ATOHM EURUS E-5 Kit DIY Bookshelf Speaker 2 Way LD150CR04 and SD28ND04RD (Unit)

ATOHM EURUS E-5 Kit DIY Bookshelf Speaker 2 Way LD150CR04 and SD28ND04RD (Unit)
This Eurus E-5 Atohm kit will allow you to design your own high-end HiFi bookshelf speakers based on two speakers from the "Absolute Series" range.

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Reference : 13102
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541,67 €tax excl.

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Accessories for this product

Find here a selection of useful and/or essential accessories for this product. These are specially selected by the Audiophonics team according to the characteristics of the product.

 
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Note: This kit includes only the two loudspeakers, their filters and mounting accessories (screws, terminals, etc.). The cabinet kit is sold separately.

ATOHM KIT EURUS E-5

Kit DIY Bookshelf Speaker 2 way SD28ND04RD + LD150CR04 (Unit)

ATOHM KIT EURUS E-5 Kit DIY Enceinte bibliothèque 2 voies SD28ND04RD + LD150CR04 (Unité)

This Eurus E-5 Atohm kit will allow you to design your own high-end HiFi library speakers. It is built around two loudspeakers from the "Absolute Series" range. On the one hand, the LD105CR04 low-bass dium ensures a high level of sensitivity as well as perfect bandwidth reproduction. This speaker is capable of delivering a distortion-free signal and has superb electrical power handling.

On the other hand, the SD28ND04RD tweeter is adorned with a 28mm direct radiation silk dome with a powerful odymic motor, allowing to reach a sensitivity of 98dB, a beautiful linearity and a great smoothness.

LD150CR04

The kit therefore proposes an LD150CR04 Bass-medium loudspeaker. It has a specific alloy diaphragm with a peripheral suspension using LDS (Low Diffraction Surrounding) technology. This technology is characterized by a particular profile ensuring a progressive fractionation of the suspension in the mediums.

The motor benefits from another technology, FWI (Force Without Inductance). This consists in optimizing the geometry of the parts to obtain a wide and symmetrical force factor. The core of the loudspeaker has a copper ring that limits the creation of induced currents in polar parts. This technique allows this time the reduction and linearization of the winding inductance value. As a result, distortion by odd harmonics and intermodulation is greatly reduced and the bandwidth is more linear and extensive. Thus, this loudspeaker is characterized by very low distortion rates, excellent performance and high excursion capacity.

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Kit Athom Eurus E-5
Kit Athom Eurus E-5

S28ND04RD

The MD150CR04 is accompanied by an SD28ND04RD Tweeter. This is a high performance model that covers a wide frequency band. It incorporates a 28mm treated silk dome, fixed to a voice coil with aluminium support. The loudspeaker motor has a large Neodymium ring (56mm outer diameter). This motor allows to obtain an intense and linear flow. In addition, in order to increase the permissible power, the air gap is ferrofluidised.

Also worth noting is the magnificent façade made of die-cast aluminium, which avoids parasitic vibrations. It also benefits from Athom's ADP (Anamorphic Dispersion Patterns) technology, allowing better off-axis dispersion and also limiting parasitic reflections at very high frequencies.

At the rear, the damped cavity optimizes the Tweeter's low frequency behavior. Like the LD150CR04, the core has a copper ring to limit the creation of induced currents in polar parts. The frequency response is characterized by excellent linearity, low directivity and an extension greater than 30kHz. This complex and meticulous design makes this speaker an exceptional model, offering fine reproduction, high efficiency and very low distortion rates.

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Technical characteristics

Note: This kit includes only the two loudspeakers, their filters and mounting accessories (screws, terminals, etc.). The cabinet kit is sold separately.

Global specifications
Speaker typeBookshelf speaker 2 way Bass Reflex
Power handling100 Weff
Peak power200W
Impedance6 Ohm
Sensitivity89dB/2.83V/1M
Frequency response50Hz - 30kHz
Frequency roll-off2500Hz
Filtering slope1st order with tweeter delay
Woodwork sold separatelyWoodwork MDF 19mm Walnut finish, Wenge stained, Satin varnish
Package1x Tweeter SD28ND04RD
1x Woofer LD150CR04 + Grille tissu
Filter
Terminals
Screws and spacers
LD150CR04 characteristics
Speaker typeMidbass
Power handling100W RMS
Peak power200W Max
Sensitivity91dB/2.83V/1m
Impedance4 Ohm
DC Resistance3.2 Ohm
Resonant frequency59.4Hz
Total quality coefficient (Qts)0.53
Electric quality coefficient (Qes)0.56
Mechanical quality coefficient (Qms)11.72
Surround compliance (Cms)0.64mm/N
Mms11.2g
Vas9.2L
Bl4.9N/A
Le0.24mH
Sd104.9cm²
Coil diameter25mm
Coil height15mm
Air gap height6mm
Flux density10600 gauss
Linear excursion+/-6mm
Max excursion+/-11mm
Recommended roll-off frequency2500Hz
SD28ND04RD characteristics
Speaker typeTweeter
Power handling100W RMS after filtering
Peak power300W Max after filtering
Sensitivity98dB/2.83V/1m
Impedance4 Ohm
DC resistance3.6 Ohm
Resonant frequency1200Hz
Coil inductance (Le)0.003mH
Sd6.6cm²
Coil diameter28mm
Coil height1.5mm
Air gap height2mm
Flux density17000 gauss
Linear excursion+/-0.25mm
Recommended roll-off frequency2500Hz
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Data sheet
Speaker Power (W RMS)100
 
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ATOHM EURUS E-5 Kit DIY Bookshelf Speaker 2 Way LD150CR04 and SD28ND04RD (Unit)
This Eurus E-5 Atohm kit will allow you to design your own high-end HiFi bookshelf speakers based on two speakers from the "Absolute Series" range.

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