DS18 PRO-HP52 2″ Throat Shallow Bolt On 57° 2.61″ Depth Plastic Horn DS18’s PRO-HP52 is our latest addition to our series of short throated horns! This waveguide has a mounting depth of 2.61” and a throat diameter of 2” for extreme directional sound that can fit anywhere! This short horn is built for compression drivers and constructed from ABS Plastic for higher resistance to corrosion and physical damage as well as a brighter selection of colors to choose from! To give your system a more polished look, DS18 is offering the PRO-HP52 in five unique colors: Black, Chrome Blue, Chrome Gold ,Chrome Red and Chrome Red/White. This bolt on throat requires a 4-bolt pattern on your driver to be installed correctly. Never sacrifice your systems space for directional sound again with the PRO-HP52 ! Highlights ABS Plastic Frame Shorter style horn to save mounting depth space but still get tons of directional volume 4 bolt pattern for comparability for most bolt on drivers Great For Stunt Walls Car Audio Technical Details PRO-HP52/BK Product Manual Installation Type Bolt-on Throat Diameter: 2 / 50.8mm Nominal Horn Diameter: 6.5 Sound Coverage: 57° Rounded Measurements: Overall Diameter: 7.08 / 180mm Overall Depth: 2.96″ / 75.25mm Mounting Depth: 2.6 /66.04mm Driver Bolt Pattern: 4.05/ 102mm x 4-0.26 / 6.8mm Mounting Bolt Pattern: 6.3 / 161mm x 4- 0.21 / 5.5mm Mounting Hole Diameter: 5.43″ / 138mm