Helix PR T25-S

Technical data

Impedance Z 4 Ω
DC resistance Re 3.4 Ω
Frequency response 2,500 Hz - 25,000 Hz
Resonance frequency Fs 1,400 Hz
Sensitivity
SPL
92 dB @ 2,83V / 1m
89 dB @ 1W / 1m

Voice coil diameter ø 25 mm
Cone area Sd 4.9 cm²
Moving mass Mms 0.3 g
Cone material Coated silk dome
Outer diameter
(more data see data sheet) ø 37.7 mm / 1.48″
Installation diameter
(more data see data sheet) ø 37.7 mm / 1.48″
Installation depth
(more data see data sheet) 10.6 mm / 0.42″

Recommended crossover frequencies for the highpass
Slope Minimum crossover frequency
6 dB/Octave 4,000 Hz
12 dB/Octave 3,000 Hz
24 dB/Octave 2,500 Hz

Scope of delivery
2 x Hochtöner PR T25-S
2 x Aluminum flush mount housing
2 x OEM spacer
2 x Standard grille
2 x Exclusive HELIX grille
1 x Mounting material