HDS Exclusive 4" Midwoofer
Peerless
Type Number:830881

Features

This High Definition Sound (HDS) line of products push the performance limits of midbass audio transducers in a range of sizes - from the standard 205mm (8-inch) model, down to the very small 106mm (4-inch) model. Feature-rich and utilizing copper for the lowest distortion possible, the high-end HDS Exclusive Series takes maximum advantage of over 80 years of R&D experience to help systems designers build the world's best audio products.

Driver Highlights: Nomex diaphragm, 26 mm coil, AL, CU, Phaseplug

Specs

Electrical Data
Nominal Impedance Zn 8 ohm
Minimum Impedance Zmin 6.8 ohm
Maximum Impedance Zo 30.6 ohm
DC Resistance Re 5.9 ohm
Voice Coil Inductance Le 1 mH
TS Parameters
Resonance Frequency fs 81.2 Hz
Mechanical Q factor QMS 2.31
Electrical Q factor QES 0.55
Total Q factor Qts 0.45
Ratio fs/Qts F 182
Force Factor Bl 6.4 Tm
Mechanical Resistance Rms 1.63 Kg/s
Moving Mass Mms 7.4 g
Suspension Compliance Cms 0.52 mm/N
Effective cone diameter D 8.2 cm
Effective Piston Area sd 53 cm^2
Equivalent Volume Vas 2 ltrs
Sensitivity 2.83V/1m 84 dB
Ratio BL/v Re 2.6
Voice Coil and Magnet Parameters
Voice Coil Diameter 26 mm
Voice Coil Height 13 mm
Voice Coil Layers 2
Height of the Gap 6 mm
Linear Excursion +/- 3.5 mm
Total Useful Flux 0.7 mWb
Diameter of Magnet 81 mm
Height of Magnet 15 mm
Weight of Magnet 0.31 Kg

Frequency

Mechanical Dimensions