# Tang Band W4-1720 4" Underhung Midbass Driver

**Manufacturer:** Tang Band  
**MPN:** `W4-1720`

## Specifications

| Attribute | Value |
| --- | --- |
| Brand name | Tang Band |
| Manufacturer name | Tang Band |
| Manufacturer | Tang Band |
| DimensionUnit | inch |
| Extra Product Name | Tang Band W4-1720 4" Underhung Midbass Driver |
| UPC | 844632069604 |
| Weight | 4.1 |
| WeightUnit | lbs |
| depth | 3.25 |
| diameter | 4.95 |
| height | 4.95 |
| height_Attrib | Overall Outside Diameter |
| length | 3.25 |
| length_Attrib | Depth |
| moq | 1 |
| MPN | W4-1720 |
| multiple | 1 |
| qtyInStock | -2 |
| qtySource | FieldMap |
| SKU | 264-872 |
| snippet | Tang Band W4-1720 4" Underhung Midbass Driver. Part Number: 264-872 by Tang Band. |
| width | 4.95 |
| width_Attrib | Overall Outside Diameter |
| Brand | Tang Band |
| Model | W4-1720 |
| Part Number | 264-872 |
| Unit of Measure | Each |
| Nominal Diameter | 4" |
| Power Handling (RMS) | 30 Watts |
| Power Handling (MAX) | 60 Watts |
| Impedance | 4? |
| Frequency Response | 60 to 8,000Hz |
| Sensitivity | 86dB 2.83V/1m |
| Voice Coil Diameter | 1.25" |
| Resonant Frequency (Fs) | 60Hz |
| DC Resistance (Re) | 3.8? |
| 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) | 0.21ft? |
| 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) | 57cm? |
| Cone Material | Paper |
| Surround Material | Rubber |
| Basket / Frame Material | Cast Aluminum |
| Magnet Material | Ferrite |
| Overall Outside Diameter | 4.95" |
| Baffle Cutout Diameter | 3.75" |
| Depth | 3.25" |
| # Mounting Holes | 4 |
| Sealed Volume | 0.15ft? |
| Sealed F3 | 114.6Hz |
| Vented Volume | 0.2ft? |
| Vented F3 | 59.7Hz |

## Distributor availability

| Distributor | SKU | Price (USD) | Qty | Stock | MOQ |
| --- | --- | --- | --- | --- | --- |
| parts-express.com | 264-872 |  |  | None | 1 |

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Structured data: `/python/html6/product/500/22000000/22176000/part_--W41720---TangBand--0048c79eb0.json`  
Search API: https://www.dataalchemy.com/api/  
MCP server: https://www.dataalchemy.com/mcp