Check the listing for details. Dynavox sub Watts Absorber Spikes Brass Decoupler Noise Killer Height Adjustable. Condition: New, Made in China. Listed at 9.80 USD. in loudspeaker construction and electronics trading. Known from hobby hiifi and sound+sound 30 years of authorized specialist dealer NOISEKILLER - ALL HIFI COMPONENTS ARE DECOUPLED AGAINST LOW FREQUENCY VIBRATIONS, ESPECIALLY SPEAKER BOXES - RESONANCES AND FEEDBACK ARE DESTROYED BY THE TIP PLATE OF THE ABSORBERS - SET CONSISTING OF 4 DECOUPLERS (INCLUDED IN DELIVERY 1 SET = 4 pieces) - DIMENSIONS: DIAMETER 15 MM, HEIGHT (ADJUSTABLE): 27 - 40 MM - HOLE FOR INSTALLATION (DI. X DEPTH): 12 x 15 MM - COLOR: BRASS (ALSO AVAILABLE IN SILVER OR BLACK!) Trixum: Mobile-optimized auction templates and picture hosting Trixum: Mobile-optimized auction templates and picture hosting Shipping on the same working day by DHL We will send our stuff worldwide. Please ASK US for the.