Epos ES-14N Bookshelf

Restarting EPOS could only mean re-creating the most famous model, the ES-14. This was a 2-way speaker in a fairly big cabinet and classic looking cabinet, to be used on a dedicated stand. The design should be classic, not lifestyle, only doing things that help with the sound and as straight forward as possible.

Analyzing the old construction was interesting. It used a 7“ woofer with Polypropylene cone and an underhang coil with a huge magnet, but multiple layers of VC winding to make the whole coil heavy in order to get a sort of roll-off in the response curve of the woofer. The size of the woofer was not following any standard – too big for a 6.5“, but too small for an 8“. But it was a clever choice, because you could get more drive at lower frequencies more like an 8“ and a midband character closer to the 6.5“. g compromises in tonal balance.

Specifications:

Frequency Response: ​ ​40Hz – 23kHz (-6dB) 33Hz – 25kHz (-10dB)

Average Impedance: ​ ​> 6 Ohm 

Minimum Impedance: ​ ​4.3 Ohm @ 160Hz 

Sensitivity: ​ ​ ​ ​87dB @oe2.823V / 1m 

Distortion: ​ ​ ​ ​0.2% THD @ 1W 

Crossover Frequency: ​ ​2700 Hz 

Bass Unit: ​ ​ ​ ​High Power 7“, 35 mm voice coil diameter, Hybrid Ferrite and ​ ​ ​ ​ ​Neodymium magnet, injection molded cone with variable ​ ​ ​ ​ ​thickness and Mica filling. Low hysteresis rubber surround. 

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

Dimensions: ​ ​ ​491 x 250 x 385 mm (HWD). Stand: recommended height ​ ​ ​ ​ ​515 mm 

Weight: ​ ​ ​ ​16 kg without stand 

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

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

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

To give the speaker a home to sit on, a dedicated stand is available. The middle part is made as a massive wooden bar, combining 4 layers of wood, glued together with same damping glue used internally in the ES14N. The top plate is a double layer steel plate with a Bitumen layer in between and the bottom plate is a thick steel plate to hold adjustable spikes. The Speaker can be shipped without a stand, so other 55cm high stands can be used as well.