JBL 5" Foam Repair Kit (R103, R121, LX-44 Midrange & More)
JBL 5" Foam Repair Kit (R103, R121, LX-44 Midrange & More)
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100% Fit Guarantee
Wrong size or doesn't fit? We'll cover the return — pick a full refund or a free replacement in the correct size, on us.
Technical Specifications & Sizing
| Measurement Type | Dimension |
| Model | 5F#1 |
| Outer Diameter (A) | 125mm |
| Roll Outer Diameter (B) | 110mm |
| Cone Diameter (C) | 95mm |
| Inner Diameter (D) | 80mm |
| Gauge | 0.5mm |
| Edge Type | Flat Edge |
Repair Kit Contents
| Included Item | Quantity |
| Premium Foam Surrounds | 2x |
| T7000 High-Grade Glue | 1x |
| Precision Applicator Brush | 1x |
| Detailed Paper Instructions | 1x |
JBL Speaker Compatibility & Fitment Guide
This premium 5-inch foam surround repair kit (Model 5F#1) is engineered to fit a diverse selection of JBL loudspeakers, ranging from dedicated mid-range drivers in large floorstanding cabinets to compact home cinema monitors. Restoring original foam surrounds corrects driver distortion and brings back precise acoustic balance.
Check the categorised lists below to verify if your exact JBL model or driver component is supported.
JBL Midrange Component Drivers
Specially sized to fit the dedicated mid-range transducers within classic multi-way JBL tower configurations:
- Midrange Drivers: LX-44 (Midrange), R103, R121, R123, R133
JBL Control, Monitor & Pro Series
- Compact Series: Control 5, JBL ONE, M5
JBL Home Cinema & Bookshelf Series
- TLX Series: TLX-105, TLX105
- Loudspeaker Systems: ARC, FLIX 1, XTi 10, G40
Factory Component & Part Numbers
- JBL Production Code: 76431
Looking for the JBL Control One? That model takes our 4.5" surround (115mm / 75mm) — see the JBL Control One Foam Woofer Repair Kit.
💬 If your model is not listed above, it doesn't mean it won't fit — drop us a message and we'll gladly check it for you!
Guides
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How to Repair Speaker Surrounds: Step-by-Step V...
Welcome to the North Speaker Parts definitive guide to DIY speaker restoration. Whether your vintage hi-fi foam has rotted away or your rubber surrounds have split, you can bring your...
How to Repair Speaker Surrounds: Step-by-Step V...
Welcome to the North Speaker Parts definitive guide to DIY speaker restoration. Whether your vintage hi-fi foam has rotted away or your rubber surrounds have split, you can bring your...
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Speaker Repair FAQ, Tips & Sizing Guide
General Questions I am not sure if a repair kit fits my speaker. What should I do? STOP! Please contact North Speaker Parts right away before applying any adhesive. If...
Speaker Repair FAQ, Tips & Sizing Guide
General Questions I am not sure if a repair kit fits my speaker. What should I do? STOP! Please contact North Speaker Parts right away before applying any adhesive. If...
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How to Measure a Speaker for New Foam or Rubber...
Don’t let rotted foam or cracked rubber ruin a perfectly good pair of vintage speakers. Repairing them yourself at home is easier than you think, but there is one crucial...
How to Measure a Speaker for New Foam or Rubber...
Don’t let rotted foam or cracked rubber ruin a perfectly good pair of vintage speakers. Repairing them yourself at home is easier than you think, but there is one crucial...
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