Topping la90 audiosciencereview

Apr 11, 2023 · The LA90D/LA90 uses a 64V single power supply. 3 mm TRS, both for single-ended connections. Feb 23, 2024 Jul 14, 2023 · There is a Topping LA90 on sale at usaudiomart. It costs US $499. Apr 11, 2023 · 70. For the PA5 II it's 17. The LA90 Discrete NFCA version features the cutting-edge discrete NFCA (Nested Feedback Composite Amplifier) power amplifier circuit. Most two ways these days are 80-87dB. Tags: AMPLIFIER INTEGRATED POWER SOLID-STATE TOPPING. Can someone, ideally impartial, help us understand? (repeating myself for likely the Apr 25, 2022 · Topping marketing completely botched up the pricing. Perhaps a "new" model? No idea how Topping got CE-Zertification for EU: Power supply is connectet via C7 (shotgun). . Apr 25, 2022 · Back to the unit, you can see three balanced inputs. D. A Benchmark amplifier is driving JBL 2123 101dB/Watt mid-range drivers. The A90 is available for ordering and I am told ships by end of this month. These properties might be the reason you didn't notice with other amps May 11, 2022 · Got first info : The LA90 is using a LM3886 inside. Announcement was supposed to be a few hours from now but one of the distributor already released it so here we go. 1A-2. What I like about the Topping LA90 amplifier is zero noise (hiss) comes out of my tri-amped horns. Overdriving is avoided by an all time save max level of the input. I am running them in bridged mode with high gain. 6db tilt, but there was still a tiny difference in frequency response between L and R channels, when loaded. But to get near its envelope-pushing performance in that area, you need to spend a heck of a lot more than $800, with the notable exception of another Topping product which people similarly slammed for being “too expensive” and “underpowered. So do the Crown Com-Tech 200 amplifiers So does the NAD THX 216. Dec 26, 2023 · Main: SMSL C200, Topping pa5 II plus, Guru Audio Q10, Canton GLE90. Sep 27, 2022 · Topping A90 Discrete will set you off $599 and it was kindly provided by the fine gents of Apos Audio. Made quite a bunch of LM3886 chipamps and really liked their sound in mono chip. History is made on this day folks!"--- LA90 Review from audiosciencereview. Having 40 W amps on 100 dB speakers is like having 640 W amps on 88 dB speakers - 116 dB SPL peak. LA90 should have been priced $400-500 range. Apr 11, 2023 · Apr 14, 2023. It's pretty linear (as in, at 1. solderdude said: Volume control on the LA90 is fine (not so handy when using it as a mono block in which case an extra pre-amp or digital volume control (in or before a DAC) would be handy. (They still offer free shipping in the USA and Canada, free 45-day returns in case you don’t like it, an extra year of warranty and the lowest price guarantee). This way topping continue with the disruptions. 3dBu Max out level. Topping DX5 DAC/headphone amplifier - Mini Review. Follow us to see what competitive features it Feb 15, 2023 · With speakers that sensitive, a solid 40 wpc (which the LA90 would qualify as) should be good for quite the racket. Mac mini --> Dirac Live --> Peachtree Audio 'Carina' integrated amplifier --> Revel F206. Steven Holt, Overseas, renaudrenaud and 1 other person. But to get near its envelope-pushing performance in that area, you need to spend a heck of a lot more than $800, with the notable exception of another Topping product which people similarly slammed for being “too expensive Apr 25, 2022 · The device stays cool, air exhausted from the rear maxes at around 35C. Apr 11, 2023 · The LA90 Discrete seems to have a grounding issue and gives me an ESD as soon as I touch it, the DAC or the preamp. Apr 25, 2022 · That is a legitimate viewpoint. Its R channel had delta files vs AHB2/LA90 at similar levels as between AHB2 and LA90. com with discounts, ending in 6 days - amongst other products - Topping LA90D @ $679 (discount $120) 2 year warranty, Free shipping, tax and import duty paid - I've sent an email to find out what shipping method I have to use to qualify. This is a review and detailed measurements of the Topping Pre90 balanced and unbalanced preamplifier. Apr 25, 2022 · I am running Topping LA90 in Bridged Mono mode. Desktop: Topping MX3s,, SMSL SU-1, Guru Audio Junior+, AKG 271 Studio, Moondrop Joker Portable: Moondrop LAN, Audio Technica E40, TRUTHEAR x Crinacle ZERO Red etc TV: LG B3 77" OLED Apr 25, 2022 · There is little doubt that well-made active monitors offer the most cost effective hifi performance. 8 dB increase). This is a review and detailed measurements of the Topping D90 Balanced USB DAC with Bluetooth. 21. SPL 2control output impedance spec'd at 75 ohm. Apr 25, 2022 · The LA90's are in stereomode with at least 4 Ohm loads. 4db. Apr 25, 2022 · 41 pages and 820 comments, and only 1 member showed interest for buying this product. Apr 25, 2022 · When the temperature was measured, the windows and doors of the room were closed, the air conditioner was turned off, and the LA90 was placed alone on a workbench about 70cm high. I think the output connectors, even after fixing, added unequal amounts of output impedance. The amps have ample room for heat dissipation. A Crown Com Tech 400 amplifier drives the JBL 2226 woofers. They call it a 1-bit DAC and show this. Apr 25, 2022 · Topping LA90 Review (Integrated Amplifier) thanks for the measurements@amirm . It was sent to me by the company and costs US $800. In the first case, it is capable of delivering a power of 2x90W under 4Ω or 1x180W under 8Ω. As a result of seeing this review, I bought 3 LA90 for my 3 front Focal Kanta 2 speakers. You can purchase the TOPPING LA90 on Apos Audio. The second one worked as an amp but out of the box the lights on the front did not work. Apr 25, 2022 · No one is arguing that the noise and distortion performance the LA90 achieves is audible. Apr 11, 2023 · So sorry! ) a twin flat 'figure 8' cheapo with USA blades at the other end. BUT I interested ONLY in where is the LA90 on this graph when the music which is issued by the 4-Ohm speakers is 65-70 dB at 1m !!! Apr 25, 2022 · In the bass region where you need the most power, the impedance of the R3 is pretty low (<4 ohm from 40-60 Hz and 110-280 Hz). This is a review and detailed measurements of the new Topping A90 Discrete balanced preamplifier and headphone amplifier. The LA90 discrete version has been difficult to purchase in Korea for several months. Anyway waiting for impressions of this amp in few weeks/a month With the rise of this site in Google search rankings, this forum has been exposed to a much wider audience and gained many new members Apr 3, 2019 · Sounds like Topping is pandering to audiphool trendiness. It was kindly sent to me by the company. Apr 25, 2022 · This is a review and detailed measurements of the Topping LA90 integrated amplifier. My third one seems to be working okay so far. May 23, 2022. I asked for confirmation on the reason and received an answer. It is powering Focal Kanta 2 stand mount and center loudspeakers. It replaced my much more powerful ATI527NC. These are delta sigma designs still, not R2R necessarily. The speakers are located far away from the walls and corners of the room and do not create interference. You can also operate LA90 in bridged mono mode. ) If Bryston posted BP-17 output impedance, it's well Apr 25, 2022 · No clipping, never a need to crank it to eleven. Apr 11, 2023 · Il est très difficile de trouver un Topping LA90 Discrete dans l'Union européenne. Thanks DT The LA90 does run a little warmer to the touch of my hand, nowhere near hot. 6. Apr 25, 2022 · Topping LA90 Review (Integrated Amplifier) www. No further reviews of their products and no recommendations should be made. It was sent to me by the company and costs US $799. Both the Topping and SP400 offer more versatility and do not require a speaker to headphone connector and are cheaper. Desktop: MiniDSP Flex HT, into two (for now) Genelec 8020D and two SVS-SB1000. May 12, 2023. linear cone excursions. It is delivered in a nice box with quite significant texture. com RCL162 Member. -Topping D70, Monoprice THX 887, Dan Clark Aeon Open, Senn HD 58X, Focal Elex. On scrutiny of the LA90 in reviews etc I couldn't deal with the confusion of an integrated amp that can become a mono power amp for, predominantly, speakers rated at 8 ohms. Without the LA90 using the A90 as a headphone amp there is no issue. But, in mono chip its power always was quite enough for 86db speakers. Prefered it in dual triple triple chips per channel as it was more stable and efficient. Should easily drive 2 LA90s in parallel. Apr 11, 2023 · Wow the LA90 discrete is on sale for $577 at Shenzen Audio! I just bought a second one because my power hungry Revel M106 don't seem satisfied with one. Apr 25, 2022 · The L90 is an integrated amp so does not need to be driven by a control (pre)-amp. This morning I received an email from Shenzhenaudio. Jun 12, 2023. While I like the red accent on the volume control knob, the contrast is low on the labels to read them easily. My other amps sound great but when I add tubes in the pre-amp the get a little too 'warm' sounding. It was sent to me by the company and costs US $499. Any decent output should be able to drive 10k. #500. This in my opinion. Apr 11, 2023 · This is a review and detailed measurements of the Topping LA90 Discrete balanced stereo amplifier. No one is arguing that the noise and distortion performance the LA90 achieves is audible. The second LA90 drives a pair of 10 Inch jbl2123, 101 dB’s at 1 watt at 1 meter mid-ranges. The A90 is one of the best executions of the Topping Apr 11, 2023 · Now, I seem to understand that RCA and Balanced (TRS, XLR etc) have most often standard voltage: 2v for unbalanced and 4v for unbalanced (although there are exception, like Topping DM7 that can deliver 5v). com with discounts, ending in 6 days - amongst other products - Topping LA90D @ $679 (discount $120) 2 year warranty, Free shipping, tax and import duty paid That's not really fair for the early adopters who usually are the hottest fans of the Sep 2, 2022 · REVIEW. Apr 25, 2022 · Hello All, I just purchased a silver Topping LA90 to give a tryout driving JBL D2/M2 Tri-Amped CD Horn Tweeters. People have a tendency to overestimate their hearing capabilities. Apr 25, 2022 · The D90SE DAC is used as a volume control - and the LA90 amplifier is switched to the mode WITHOUT volume control. com for $590 if anyone is interested. Apr 25, 2022 · Listening to music in a 80% Helium atmosphere is both, very revealing and very hilarious. #233. 9V to reach max output voltage. 75A, the fan speed it at about 1400RPM) and air exhausted remains around 35C. The case is the same as the IC-based Topping LA90 which is fine with me given its high quality look and feel. this is a very good result, using the la90 in bridged mode with 4ohm load it produces more power and less distortion than the benchmark ahb2 with a 40% lower price. Apr 11, 2023 · With the L90D, don’t use bare wire, or even spade lugs. The front side has two headphone outputs in the form of a 4-pin XLR and 6. 2V (balanced) and Low gain requires 6. TOPPING announced a successful LA90 in 2022, it has excellent measurements and powerful performance. Apr 11, 2023 · There is a Topping LA90 on sale at usaudiomart. Thank you in advance for your clarifications! M. May 2, 2022 · The review was originally posted on April 25th, 2022. Feb 13, 2016 · Dec 11, 2020. Folks shopping these two products against each other are far more likely to be comparing a pair of LA90D's to a single AHB2. 6 bits at 5W and 20 bits at full power. It will be announced shortly. Now, a Discrete version of LA90 shows up, coming in at US$799. The D90 costs US $699 with free shipping from Amazon. ” Apr 11, 2023 · Should be something like, "Power vs Distortion @ 4 Ohms Stereo (both channels driven) vs LA90D Bridged". Found this out when I got my second LA-90 Discrete three days ago (ordered 17 Apr) - Obviously confused in my mains cables & everything else box (14 different UNIVERSAL Serial Bus ends, on dozens of them!) plus the Apr 25, 2022 · eboleyn said: Clearly there is some form of that effect in many modern low-distortion amplifiers (including the Topping LA90), as you can see that as the output decreases from the maximum there is kind of a "sawtooth" of the noise/distortion floor until it finally reaches some minimum and then it just slopes up as the output level goes down Apr 25, 2022 · I will say for the third time: I am completely satisfied with the volume that the LA90 gives and the question is only about the advice that they give me: "an amplifier more powerful than a 55-watt one will give a better sound). Mar 1, 2023 · Topping LA90 Discrete Amplifier Review This morning I received an email from Shenzhenaudio. Apr 11, 2023 · Got ist today. 5 dB (Vela 408) are connected to the output of the amplifier. 999% of other amps, and since it also has a low output impedance, it does a near perfect job as an amplifier. Hmmmmm. Jun 21, 2022. This aspect continues in the operation of the . In dual mono it was very revealing and easy to listen. The LA90 is a keeper. NOTE: Given some recent comments that manufactures Jun 6, 2022 · Fixing it afterwards erased the 0. by Steven Stone. Hypex NCore NC252MP (2x250W) Market Overview. Desktop: Topping MX3s,, SMSL SU-1, Guru Audio Junior+, AKG 271 Studio, Moondrop Joker Portable: Moondrop LAN, Audio Technica E40, TRUTHEAR x Crinacle ZERO Red etc TV: LG B3 77" OLED Apr 25, 2022 · Detroit, MI. Sep 02, 2022. Topping power supply has 5A. That’s my opinion. It can be purchased from their web-store by following this link . The amp thus is suitable and falls in the 40-100W range. Reactions: 于是两年后我拿到了 Topping LA90. The LA90D has 10W more at 4Ω Stereo and 6W more at 8Ω Stereo. The Topping DX5 is a desktop class DAC/headphone amplifier all-in-one device. When used in mono mode, the minimum impedance is 4 ohms. Since the LA90 uses 64V rails, I'm going to assume those two pairs of 35V caps in series, and each series pair is shared between channels. One of those 3 Watt into 16 Ohms Topping headphone amplifiers gets too hot driving a pair of JBL2451’s with Aquaplas diaphragm Compression Drivers. It has been reproduced here in its entirety. This is a review and detailed measurements of the new Topping L50 balanced (input) headphone amplifier. The LA90D is 100€ less than the LA90. Don’t use unbalanced sources or adapters. Many speakers' impedance go easily below 4 ohm (lets say some 8 ohm "rated" impedance going down to 2 or 3 ohm between 100 and 200hz). A 100W/8 ohm amp can play 3dB louder. Apr 25, 2022 · I hope Topping would offer a version that can match the AHB2's 100/200W 8/4 ohms output at even double the price, or a power amp version of the LA90 but lower the price to say $400 to $600. 0A! Feb 13, 2016 · This is a review and detailed measurements the Topping A90 Balanced and Unbalanced Headphone Amplifier. Apr 11, 2023 · 40wpc per channel was pretty much the minimum, the absolute bare minimum entry into high fidelity in the early 1970s! 40wpc amplifiers were less than $150 (US) and they were a genuine, under-rated 40wpc. Apr 25, 2022 · My 30-minute search, including Google, this thread, Apos and Topping sites, failed to answer this Q. Model: TP22A". Consequently the ESD causes a dropout of the DAC, the preamp and the LA90 Discrete. Apr 11, 2023 · This is a review and detailed measurements of the Topping LA90 Discrete balanced stereo amplifier. www. #851. View attachment 202305 I must say, this is one interesting industrial design. So in low gain mode, the LA90 has gain of 9. What is LA90 input impedance, both stereo and bridged mode? A different but related subject: I consider a Bryston preamp > RCA IC > RCA/XLR adapter > 2 bridged LA90 (might switch to XLR IC. J'ai écrit à un revendeur Topping aux Pays-Bas. With bridged LA90, you are only getting an increase from 120 W to 180 W at 4 ohm (1. 5A. Apr 25, 2022 · This LA90 amplifier is just what I was asking for. Input sensitivity. It was sent to me by the company and costs US $599. I'll never buy a topping product again. Apr 11, 2023 · Sep 4, 2023. There is NO comparison. The power consumption when there is no signal is about 20W. Topping also supplied two UK-Euro adapters for same. Apr 11, 2023 · Technically superb, class leading in some aspects. Apr 25, 2022 · The LA90 doesn't "support" 4Ω Mono. Cranked up to 5 Watts into a 4 Ohm test resistor the amplifier gets hot to the touch. There are to gain settings. The speakers can handle the max power without coming out of their save operating areas of watts and max. Apr 25, 2022 · -Freya+, Eversolo DMP-A6, Bluesound Node 2i, VTV Purifi, Buckeye 3 channel Purifi, Buckeye 2 channel NC252 MP, Emotiva PA-1 monoblocs, Onkyo RZ50, Topping D90SE, Revel F208, Infinity RC263, Kef surrounds, Monoprice M-10 V2, Infinity Sub R-12, LG C3 evo. I don't think it is worth it. The LA90 never even gets warm/hot to the touch. Apr 11, 2023 · I thought the newer, discrete version, the Topping LA90D, supported 4 ohms in bridged mode with 8 ohms being the recommended impedance for the earlier 'LA90' in bridged mode. This design uses individual components optimized for audio performance, delivering superior sound quality by reducing distortion, enhancing linearity, and providing greater control over the audio signal. I must say, this is one interesting industrial design. Replies 2K Views TOPPING’s new flagship amplifier will be launched in late May Apr 11, 2023 · The LA90D/LA90 uses a 64V single power supply. 6k for a pair of LA90D's. 0A, to 2300RPM at 2. No problem of SPL in nearfield listening with KEF iQ30 and old LA90. But then a matching preamp is not going to be cheap. Hence, improved distortion specs of 16db were way more significant than an extra 110 watts per channel. load impedance of 4 ohm. I have a pretty elaborate set up and run each one off a dedicated output. kenshone said: I don't have enough technical knowledge in this field to authoritatively refute the claim. 49 61 6D 4E 69 6E 6A 61. use banana connectors and only connect or disconnect with power off and amp unplugged. The SA-10 is almost 10 years old now. Steven previews the Topping LA90 Power Amplifier ahead of his upcoming review in The Absolute Sound magazine. The ATI sounds Dirty and harsh compared to the Topping. I hear clear degradation using the LA90's vol control, compared to using my old Pass X1 pre. I just wanted something very neutral sounding so I can match it with a Freya+ and play with different NOS 6SN7 tubes sound. Apr 25, 2022 · Dec 21, 2022. In both cases, that translates to 3% more volume. On ne sait pas si c'est un faux. Anything else is unacceptable. There is little doubt that well-made active Apr 11, 2023 · Jun 14, 2023. The LA90 Discrete’s volume can be adjusted using the large knob on the front panel. Some concerns about real-world behaviour and a bit of debate about new-fangled vs old-school design ethos. Topping LA90 Measurements These are non-bridged mode measurements. Feb 13, 2016 · Seattle Area. Bryguy said: My interest in this LA90D amp is renewed now, perhaps foolishly. Like its companion DAC, the D70 Pro Sabre, the A70 Pro sports the gorgeous and highly responsive display (which can be set to above or graphic VU and Jun 21, 2022 · Seattle Area. Nov 28, 2021 · This is a review and detailed measurements of the Topping LA90 integrated amplifier. Why anyone buys Topping gear completely eludes me. 5ohm. Apr 25, 2022 · Great review Amirm. TheBatsEar Major Contributor Feb 13, 2016 · Founder/Admin. Not more. Apr 25, 2022 · The LA90 sounds nice. The power switch doubles as input selector once the unit is on. 5A: The fan increases in speed, from 500RPM at 1. audiosciencereview. The SINAD 120 should have been something to build upon. #510. Obviously the massiv power brick of LA90 Discrete is not grounded Mar 23, 2023 · It is my absolute pleasure to recommend the Topping LA90. Use your ears to listen to music not as an analyzer. There is an extension that gives you four (4) more inputs (three balanced and one unbalanced) for Mar 31, 2022 · Topping suggest setting the LA90's volume control to "Bypass" and using an external preamp for volume control if you want to use two Amps in bridged mode. They are a lot cleaner than my ATI527NC which you reviewed—it was not even in the same ballpark. #646. It is named on the user manual as: "LA90 Descrete. High gain requires 2. Sep 5, 2023 · I see in some LA90 discrete pictures, that four, 35V, high quality Nakamichi bulk capacitors are used for the power amp section. May 24, 2023 · Seriously, if the Topping LA-90 has similar reliability issues identified by genuine purchasers/owners, then a public service announcement must be made. Customer service is Apr 25, 2022 · Main: SMSL C200, Topping pa5 II plus, Guru Audio Q10, Canton GLE90. #1,381. It's actually cooler at 2. In Germany C7 is allowed up to 2,5A. 9Vrms @ G=L. Apr 25, 2022 · Overall, I really don't understand the camp that seems bitter that Topping decided to build a power amplifier in the LA90 that weights sound quality over power, and achieved that goal at the highest level. So do the Parasound amplifiers. Everything oozes style despite the diminutive package. With a power output of 110W x 2 @4Ω in stereo mode and 220W x 1 @8Ω in mono mode, the LA90 has enough power to drive a wide variety of speakers. LesterNZ said: My LA90 Discrete via "AliExpress, BrightAudio Store" ordered on 25 March and received in Auckland NZ on 4 Apr, was supplied with a USA type mains plug end lead with a THREE (not a "little twin, flat 8") socket plug into their outboard PS pins. If you have an unbalanced source, get a proper preamp with true balanced outs, or different amps. Those are different things. Lounge: Wiim Pro Plus, amplified by Yamaha A-S1200, played by Wharfedale Linton 85. But the input impedance as far as we know is 20k ohms so 2 in parallel should be 10k. 5A than at 1. com JSmith . Apr 11, 2023 · Better crosstalk performance on LA90, and only few watt of improvement on LA 90D, make old LA90 better in stereo operation (5W on 36, and 14 on 56, is not a upheaval) and new La90D better on bridged operation. The base preamplifier with ability to switch between RCA and XLR inputs costs US $599. Unlike with the PA-5 debacle, the now available units aren't called "LA90 Discrete mkII", but I am inclined to regard them as such. Mar 31, 2022 · TOPPING LA90 Amplifier Class AB 2x90W 4 Ohm / 1x180W 8 Ohm Silver - Audiophonics Topping offers with its LA90 a powerful and efficient amplifier, which can work both in stereo and mono mode. #1,865. Edit: I would add that a pair of Benchmark ABH2's retail for about $7k compared to $1. A. The first one completely stopped working after 3 months, it was a brick. Apr 25, 2022 · I was seriously tempted by the cost of two LA90s in mono combination with D90SE + Pre90 having a grand total less than one ABH2. Apr 22, 2020 · Nearly there, (discission point 4), Amir measures signal to noise ratio for the LA90 at 21 bits at 5W, 23 bits at full power. Uniquement en Hongrie. Apr 25, 2022 · I am on my third LA90, (not the LA90D). This is a review and detailed measurements of the Topping A70 Pro balanced headphone amplifier and preamplifier. After some time of Topping halting sales, it is back on the market. May 12, 2023 · Seattle Area. At 5 Watts driving JBL 4311B monitors it is too loud to stay in the room. Apr 11, 2023 · However, my big concern is that La90 Discrete is rated with min. Apr 11, 2023 · Jun 6, 2024. Apr 29, 2022 · The TOPPING LA90 can operate in both stereo two-channel mode or in a high-power mono mode. My understanding is that the limits of analogue tapes used in recording studios pre-digital, and the limits of human hearing, 20 bits is pretty much the limit. It was sent to me by the company and costs US $229. And again I feel if a PA90 is in works, it should be <$600 mono blocks. The negative terminal of the speaker output is connected to the voltage divider point of this series capacitor. Apr 25, 2022 · The LA90 can do 50W in 8 ohm and has no issues with the 3. Thanks DT Apr 25, 2022 · Topping has amazing engineering talent, full stop. The D90 is one a few DACs using the latest DAC chip from AKM (AK4499). Volume control can be bypassed although I did not do so for my testing. com View attachment 201499 Sep 12, 2023 · So my LA90 arrived and I can't find out through the seller if my unit was made before or after July 15 (supposedly there's been a change in manufacturing change since then?) I have about 23 days left to return/ exchange the unit. Mar 31, 2022 · www. Something is missing though when it comes to consumer ergonomics and reliability, for lack of better terms. Joined Jan 24, 2024 Messages 33 Likes 15 Location Shangri-La. The LA90 Discrete outperforms the LA90 standard one, so I would be surprised if this measures that poorly. And that was with speakers boasting 90-95dBSPL@1W/M sensitivity. I like the aesthetics, reliability is yet to be demonstrated (I have a repaired Topping PA5, but that doesn't mean that the LA90 has any issues). Apr 25, 2022 · To reach those levels with the SP400 and A90 you would need to drive the Susvara balanced though, the LA90 can do this using the TRS jack. This is a review and detailed measurements of the Topping LA90 integrated amplifier. It has 2 gain settings. In the short-term, it's stable and doesn't break. Apr 11, 2023 · Topping LA90 Discrete Amplifier Review. Apr 25, 2022 · Listening distances are 1. Apr 25, 2022 · Topping LA90 Review (Integrated Amplifier) amirm; Apr 25, 2022; 117 118 119. Dec 23, 2019. The first two had to be returned. View attachment 278528 The case is the same as the IC-based Topping LA90 which is fine with me given its high quality look and feel. The interblock cables are XLR. 80m and 6-7 m. No muss, no fuss and no hiss. l7audiolab. This is a review and detailed measurements of the Topping LA90 Discrete balanced stereo amplifier. AzReciOn and terryforsythe. Apr 25, 2022 · The LA90 is so clean compared to 99. The device isn't that attractive, no remote, can't run 2-3ohm, and 85W@4ohm at $800 Nov 27, 2023 · The Topping LA90 Discrete can be configured and connected to operate in stereo or mono mode, with the combination of two LA90Ds providing higher power. In addition, the paper you quoted handpicked parameters such as the "typical listening volume" parameter without justification. But I will take a stab at interpreting it, which is that the paper is looking for cost effective near field performance, rather than the best performance. When I inquired with the dealer, they said it would be in stock in mid-June, but this schedule is also undecided. The ATI you measured at 99 while the LA90 at 120. There is also 12 volt trigger. The cost effective market has little overlap with the market for flagship products such as the la90. By connecting two 35V/4700uF electrolytic capacitors in series, the power supply voltage is divided into two to simulate the same operation as when using a +32V/-32V power supply. LA90 doesn't seem to dissipate heat well. It has a high-precision CNC-machined all-aluminium housing with a utilitarian but prestigious aesthetic. One at 10 dB and another at 20 dB (nominal). USB cable comes to the input of the DAC, and 4-ohm speakers with a sensitivity of 88. . #1. zr mo lo ny qx nl ak cl vl vw