Technics SU-R1000 a new Class-D GaN Technology integrated
Maybe one to look out for.
There’s a new approx $10K integrated Class-D from Technics called the SU-R1000 Integrated Amplifier around 22 kg, 150w-8ohm and 300w-4ohms, would have been nice to see what it could do into 2ohms . Said to have many of the GaN Class-D features of the far bigger SE-R1. But nowhere yet can I find if it uses the 1.5mhZ switching frequency that "makes" the SE-R1 what it is.
Also it uses smp power supplies, even though it’s 22kg, Unlike the SE-R1 at some 60Kg because of it linear supplies. No reviews or measurement tests as yet for this one from Technics
Once I find a review and hopefully bench test done, I'll post them up.
This one really looks the affordable goods using GaN, if it also used 1.5mhz switching speed, like the SE-R1. If anyone find more info on this please post it up. I also found, I think it has a built-in DAC and MQA (not that mqa means anything to me) as well MC MM Phono
Based on a graph on Technics own website for the much cheaper SU-G30 that reads "1.5 MHz Operation", there is no reason to think this new $10,000 integrated is not operating at that speed (or faster?) IMHO.
I will also be keeping an eye on this new integrated amp.
I think we already found that the SU-G30 it was not 1.5mhZ switching speed just after it was released, but around the 600khz that most uses today. Can you put up a link to show the 1.5mhZ switching speed
PS: Sorry, you maybe right, that could have been the SU-G700 that wasn’t 1.5mhZ, maybe the SU-G30 is? And if so then the SU-R1000 would have to follow also, they’d be mad not to.
Yes that it, when I queried Technics on it with the SE-R1, and one of the reviews also backed it up. Wow that means the SU-R1000 should hopefully have the 1.5mhZ switching speed also, when it comes out in mid/Feb 2021
They must have listened to what Cyrill Hammer designer of Soulution Audio had to say about Class-D
"if you want to have your product performing at the cutting edge it is not possible with today’s known switching technologies. In order to come close to the performance of the best linear design we would need high-current semiconductors that provide switching frequencies of several MHz or even GHz."
I'm pretty sure the figure of 750 to 900 kHz, less than 1 MHz, was written somewhere in relation to the G30. I remember being disappointed that it's not the promised 1.5 MHz, but also thinking that maybe it was good enough. Recall that I used to own it. Now possibly it's 50W into 8 ohms wasn't enough to really get my ProAc D30Rs into the zone but I remember being left cold by the sound which I thought was sterile / boring. I also thought the MQA didn't really sound any different through it. It had an internet radio function which was cool. I also remember being disappointed by various problems the built-in UI had, but those were ultimately manageable. I'm sure it's been fixed by now.
I would like to hear the SE-R1 if I can find a dealer somewhere I can listen to it.
SU-R1000 might be just the ticket if the promise of 1.5 MHz bears fruit.
Here’s something interesting, they gone all out could be a good sign, it uses a clock that is battery powered, must be rechargeable with it own charging system..
Thorough noise countermeasures improve clock accuracy and reduce jitter.
"Battery Driven Clock Generator & Low Jitter"
"Battery Driven Clock Generator" is used for the power supply of the clock circuit to improve the accuracy of the clock, which is the standard of operation in a full digital amplifier. By using a battery as the power supply for the clock circuit, the adverse effects of power supply noise on the clock circuit have been eliminated, enabling highly clear sound image localization and clear spatial expression. Moreover, the clock itself has adopted a low phase noise type, and has been thoroughly improved in accuracy.
It also has balanced input for the phono stage, for the T/T lovers
And this is interesting for the T/T crew, all phono stages I know do their RIAA curve using passive componet filtering this thing does it using digital filtering, said to mimic much more accurately to the RIAA curve. and be less noisy, less distortion as well.
@georgehifi, "Here’s something interesting, they gone all out could be a good sign" ... the 'Battery Driven Clock Generator' reference on the site is used in all three Class Divisions (Premium, Grand, and Reference) and is not new nor only found at the Reference Level Class of products.
From Technics Site: "Technics has extensive experience in circuits using battery isolation, having used them to create ultra-low-noise pre-amplifier stages in past analogue amplifiers."
Jitter Reduction (as a theme) is also found throughout the full range of models. "
JENO Engine (Jitter Elimination and Noise-shaping Optimization) "
Haven’t found if it use the ground breaking 1.5mhz switching frequency that Technics use in the flagship SE-R1, but they do say on other sites it uses "very high" switching frequency??
What I did find though for the "vinyl crew" which could interest or disgust them, is it looks like you get a calibration record with this amp, to play your phono cartridge with and the SU-R1000 analyses these tones and then digitally equalizes it dead flat. (should sound just like cd then, but the channel separation will still only be 30db at best can’t fix that)
Another review that tells us very little. He liked it, that is for sure. However, he did not compare the $10K Technics to his $26K Pass mono amps or any other amp or integrated amp. So, what do we know?: It sounds better via digital in than analog in using a Manhattan II that uses an ESS dac chip and ordinary op amps. Whoopie! I could have told you that it would sound better than a decent DAC and interconnect via analog before even listening. However, how does the analog input sound driven by a serious DAC.....say the MSB select or the big DCS Vivaldi? How does the analog input compare with a Pass or other $10K+ amp? We will have to wait and see. For sure, there is a lot of cool technology here in this digital integrated amp. The LAPC feature cannot be done without it being a digital integrated amp. The future looks good. This really cannot be compared to a normal class D amp as there is so much more going on here. We will have to wait for someone else to more fully review this product. Some serious A/Bs are necessary.
Hmm! interesting, could be a winner. They talk about transistor switching (hopefully frequency used) and "very gentle negative feedback" resulting in "silky tops". But don't give any details of the switching speed, feedback db's or what phase shifts are in the upper audio band "tops"
The thing I don't like to see is it only has 10kohm input impedance, not good for preamps with small value capacitor coupling, passives or most tube preamps, yet they give the choice of two gain setting 23db or 29db latter being good for passives or unity gain preamps. Time will tell when one is bench tested.
It really struck my how far ahead of the curve Panasonic/Technics where with their r&d, you can appreciate what they do for vinyl, but their amps should be wider recognized. SU-G30 and SE-R1 is now 5-6 years old but still relevant.
I currently work in the IT industry for a TW company but worked in partnership with Sony for 10+ years, appreciate their history and innovations(the ability to commercialise ideas out of Universities), browsing thevintageknob you realize how the audio innovations of Sony, Panasonic etc is not that widely recognised in hifi circles.
(One of my best experiences with Sony in audio was to try at home the TA-N1/TA-E1/SCD-1 combos with my difficult to drive Martin Logan Ascents, magical music experience, leads you to listen to albums instead of just testing different tracks)
Maybe because they create too many budget solutions with their logo on, that their PR department focus is less on the high end products so the devices is not seeded to KOL, leading to less reviews and less recognition outside Japan or maybe due to less partnership with hifi retailers in the west.
I just bought a SU-G30 and the sound is really fluid, with a glass like high end which is really 3 dimensional, with a powerful class-d bass performance. It's " only" 50w but my speakers are rated at 87db/1w and I feel 95db+ is a bit to loud at home anyway.. Though the streaming app feature leaves a lot to be desired (also a culprit of Japanese companies to treat the software as a afterthought) but it works really well with Audirvana over DLNA with DSD 128, Flac 192 and Tidal.
Support innovations where it's at, if it is a boutique creator or a corporate giant, r&d budgets and marketing budgets is often function of your sales revenue.
Here more info on this new Technics Integrated amp and they are also coming out with a new "all in one system" called the Ottava F SC-C70MK2 that has much of the technology found in their top of the line high priced Reference R1 Series too !
Here something from HiFi Blog on the new GaN technology Mytek Empire monoblocks, it’s got some get up and go into 8ohm and 4ohm. Would have been good to see the 2ohm figure though, to see if it starts "wheezing" into it, or if it goes up substantially again from the 1000w 4ohm figure.
Mytek EMPIRE monoblock delivers no less than 1,000 watts of power to speaker systems with an impedance of 4 ohms. If the speaker systems have an impedance of 8 ohms, there is still a whopping 500 watts available.
Greetings from Medicine Hat Alberta Canada, It does indeed use the 1.5 mhZ switching frequency. I am a dealer and I should be receiving the first one in Canada next week as they have landed on our shores. Excited to experiment with all this new technology. Happy Listening....John
Hi George, I searched and can't find that source, it was a late night. But I did just receive more pre-arrival information from Technics. Now this is on the Jeno engine Low Jitter section so not sure if it what you are looking for, my rep says he will contact the factory for me if not. From Technics...
JENO stands for Jitter Elimination and Noise Shaping Optimization
Digital signals of various music sources come in with various sampling frequencies such as
36KHz/44.1KHz/48KHz/96KHz/192KHz. Therefore, before processing, these signals have to be
upsampled to a sampling frequency that is the least common multiple of the input/output sampling
frequency, and then decimated at the output sampling rate again. Since this oversampling signal
processing accuracy determines the performance and sound quality of the entire amplifier, it is
necessary to ensure maximum accuracy.
The digital audio signal input signal is first input to the “Low Jitter Sample Rate Converter”, and the
sampling frequency of the sound source input at various sampling frequencies is converted to a single
PWM drive frequency (768KHz).
In order to perform PWM drive with high accuracy, the signal must have no time fluctuation. Therefore,
a PWM signal is generated from a highly accurate clock signal obtained by the crystal oscillator. On
the other hand, the input signal contains jitter due to the influence of the transfer path, etc., and is
asynchronous with the output. In order to synchronize the input signal clock with the internal
processing clock of the amplifier, a highly precise Sample Rate Converter is required to have the
function of converting the sampling frequency(“over”-sampling) while removing the input jitter.