# Tang Band W57-1781 5" x 7" Poly Woofer

**Manufacturer:** Tang Band  
**MPN:** `W57-1781`

## Specifications

| Attribute | Value |
| --- | --- |
| Brand name | Tang Band |
| Manufacturer name | Tang Band |
| Manufacturer | Tang Band |
| DimensionUnit | inch |
| Extra Product Name | Tang Band W57-1781 5" x 7" Poly Woofer |
| UPC | 844632079016 |
| Weight | 4 |
| WeightUnit | lbs |
| depth | 3.27 |
| diameter | 7.71 |
| height | 7.71 |
| height_Attrib | Overall Outside Diameter |
| length | 3.27 |
| length_Attrib | Depth |
| moq | 1 |
| MPN | W57-1781 |
| multiple | 1 |
| qtyInStock | 0 |
| SKU | 264-891 |
| snippet | Tang Band W57-1781 5" x 7" Poly Woofer. Part Number: 264-891 by Tang Band. |
| width | 7.71 |
| width_Attrib | Overall Outside Diameter |
| Brand | Tang Band |
| Model | W57-1781 |
| Part Number | 264-891 |
| Unit of Measure | Each |
| Nominal Diameter | 5" |
| Power Handling (RMS) | 50 Watts |
| Power Handling (MAX) | 100 Watts |
| Impedance | 8? |
| Frequency Response | 40 to 500Hz |
| Sensitivity | 87dB 2.83V/1m |
| Voice Coil Diameter | 1.5" |
| Resonant Frequency (Fs) | 40Hz |
| DC Resistance (Re) | 7.2? |
| Voice Coil Inductance (Le) | 0.38mH |
| Mechanical Q (Qms) | 2.12 |
| Electromagnetic Q (Qes) | 0.3 |
| Total Q (Qts) | 0.27 |
| Compliance Equivalent Volume (Vas) | 0.92ft? |
| Mechanical Compliance of Suspension (Cms) | 0.97mm/N |
| BL Product (BL) | 10.35T?m |
| Maximum Linear Excursion (Xmax) | 3mm |
| Surface Area of Cone (Sd) | 140cm? |
| Cone Material | Poly |
| Surround Material | Rubber |
| Basket / Frame Material | Polymer |
| Magnet Material | Ferrite |
| Overall Outside Diameter | 7.71" x 5.20" |
| Baffle Cutout Diameter | 5.2" |
| Depth | 3.27" |
| # Mounting Holes | 4 |
| Sealed Volume | 0.11ft? |
| Sealed F3 | 121Hz |
| Vented Volume | 0.21ft? |
| Vented F3 | 78Hz |

## Distributor availability

| Distributor | SKU | Price (USD) | Qty | Stock | MOQ |
| --- | --- | --- | --- | --- | --- |
| parts-express.com | 264-891 |  |  | None | 1 |

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Structured data: `/python/html6/product/500/239000000/239052000/part_--W571781---TangBand--77909634df.json`  
Search API: https://www.dataalchemy.com/api/  
MCP server: https://www.dataalchemy.com/mcp