As for the feed to your sub, I am not sure! Dec 20, 2023 · Overall, it sounds pretty good, but a/b-ing with the RA150, the Fosi ZA3 sounds “wetter,” while the Alesis definitely has a drier, crisper sound. The only concession to form appears to be a series of holes on top of the chassis, which form a flower In any case, I tested the ZA3 as an integrated amp in comparison with its brother V3 and then the pair of mono'ed ZA3s compared with other power amplifiers, in particular a pair of ZeroZone IRS2092 Class D monoblocks. This improvement makes it easier for everyone to integrate and manage their HiFi audio systems, enhancing your overall experience. The bass and midrange is richer sounding while the treble is a little less bright. Feb 10, 2024 · You can buy 2 for only a few dollars more than the za3. The Fosi Audio ZA3 is an impressive amplifier, offering high-quality sound, versatile features, and efficient operation. Nov 18, 2023. Update 2: Removed all unused opamps andwow! This immediately made a big difference, much bigger than replacing the second pair of opamps for xlr. Fosi ZA3 + Sparkos Op-amp - The real deal - Don't miss out !!!Interested in Sparkos Opamps - visit www. just going by specs . This refinement extended into the midrange, creating a more spacious and cleaner backdrop Sparky14-1982. Dec 11, 2023 · The Fosi Audio ZA3 is an impressive amplifier, offering high-quality sound, versatile features, and efficient operation. Using a dB meter, I wanted to compare volume variance between the two amps, XLR and RCA inputs and a couple pairs speakers but found something unexpected (to me anyway). Oct 30, 2023 · In home use, with short cables connecting source to amp, there will almost never be an audible noise benefit from balanced inputs. Dec 20, 2023 · On top of that, they are highly affordable and make high end audio accessible to many. Dec 20, 2023 · Dec 20, 2023. Nov 15, 2023 · + Runs cooler (or barely warm) like Fosi ZA3 with Fosi 48v PSU ~ 50v smoothing caps, although I have had no issues with 48v PSU but many would be skeptical about 48v PSU with this amplifier + Aux or line out, can be used with an active subwoofer with RCA input, and/or stereo signal input to another amplifier Dec 22, 2023 · No argument on some of the demerits listed for the Fosi Audio ZA3. No phono stage. In fact through the entire power range, right up until 200w, mono mode has a much more stable and better SINAD. I'm absolutely delighted by this amp. This spirit of transformation is evident in every product we create, each one a symbol Oct 10, 2023 · I currently have a sound devices USB pre 2 between a wiim mini and the ZA3. 80 each if buying new. The red plug represents the right channel, while the white plug Engineered for the audiophile who needs flexibility, the Fosi ZA3 amplifier boasts dual-mode capability—offering both stereo and mono outputs for diverse audio setups. 5amp psu and opamps rolled from NE5532 (people say they are fake anyways) to OPA1656. If you're wondering why I am interested in using a preamp with it if it already has volume is because I want to you this in my Fosi Audio ZA3 Balanced Stereo Amplifier Home Audio 2CH Mono Amp with TPA3255 Chip. Audiophile-Grade Components: The ZA3 features the TPA3255 high-end Class-D amp chip and utilizes premium Japanese NCC, ELNA, and German WIMA capacitors, and Japanese Sumida inductors for exceptional audio quality. System 1 (house) = CD player in to SMSL D6-S via RCA Coax AND Wiim Mini connected to SMSL D6-S via Optical Cable (Toslink). audiophonics. 5dB allowing him to keep the volume control lower on his preamp. Probably due to the high input gain on the ZA3 that @amirm mentioned. With a cross over imbedded in the DAC, or the sub out in the amp, you can alleviate the stress the lower frequencies place on both the amp and the main speakers. No muting. 99 with 48 volt power supply. Oct 10, 2023 · Fosi Audio's First Dual-Mode Balanced Amplifier ZA3 I'm waiting for a fully bridgeable PFFB implementation from these guys, which I'd like to use as monoblocks into some Wharfedale Lintons. And as a result my subwoofers play louder, deeper, and much cleaner. Jun 12, 2022 · I also like the audio taper of the Fosi like the V3 I have, as the A300 has the chintzy linear non-audio rotary dial, and basic remote for volume. Jul 28, 2023 · The Fosi Audio V3 is the first device from the company to feature a new, more modern design style. Feb 10, 2024 · You could make the hi-pass adjustable, a bit less simple, from 0hz to, say, 150hz, which should handle pretty much anything, from no hi-pass crossover to 150hz; either continuous, or 4-6 different set frequencies. •Output: Speaker Out, Sub Out. It can also directly replace WE-403A/403B/EF95 and ordinary 5654. My plan is to leave it on overnight and keep it in stock configuration through Friday evening, then install the Burr Brown OPA 2135PA op-amps and repeat the process. Well, I have a Fosi v3 on the slow boat, so I can't comment specifically on that one. Original box, power supply, packaging included with each ZA3. Oct 10, 2023 · Fosi Audio's First Dual-Mode Balanced Amplifier ZA3. Dec 31, 2023 · New member. I'm using balanced Jacks via the XLR inputs. nopiano. Speakers: Kef Q150's. Jan 13, 2024 · FOSI AUDIO ZA3 Stereo / Mono Amplifier. Do I need to run a y shaped rca-rca cable with single ended rca at the low level input on the subwoofer end and one of the two RCA ended limbs of the y going to each of the sub outs in Each ZA3 has two SS3602 Op Amps - one for the left and one for right channel. Fosi has the best price I have seem on Muses02s at $52 a pair. Thoughts? Apr 19, 2024 · I have my 2x ZA3's operating in mono mode and both are connected using XLR cables. It’s potentially 20-30watts more power measured at 1%thd. I have a pair of Sparkos SS3602. #353. 99 on Fosi’s website and Amazon, but that’s with a 32v power supply. All of these things (except remote) were standard on ~USD$100 integrated amplifiers in the 70s/80s/90s and into the 2000s. It's harmless and allows use of a passive sub driven by a separate amp that doesn't have its own low-pass filter -- e. " Feb 10, 2024 · This is a review and detailed measurements of the Fosi Audio ZA3 stereo amplifier with balanced XLR inputs. USB pre 2 specs say. The sound became much softer, adding width and openness to the sound stage. The Fosi Audio ZA3 has a little more heft to it than similarly-priced Topping PA3s amplifier. So for $40 more with the ZA3 you get balanced inputs, a sub out, quasi-mono mode, a more attractive case with better cooling, and a 12v trigger in. Apr 24, 2024 · Unlike previous Fosi Audio Amplifiers that included ‘monoblock’ options like the Fosi Audio ZA3 (and the similar Aiyima A07 MAX) the V3 Mono is a pure monoblock, power amplifier. Fosi Audio ZA3: https://bit. Fosi Audio ZA3 Features. •Input: RCA, XLR. Oct 10, 2023 · My Topping PA5 is still firing up and I am on 'day 27' of using a Fosi Audio ZA3 speaker amplifier. its Amp won't measure as good as a ZA3 or A07 MAX (but it will be close I think) its built in DAC won't be as good as the WiiM Pro Plus one (or the SU-1) and can't be used externally and there isn't any option for Mono block setup etc but the Jan 2, 2024 · Sunday at 3:06 AM. Vacuum Tubes 7-Pin 5654W Upgrade for 6AK5 6J1 6J1P EF95 6k4 replacement tubes. The initial batch of ZA3 was manufactured, producing around 2,000 units, with one reported issue. In mono mode at 100w, you get -78dB SINAD. SMSL-D6-S then feeds ZA3 via short XLR cables. I believe Fosi Audio are preparing a separate Pre-amp Apr 24, 2024 · Fosi, and all manufacturers, release products that are meant to be upgraded with the exception of those that make simple products like nails, screws, hammers, wrenches etc. An unfiltered pre out is more flexible, subwoofers have their own filter anyway. This is a quick and easy tutorial on how to replace the OP Amps inside the Fosi Audio ZA3 amplifier. Dirac Live with Bass Control (active crossover L+R+2Subs) Fosi Audio ZA3 Balanced Stereo Amplifier Home Audio 2CH Mono Amp with TPA3255 Chip. I'm running 2 ZA3s in mono mode and would like to swap out the op amps. After managing to open up the chassis, I noted the orientation of the stock TI NE5532 op amps at the TPA3255 Class D amp's inputs. 5 db in the top octave, the 10k-20khz range, in the cheaper of those two amps, if the speaker impedance is 8ohms, right? And that is why the Wharfdale is a problem for the Oct 10, 2023 · They say the amplifier input impedance should be at a minimum 10X the output impedance of the preamplifier. The response can vary by +1db/-0. rhing, Jan 14, 2024. Can I just change the right sides (R-OPAMP socket) on each ZA3 or do I need to change both left and right on each ZA3? Dec 20, 2023 · IMO, moving from the ZA3 to V3 Monos won't provide a large enough boost in SQ to make it worthwhile. This is when I will probably upgrade. 01:26 Use XLR input in mono mode. a second ZA3 in mono mode. Like x 4. That if you don't like the stock Fosi, you can make it sound "better" with different op-amps. Feb 18, 2024. And this upgrade was absolutely free. For those who want to do just that, it is difficult selecting which op amps to “roll with”. Apr 27, 2024 · The Fosi Audio ZA3 is a compact form factor balanced Class D amplifier that can run as a single unit in stereo mode or as part of a dual amp setup in mono mode. #20. No signal routing options. This works really well and sounds great, however, the mains are playing at full range, as is the Buckeye amp driving them. A sugestion at @ Fosi Audio: Feb 10, 2024 · Feb 18, 2024. doug s. #243. Dec 11, 2023 · This small, compact and powerful Fosi Audio ZA3 integrated amplifier has the particularity of being able to operate in both stereo and mono mode. www. Nov 15, 2023 · Then WiiM Amp is a good allrounder - not sure it will measure as well as the individual components e. Dec 18, 2023 · Your go-to resource for unbiased opinions, detailed assessments, and user experiences about Fosi Audio products. This small, compact and powerful Fosi Audio ZA3 integrated amplifier has the particularity of being able to operate in both stereo and mono mode. Better implementation (more money) I think I understand. The gain is also higher in mono mode by 1. In stereo mode, it delivers a robust output of up to 155W, while in mono mode, the power soars to a maximum of 235W. Jan 18, 2024 · I'll definitely try it in the next few days. All this happens as some TPA3255 boards start to measure really well here at ASR (for instance: 3e audio TPA3255 260-2-29A). Replies. Otherwise no, nothing will change. #23. Feb 10, 2024 · Feb 11, 2024. • 9 mo. Each package contains a pair of fully tested and matched military version vintage US-manufactured JAN 5654W vacuum tubes(2 PCS). OldTimer said: $150 za3 vs $70 v3. Mac mini --> Dirac Live --> Peachtree Audio 'Carina' integrated amplifier --> Revel F206 Feb 10, 2024 · Personally, I do it the other way around like how we tune and setup car audio back in the days: 1)set the gain on amplifier to the lowest level in the beginning. Dec 11, 2023 · Summary. No tone defeat. 01:00 Mono mode. We are not content with just meeting the existing market standards; our vision is to actively shape and elevate the HiFi experience. The A07, just like the Fosi v3, comes with NE5532 stock. Click to expand So is a power brick, which will not be supplied with a V3 at $70 ($80-90 is more typical AFAICT) -- the comparison ought to be with a ZA3 alone, not one with a bundled 48V/5A power brick at $150. Dec 20, 2023 · I installed a pair of Muses02 op amps I bought from Fosi's website into the ZA3 and have been running them for a couple of weeks. Greetings! We're happy to share with ASR members that our first dual-mode balanced amplifier ZA3 is about to be released! Here are some details about this amp. #152. Oct 10, 2023 · Based on the values published at the Fosi site, Fosi ZA3 amplifier will be a worse amplifier than the Fosi V3. Only two inputs- LOL what a joke. Fosi Audio Team. It integrates two TI TPA3255 amplifier chips mounted in DIP8, enabling it to deliver power up to 2x150W or 1x240W under 4Ω. 1,441. depends on the amp your using fosi makes a ton , assuming its the TB10D (upgraded version) with a tpa3255 it will just give you headroom that most people wont need. Jimi Floyd said: I can't understand the filtered sub out. Its ability to run cool, coupled with its mono block support and balanced input options, positions it as a competitive option in the audiophile market. The front panel of the amp has 2 switches and a big orange metallic knob while the back panel holds all I/O connectors. 2)play a full spectrum sine wave sweep, on loop. The technical specifications, for which I refer to the Fosi Audio official page, claim a power of 180 watts per channel on 4Ω Aug 20, 2023 · 2. The Fosi Audio ZA3 has a clean and modern design with a rectangular and short form factor. Feb 1, 2024 · The Fosi Audio ZA3 is a compact integrated class D amplifier that can operate in both stereo and mono mode. Dec 20, 2023 · Overall, it sounds pretty good, but a/b-ing with the RA150, the Fosi ZA3 sounds “wetter,” while the Alesis definitely has a drier, crisper sound. And advise which V3 op amps to roll, as Feb 16, 2024 · The RCA out goes to a 12" sub with the cross over set at 65Hz. However, it’s not double the power, or anything like that. The reason I keep using “potentially” is explained in my previous post #366 in this thread. In effect mirroring how a pair of rca's would be connected. Feb 10, 2024 · For example, at 100w of output, stereo mode has -74dB SINAD. It is equipped with two Texas Instruments TPA3255 amplifier chips which allows it to output max power up to 2×155 W (in stereo mode) or 1×235 W (mono mode) @4 Ohm load with a 48V/5A power supply unit. It features a balanced stereo input on XLR in addition to its stereo RCA Fosi Audio 48V 5A 10A Power Supply Adapter for TB10D, BT20A PRO,V3,ZA3. g. No processor loops. I will include the original stock Op Amps as well. It features a balanced stereo input on XLR in addition to its stereo RCA input Feb 10, 2024 · This is a review and detailed measurements of the Fosi Audio ZA3 stereo amplifier with balanced XLR inputs. TPA3255 features an advanced integrated feedback design and proprietary high Jan 4, 2024 · Volume matched demo between the:- Fosi ZA3 Dual Mono with all stock NE5532 OpAmps- Fosi ZA3 Dual Mono with SparkOS SS3602 in the L/R + NE5532 in Sub OpAmp So Feb 10, 2024 · This is a review and detailed measurements of the Fosi Audio ZA3 stereo amplifier with balanced XLR inputs. Toni Mas said: I don't agree, because in order to get a flatter in room response, some fine tuned mismatch between high pass and low pass is much better. Fosi Audio TB10D is an analog input (RCA) Class-D audio amplifier that easy to install to build your home audio sound system. Feb 18, 2024 · At Fosi Audio, "Redefining" is more than just a word; it’s our commitment to innovation and revolution in the HiFi sector. The SS3602 op amps are $79. Dec 20, 2023 · The ZA3 represents tremendous value for money and has some outstanding features like support for subwoofer, trigger input for the price, coupled with a really nice design and excellent measurements this is a top pragmatic choice. i have a a07 (tpa3255 also) with 48v 7. Fosi Audio - 32V 5A - Model: SW202732005000D- ok, fidelity in hearing, low power. Following your valuable suggestions, we've enhanced the Pre-Out circuit. 5654W vacuum tubes for T20, P1, P2, Box X2, Box X4 audio devices. May 20, 2024 · AMP: Fosi ZA3 in stereo. sparkoslabs. I've been using a ZA3 for all of 5 hours, to date, in a secondary location where critical listening isn't practical. The amplifier has really dressed up from its earlier origins of common enclosures in budget class amplifiers. Feb 10, 2024 · The Fosi builds volume quickly when connected to my CD player's line level outputs. I’m currently seeing it for $89. Once Fosi Audio comes out with a 48V-10A power supply, that would make an excellent upgrade for expanding headroom. If you hadn't already ordered the Fosi, I'd suggest you take the total amount you want to spend - say, the Fosi + op-amp upgrade - and then spend that amount on a different amp you don't have to "upgrade. #225. $59. This should also boost the value of the ZA3 amp as a PBTL monobloc amplifier for driving lower impedance loads. Kickstarter puts the Stereo 4 Ohm Output as 180w X2 @1%, and the Mono as 240 X1. Also, to me the ZA3 with Sparkos' appear to draw a soundstage with more depth than with the stock opamps. It looks a lot more "beefy" and substantial. MacBook Pro -> Topping DM7 8-Channel DAC Balanced -> Hypex NC252MP (Buckey AMP) Kef R11 with 2xSubs. So, two ZA3 in Mono will output less than 2dB higher volume than one ZA3/V3 in stereo. comNeed to get the Fosi Amp - https://fosi Apr 24, 2024 · Unlike previous Fosi Audio Amplifiers that included ‘monoblock’ options like the Fosi Audio ZA3 (and the similar Aiyima A07 MAX) the V3 Mono is a pure monoblock, power amplifier. The enhanced tightness in the bass brought forth a newfound level of detail and definition, without compromising depth or reach. #1. #5. It’s $109. ly/41Dg7IoSparkos Labs SS360 Feb 10, 2024 · This is a review and detailed measurements of the Fosi Audio ZA3 stereo amplifier with balanced XLR inputs. Dec 31, 2023. Insert the RCA or XLR audio cables into the corresponding left and right channels on the ZA3. Oct 3, 2023 · Regarding the power supply, I personally tested the PSP on Fosi V3 and BT20A PRO, with opa Muses02 and sparkos SS3602 respectively, tested when powered with: Fosi Audio - 48V 5A - Model: JYH23Z-4800500-has stability and performance, good power. •Amp Chip: Texas Instrument TPA3255. With a SINAD rating of up to 89dB, an SNR of up to 106dB, and a low noise floor of only 150μV, it delivers exceptional clarity and Feb 10, 2024 · Yes the V3 is cheaper. Amplifier Type: Class D : Amplifier Channels: 2 : Amplifier Power: Stereo: 180Wx2 @4 ohms, Mono: 235Wx1 @4 ohms : Fosi Audio ZA3 Connections. Aug 3, 2019 · 68. My house system is doing that well. I was lucky to receive my ZA3 early via their Kickstarter program with the 48V power supply Jun 29, 2024 · 00:00 Intro. Oct 10, 2023 · Dual-Mode Innovation: This new generation mini amplifier offers both stereo and mono modes, and adapts flexibly to your diverse needs, allowing seamless mode switching. fr. Oct 10, 2023 · The frequency response is not independent of the impedance at high frequencies. 2024 Version. Last edited: Feb 23, 2024. My preamp has a higher output impedance and so I'm trying to find out what the input impedance of the ZA3 is. Feb 19, 2024 · Or you could use the speaker level inputs so from Both ZA3's into the sub and then to your speakers. 02:16 Use the subwoofer in stereo mode. In a couple of years there will be quite a few small class D amps with pre-amp ability, wifi streaming, hdmi eARC, etc. 99 with a 48v power supply. •Mode: Stereo, Mono. They are an appreciable upgrade from the stock op amps that came with the it. The mid range is fuller, and the sub out is much better at providing a signal to my sub amp. 3)slowly turn up the volume on the source/preamp/DAC to about 90%, leave the last 10% as headroom. It replaced a (still working) Topping PA5. So, it requires a pre-amp for Volume control, and you need 2 x V3 Mono’s for stereo, one for each speaker. And yes you are correct, you just connect the Lt and Rt cables from your source to only the Rt inputs on each amp. MAX Power Output up to 600Watts. This quite tiny amplifier is Dec 18, 2023 · The Fosi Audio ZA3 is an impressive amplifier, offering high-quality sound, versatile features, and efficient operation. Both the Fosi V3 and the Aiyima 07Max (and Feb 10, 2024 · When using this cheap amp with RCA and without using the sub you only add $ 160 to the initial purchase price ($150) effectively doubling its price and you get the exact same performance but of course the owner knows he used the best opamps not realizing the class-D amp determines the sound. This small Fosi Audio ZA3 integrated amplifier has the particularity of being able to operate in both stereo and mono mode. This is the latest TPA3255 amplifier from Fosi Audio and follows on from the amazing V3. If compared with Yamaha the sound is very detailed, involving, crispy, and crystal clear. Jan 1, 2024 · It will probably come down to how safe and quiet Fosi Audio can make a higher current power supply. So jumpy-up 8 pin Op Amps for "rolling". •SINAD: 88dB. ”. Balanced XLR: +18 dBu with 100k ohm load. Feb 10, 2024 · Mar 7, 2024. Overall, the amp looks aesthetically Dec 20, 2023 · Mar 30, 2024. P. From my understanding of the product, the mono mode of the ZA3 is about as "fully bridgeable" as you can get from that chip Feb 10, 2024 · As for $100 "entry-level" integrated amps from back in the day, IIRC they were pretty much crap -- just good enough to avoid staining the reputations of their makers and way short in power and S/N compared to today's sub-$100 TPA3255 chip amps. I hope we don't have to add a poll on reliability to this thread Thanks for the update. Feb 10, 2024 · No loudness. In my first review for AudioKarma (of many I hope), I will get into the details of the new Fosi Audio ZA3 Amplifier which has just been released. 99 USD - $109. The company's ethos is all about maintaining a relationship with the customer and offering support for its products, allowing the swapping of certain internal parts within its amplifiers. Also high pass and low pass would sum flat only if subwoofer and main speakers are time aligned, or phase is also adjustable. It was sent to me by the company and costs US $149. 0 out of 0 found this helpful. Hi. The second batch, estimated to produce around 5,000 units, is scheduled for shipments on March 1st and April 10th. Question to @Fosi Audio , will you share specs/tolerances for suitable replacement op amps? Assuming there are alternatives that offer pure sonic differences. However, I have done a little OpAmp rolling on my Aiyima A07. •Mode: Stereo, Mono •Input: RCA, XLR •Output: Speaker Out, Sub Out •Amp Chip: Texas Instrument TPA3255 •SINAD: 88dB •SNR Feb 10, 2024 · Likes. Dec 20, 2023. Dec 12, 2023 · The Fosi Audio ZA3 is an impressive amplifier, offering high-quality sound, versatile features, and efficient operation. From an audio point of view, the two products are exactly equivalent, with a minimal greater instrumental quality in favor of the V3. Disadvantage is much more speaker cable is needed. Everything seems more balanced across the frequency range. In the review of the Fosi V3 (Fosi Audio V3 Amplifier Review ), Amir wrote “There are replaceable op-amps for those of you who have nothing better to do than mess with the design. Didn’t see the price for this. I also worry that my left channel is a bit quieter then the right when I up the volume higher. I might miss EQ on the ZA3 as I like E2 (SDB) on the A300, especially at very low volumes, but I can easily dial that in with Roon's DSP PEQ. Prepare your audio source device, the ZA3 amplifier, a 24V-48V power adapter, passive speakers, speaker cables (with banana plugs or bare wires), and RCA or XLR audio cables; 2. It incorporates two TI TPA3255 amplifier chips enabling it to deliver up to 2x150W or 1x240W @ 4Ω. Oct 10, 2023 · The A07Max measurements suggest that it potentially has more power output than the ZA3 when in PBTL mono mode. If those features are useful Feb 10, 2024 · But the sound stage and presence that I'm getting with the ZA3 is next level. TB10D adopts TI TPA3255 high-performance Class-D power amplifier chip enabling true premium sound quality. No remote control. Feb 10, 2024 · This is a review and detailed measurements of the Fosi Audio ZA3 stereo amplifier with balanced XLR inputs. Sep 29, 2023 · Verdict. It integrates two TI TPA3255 amplifier chips mounted in DIP8, enabling it to deliver power up to 2x150W or 1x240W @ 4Ω. The advantage of that is that your sub can filter the lows the sub handles from the signal so your speakers will have cleaner mid range. View attachment 348770. 1. I have found that Class D amps like the Fosi sound great when driving speaker loads that usually work well with pure Class A SS amps and tube amps. Substitute for 7-pin 6AK5/6AK5W/6Zh1P/6J1/6J1P tubes. I have switched around the speaker inputs and it looks like the right channel from my Fosi audio ZA3 is louder on the right output compared to the left one. Announcements, Updates and Exclusive Insights. Dec 20, 2023 · I had ordered a couple pairs of op amps from Fosi Audio to try out in the ZA3: Nisshinbo MUSES02. While previous devices adopted a more generic, classic design, the V3 is more streamlined, to the point it could be said it’s minimalistic. 00:20 Stereo mode. Whether enhancing the soundstage of your vinyl collection or powering a home cinema, the ZA3's innovative features, including its rich connectivity options and audiophile-grade May 25, 2024 · I was trying a comparison between my Fosi Audio ZA3 and SMSL AO200 amps combined with a SMSL DO300 DAC and Totem Skylight speakers. Burr Brown OPA2134. This is yet another demonstration of how a more premium casing and a higher quality aesthetic perception affects the perception of sound. I've also tried OPA2604 - little bit smoother than the NE5532. Apr 1, 2024 · Fosi v3 mono, first product video trailer: Brilliant. Jan 7, 2024 · Mar 22, 2024. #51. The SS3602 upgrade to the ZA3 offer more transients, more harmonics and fuller bass than the stock Op Amps. Oct 10, 2023 · You can see it from the image, the volume control on the Fosi is on 75% position (using as a power amp), and on Burson it's just 27 (out of 100, but vol level 60 gives full 2vrms power, so 27 out of 60) and it's already loud. Oct 10, 2023 · Greetings! We're happy to share with ASR members that our first dual-mode balanced amplifier ZA3 is about to be released! Here are some details about this amp. I think because better performance in SINAD and ZA3 has sub crossover out of the box. In conclusion, the Sparkos SS3602 dual discrete op-amps proved to be a transformative upgrade to the audio experience. ago. Feb 10, 2024 · That's the general impression on Fosi's FB page. Completely subjective two-cent perception here, but when I changed my ZA3 opamps to the Sparkos', my first impression was that these play quieter than the TI's. I have two fosi ZA3 audio amps, which I plan to run in mono configuration. Fosi Audio is excited to announce the release of its latest product, the ZA3 balanced stereo/mono amplifier, a cutting-edge addition to its high-quality audi Fosi Audio : Manufacturer Fosi Audio : Model ZA3 : Part Number ZA3 : Voltage 230 Volts : Wattage 235 watts : Batteries included No : Batteries Required No : Connector Type auxiliary, xlr : Mounting type Surface Mount : Does it contain liquid? No : Includes rechargable battery No : Manufacturer Fosi Audio Apr 7, 2024 · Fosi Audio Announces the Launch of the Next-Generation ZA3 Balanced Dual-Mode Amplifier. A. On 35 it's crazy loud. I'd also recommend 24db/octave slope. Thanks for answer! Connected through RCA-RCA to sub out Feb 10, 2024 · This is a review and detailed measurements of the Fosi Audio ZA3 stereo amplifier with balanced XLR inputs. What Fosi has done in the past 1-2 years has been great for their reputation and sales. This is night and day compared to mini's DAC but I digress Since the ZA3 can take balanced I'm using that from the USB pre 2 but I hear it overloading ZA3's balanced input since distortion is obvious. The main shell has curved edges and lateral vent grids with an orange accent beneath them. I put the ZA3 back in my system, and I am really impressed what this amp delivers. Plenty of products have short upgrade cycles. Trying to get Streaming and CD player to the ZA3's with remote volume control. I also own a REL T5/X with both high and low level inputs. In the 2024 version, it's no longer a simple pass-through interface; instead, it's controlled by the V3's power switch and volume. Balanced connection is expensive. 02:07 Use XLR input in stereo mode. 99 USD. The range of the volume knob is more gradual with lower level sources (computer built-in sound output, Apple USB-C dongle, older LG phone with quad DAC). xb nt xg le nw gx tu hs ms lm