Hertz ST 25K NEO Specification Sheet

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0

2

4

6

8

10

Impedance (Ohm)

500 1000 2000 5000 10000 20000

70

80

90

100

110

120

Frequency (Hz)

SPL (dB) @ 2.83V, 1m, half space

Impedance
on axis
45°off axis

ST 25K NEO

HIGH EFFICIENCY COMPRESSION DRIVER

100 W

TECHNICAL SPECIFICATIONS

Component

Provided inline crossover

Size mm (in.) 44 (1.8)

Power Handling W peak

Impedance Ω 4
Frequency Response Hz 3k ÷ 20k
Sensitivity dB/SPL 107
Voice Coil Ø mm (in.) 25 (1)
Magnet Neodymium
Dome Aluminium
Weight of one component kg (lb.) 0,39 (0.86)

High Efficiency
Compression Driver

Hi-pass filter @
9 kHz - 6 dB Oct.

100 Hi-pass filtered @
5 kHz - 12 dB Oct.

1. Powerful Neodymium magnet providing high performance with compact size.

2. FEM (Finite Element Method) optimized phase-plug and loading horn.

3. CCAR (Copper Clad Aluminium Ribbon) voice coil for unheard-of thermal and

mechanical capability ready for an easy replacement with replacement body kit.

4. Extra-light aluminium membrane to maximize SPL with high current, screw
terminals.

5. Body waterproofing and anti-UV treatment to allow safe outdoor use without
discoloration over time.

6. “Kit” version with metallic mesh grille and inline crossover filter included.

ELECTRO-ACOUSTIC PARAMETERS

D mm 35,5
Re Ω 2,9
Fs Hz 3900
Le mH @ 1 kHz 0,03
Vas I ­Mms g ­Cms mm/N ­BL
Qts ­Qes ­Qms ­Spl dB 107

T•m

2,05

Elettromedia - 62018 Potenza Picena (MC) Italy - T [phone] - F [phone] - elettromedia.com

A 57 mm 2.24 in.
B 43,5 mm 1.7 in.
C 55,5 mm 2.19 in.
D 29,7 mm 1.17 in.

All Specifications Subject to Change Without Notice_19.A