Description
Sold as one matched pair — two SMS Precision door-midrange adapters per quantity ordered.
Install a 3-Inch-Class Midrange in the Lexus IS250 / IS350 Factory 3-Way Door Location
This SMS Precision adapter pair was created for the Lexus IS250 / IS350 factory 3-way door speaker location. The production file was modeled around the BLAM Signature FRS 3N50+ 3-inch midrange.
Fitment is based on the supported Lexus IS250 / IS350 factory 3-way door configuration.
Before You Order
- Vehicle: Confirm the vehicle is a Lexus IS250 or IS350 using the supported factory 3-way door configuration.
- Speaker location: These are for the documented door-midrange position, not a universal Lexus door-speaker adapter.
- Reference driver: The production file was modeled around the BLAM Signature FRS 3N50+.
- Other 3-inch-class drivers: Do not assume nominal size alone confirms fitment. Use the on-page fitment builder to verify the exact driver or supply the required dimensions through Build to Size.
- Rear clearance: Check basket, magnet, terminals, wiring and door structure.
- Front clearance: Verify factory grille, trim and cone/surround clearance before final assembly.
Add to Cart stays locked until the required fitment confirmation is complete.
What Comes With It
- Two matched SMS Precision Lexus IS250 / IS350 door-midrange adapters
Midrange drivers, wiring and installation hardware are not included unless specifically stated elsewhere on the order.
Fit the Actual Driver — Not Just the “3-Inch” Label
Three-inch-class midranges can use different cutouts, frame diameters, basket profiles and mounting depths. The BLAM FRS 3N50+ is the documented reference driver for this production file. Any other driver still has to match the required mounting geometry and vehicle clearance.
If the exact speaker is listed in the fitment builder, use that selection. If it is not listed or the dimensions differ from current manufacturer specifications, use Build to Size and enter the required dimensions.
Construction
The adapters are 3D-printed in ASA for automotive use and made to order for the confirmed configuration.
Exact Product Details
| Sale unit | One matched pair — two adapters |
|---|---|
| Vehicle application | Lexus IS250 / IS350 with the supported factory 3-way door configuration |
| Speaker location | Factory door-midrange position |
| Reference driver | BLAM Signature FRS 3N50+ 3-inch midrange |
| Other drivers | Require exact dimensional fitment confirmation or Build-to-Size measurements |
| Material | 3D-printed ASA |
| Drivers included | No |
| Final fitment check | Verify exact driver cutout, frame, depth, basket, terminals, wiring, grille and trim clearance |