Polk Audio RTA 11T passive radiator rattle at full excursion

i just got these Polk Audio RTA 11T from Facebook market place and when I play them at a louder volume the passive radiator rattles at full excursion. i took the passive radiator out and they look fine but I notice the rattling is coming from the Polk audio sw83 passive radiators on both speakers any idea what it could be I hope this is the right place to put this question


  • JayMX
    JayMX Posts: 427
    Sometimes the spider will crack or separate from the basket, resulting in nasty sounds. I’ve had good luck repairing the spiders with Aileen’s Tacky Glue.
    Current Collection: Monitor 4a (Peerless), Monitor 5B (Peerless), Modified Monitor 7b (Peerless), RTA15TL (SL3000), SDA CRS+ (194’s), SDA SRS 2.3TL, R100's, R200’s, R300 🤩
    Pairs that have passed through: Monitor 4b (Peerless), Monitor 5a (Peerless), Monitor 5b (SL1000), Monitor 5b (SL2000) (3x pair), Monitor 7b (Peerless), Modified Monitor 7c’s (194’s), Monitor 10a (Peerless), Monitor 10b (5x pair), RTA8, RTA8TL, RTA 11T, RTA12c (194's), SDA CRS, SDA 2 (2x pair), SDA 2a, SDA 2b, SDA 1b, SDA 1c, SDA SRS 2 (2x pair), SDA SRS 3.1TL (198’s) (2x pair)...and more to come, it’s a sickness.