B&KSonata Pro 10usedHello. I am an electronics technician by trade and work on audio gear a lot which is one of my passions. I completely refurbished this unit with new Nichicon FG (Fine Gold) and ES series bi-polar (...479.00
Hello. I am an electronics technician by trade and work on audio gear a lot which is one of my passions. I completely refurbished this unit with new Nichicon FG (Fine Gold) and ES series bi-polar (little green ones) audio grade capacitors. The stock op-amps were upgraded with the National Semiconductor LM4562 high performance HiFi chips that sound tremendous compared to the stock ones which are included. The unit has been thoroughly cleaned inside and out. Both the volume and balance pots were disassembled and cleaned. All connections have been cleaned with contact cleaner. This unit is ready for another 20 to 30 years of service.
The external transformer was missing. I was able to find a schematic online and was able to re-create it with exact same voltage transformers. Honestly, it sounds amazing. I have been in the audio hobby for 40 years and this is one of the nicest sounding preamps I have owned. I’m not even sure why am selling it. Just to try something different I guess. The MM/MC phono stage sounds amazing too.
I can describe the sound as very rhythmic. Snare drums have
a real presence to them or any percussion for that matter. Highs shimmer but
are never bright. Bass is deep and controlled. I would compare it to a Naim
preamp I once had some time ago. It really puts a smile on my face.
The overall condition is good. Some light scratches on the top cover. No major deep scratches, dings or dents. Let me know if you have any questions.