Hertz ESK 165.5 Leaflet

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All specifications subject to change without notice_13.C
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Technical Specifications
Electro-Acoustic Parameters
Component 
Two way system
Woofer size 
mm (in.) 
165 (6.5)
Tweeter diaphragm 
mm (in.) 
26 (1)
Power handling  
W peak 
300
 
W continuous 
100
Impedance 
Ω 4
Frequency response 
Hz 
60 ÷ 23k
Sensitivity 
dB SPL 
93,5
Woofer magnet size D·d·h  mm (in.)  85 x 32 x 15 (3.35 x 1.26 x 0.5)
Tweeter magnet size D·d·h  mm (in.) 
19 x 3 (0.75 x 0.12)
Woofer voice coil Ø 
mm (in.) 
25 (1)
Tweeter voice coil Ø 
mm (in.) 
20 (0.8)
Woofer magnet 
High density flux ferrite
Tweeter magnet 
- Neodymium
Woofer cone 
Water repellent pressed paper
Tweeter dome 
- Tetolon
Crossover type 
LP/HP @ 3 kHz - 6/12 dB Oct.
Component adjustment 
dB 
+2; 0; -2
Woofer weight 
of one component 
kg (lb.) 
0,96 (2.12)
Tweeter weight 
of one component 
kg (lb.) 
0,03 (0.07)
Crossover weight 
of one component 
kg (lb.) 
0,17 (0.37)
 
 
Tweeter Woofer 
mm 
20 134
Xmax 
mm 
- 3
Re 
Ω 
3,7 3,1
Fs 
Hz 
1350 70
Le  
mH 
0,02 0,18
Vas 
- 10,4
Mms 
0,19 13,7
Cms 
mm/N 
0,07 0,37
BL 
T·m 
1,5 5
Qts 
0,9 0,61
Qes 
2,7 0,76
Qms 
1,5 3,2
Spl 
dB 
92 93,5 
ET 26
.5                    
150 W
ECX 100
.5       
120 W
EMV 100
.5      
120 W
EV 130
.5                
150 W 
EV 165
.5                
210 W 
EV 165L
.5          
210 W 
EV F165
.5          
180 W 
ESK 130
.5       
225 W
ESK 165
.5       
300 W
ESK 165L
.5  
300 W
ESK 163L
.5  
375 W
ESK F165
.5  
270 W
ECX 130
.5       
150 W
ECX 165
.5       
210 W
ECX 570
.5       
210 W
ECX 690
.5       
300 W
ET 26.5
1.
  Tetolon dome, with hemispheric profile and wide roll surround; extremely  
 
  light weight and properly damped for smooth and extended high frequency    
 response. 
2.  Acoustic compression chamber; high efficiency and off-axis optimized 
 response.
3.  CCAW (Copper Clad Aluminium Wire) ultra light ferrofluid-cooled mobile 
  voice coil.
4.  High energy neodymium magnet. 
5.  Low carbon content plates for maximum magnetic permeability and high 
  heat dissipation.
6.  Damping material; controlling acoustic resonances insuring clear, high 
  frequenc tones.
EV 165.5
1.   
V-cone
®
 for best off-axis response and clear mid-high frequency detail.
2.   Water-repellent treated paper cone; butyl rubber surround.
3.   Pure copper voice coil, wound on aluminium former, for exceptional thermal   
 
and mechanical capacity.
4.   Large motor assembly for excellent control of voice coil.
5.   Low carbon content plates for maximum magnetic permeability and high 
 
heat dissipation.
6.   Rubber magnet cover provides damping to the basket and motor structure    
 
and protects from abrasions and damages.
7.   DIN size basket coated with scratch-proof, corrosive-resistant material. 
8.   Tin-plated, high current terminals.
9.   Silver-plated lead wires, for maximum reliability and conductivity.
10. Epoxy glue for basket and motor system provides perfect coupling.
11. Curve memory Nomex spider for consistent, reliable performance.
- Tweeter mounting accessories and woofer grille included