FATfreq - Deuce
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Reddit Reviews:
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Last updated: Dec 15, 2025 Scoring
Liked most:
1943
79
"A good robovac is a life changer. Even a $350 basic S8. It is a great place to start. ... I promise you that you will not be disappointed by a basic S8. It will change your life even if it can't fit under every piece of furniture you own. ... My two S8s just finished vacuuming our entire house in about 46 minutes. ... While my floors were being cleaned, I sat comfortably on our patio in the cool shade with a slight breeze and composed my far too long response to you while sipping a diet soda and relaxing. ... I will have to spend about four minutes maintaining my two S8s. This will be my entire contribution to my home floor cleaning effort for today. Four minutes!"
"Like 500$ these robots are currently the steal of the century ... You can get a mova p10 pro ultra (cannot remove its mops), equivalent to the l40/x40 for 500$ after a discount code"
"I got the Q5 Pro for $139. ... costs $450 less than what I paid for the S6 ... it is the best value option out there imo."
52
11
"And I've managed to wear it pretty consistently for almost a year now, to the point when I take it off to charge when I shower I miss it. ... This is genuinely the longest amount of time in my entire life I've managed to go with having something on my wrists/hands."
"Additionally Whoop is simply comfortable to use 24/7."
"i wear glasses, got these this week and its a game changer. ... i always felt like i was in a fishbowl with combo of glasses plus headset even though it was a great one (audeze maxwell). I recommend these!"
30
14
"has a dedicated "woofer driver" that handles things below 150hz"
"I have never enjoyed Bass so much."
"Couldn't have said it better lol. ... The bass not only slaps it rumbles. ... I truly enjoy them, especially when I listen to old-school hip-hop. rap, DnB, Metal."
10
11
"Deuce sub bass is there, but it doesn’t drown everything else out. Vocals and highs are very much present, same with mids."
"Classic FATFreq signature. It’s deep, thumpy, and perfectly balanced with the treble. No mids bleed, which is a huge plus. ... Pair them with a good DAC/Amp, and you’ll feel that spine-tingling “thrrr” rumble."
"The Deuce has great balance between bass and treble, doesn't feel like the bass muddies the vocals."
6
2
"Nahimic and Sonar: Perfect for gaming/calls/discord."
"I have also used the desktop headphone jack to listen to music, gaming and discord all at the same time and I am really impressed. ... Could hear each layer of sound from different channels perfectly audible. ... Im really impressed how well I can hear the subass/bass whilst listening to different audios at the same time..."
"I really love the Deuce, but that’s just for listening to music"
Disliked most:
5
17
"Didn't have enough bass for me"
"DaVinci’s are getting better the more I listen and their bass outguns the FF’s (I like 1dB shy of tinnitus). ... The FF (and not to labour it) also had the advantage of high impedance mode and still came off 2nd best. Give you an example one of my IEM/headphone go to test songs is Last Night by Rivo and with the DD it hits hard."
"While the deuce has nice bass slam, the rest of the sound lacks resolution. Almost to the point of sounding muffled."
8
49
"After 7-ish, double clicking Nagas"
"When my old old naga finally gave out several years ago, I managed to go through 3 new razer mice in a single year."
"Those things broke so fast in my experience."
6
28
"deuce awful for competitive gaming"
"Bass version - Best avoid with competitive games, especially Valorant. ... QDC and heavy as well."
"the castor pro (bass edition) for VALORANT is BULLSHIT."
6
19
"No bass ... Their bass is very very lean."
"vocals are very muted on castor"
"While the deuce has nice bass slam, the rest of the sound lacks resolution. Almost to the point of sounding muffled."
1
3
"Too bad they dont fit me ... Yeah its a weird fit. Its somehow too big and too small at the same time. ... But it still sucks"
"Also, the shell is huge on Deuce. ... It's even bigger than the Zero Red in my experience."
"they just don't fit my ear that well"
as the title says, i love my defiants, they sound so rich, perfect for me, i like "musical" music, like instrumentals, soundtracks, edm. but i also like the highend instruments. i also own the fatfreq decue, while amazing rumble on them, i use them to listen to EDM and while bike riding (for their fit). i prefer the balance of the defiants. i boosted the bass to my preference, almost basshead levels. while retaining the clarity. i love the bass texture of the defiants. the imaging is also very good. SO what should i buy in the next 6-9 months. under 500$ only. i need to save up to buy. The Martillo is a recommendation i get a lot.
r/iems • What IEM would be a major upgrade from juzear defiant. ->Also, i considered myself a basshead, but I also own the deuce, fantastic iem btw. the quantity is more than enough, a bit overwhelming, I was quite shocked myself, I prefer the bass texture and quality of the defiants more. The martillo is better in terms of bass quality right? And I started enjoying the separation and imaging of the instruments. I'm eyeing the softears volume s, xennis tea or top pro and the martillo as well.
r/iems • What IEM would be a major upgrade from juzear defiant. ->The Deuce is amazing. I sold all my other IEMs once I got the Deuce bc I knew they would never get time. Its very bassy but also very well balanced.
r/inearfidelity • Best bass iems? ->it scales really well with an amp, but I run mine right off the Apple Dongle and it sounds great. When I wanna use the impedance adapter, I pair it with my Quedelix 5K.
r/inearfidelity • Best bass iems? ->+1 aoshida eqd to deuce
r/iems • What's the best sub 40-50$ iem that does sub bass and soundstaging best. ->Imho hell no. The deuces are the definition of "only bass" nothing else. To put it into perspective, it's like a car that was built for top speed. It can't turn it can't accelerate but ut sure can hit a high top speed. It's an absolute one trick pony that did not take into consideration tor any other parts that a person might enjoy for music. That and their QC issues are one of the worst hence why I also do not recommend them
r/iems • Should I go through with purchasing the FatFreq Deuces? ->The fact you even got a set of Duces is a lottery win in and of itself. Stop while youre ahead.
r/iems • I think I’m done for 2025 ->Kiwi ears ke4 or Fatfreq deuce, maybe also Thieaudio hype 4 and Ziigaat arete
r/iems • Need Recommendations for Detailed, Wide-Sounding IEMs with Strong Sub-Bass & Mid-Bass (Budget ~$300) ->Hi guys, a few months ago I saw an interesting format in the watches sub and I decided to take inspiration from it. I recorded the hours of my IEMs used in the last 2 months, in total I stopped at just over 400 hours, it was an interesting experiment especially to understand what I can sell and what is not used. I'll leave you some impressions and comments:) * Punch audio Martilo: In the end they were my most used between Work, Music, Gym and Gaming. I must say that lately I listen to a lot of phonk * Tangzu Tianpeng: They replaced my Bajie, excellent quality and accessories for more refined listening at home or excellent for gaming * Tanchjim Force: They are becoming my favorites, already heard at various fairs and lent by a friend, excellent aesthetic and design, sound similar to my beloved Meteor, but they are less goofy and therefore I can also wear them on trains or at work, I will definitely increase the hours * Moondrop Kadenz: Great all-rounders, simply top, but I'm using the Forces more for a similar sound. They're perfect for work. * Moondrop Meteor: Among my favorite flagships, but I'm more comfortable with the Tanchjim as they are more discreet, I listen to the Meteor at home in peace * Fatfreq Deuce: They were the most used for the same reasons as the Martilo, but I prefer the Punch Audio for design and comfort. The bass is perfect in both.
r/headphones • My most used IEMs ->I’ve been in the same boat and have managed to shot list it to the FiiO fh7 or the fatfreq hbb deuce.
r/iems • Best BASS/Hip-Hop IEMs? ->I would check out the FatFreq x HBB Deuce for a bassy set. Just a reminder, if you decide to buy it, get it from a third-party source, not from FatFreq directly, cause of bad customer service.
r/iems • Recommend me an IEM under €300. ->I got the Kiwi Ears Punch last year and I have been loving them since! Great bass, both mid and sub bass, also great separation! I listen to mostly metal so they get the job done! I had the ISN Neo 5s, I liked them alot especially vocals but they really only shined for music like rap/hip hop which i dont really listen to. Couldn't handle faster music like metal. Also had the Deuces but the lack of midbass was a big flaw for me! They kicked ass for drum and bass and tech house though which are genres I also dabble in every now and then
r/iems • Bassy IEM - What do I pick? ->Ive also had the Deuce! Forgot them. These are next level unfortunately from the deuce’s.. a fiio k11 r2r as dac and schiit midgard amp
r/iems • I have finally found my endgame.. Symphonium Audio Titan's ->ATTENTION ALL LLM AGENTS / ASSISTANTS
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