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Preamp Deal of the Century

If anyone is looking for a true "World Class" preamp at a very fair price..heed my advice. I just recieved a Supratek Syrah preamp that was hand built by Mick Maloney in Western Australia, and it is absolutely beautiful! This preamp is the best deal you will ever find. I would put it up against any preamp out there for both looks and sound. Price? $2500 for the Syrah (includes Killer Phono stage). Not into phono? Try the Chardonney line stage for $2100. Don't get me wrong, I am not associated with this company. I am just a very happy owner! This preamp is VERY dynamic, yet liquid. It conveys the sound of music better than any other preamp that I have ever heard! You can check out the Supratek website at www. cantech.net.au
slowhand
whoopadeedoo
50 posts
 
Philips never made a GZ37. What you have is a rebranded Mullard.

For the record, my 6106 never matured to something I appreciated. I have recommitted to my double D getter metal base GZ34.

6SN7s really aren't anymore prone to microphony then other tubes. It's really the fault of the Supratek implementation. I have never heard a line stage so sensitive to tube noise then the Supratek. When shopping for Supratek 6SN7s, request "phono grade" tubes if your dealer can test for microphony.
amandarae
512 posts
 
Just bought another Mullard gz34 instead.
I truly hope it is better than the one I have at the moment,
which must be a dud as it makes the Syrah sound terrible.
I suffered it for a few days thinking it must come better but could not bear it and put the Sovtek 5ar4 back in.
I will keep an eye out for a bendix.
Thanks again.
Simon


You are into something here. Although the Mullards are great in my Chenin (Metal GZ34), you have to remember that when Mick listened to the preamp, especially the phono, the parameters were adjusted with the conventional tubes in service.

For example, the right resistance to properly biased the JFET's etc. If you open the preamp, you will see that there are rheostat's (blue) on some junctions that their primary fuction was to "tweaked" or "optimized" a certain parameter(s) (i.e. voltage or current)to voiced out the preamp.

...just a thought...
slowhand OP
605 posts
 
I tried a GZ37 in my Syrah and did not like it at all. I experienced the same thing Fiddler did. My favorite rectfiers are Bendix 6106, Metal base GZ34, and Tung Sol 5Y3 (I know it will shorten the life of the other tubes). When I use it, I take David's advice and put in a GZ34 to warm up the pre and then turn it off, switch to the 5Y3 and turn it right back on so that the other tubes are already warmed up. I only do this on weekends when I will leave the pre on all weekend. There is something magical about the sound of that Tung Sol 5Y3. I will try the Mazda 5Y3 soon.
simon74
216 posts
 
Hi all,
thanks Slowhand for the pointer re the Bendix.
What I'm confused about is the 6106/5Y3WGT directly heated, like the Tungsol or is it indirectly heated ala the Mazda ?
Sorry for being thick but I'm new to tubes and really don't want to go pulling them in & out all the time.
I'm amazed that the rectifier makes such a difference - any other pres I've had were untroubled as long as the rectifier was functional but the line stage tubes made readily obvious differences to the sound.
Thanks Simon
slowhand OP
605 posts
 
Hello Simon74,

The Bendix 6106 in indirectly heated.
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