manufactured, facilitating precise centering of all components during production. Its geometry effectively dissipates heat from the coil and promotes the smooth flow of acoustic energy, thereby minimizing reflections..