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Specs:
HDS PPB
4″ Midwoofer
Type Number: 830870
Features:
The new High Definition Sound (HDS) PPB series is the
culmination of Peerless working in close partnership with end
users of Peerless-based audio products. With a deep
understanding of customer requirements and needs, Peerless
developed the proprietary and highly advanced Polypropylene
Black (PPB) cone material used in the HDS PPB Series, creating
a stiff but still dampened cone that remains stable even under the
greatest sound pressures.
See architecture notes for HDS Platform
Driver Highlights: PPB diaphragm, 26 mm coil, AL
See Application Notes
Go to Application Notes.
Go to Architecture Notes
Electrical Data
Nominal impedance
Minimum impedance
Maximum impedance
DC resistance
Voice coil inductance
T-S Parameters
Resonance Frequency
Mechanical Q factor
Electrical Q factor
Total Q factor
Force factor
Mechanical resistance
Moving mass
Suspension complian ce
Effective cone diameter
Effective piston area
Equivalent volume
Sensitivity (2.83V/1m)
Ratio BL/√(Re)
Ratio fs/Qts
Power handling
Zn 8 ohm
Zmin 5.6 ohm
Zo 30.8 ohm
Re 5.2 ohm
Le 0.6 mH
fs 77.6 Hz
Qms 3.19
Qes 0.65
Qts 0.54
Bl 4.8 Tm
Rms 0.9 Kg/s
Mms 5.9 g
Cms 0.72 mm/N
D 8.4 cm
Sd 55 cm
Vas 3 ltrs
87 dB
2.1
F 144
2
100h RMS noise test (IEC)
Long-term Max Power (IEC 18.3)
Max linear SPL (rms) @ power
Short Term Max power (IEC 18.2)
Voice Coil and Magnet Parameters
Voice coil diameter
Voice coil height
Voice coil layers
Height of the gap
Linear excursion +/Max mech. excursion +/Flux density of gap
Total useful flux
Diameter of magnet
Height of magnet
Weight of magnet
Notes:
IEC specs refer to IEC 60268-5 third edition.
All Tymphany products are RoHS compliant.
-- W
-- W
-- dB/W
-- W
26 mm
12 mm
2
6 mm
3 mm
-- mm
-- mWb
0.7 mWb
81 mm
15 mm
0.31 Kg
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Frequency: 830870
Mechanical Dimensions:830870
Tymphany™ and are trademarks of Tymphany Corporation. © 2009, Tymphany Corporation. All rights reserved. 012409
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