Product Information: Part Number: UD-K621. Compatible with Toyota, Daihatsu, Audi, and Volvo vehicles. Included Accessories: 2 Hybrid Metal Die-Cast Inner Baffles, 2 Sound-Isolating Cushions, 6 Inner Baffle Mounting Screws (M5mm x 25mm), 6 Inner Baffle Mounting Nuts, 8 Speaker Mounting Screws (M5mm x 25mm), 8 Speaker Mounting Washers, 2 Waterproof Seals, 6 Baffle Spacers, 8 Silver Speaker Spacers, Instruction Manual. Installation Instructions. Easy installation. Maximize speaker performance and dramatically improve sound quality with just two items. The High-Quality Inner Baffle Professional Package includes a Hybrid Metal Die-Cast Inner Baffle and a Wave-Shaped Sound-Isolating Cushions, making it easy to improve sound quality. These two items increase the strength of the door's steel plate, suppress resonance near the mounting area, and reduce out-of-phase interference from the back of the speaker. It dramatically improves the sound quality inside the vehicle, delivering clearer, more voluminous sound. ■Innovative technology and ideas maximize speaker performance. Generally, the ideal material for the baffle plate supporting the speaker unit is strong (high rigidity) and heavy (high specific gravity). Recognizing that the intrinsic vibrations of different metals can be dramatically suppressed when they are tightly bonded together, we developed a "hybrid metal die-cast inner baffle" that combines aluminum, iron, and brass for a high rigidity and high specific gravity that suppresses the inherent resonance of metals. By suppressing unnecessary vibrations from the speaker unit while increasing the strength of the mounting surface, low-frequency response is dramatically improved, resulting in tighter bass reproduction. The "high-rigidity aluminum die-cast base" is coated with a matte black vibration-damping paint for even greater vibration control, achieving the unique texture of this top-of-the-line model. The "steel anchor plate" utilizes a finer-grained blasting process than conventional models, resulting in a larger contact area with the speaker frame and high-rigidity aluminum die-cast base, contributing to increased rigidity. The base also features a high-density, low-rebound, high-performance sealant. It enhances adhesion to the door's steel plate, eliminating distortion and resonance.
*The UD-K625/K629 does not use brass, but instead uses a combination of aluminum and steel.
■ The aluminum and steel hybrid significantly suppresses resonance.
■ Dramatically improves sound quality with the use of vibration-damping paint. The use of vibration-damping paint reduces sound pressure level by 43.9% and resonance time by up to 34.2% (compared to conventional models). Significantly suppressing unnecessary resonance, dramatically improving sound quality.
■ About the Wave-Shaped Sound-Isolating Cushion The wave-shaped sound-insulating cushion offers excellent sound insulation and vibration absorption, efficiently dispersing reflected sound waves generated within the sound-insulating cushion tube and achieving flat frequency characteristics. By blocking out-of-phase sound leaking into the door trim or from the back of the speaker through service holes, distortion of frequency characteristics is significantly improved. Furthermore, the different wave shapes on the outside and inside of the sound-insulating cushion provide effective sound insulation and vibration absorption, while efficiently dispersing reflected sound waves within the cushion tube, reducing mid- and low-frequency loss, resulting in clear music reproduction, especially in the mid- and low-frequency ranges. ■Easy installation with just two parts: High-quality inner baffle. The professional package consists of only two parts: the "Hybrid Metal Die-Cast Inner Baffle" and the "Wave-Shaped Sound-Insulating Cushion." Installation is simple and dramatically improves the acoustic environment inside your vehicle. *Images are for illustrative purposes only and may differ slightly from the actual product.

---

Car Audio Sound Quality Improvement Item Baffle Car, Motorcycle, Bicycle Automotive Car Audio, Speaker Deadening Supplies JAN/ISBN Code: 4988028502668 Product Code: 4988028502668