Epos ES-28N floorstand

All good things go by three“ is a proverb we often use in Germany if something happens the third time. The new ES-28N is the third model in the current EPOS line-up, and on top of it, it’s a 3-way loudspeaker made by a designer who is well known for doing 2-way systems even with bigger woofers. So what did change his mind? 

Experience! It’s just that a 2-way system is not working so well in a configuration with two woofers. OK, there is the typical D’Appolito configuration with a woofer above or below a tweeter, but as the tweeter should be sitting around one meter, the speaker would end up as a huge tower. Mounting the woofers below the tweeter would need a so called 2.5-way configuration. In such a configuration, one of the two woofers stops working in the lower midband, and the second woofer covers the rest of the midband to connect to the tweeter. That sounds like a good idea, but unfortunately, the main radiation axis for those two woofers would be tilted downwards, so it is difficult to manage the mid-frequency energy properly. So why not make it 3-way? OK, that’s what we did. 

Specifications:

Frequency Response: ​below 30Hz – 25kHz (in room) 

Average Impedance: ​ ​> 6 Ohm 

Minimum Impedance: ​ ​​3.9 Ohm @ 16kHz 

Sensitivity: ​ ​ ​​86dB @ 2.823V / 1m 

Distortion: ​ ​ ​average below 0.2% THD @ 86dB between 100Hz and 10.000Hz 

Crossover Frequency: ​330 Hz, 2700 Hz 2nd order LKR and 4th order LKR 

Bass Unit: ​ ​ ​Two High Power 7“, 36 mm voice coil diameter, Hybrid Ferrite and ​ ​ ​ ​Neodymium magnet, injection molded straight cone with Mica ​ ​ ​ ​filling. Low hysteresis rubber surround. 

Midrange unit: ​ ​5.25“ (130mm) midrange, 30mm voice coil diameter, Ferrite double ​ ​ ​ ​magnet, Mica filled PP cone. Low Hysteresis rubber surround 

HF Unit: ​ ​ ​28 mm tweeter with Aluminum/Ceramic compound dome and no ​ ​ ​ ​Ferrofluid 

Dimensions: ​ ​1050 x 250 x 360 mm (HWD) 

Weight: ​ ​ ​35 kg 

Finish: ​ ​ ​Walnut, White semi matte, Black semi matte, Jade green 

Cabinet: ​ ​ ​Reflex loaded, damped Sandwich panels, one dimensional braces, ​ ​ ​ ​Low Noise Port, Duo layer Frontpanel 

Terminal: ​ ​ ​Custom made Low Metal Mass 4 mm Banana terminal