FATfreq - Quantum

Definitely the FatFreq Quantum for me; one of my favorite IEMs especially when paired with the Super Soundstage module.

Perfect question, I have just the IEMs that you would want to compare the S12 to: Fatfreq Quantums. I think the subbass experience is something you would be hard pressed to reproduce on the S12. It is geared to be more capable of bass by default (probably air-pressure controlling chambers are the most important?). My lower end non-basshead sets are not capable of EQ-ing on as much subbass to feel the same. Also how about the fact that the Tri Clarion sibilant tips are the default on this set, yet they work best with them for a basshead set. Can you put on sibilant tips for the detail and not having the bass EQ-d? Not on all sets. Maybe not even have enough headroom to EQ up bass to be able to use the tips.

Just came to me: I think the notion of basshead sets with subpar mids and/or highs is probably a myth. I did not end up buying the Titans exactly because the reviews never really mentioned that the IEM is actually a good set outside the bass. However now I have the Fatfreq Quantums which are also similar in the fact that for a basshead set they have very wide pinpoint accurate soundstage, is incredibly detailed and it is by no means a dark piece being a U (or V?) shaped IEM. Lo and behold, the Quantums suffer from the planar bias, nobody really compared them to the pieces in a similar pricerange.

I‘ve only tried four planar iems between the F1 pro, Hook X hbb, Aether, and Quantum. I would say FATFreq Quantum is easily my favorite.

Fatfreq Quantum is currently the best Planars

Check out the Quantum from Fatfreq. You can get multiple sound signatures by swapping modules most notably the super stage module for a deeper and wider sound stage. Highly recommended especially if you value bass.

I bought Aether and then a week later got an email from FATFreq with a deal I couldn't refuse for Quantum.... it's ruined the Aether for me. But before it was legit the best planar I have heard, and the Aether costs like 1/4 of Quantum so I would definitely recommend it anyone looking to get a freaking awesome sound for not a lot of money.

Basically everything. It's got a very Aether tuning to my ear but the quality of it is just better. Very good clarity, and crazy slam. Plus they came with a cable I had been lusting for, I just didn't want to spend $200 on a cable. FWIW I got a 30% off code because I was an early purchaser of their Deuce and that whole debacle. I don't know that I would be in at $750 but at ~$530 they are a great buy.