AS4046 | Premium 4" to 4x6" Adapter

A seamless installation is crucial for reference-grade sound. Engineered to expand the mounting capabilities of our drivers, this 4" to 4x6" Adapter Set is purpose-built exclusively for German Maestro 4" car audio drivers, as well as vintage 4" MB Quart drivers (specifically authentic German-made models). Crafted with the same uncompromising quality as our speakers, it provides a precision-fit solution for upgrading challenging factory 4x6" locations without compromising acoustic integrity.

Versatile Application & Precision Fit

Constructed from highly durable, resonance-resistant polymer, these adapter plates allow you to securely mount our high-performance 4-inch round drivers into standard 4x6-inch oval factory speaker locations. By utilizing this engineered adapter, you maintain the superior sonic accuracy and transient response of a true round driver while achieving a clean, professional, factory-style fitment.

Authentic German Manufacturing & Strict Fitment

Just like our audio systems, these adapters are proudly designed, engineered, and specially made by our team in our own factory in Obrigheim, Germany. Because they are meticulously crafted in-house to seamlessly interlock with our unique proprietary basket design, these adapters are strictly incompatible with any other manufacturer's speakers. Fitment is guaranteed only for our drivers and select authentic German-made vintage MB Quart models. Contact us before purchasing to verify fitment on vintage models.

Technical Specifications & Compatibility

• Product Type: 4" to 4x6" Speaker Adapter Plates
• Material: High-Rigidity Composite Polymer
• Application: Converts 4" round driver for 4x6" mounting locations
• Compatibility: German Maestro 4" & select German-Made Vintage MB Quart 4" ONLY
• Important Note: Will NOT fit other brands due to our unique proprietary basket design.