A shorting ring on the polepiece is responsible for the speaker's extremely low levels of second and third order harmonic distortion. This impressive motor is coupled to an optimized paper cone with rubber surround, supported by a cast aluminum frame.
Product Details | |
|---|---|
| Brand | Tang Band |
| Model | W4-1720 |
| Part Number | 264-872 |
| UPC | 844632069604 |
| Unit of Measure | Each |
| Weight | 4.1 |
Product Specifications | |
|---|---|
| Nominal Diameter | 4" |
| Power Handling (RMS) | 30 Watts |
| Power Handling (MAX) | 60 Watts |
| Impedance | 4Ω |
| Frequency Response | 60 to 8,000Hz |
| Sensitivity | 86dB 2.83V/1m |
| Voice Coil Diameter | 1.25" |
Thiele-Small Parameters | |
|---|---|
| Resonant Frequency (Fs) | 60Hz |
| DC Resistance (Re) | 3.8Ω |
| Voice Coil Inductance (Le) | 0.04mH |
| Mechanical Q (Qms) | 2.33 |
| Electromagnetic Q (Qes) | 0.51 |
| Total Q (Qts) | 0.42 |
| Compliance Equivalent Volume (Vas) | 0.21ft³ |
| Mechanical Compliance of Suspension (Cms) | 0.13mm/N |
| BL Product (BL) | 3.82T·m |
| Diaphragm Mass Inc. Airload (Mms) | 5g |
| Maximum Linear Excursion (Xmax) | 5mm |
| Surface Area of Cone (Sd) | 57cm² |
Materials of Construction | |
|---|---|
| Cone Material | Paper |
| Surround Material | Rubber |
| Basket / Frame Material | Cast Aluminum |
| Magnet Material | Ferrite |
Mounting Information | |
|---|---|
| Overall Outside Diameter | 4.95" |
| Baffle Cutout Diameter | 3.75" |
| Depth | 3.25" |
| # Mounting Holes | 4 |
Parts Express Staff Recommended Enclosure Volume | |
|---|---|
| Sealed Volume | 0.15ft³ |
| Sealed F3 | 114.6Hz |
| Vented Volume | 0.2ft³ |
| Vented F3 | 59.7Hz |
