Specifications; Thiele-Small Parameters - Hifonics ZEUS ZSPL12D2 User Manual

SPECIFICATIONS

Basket size
Outer diameter
Installation opening
Installation depth
Dual voice coil
Dual magnet
Nominal impedance
Frequency range
Power handling
Nominal power handling
Music power handling
Impulse power handling
Recommended amplifier power
The nominal power handling is given in watts RMS and represents an effective value. This corresponds to the average power value of
1
the subwoofer in the corresponding frequency range. The value is determined in a complex measuring process using pink noise. RMS is
the abbreviation for "Root Mean Square".
The music power handling represents a benchmark that reflects the performance when playing music continuously with loud and quiet
2
passages and pauses. This takes into account that the subwoofer can always "recover" and cool down thermally due to the dynamic music
playback.
The impulse power handling indicates the maximum possible power with which the subwoofer can be loaded in short pulses of around
3
one second.
The recommended amplifier power depends on the actual output power of the amplifier, which also depends on the connected on-board
4
voltage. In principle, an amplifier should always have around 20-30% more power than the nominal power handling of the speaker speci-
fied in RMS in order to avoid distortion or clipping in the audio signal, otherwise the speaker's voice coil could be damaged.

THIELE-SMALL PARAMETERS

Xmax
maximum excursion
SPL
2,83 V/1m
SD
Mms
Re
Fs
Qms
Qes
QTS
VAS
The Thiele-Small parameters stated above were determined in the measurement laboratory. Depending on the performance and applica-
tion, the values can vary by approximately ±10% in practice.
6
1
2
3
4
30 cm (12")
Ø 320 mm
Ø 276 mm
166 mm
Ø 64 mm, ‡38 mm
Y35, 2 x 60 oz. (3,4 kg)
2 + 2 Ω
30 - 300 Hz
600 Watts/RMS
1200 Watts/Music
1800 Watts/Peak
600 - 900 Watts/RMS
± 26 mm
89 dB
512 cm
2
188 g
2 x 1,8 Ω
34 Hz
4,24
0,61
0,53
42,7 L