Driver Specification Sheet
Model No::
HDS-P835023
Rev:
1
Product Line: Peerless
Last Update: 2018-04-24 18:11:51
Product Description
This 4 inch 8 ohm driver is a member of the high performance HDS family. A powerful ferrite magnet
system is coupled to a finite element analysis designed suspension system, containing both a linear
spider design and a rubber surround. The motor contains an aluminium shorting ring, which reduces coil
inductance, thus providing both extended frequency response performance and reduced distortion. The
long-throw voice coil ensures linear high excursion performance, needed for signal clarity. The cone
necks are vented so as to reduce air compression effects under high excursion conditions. The cast
aluminium basket offers structural rigidity, heat sinking capacity for the motor, and additional air venting
under the spider so as to again reduce air compression effects. The cone in this model is aluminium,
offering a unique visual and acoustic experience.
Mechanical Drawing
Specifications
DC Resistance
Minimum Impedance
Voice Coil Inductance
Resonant Frequency
Mechanical Q Factor
Electrical Q Factor
Total Q Factor
Ratio Fs/Qts
Half Space Sensitivity @2.83V
Half Space Sensitivity @1W/1M
Gap Height
Maximum Linear Excursion
Ferrofluid Type
Driver Mass
Revc
Zmin
Le
Fs
Qms
Qes
Qts
F
db@2.83V/1M
db@1W/1M
Gh
Xmax
FF
Kg
Ohms
Ohms
mH
Hz
0.8
Fs/Qts
dB
dB
mm
mm
0.91
0.62
132.33
84.02
82.6
6
3.1
5.32
5.78
0.26
82.18
2.81
5.0%
7.5%
15%
Energy Bandwidth Product
Moving Mass
Suspension Compliance
Effective Cone diameter
Effective Piston Area
Effective Volume
Motor Force Factor
Motor Efficiency Factor
Voice coil former Material
Voice coil inner diameter
Rated Noise Power
Test Spectrum Bandwidth
Driver Size
EBP
Mms
Cms
D
Sd
Vas
BL
ß
VCfm
VCd
P
20Hz - 5kHz
Inch
(1/Qes)*fs
g
um/N
cm
cm^2
L
Tm
(T*M^2)/Ohms
mm
W
4 in
7.3
514.3
8.5
56.8
2.33
5.01
4.7
ASV
25.73
30
+/- 1.0db
+/- 1.0db
Frequency and Impedance Response
Tymphany HK LTD
Address : Room 1307-8 Dominion Centre, 43-59 Queens Rd East, Wanchai, Hong Kong
E-mail: sales@tymphany.com
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