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Monday, May 1, 2023

Preview of the Integrated 300B Amplifier

 Hi!

The chassis material for the integrated 300B amp arrived. Here a quick preview of how it will look like:




In March I showed the test build which was used to evaluate the concept. Now a version in the final chassis is being built.




The 6DN7 driver tubes in front of the 300Bs. Two power transformers and a choke are hidden under transformer covers.



At the left corner in the back two rectifiers tubes. 6AX4 or equivalent tubes like 6DA4 and 6DQ4 can be used.



Two more chokes and the output transformers will be mounted  under the top plate.



The first version will also get headphone outputs at the front. Any impedance headphone can be used.



Initial pricing will be 8500 Euros (within EU including VAT) / 7150 Euros (export). Price will be raised by 500 Euros later on. The price includes Elrog ER300B and NOS 6DN7 and rectifiers. Any 300b can be used. The unit can also be ordered without output tubes. Stay tuned for photos of the final build when assembly is finished.

Best regards

Thomas




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11 comments:

  1. AnonymousMay 2, 2023 at 9:55 PM

    preview for Munich High-End ?

    ReplyDelete
    Replies
    1. AnonymousMay 2, 2023 at 9:59 PM

      No, I will not exhibit in Munich. The show became to much focussed on B2B for me

      Delete
  2. AnonymousMay 3, 2023 at 12:43 AM

    That is a amazing bargain price! Beautiful compact design!

    ReplyDelete
  3. AnonymousMay 10, 2023 at 5:41 PM

    Hi Thomas - you mention a HP version with 3 impedance output in a previous post. Is that a different build?

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    Replies
    1. AnonymousMay 10, 2023 at 5:45 PM

      I can build a version with impedance settings on request. This one however is able to drive all headphones low and high impedance as well as speakers. If the gain is too high the volume can be attenuated by 20dB with the switch besides the volume control

      Delete
    2. AnonymousMay 10, 2023 at 6:34 PM

      Ok thanks - do I understand correctly that such a version would require transformers with windings for the specific impedances?

      Delete
    3. AnonymousMay 10, 2023 at 6:39 PM

      yes and I have those transformers in stock

      Delete
  4. AnonymousMay 15, 2023 at 11:48 PM

    it doesn't look like it has enough clearance between the transformer cover and 300B socket for non-Elrog tube.

    ReplyDelete
    Replies
    1. AnonymousMay 16, 2023 at 6:59 AM

      It has. Wait for the post with the final amp which will also show fotos with other 300B tubes

      Delete
  5. AnonymousMay 25, 2023 at 12:06 PM

    Very cool idea and looks superb! This might be very succesful, considering the increased popularity of headphones. 801 as a driver tube, would that be an option?

    ReplyDelete

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