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Monday, August 14, 2017

Hong Kong High-End AV Show 2017 - recap


Yesterday was the last day of the Hong Kong High End Audio Visual Show 2017.

It's been a great show and we have been overwhelmed by the positive feedback from the visitors, the excellent discussions and interest in our products and especially by the warm welcome we received from all the people here.

Our listening station with the AURIS headphonia amp gave visitors the possibility to listen to the ELROG 300B, and this was used often.

Thanks again to AURIS for providing the demo unit!

Many visitors took advantage of the special show price which was offered on ELROG tubes.

Each box of tubes purchased on the show was signed by me. At the end of the show we were sold out of tubes.

Jeff Lin of Sheng Kai Co Ltd, our dealer carrying ELROG tubes in Taipei, Taiwan. And here the team:

Emmanuel Lebreton of Baoling Alternative Audio on the right, Derek Hsu, our local agent in Hong Kong in the middle and myself.

Thanks again to the organisers and to all the visitors for such a great 3 days!

See you again in Hong Kong next year!


Saturday, August 12, 2017

Live from Hong Kong : High-End AV Show 2017, Part 3


Today is the second day of the Hong Kong High-End Audio Visual Show 2017.

Before the exhibition opened for the visitors I took some photos of our booth...

... because afterwards it was usually quite crowded.

I am very positively surprised by the good discussions and interest in the products.

Here the chinese flyer about the Elrog tubes:

As yesterday some life music was played in the foyer:

It's been a fabulous second day....

Best regards


Friday, August 11, 2017

Live from Hong Kong : High-End AV Show 2017, Part 2


Today the Hong Kong High-End Audio Visual Show started. Here a few impressions.

Even before the show opened there were already long queues in front of the registration counters.

Our booth:

A D3a phono stage, 10Y line stage and 300B amp on display.

And of course ELROG tubes.

Shortly after the show opened it's doors we already had many visitors.

Since we have an open booth, we did not set up a system, but visitors can listen to ELROG 300B tubes through a head phone system.

At the Munich High End I got in contact with AURIS of Serbia and they were so kind to provide their 300B headphone amp for demo during the show.

At the entrance of the main hall some live music could be enjoyed.

Here a short video:

Those kids surely had fun!

A percussion session:

So far a great show!

Best regards


Live from Hong Kong : High-End AV Show 2017, Part 1


Arrived in Hong Kong for the High-End Audio Visual show 2017.

As with previous events I will occasionally post some live impressions from the show. Here some photos from the day before it opens.

Everybody fully busy with set up.

Our booth in preparation for the big show.

Come and visit us in Hall 3, Booth A07 in the Hong Kong Exhibition and Convention Centre.

For a chat and to listen to Elrog ER300B tubes.

Best regards


Monday, August 7, 2017

Deutsche Elektronenröhren Manufaktur GmbH Anniversary


Exactly one year ago I announced the founding of Deutsche Elektronenröhren Manufaktur GmbH as the new manufacturer of ELROG tubes.

A lot has happened during the first year. Many changes have been implemented in the tubes. Especially the 300B to resolve the reliability issues it had during the time of production under the old Elrog company. I am happy to report that since production is running under the new company we only received one failed tube back from the field, which got replaced on warranty of course.

On the photo above a pair of 300Bs of recent manufacture. The printing on the glass has been updated and now also shows the company name. Otherwise construction remains unchanged.

End of last year we announced the first new tube type, the 242, a molybdenum plate version of the 211. Producing the first batches took longer than we anticipated, but the first pairs have been delivered and everybody who put in a pre order will receive his tubes soon. I'd like to thank everybody who pre ordered this tube for the support and patience. Those who wanted to place a pre order but had been asked to wait: We will first fill all existing orders which will take until September. Then we will accept orders for the 242 again.

I have been asked if we plan to introduce a similar variant of the 845. Yes this is in the planning and we are producing first prototypes. This tube will be named 284. I will announce availability on the blog, which will probably be around October.

During the High End fair in Munich we launched our first rectifier, the ER274B. Since the ER274A is the same tube with UX4 base instead of Octal base, we decided to make that one as well:

Both the ER274A and ER274B are available and  can be ordered.

In the last factory update I announced plans to develop ELROG 801A and 50 and opened a crowd funding campaign for this. Although we did not quite reach the anticipated number of pre orders, we decided to go ahead with the development. Thanks to everybody who supports this development with his pre order. Development of the tubes and making of tooling is starting in September and we expect to ship the tubes by end of this year. here a photo of a prototype of the 50 which was already made by the old Elrog company:

And lastly I'd like to announce that the 211 and 845 are now being made in a new style.

The old style 211 and 845 generated a lot of heat around the base since the electrode system was mounted close to the bottom. There had been good reasons to do that, namely short signal path and rigidity. However some amplifiers have poor ventilation around the bases which could cause heat issues. So we decided to do a redesign and move the internals closer to the top.

This greatly reduces the heat around the base by some 50 degrees Celsius.

Electrically and sonically we could not detect any difference compared to the old tubes.

Now the glow is much better visible from the top, since the getter is fired around the base.

Thanks to all who supported Deutsche Elektronenröhren Manufaktur GmbH. We are looking forward to our second year and the introduction to all the planned new developments.

Best regards