Check the listing for details. Scan-Speak Illuminator D3004/604000 Dome Tweeter. Condition: New. Listed at 419.94 USD. Scan-Speak Illuminator D3004/604000 Dome Tweeter Scan-Speak Illuminator D3004/604000 Dome Tweeter Product description Highlights 1 Beryllium Diaphragm (99% pure Be) High Efficiency (90.9dB) and Low Resonance (750Hz) Patented Symmetrical Drive (SD-2) motor Shallow Non Resonant Alu Rear Chamber Neodymium Magnet Aluminum Face Plate and Chamber Sound Transparent Protective Grill 61.9mm (2.44) diameter flange with 21.5mm (.85) depth Excellent choice for both home hi-fi and autosound applications Product details Scan-Speak Illuminator D3004/604000 1 Beryllium Dome Tweeter This 1” compact Illuminator beryllium tweeter is an example of a big sound in a small body. As beryllium is a material characterized by great stiffness, light weight and high damping, the beryllium diaphragm offers all the properties required to reproduce excellent sound. Indeed, the D3004/604000 sounds fantastic. It has very low distortion and a distinct clarity that brings out the best in all types of music. Some have described the sound as holographic. The face plates are die cast in aluminum for a beautiful look with maximum mechanical stability. The D3004-604000 is optimized to offer small package sizes that can fit into tight spaces such as compact cabinets and automotive trim pieces. The back chamber is die cast in aluminum and designed with a contoured shape that functions as a heat sink in high power applications. Specifications: Compliance Equivalent Volume (Vas): 0.0003 ft.³ • BL Product (BL): 1.20 Tm • Mechanical Compliance of Suspension (Cms): 0.19 mm/N • Diaphragm Mass Inc. Airload (Mms): 0.24 g • Maximum Linear Excursion (Xmax): 0.2 mm • Surface Area of Cone (Sd): 7 cm2 Show more Show less Shipping Handling time - 5 to 21 daysShipping time - 3-5 daysShipping Method - We ship only with UPS Express Stock - Not all items are in stock. They are held in several warehouses. Customs - No custom fees / Ask about invoice declaration Condition - New straight from the factory Items location - EUROPE Shipping - to the whole world. Service FOR THE BEST SHIPPING PRICE PLEASE ADD YOUR ITEMS TO CART AND REQUEST TOTAL FROM THE SELLER