Preamp Deal of the Century

Thf - I have both Sauvignon and Cabernet. The Sauvignon is very good, nothing wrong with it at all. The Cabernet just conveys the essence of the music so much better than the Sauvignon. Speed, neuance, tone, and dynamic contrasts are all better in the Cabernet. The only downside of the Cabernet might be that you hear a tad more tube noise, but it is still very quiet. It has the same Supratek 'house' sound, detailed and transparent but not sacrificing musicality. On my cabernet tonal balance is notably fuller than the Sauvignon but not fat.

As bwhite said the Chardonnay sounds immature and the Sauvignon sounds disiplined. Comparitively speaking the Sauvignon sounds like a recording and the Cabernet sounds alive and vibrant.

Confirm my assisment with Mick becuase he changes his design and tube compliment evolve slightly as time goes on. My Sauvignon is one of the earlier models and my Cabernet uses the WE101D instead of the TJ101D or TJPX4.

Before the cabernet I used to haunt audio websites and high-end boutiques like I was a restless ghost because I was always looking for something better. Not anymore, I am enjoying the music.

Bwhite, the Cabernet only uses two regulators because it´s only a line pre. The Grange uses two pair of regulators one for the line and the other pair for phono wich is housed in a seperate unit and this way it does benefit from having it's own regulation. There are two preamps in effect in the Grange- the phono and linestage.
The Cabernet just has a linestage so it can only have two regulator tubes- one for each channel.
Mick told me that putting a Cabernet/Grange power supply on a Cortese wouldn't work because they have completely different requirements.

Jazzdude, thanks
It does keep getting better and better as Amandarae mentioned. I used to run my Wadia straight into my W5 with outstanding results. I was thinking could not get much better than this....Wrong. Just opened up a whole new dimension to sound. Can't wait to start tweaking now.

Good listening.

Mick told me that the newest Cortese also has two pair of regulators, one for the line and one for the phono stage. He is also direct coupling the tube phono stage eliminating all coupling capacitors for a much more 3D image.

Hi Fiddler - Modifying a Supratek?? I am sure the DACT will bring a big improvement over the stock potentiometer. I'm not sure why I haven't done this yet.

The "streamlining" mods I am thinking about include:

> Bypassing the MUTE switch. - To my knowledge, all signals run through this switch. This will be one less item in the signal path which should improve transparency.

> Removing the extra wire from unused inputs - since the wire used inside a Supratek is unsheilded it tends to pick up radio frequency & adds to crosstalk problems which could degrade transparency.

> Removing the balanced output and associated switch - again I think all signals run through this switch. I don't use balanced output and the preamp makes a nasty buzz sound when the balanced output or in-between setting is selected - something wrong is going on there.

> Replacing selector knob with a DACT selector - I expect the stock selector knob is not as transparent as we'd like.

> Taking a closer look at the HT Bypass and improving on the design a little - again, all signals run through this switch and it could degrade transparency.

> Rewiring the signal path with different wire (Kondo or Siltech)