Wednesday, July 30, 2008

Dada announces the 405 High-End boards.



After a period of testing, improving, listening and testing again we can proudly announce the 405 High-End boards today.

They were designed by Dada Electronics and JP Engineering and we are convinced we will set new standards in High-End audio.

We applied the same philosophy as last year when we launched the 303 High-End boards. Except for some practical or obvious improvements we started with the latest original Quad 405-MK-2 schematic (M12333.10), but with today's very best Audio-grade components only.

We used:

  • Burr Brown OPA627 opamps, the highest standard in precision operational amplifiers (an alternative board with OPA604 is available).
  • Silvered Mica capacitors for HF-handling
  • Wima MKS4 for decoupling
  • Nichicon Low ESR electrolyts
  • 1% Metalfilm low-noise resistors
  • Epcos inductors
  • MJ15003 Power-transistors and BD242C drivers

In this version we left out the current-limiters, you won't need them if you use the Dada LS Protection/Delay and they would have a negative impact on the dynamics of the sound.

You can now easliy upgrade every Quad 405 yourself by replacing the 2 amplifier boards, the power-supply and the LS protection circuit. As the concept is modular you can use one of the 3 options separately as well.

The new High-End boards are available in our Ebay-shop in a Burr Brown OPA604 and a Burr Brown OPA627 version.

Stefaan & Joost


Willem Tetteroo from NL was our first customer. Here is what he tells about the board (original NL text + my translation):

"Beste Stefaan en Joost,

Ik ben laaiend enthousiast! Super!

Na een heel weekend intensief geluisterd te hebben kan ik niets anders zeggen!

Sprankelend geluid tot in detail. Mooi strak en diep!

In vergelijking met het origineel vind ik dit een enorme verbetering, en ik was al gek van het origineel. Heb veelvuldig vergeleken en vind de Dada echt de fraaiste!"

"Dear Stefaan & Joost,

I am extremely enthousiastic! Super!

After a whole weekend of intensive listening I can't say anything else!

Sprankling sound upto every detail. Nicely neat and deep!

In comparison to the original I find this an enourmous improvement and I was already crazy about the original (450-2). I compared many times and I find Dada really the nicest one."

2 Comments:

Anonymous Anonymous said...

I would just like to take some time too Thank all the people for doing what you do and making the community what it is im a long time reader and first time poster so i just wanted to say thanks.

2:01 PM  
Anonymous Anonymous said...

I would just like to take time too Thank everyone for doing what you do and making the community what it is im a long time reader and first time poster so i just wanted to say thanks.

7:45 AM  

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