DS18 BB4.7UF/50V-10PK Bass Blocker 8.5KHz @ 4 ohms or 4.2KHz @ 8 ohms - 10 pcs

DS18 BB4.7UF/50V-10PK Electrolytic Bass Blocker 8.5KHz @ 4 ohms or 4.2KHz @ 8 ohms 6DB/OCT. DS18’s high quality bass blocking capacitors will help your system reproduce brighter and clearer highs on installation!

eBay