Preamp Deal of the Century

As a few other have done, I installed a pair of Mundorfs and a pair of V-Caps in my Grange. You'll need to find a new spot for the Mundorfs as they will not fit in the same position as the factory supplied caps and the leads must be extended. If you're handy with a soldering iron, I highly recommend this mod; just take your time. Hard to believe this preamp could sound any better but the new caps really make a difference.

Now for those Grange owners considering a Bendix 6106. Not a good idea. Other Supratek linestages/preamps might accept this rectifier but the Grange will not. The 6106 is a variation of the 5Y3 which is not a direct replacement for the factory supplied 5AR4. It is rated for only 125mA average while the 5AR4 is rated for 250mA. The Grange draws about 230mA. So if you're a roller, stay within the 5AR4 family, i.e. GZ37, GZ32, and GZ34 per the owner's manual. It took me 3 blown fuses and thankfully no other damage to learn this.

Lastly, a pair of Cca makes a huge difference in the phono stage if you can find a nice deal.

Okay, I am sold with the Mundorf's! Where did you guys get the schematic for your pre? Or you just replace the last pair of the coupling caps of the output stage?

Anyone tried Mundorfs in a Syrah ?

Guess everyones too busy enjoying their Suprateks !

Hello Simon74,

I asked Mick if he was putting the Mundorfs in the new Cortese. He said he has not figured a way of putting them in because they are so large and the Cortese is pretty packed inside (not much empty space).