Pair of Tang Band 4" Titanium 8 Ohm Full Range Speaker-New Never Used

Description

4" Tang Band Titanium Full Range Driver.  These are new.  They were purchased for a project about 3-4 years ago and have been stored.  I discovered I am just too lazy to do all the modifications to make them work in my existing speaker, so they have sat in the box on my shelf all this time.  It's now time to let someone else get some good out of them rather than take up space in my house.    These sell on Parts Express for apiece.
Achieves extended range thanks in part to its exotic titanium cone and o
ffers high power handling, good mechanical excursion abilities, and strong bass performance.
Great for home theater or hi-fi midbass applications.
These are highly rated speakers with the following specs.
Brand
Tang Band
Model
W4-1337SDF
Weight
3.65
Product Specifications
Nominal Diameter
4"
Power Handling (RMS)
25 Watts
Power Handling (MAX)
50 Watts
Impedance
8Ω
Frequency Response
70 to 20,000Hz
Sensitivity
89dB 2.83V/1m
Voice Coil Diameter
1"
Thiele-Small Parameters
Resonant Frequency (Fs)
70Hz
DC Resistance (Re)
6.3Ω
Voice Coil Inductance (Le)
0.03mH
Mechanical Q (Qms)
2.04
Electromagnetic Q (Qes)
0.4
Total Q (Qts)
0.34
Compliance Equivalent Volume (Vas)
0.2ft³
Mechanical Compliance of Suspension (Cms)
1.21mm/N
BL Product (BL)
5.32T·m
Diaphragm Mass Inc. Airload (Mms)
3.99g
Maximum Linear Excursion (Xmax)
2.5mm
Surface Area of Cone (Sd)
57cm²
Materials of Construction
Cone Material
Titanium
Surround Material
Santoprene®
Basket / Frame Material
Cast Aluminum
Magnet Material
Ferrite
Mounting Information
Overall Outside Diameter
4.94"
Baffle Cutout Diameter
3.74"
Depth
3.24"
# Mounting Holes
4
Optimum Cabinet Size (determined using BassBox 6 Pro High Fidelity suggestion)
Sealed Volume
0.04ft³
Sealed F3
167Hz
Vented Volume
0.09ft³
Vented F3
101Hz