Tweeters with ferrofluid

We have personally verified that ferrofluid has been used in the following tweeters:

B&W Nautilus series tweeters
  • N801
  • N802
  • N803
  • N804
  • N805
  • NHTM1
  • NHTM2

B&W CC serie tweeters
  • CC6

B&W P-serie tweeters
  • P4
  • P5
  • P6

B&W CDM-serie tweeters
  • CDM1
  • CDM1SE
  • CDM7
  • CDM7SE
  • CDMCSE
  • CDM1NT
  • CDM7NT
  • CDM9NT
  • CDMCNT

B&W DM60x tweeters
  • DM601
  • DM602
  • DM603
  • DM604

B&W DM60x S2 tweeters
  • DM601S2
  • DM602S2
  • DM603S2
  • DM604S2
  • DM605S2
  • LCR6S2

B&W DM60x S3 tweeters
  • DM600S3
  • DM601S3
  • DM602S3
  • DM602.5S3
  • DM603S3
  • DM604S3
  • LCR60S3
  • LCR600S3
  • LCR60S3
  • DMS600
  • DMS601

Dynaudio tweeters
  • Esostar
  • Esostar 2
  • Esostar 3

Infinity tweeters
  • 9742060

KEF tweeters
  • T33
  • Q55
  • C55

Magnat tweeters
  • Transpuls tweeters

Wharfedale tweeters
  • Diamond 220

These tweeters can benefit from replacing the ferrofluid.
If a tweeter isn't on this list, it doesn't mean ferrofluid wasn't used. We know there are dozens, if not hundreds, of other tweeters that use ferrofluid. But we know for sure about the tweeters mentioned above based on personal experience.

©Good Hifi, 21-07-2025