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Aries Cerat | Legend Series - Contendo Reference 4- Wege Hornlautsprecher
“The best speaker up to date” Many speakers claimed this title, but all fell short for many reasons. Laws of physics cannot be bend ,but only be used in favor of creating a speaker perfect enough to deserve a place among the best.
Only by extended use of engineering tools,years of measurements and ear tuning and use of nothing but the best drivers for the job ,a true highest performance speaker can be born.
The Contendo is born
Horn loading is the most controversial approach in audio reproduction. Horn loading has numerous advantages over every other technology available today. Having ultra high efficiency, means total lack in power compression distortion and distortion due to high displacements of the driver’s cone. However, a not perfectly implemented horn will sound far away from what is called high fidelity.
Building a perfect horn is not an easy business. It takes time, large space and special drivers. Not your typical floor stander. Special expensive drivers are mandatory ,and not many are out there with the proper tone.
Building a proper flare for the bandwidth with perfect termination is something that not everyone takes into serious account. Large physical offsets between the drivers make the crossover design unbelievable difficult. We believe we made it possible.And the Contendo is the proof.
Using a highest quality compression driver, with 4’ titanium diagram and 11kg magnetic circuit, as our mid frequency reproducer ,requires nothing less than a perfect flared horn.We use a 350hz tractrix horn, o load the driver from 700 to 3000hz,and taking the flare back to 360o building the horn in our solid wood bullet shape enclosure ,we completely removed diffraction as an issue. Efficiency is 118db/W and is attenuated via a impedance matching transformer to 104db/w
Most horn speakers, use direct radiating drivers for midbass reproduction.We feel that anything less that a hornloaded driver would compromise the total project.Midbass is the base of the music,in all genres.
In order to cover the 110 to 700hz range we use a full size 105Hz round tractrix horn, loaded with a powerfull ultralight 8in driver,with a super strong motor and a total moving mass of just 13gr , giving unbelievable detailed and defined midbass . The tractrix flare also continues at 360deg ,and is build in a massive wooden bullet shape enclosure,in order to perfectrly terminate the horn flare, so that diffraction is not an issue here as well.Efficiency is an astonishingly 115db/w and is attenuated via an impedance matching transformer to 104db/w .No direct driver is capable of delivering the sheer impact, detail and energy and that horn delivers in an ease.
The speaker system, is accompanied by a pair of active sealed box bass-modules , equipped with two 15’ woofers each .The woofers are capable of 34mm of linear displacement , and run flat to 20Hz -6db @ 14Hz) with minimum distortion, giving the speaker earth shaking capabilities, yet at the same time not messing with the clarity of the rest audible range with any ported box noise.It is tuned for optimum transient response ,giving excellent articulated and descriptive bass.
Bass module Amplifier
The amplifier for driving these massive woofers is a hybrid stereo amplifier designed and builted in house.It uses input transformers for ground isolation and hum elimination.It's adjustable tube crossover ,with the ultra low Rp chokeloaded 6c19p tube,paraffeds another signal transformer,that drives the dual 400W class d amplifier,with their dual switching power supplies.
Thus the modules can be driven to deliver more bass that you probably can handle, with stunningly defined bass notes and pace.Only the best low frequency reproducers could be part of this 4way speaker system.
A pair of external crossovers is used for the top 3 ways, using copper foil inductors and top quality polysterine and Teflon capacitors.The crossover is tuned using state of the art equipment and software, as is the offset of the drivers.The speaker is tuned to measure ruler flat from 20 to well over 50khz.
Most importantly,we give our best to make the speaker time coherent.A perfect impulse response is a must for a highest quality reproducer.
Perfect measurements are nothing if the speaker doesn’t get you the feeling that you are there.Massive dynamics,real life timpre and breathtaking presence is something that will take a whole other meaning,when you hear the Contento horn speaker system.
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