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Description
Dual-Mode Versatility
Experience the next level of audio versatility with the Fosi Audio ZA3 Balanced Stereo Amplifier. This innovative mini amplifier seamlessly switches between stereo and mono modes, offering a robust 155W output in stereo and a staggering 235W in mono. Pair two ZA3 units in mono configuration for a powerful audio system, elevating your listening experience to new heights.
Rich Connectivity
The ZA3 introduces a new era of connectivity with its balanced input and trigger-in features. The balanced combo audio signal input connector supports both XLR and 1/4" TRS plugs, minimizing interference and reducing the noise floor. The 12V trigger-in connector enables effortless synchronization with other devices, simplifying the on/off process without individual operations.
Audiophile-Grade Components
Immerse yourself in unparalleled audio quality with the Fosi Audio ZA3. This amplifier delivers exceptional clarity and low distortion, featuring the TPA3255 high-end Class-D amp chip, Japanese NCC, ELNA, German WIMA capacitors, and Japanese Sumida inductors. With a SINAD rating of up to 89dB, an SNR of up to 106dB, and a low noise floor of only 150μV, the ZA3 sets a new standard for audiophile-grade components.
Advanced Heat Dissipation
Built on V3's groundbreaking heat dissipation design, the ZA3 goes even further with an upgraded cooling system. The larger chassis, side vents, and added dust covers ensure improved ventilation, resulting in sustained and stable high-power output. Enjoy uninterrupted audio performance without compromising on thermal efficiency.
Enhanced Scalable Fun
Customize your audio experience with the ZA3's op-amp rolling feature. This amplifier has five swappable op-amps for left and right channel outputs, balanced input, and subwoofer output. Experiment with compatible DIP8 dual op-amps like Sparkos SS3602, MUSES02, OPA2134PA, OP249, AD827, RM4558, LM4562, LME49720HA, and more to fine-tune your sound to perfection.
Customer Reviews
This mini-amplifier from Fosi Audio Packs quite a punch, relative to its size, especially with the subwoofer preout. Excellent value for money, sturdy build quality and outstanding performance. I'm using the ZA3 to power my rear bookshelf speakers in a 5.1 configuration-- Main Anthem power amp for my fronts and center, ZA3 for the rear through the Anthem preamplifier--Great synergy, Great Buy, God for It!
Thank you for your positive review of the Fosi Audio ZA3 Balanced Stereo Amplifier! We are glad to hear that you are enjoying the power and performance of this mini-amplifier, especially with the added subwoofer preout. We take pride in providing excellent value for money and sturdy build quality. Thank you for choosing Fosi Audio & The Audio Store, and we hope you continue to enjoy your setup with our ZA3 amplifier. Keep on rockin'!
Best experience of sound amplification with ease of use and very good volume control. Compact size helps in desired output replacing Bulky traditional amplifiers - Best option for Home Audio along with Bookshelf speakers.
Thank you for your positive review of the Fosi Audio ZA3 Balanced Stereo Amplifier! We are thrilled to hear that you had the best experience with our product, especially with its ease of use and great volume control. We are also glad that its compact size was able to replace bulky traditional amplifiers for your home audio setup. Thank you for choosing Fosi Audio and we hope you continue to enjoy your amplifier with your bookshelf speakers.
I bought one ZA3 and I felt both happy and sad - I had avoided class D like the plague till date for obvious reasons and I felt like a fool for the same. I was impressed with the clarity straight out of the box and ended up ordering one more box to use each as a mini lock for my system. The low end is good and quite defined, the upper registers definitely are good, but could be better. May try and get a couple of sparkos op amps and see if it improves it. For the money paid for biamping, it definitely sounds like a great option in lieu of AB class amps. It costs just 50% of entry level amps, but definitely offer more power and quality as compared to those amps. The QC control and build quality seems solid. And the foot print it occupies is rather small. I can look at this amps performance and say confidently that cheaper non hypex class D is here now and it’s here to stay.
Thank you for taking the time to leave a review for the Fosi Audio ZA3 Balanced Stereo Amplifier. We are thrilled to hear that you are impressed with its clarity and power, and that you have even ordered an additional one for your system. We understand your hesitation with class D amplifiers, but we are glad to hear that our product has changed your mind. We appreciate your suggestion for trying out different op amps and we are confident that Fosi amplifier will continue to offer great performance at a fraction of the cost of other options. Thank you for your support and for choosing Fosi Audio & The Audio Store. Happy listening!
Fosi ZA3 Good product for using power amp. I have connected with my AVR through RCA pre out for L&R channels.
Thank you for leaving a review for the Fosi Audio ZA3 Balanced Stereo Amplifier. We're glad to hear that it's working well for you as a power amp and that you were able to easily connect it to your AVR through the RCA pre out. We appreciate your feedback and hope you continue to enjoy your audio experience with our product.
Its good. Audio quality is too good after using this Fosi audio Za3 amplifier . It is in good budget also with top quality.
Thank you for taking the time to leave such a positive review! We are thrilled to hear that you are enjoying the audio quality and budget-friendly price of our Fosi Audio ZA3 amplifier. It's always great to hear feedback from satisfied customers like you. Thank you for choosing The Audio Store!
Will replace very expensive and established amplifier brands. I have used them as monoblocks with a tube preamp with my quadral m4 tower speakers and it's fabulous sound overall. Well done fosi
Thank you for your kind words and for sharing your positive experience with our Fosi Audio ZA3 amplifier. We are glad to hear that it has exceeded your expectations and that it has been able to replace more expensive brands. Thank you for choosing The Audio Store.
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Let customers speak for us
It's an interesting product. I like all the tip options in this pack. It's a good beginner pack to know how each tip material can affect the sound quality. All the tip material & quality are good. The silicone tips & foam tips in the pack are good, like those stock tips we get with IEM. But the surprising tips are the latex tip & the hybrid foam tip. Although the latex tip feels a little rubbery in feel & is a dust magnet, but it's very comfortable, provides a good seal and does enhance bass & treble response slightly. And for the hybrid tip, it's like best of both worlds. It gives the comfort of a silicone tip as well as provides the seal of a foam tip. I'm not a big fan of foam tip in general because of how they feel in ear & it's very difficult to put them in the ear, but these hybrid tips removed all those problems for me.
This is one of the best modular cables I have ever seen in this price range. Microphonic is there as the nylon type of material is used for wrapping the cable. But microphonic is very minimal compared to other similar cable I have used. But, once the music starts playing, the microphonic would be gone. connector quality is very premium, on both the 3.5 / 4.4 termination as well as at 2-pin connector end. I love how easy is to replace the 3.5 & 4.4 end. It's highly recommended if you are looking for any premium modular cable on budget. It's one of my favorite modular cables along with the Moondrop aria 2's stock modular cable.
Sounds exactly like the Salnotes Zero with a bit more bass. Has that same Harman curve with upper midrange bump and reduced lower mids making male vocals sound thin. Good resolution/detail and treble is perfectly done. Fit is good and I like that these are very light.
I have own onix aplha as a dac and this is definitely a upgrade in that regards
From Blon bl2 to BGVP DN2
The jump on dunu was really worth it
Almost every genre songs this IEM drive at another level of dept n separation
Only flaw i could pin point some jpop heavy electric or high pinch voice of singers was little intolerable but other than it skillet and every other genre it nail it..
Accesories are another level really feel like worth the price and best customer care...
Tried every format from flac mqa to dsd . movies or series or anime . this earphone r all in one.
Bass timing silent timing Treble timing is all so perfectly tune (tried on LGV50)
If you are looking for a pair of headphones that would be your end game on a budget, then look no further, Edition XS is the way to go.
I have been using these for about 2 years and finally I can say, these cans a robust, dynamic and neutral to slightly bright.
But it also packs a punchy bass and has a good soundstage.
All you need is a pair of Edition XS and further you can keep leveling up the sound quality by upgrading cables to balanced ones, getting good DAC/AMPS and also modding the cans with new filters and grill.
Pros:
1. Sound is excellent for the price. I would say moondrop chu level sound quality. It follows the harman target with a little but turned down treble. Many people find the harman target a bit harsh at the top end. But this solves the issue.
2. I never had connectivity issues. Pairing was easy. As soon as I bring out the earbuds from the case, the buds automatically connects to my android phone.
Cons
1. App could be better. Obviously the app and other functionality won't be at the level of other mainstream tws like bose, samsung etc.
2. The fit. As someone who mostly uses wired iems. The tws does not feel as comfortable as the iems. For my ears, it's only comfortable for an hour or so. After that, it gets really uncomfortable.
I have been through some online videos/reviews before this purchase. My shortlist were, Moondrop Chu II, KZ Castor Pro, Wan'er SG. Audio Store was kind enough to provide demo of these to compare. Also Mr. Pritam shared valuable inputs on differences between my selected comparisons.
Very happy with the Tangzu Wan'er SG's output, everytime I listen to some of my old fav bolly songs it generates smile. Guess using it day by day increasing some sort of details or maybe I am getting use to. Best for listening for longer duration without fatigue. Bassheads may find it irrelevant to their taste. Over-all best Balanced tune IEM I must say which has some spark and doesn't feel boaring.
In the realm of audiophile excellence, where sound transcends mere listening and becomes an immersive journey, the Roseselsa Distant Mountain headphones emerge as a beacon of luxury and precision. Marrying vintage aesthetics with cutting-edge technology, these headphones offer a sublime auditory experience that caters to the most discerning of listeners.
Design and Build Quality
The Distant Mountain captivates with its retro-inspired design, reminiscent of the golden age of personal audio. The headband, crafted from solid stainless steel and adorned with genuine lambskin, ensures both durability and unparalleled comfort. The coaxial CNC-machined body exudes a high-gloss finish, presenting an extraordinary high-end texture that is both versatile and fashionable. 
Sound Performance
At the heart of the Distant Mountain lies an innovative 40mm composite topological diaphragm. This redesigned dome and corrugated ring deliver crisp, transparent treble and profound, surging bass. Enhanced by neodymium super magnets and an acoustic structure dedicated to small-sized headsets, the Distant Mountain presents richer sound details and a more natural treble extension, immersing the listener in melodious music. 
Comfort and Usability
The sponge ear pads are designed with both softness and breathability in mind, ensuring prolonged listening sessions remain comfortable. The headband supports fine length adjustments, with clearly visible scales to alleviate any concerns about symmetry. The inclusion of a stranded-free 5N single crystal copper IEM cable, coupled with a detachable MMCX design, offers high playability and customization for the user. 
Conclusion
The Roseselsa Distant Mountain is a testament to superb build quality and exceptional sound performance. Its unique tuning direction, reminiscent of high-fidelity in-ear monitors, combined with its luxurious design, makes it a standout choice for audiophiles seeking both style and substance. While it may require amplification to truly shine and could benefit from thicker earpads for optimal comfort, its value proposition remains compelling. For those who appreciate a blend of retro aesthetics and modern audio excellence, the Distant Mountain is an unrivaled choice. 
In the grand symphony of high-fidelity audio equipment, the Roseselsa Distant Mountain plays its notes , offering a professional and luxurious listening experience that is both nostalgic and forward-thinking.
I was not expecting much but this IEM sounds really good. If feels like a much more expensive IEM. The convenience thanks to the USB-C connection is great. I am able to use it on my phone, ipad and laptop. Gonna get some and gift some friends. This is a great gifting IEM / starter IEM !!!
I love the compatibility and the bill quality of the AUDIOCULAR d07, it works well with my samsung m53, . I also liked that u provide a case along with it , 😉
Good Sound Quality. Bass Treble Mid Too God Under 2k Price, Lookwise Good & Ear Fit & Gaming Experience To Good. & clear Sound Sense.
Earphone Case Too Good 👍 I like it.
Fast Delivery in 2 day delivery In My Address.
This is a solid technical iem with a very neutral tuning. Its a keeper iem for those who already have a collection of somewhat coluored or tasteful sounding iems under 10k .
Increased the volume as well as clarity of audio.
Thanks to the audio store for a quick delivery
This was my first experience with The Audiostore and it was welcoming. Happy with the service provided and customised suggestions as per need. Looking forward to buy next one. Thanks.
