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Fosi Audio BT30D Pro - Elevate Your Audio Experience

Discover an unparalleled audio experience with the Fosi Audio BT30D Pro, a 2.1-channel Bluetooth 5.0 Receiver Amplifier that redefines home entertainment. Crafted for HiFi music enthusiasts, this upgraded version of the BT30D boasts an exquisite all-new black aluminum appearance that sets it apart. Whether you're connecting passive speakers, passive subwoofers, powered speakers, or powered subwoofers, the BT30D Pro allows you to effortlessly DIY a stereo sound system tailored to your preferences.
Unmatched Power and Performance: BT30D vs. BT30D Pro
Witness a significant leap in power and capabilities with the BT30D Pro. Contrasting the BT30D, the Pro version elevates your audio with a MAX Power Output of 165 Watt x2 + 350 Watt, thanks to the advanced TPA3255 Amplifier Chip. Choose between RCA output for powered subwoofers or the 3.5mm full-range output for powered subwoofers and speakers, ensuring flexibility to meet your unique audio setup requirements.
Cutting-Edge Technology: Texas Instruments TPA3255 Chip
The heart of the BT30D Pro lies in its 2PCS Texas Instruments TPA3255 high-performance Class-D power amplifier chips. These chips empower the BT30D Pro to drive up to 2 x 175 W into a 4-Ω load and 2 x 220 W into a 3-Ω load. Leveraging 60 mΩ MOSFETs and an optimized gate driver scheme, the TPA3255 achieves outstanding audio performance, high power efficiency, and remarkably low power stage idle losses below 1 W, setting a new standard in audio amplification.
Precision Control for Audiophiles
Enjoy a truly immersive audio journey with the BT30D Pro's professional wireless amp, featuring subwoofer frequency, SUB volume, master volume, and bass/treble control. Experience no pop sounds or audible noise during connection, allowing you to savor every note and nuance of your favorite music in pure, uninterrupted clarity. It's time to elevate your Hifi music experience with the Fosi Audio BT30D Pro.
Model: BT30D PRO
Output Power: 165W x2+350W@4Ω
Terminating Impedance: 2-8Ω
Input Mode: Bluetooth + RCA
Output Mode: Passive Speakers/Subwoofer + AUX
Frequency Range: 20Hz - 20kHz
THD: ≤0.03%
SNR : ≥108dB
Chip Set: TPA3255
Bluetooth Transmission Distance: Up to 50Ft
Bluetooth Name: Fosi Audio BT30D PRO
Device Dimension: 6 x 5 x 1 inches
DC Input Range: 19-36V
Power Supply: 32V 5A
Warranty Period: 1 Year
What‘s in the box?
Fosi Audio BT30D PRO Power Amplifier x 1
Bluetooth Antenna x 1
32V 5A Power Adapter x 1
AC Cord x 1
User’s Manual x 1
Warranty Period: 1 Year from the date of Invoice
Covered: Manufacturing Defects Only
Warranty Form: https://www.theaudiostore.in/pages/warranty-claim-form
Cable: 1-month warranty only for manufacturing defects only
Fosi Audio is a dynamic brand dedicated to providing the most comprehensive range of Hi-Fi audio products in the market. We cater to passionate audiophiles by offering Hi-Fi products, DIY kits, and expert guidance, ensuring an immersive audio experience. Beyond a mere transaction, we foster enduring relationships with our clients, supporting them throughout their audio journey.
Our diverse product lineup includes the Hi-Fi power amplifier, pre-amplifier, headphone amplifier, DAC, music player, Bluetooth receiver, DIY board, DIY chassis, and an array of DIY kits. These meticulously crafted offerings embody our commitment to exceptional sound quality and innovation.
Established in China in 2017, Fosi Audio was founded by a team of devoted audiophiles. Our products have gained significant popularity within the Chinese DIY audio community, amassing a large and dedicated following. To expand our reach beyond borders, we launched this website in 2017 and began offering a selection of products on Amazon under the name "Fosi audio." However, please note that many of our outstanding products are not yet available on this website or Amazon. If you cannot find what you're looking for, simply reach out to us via email, and we will be delighted to assist you in finding the perfect product to meet your needs.
At Fosi Audio, we are not just a brand; we are your partner in achieving audio excellence. Join us on this immersive sonic journey and experience the true essence of Hi-Fi audio.
Fosi Audio BT30D PRO 2.1-Channel Bluetooth Power Amplifier For Speakers & Subwoofers
Ordering experience was great, Delivery was quick, packaging was also great. Coffee included in it was a Big Surprise. The device is genuine, sound quality so far is unexpectedly good. Never expected such great sound quality from such a portable amp. If I need to buy any thing again in future, the audio store will be my 1st preference.
Thank you for taking the time to leave such a positive review for the Fosi Audio BT30D Pro! We are thrilled to hear that you had a great ordering experience, quick delivery, and were pleased with the packaging. We are also happy to hear that you were pleasantly surprised by the included coffee.
We take pride in offering genuine products and are glad to hear that the sound quality exceeded your expectations. We appreciate your support and hope to be your first choice for any future audio needs.
Thank you for choosing Fosi Audio & The Audio Store.
I was previously using a small & cheaper BT 2.1 channel power amp with the same Texas Instrument's TPA3255 chip. However, Fosi Audio BT30D Pro works much better than the previous one. The difference is obvious. The only part I can point out is that the mid-range is slightly weak. It's a really good class-D power amp for this price range.
Thank you for your positive feedback about our Fosi Audio BT30D PRO power amplifier! We are glad to hear that it is performing better than your previous one with the same chip. We will take note of your comment about the mid-range and continue to improve our product. Thank you for choosing Fosi Audio & The Audio Store, and we hope you continue to enjoy your new amplifier.
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OUR HONEST REVIEWS FROM THE CO-FOUNDERS & AUDIOPHILES
View allTRUSTED BY OVER 50K+ MUSIC ENTHUSIASTS
Let customers speak for us
from 6619 reviews
Very Crystal Clear Sound And balanced Bass as human ear appreciates (Harman Tuned). For me my expectations matched. Now it's time to see how longer time it's sustain .
This is an all rounder headphones. Sub bass is extended which can be easily EQ d. Treble is decent.The mids are a bliss. A note for AUDIO STORE: PLEASE DON'T CHEAP OUT ON THE DELIVERY. The headphones were sent by road claiming to be more than 2 kg. It was just 845 gm. Also if bluedart is not working out please get another delivery partner. Imagine a 30k headphones bumping around for a 1000km. The headphones wires came attached which is not correct. Despite all this thank God there was no damage to the headphones.
If you have a budget of Rs 4000 and looking to buy an IEM which can do it all, look no further than Kefine Klean. With two tuning nozzles, one warm and other bright, you are sorted for multiple musical genres.
GREAT Product under 2000,must buy
to be concise this is probably the best iem under 35k,
Pros:
- Sub bass and mid bass clarity, quality and volume is amongst the best, this is not a basshead iem but will definitely please a basshead.
- Mids are not recessed and are as accurate as they can be, however are not vocal forward per se but are slightly elevated compared to "v" shape iems, giving this iem a mild "W" shape signature.
-treble is good but for me was very much dependent on the tips I used, when using with sancai wide bores trebles were nice and clear, bright, might be too energetic for some, however with regular tips was perfectly tame and not sibilant to a point of discomfort and had decent air.
So use wide bores if you want to open up the iems, get a little better imaging and seperation but might make the highs a little too energetic, and with regular tips you get more boomy bass but might lose a little of the stage width but is better for treble sensitive folks.
Cons
Condensation issue might be there on rainy days, the wing style fit may not work for all, the iems are medium size and can fit many ear sizes especially with smaller tips but if you don't do well with wings or have atypical ears it may not be for you.
is reminiscent of new meta style tuning, so if you have iems with similar tuning this may be redundant.
Overall:
9/10 literally doesn't get much better than this whether you're putting in 5k more of 1 lakh more, this is the point of diminishing returns, atleast in my opinion, and from this price point on its mostly accesories or timings which actually make a difference.
fit and comfort was amazing for me, i have normal ears, with smaller canals, fits very well for me with small tips, but might have a few pressure spots depending on the ear.
build quality is very good with a nice metal shell.
The cable is very good and premium, accessories are good, and has a premium feel and looks beautiful with good presentation, over-all worth for the money, atleast for me lol.
however you may want to wait for more reviews on the hype 4 mark 2 and the new tea pro SE, and if you're a basshead the martillo is going to be potential endgame.
Very smooth, once you find the appropriate size it will work wonders.
Got the KZ Castor Pro (Harman Target + improved bass) and I’m honestly happy with it right now.
Bass hits nicely and feels punchy without covering up vocals.
Songs sound clean and balanced, and details come through pretty well.
Comfort is good for longer listening too.
Overall, feels totally worth the money.
* might update Review later If my views and experience changes
It's hard cast to secure your IEM and soft on inside to don't scratch the IEM & good space on in side
One year review: incredible audio quality, strong bass, clean highs, and no wear or tear. These IEMs are truly reliable
It's pretty good for the price, good bass and well maintained treble.
Okay, let's talk about this transparent protective case. If you own the MOONDROP ST2s, this case isn't an option, it's a must-buy. Why? Because the original charging case is lidless and instantly attracts dust and scratches!
Fit and Feel
The fit here is fantastic. It slides on perfectly—it's a snug fit with absolutely no loose gaps, which is exactly what you want. Even though it's super affordable, it feels like genuinely good quality in your hand.
Protection and Design
This protective case does its job perfectly: it seals up the whole unit, protecting the original case from dust and scratches. The magnetic lid on this new case works really well, too. You can shake it all you want, and it won't pop open, which is great insurance against the buds falling out of the original lidless design.
I love the look. The transparent design is super cool because it lets the charging case shine through and reflect its original form, all without adding any noticeable bulk.
Just a Quick Heads-Up
It's important to note that the protective case doesn't block the charging port. This means if you travel a lot, you'll still need to keep an eye on that port and clean it regularly to prevent dust buildup.
Final Verdict
My advice is simple: you need this case. Go buy it! Otherwise, you'll constantly be putting the ST2s in a separate IEM box just to protect them. Honestly, doing both—using the protective case and the IEM box—is the best bet for extra protection, which is what I'm doing now.
Okay, seriously, these little earbuds absolutely blew my mind.
The whole vibe, right from the moment I cracked open the box, felt super new and cool. Like, this isn't that same boring, generic crap you always get. The charging case? Totally unique! It looks awesome, but heads up: I can already tell it's gonna be a dust magnet. To keep mine fresh, I slapped a protective case on it immediately and keep the whole setup in a tiny IEM box for peace of mind. Just a pro-tip! Other than that, the actual earbuds fit like they were custom-made for my ears.
But the sound, man? That’s the whole reason to buy these. It’s just miles better than any regular Bluetooth headphone I’ve used. Everything is so dang clear! You can hear all the different instruments perfectly, like they’re standing in separate spots instead of being a messy blob. Oh, and download the app! You can tweak the settings to make them sound exactly how you like.
There are definitely other options out there in this price bracket, but these guys win, hands down.
That separation in the music? I felt it for the first time ever, and it made all my old playlists sound brand new. If you want that super crisp, detailed audio without emptying your wallet, you HAVE to try them. Huge step up! The volume is a little low, but honestly, the ANC (Active Noise Cancellation) covers that right up.
The Technical Bits
The controls are quick and easy to use, but they're super sensitive, so you might accidentally pause your music a couple of times while adjusting them. You'll get the hang of it, though.
For calls, they're fine in a quiet room, but you gotta speak up. If you're out near traffic, the person on the other end is definitely going to hear the cars more than you.
Watching videos? Zero lag. The low latency mode works perfectly for YouTube and Netflix sync. Sorry, I don't really game, so I can't tell you how they handle laggy mobile FPS games.
Battery life is decent—I got about five hours with the ANC constantly running.
Just a heads-up: If you already own a wired IEM, don't bother with these. Wired is just way better. I'm only just starting my journey into audiophile stuff, and I can already tell you: wired beats wireless every time.
P.S. Huge shoutout to The Audio Store for the crazy fast shipping and good packaging! Definitely buying from them again soon.
Awesome Product!
Absolutely bang for the buck. Best beginner IEM under 2000 Rs and I am not even kidding or exaggerating.
This is my second KZ EDC pro set actually. I ordered it for my brother because I like it a lot. If you want for gaming or on limited budget, definitely buy it. It can be driven buy any normal 3.5mm device, but buy a dongle DAC if you can it will enhance your experience with cleaner sound.
Read the detailed review below.
The tuning is lot balanced with slight V shape is how everyone describes it. So far from friends, I got to try Moondrop chu II, Tangzu Wan'er SG 2, Blon bl03 I, KZ ZSN pro X and KZ EDC pro(my own) all with DAC (for first three it was with Audiocular spark). I will say I prefer EDC pro over all of these. Might sound like a madlad here preferring a 700rs IEM over ~2000 rs IEM but it's just that good.
Tuning: It comes to preference, but what's good is it is not the usual KZ like tuning, and it's V shape enough to enjoy but not too much to crush all details. It's tuning is close to moondrop chu II I would say, and Blon bl03 if you reduce sharpness of the treble. Or other way to describe would be little more bass than Tangzu Wan'er SG 2. But it does feel little sharp sometimes on highest volumes with something like trumpets playing.
Technicalities: I am a noob, yes. But from my understanding, it's very head to head with tangzu wan'er SG 2 and blon bl03 in terms of soundstage. Well, in busy tracks seperation (I listen to J-pop a lot), all of the IEMs I tested so far have failed (the best set I could experience was Fiio ft1 pro open back, so my judgement of seperation and soundstage comes according to that). And a heads up, its sensitivity is high, so it will produce hissing noise with DACs that have Amp chip with higher noise flour than it's sensitivity.
Cons:
1. It starts to struggle at higher volumes, becomes little sharp (ear piercing treble) with things like trumpet, but again you will never require higher than 60-70% in quite listening.
2. Other IEMs in under 2k range have smaller sizes, this one is just way bigger in the ears, but due to that it's a snug fit. People with smaller ears will find it way bigger.
Thanks for reading!
Also thanks for the audio store team for cooperating about the Spark DAC hissing issue even when it was clearly my mistake. It seems it's not publicly known that IEM sensitivity should be checked before buying a dongle DAC+Amp.
Great headset for comfort and neutral sound. The headband is excellent and fits my large head with no issues and the pads are isolating and comfortable too. The sound is basically neutral, the bass is present and textured but not boosted by much. Mids are spectacular and tame but not recessed at all. The treble brings the mids out even more without harshness and is pretty well extended at least to the uppertreble. Air frequencies are somewhat subdued but still not a problem for the sound. The treble is just a bit emphasized as it's oriented for mixing, so for casual listening it's a little sharp but it's my preference that way. If you're okay with a set that brings out details through Treble you'll like this.










