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


Cheers George
128x128georgehifi
@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)  "

The SU-R1000 features newly introduced Tech Innovation apart from previous models in ' ADCT (Active Distortion Cancelling Technology) ',
'Advanced Speed Silent Power Supply', and 'Intelligent  Phono EQ' consisting of:
1) 'Accurate EQ Curve' 
2) 'Crosstalk Canceller'
3) 'Phono Response Optimizer
https://www.technics.com/us/products/reference-class/integrated-amplifier-su-r1000.html#specs

Here is one in black.

https://ibb.co/xhsfm4b

You know it has an 8mm!!! thick front panel and 6mm sides and top! "it’s a swiss army tank"

Also while not a review yet, a good deal of spiel on it here.
https://www.hifi.blog/technics-su-r1000-integrated-amplifier-the-first-integrated-amplifier-of-the-r...

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.


Cheers George
Post removed 


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..

SU-R1000

  • 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

https://jp.technics.com/products/r1000/images/ph.jpg


And it can be used as a Pre-amp only or Power-amp only, or Integrated

https://ibb.co/mRkpDJh


And the dac has 6 digital inputs in 3 different configurations, using the (Asahi Kasei Electronics) aka AKM top D to A converter

This is a real "Swiss Army Knife" of Integrated Amplifiers

 
Cheers George
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.
I would be interested in this product.  Looking for a great integrated into retirement.  Hope it delivers.



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."
https://soulution-audio.com/series7/soulution-701-mono-amplifier/

Cheers George
There is a graph at 
http://https//www.technics.com/us/products/grand-class-g30/network-audio-amplifier-su-g30.html
near the top in the JENO Engine section  The graph is labeled "Output of G30 JENO Engine".  And in the graph it says 1.5 MHZ operation.  I am not totally sure that is the switching speed though.  Technics just mentions "high speed switching" in other places without explicitly stating the actual number when talking about the SU-G30's GaN-fets.


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.

Cheers George
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.



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

Cheees George  


I know why now why there’s no reviews mentioned yet: 
"Scheduled to be released in mid-February 2021"

Found some pics on a Japanese website, very impressive internals for a Class-D. And the outside looks good also.

https://ibb.co/gPP3cwr
https://ibb.co/Ldr5kWF
https://ibb.co/VMf13gw
https://ibb.co/WPpxynF
https://ibb.co/RvrdbcC
https://ibb.co/jRnN4jR
https://ibb.co/gw2JwPL

Cheers George