Testreport about the tube amp project 300B

The great test - meeting of the giants!? 

  The great day came, my hi-fi dealer arranged a large comparison test with the "Audion 300 B" mono tube amps. The test chain consisted of the following devices:

The sources were a HHB Burnit plus CD + CLEARAUDIO Champion level II, the preamp a Burmester 808 MK III and for the "purest electricflow" the Powerconditioner from Burmester.

 

At the end the two devices to compare were connected: The large well-known"Audion300B" against the "300B PSE" of Worldaudiodesign, completely unknown on the German market, available as a kit in England.

The Chinch wiring took place with Burmester "lila" and the loudspeaker with Van den Hul  MC 0 352. My Tannoy Edinburgh with Supertweeter were connected as loudspeakers.

Firstly, we began with the tube amps of Worldaudiodesign. After a short time, the question arose if the output stages had already warmed up. It was not the case as it ran only for 5 minutes. We were shocked about the good sound of the system which was in a more or less cold condition. After some time the fantastic spatiality, brilliant vitality and enormous speed was noticeable which you rarely have heard before. This kind of sound spectrum we expected and knew only from devices which are very expensive. After a long time we changed to the Audion amps. Well, the first impression was not intoxicating. We missed something, which I would expect from such an expensive amp (prices can be found in the Internet!). Now the question arose if this came from the impedance of the loudspeakers as the Supertweeter impedance went down to 6.5 ohms. Therefore we connected the system on the 4 ohms output. The tube amp of the Worldaudiodesign has only one output connection of 8 ohms as we realized without problems. When desired also a 4 ohms version can be ordered. The connection on 4 ohms at the Audion brought more vitality and speed but we still missed something. As a last attempt we connected the CD player directly to the Audion but this was not a great joy. The Audion is delivered with "Gold Dragon" and the Worldaudidesign amps with 300Bs of JJ electronics. I certainly will do comparison tests with other 300Bs.

The result of the hi-fi evening is as follows: The sound of the Worldaudiodesign tube amp is very good, especially the spatiality and vitality, particularly in the vocal area and with acoustic guitars. I have never heard a similar output system for this price and as a kit. This is really a quiet tip. Congratulations to Worldaudiodesign!

It cost me quite an effort to order the kits in England. You never know what you will get when you haven't heard and seen this before. An alternative would have been to order a kit from Japan which is twice as expensive and, in addition, the first optical impression was less pleasing.

 

 

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