Aric Audio Systems Unlimited Preamp

Hello! I wanted to chime in regarding the remote. I do offer a remote control option on all of my preamp models. It is based on an ALPS blue velvet pot with a motor behind it, controlled by Phillips microprocessor which are mounted on a small PCB. It is a $165 option. On the Transcend 6SN7 Line-stage it is a $185 option- as I also need to add a separate 12 volt power supply to power the remote processor board (the 6SN7 operates on 6.3 volt heaters so I need another power source). The remote controller itself is a simply 2 button remote controlling Vol Up and Vol Down. You are more than welcome to ask here, and also feel free to contact me if you have any other tech or build questions! Best regards, Aric

@rocray - I definitely second what Kalali posted regarding the equipment on either side of the stream having a large bearing on what tubes may sound best in the Unlimited. I want to also suggest the Gold Lion 12AU7, and 12AX7 (I haven't tried the GL 12AT7, and am not sure if they make one.....they must though?). The Gold Lions I've tried so far have had very good definition to them- without leaning towards too much emphasis on one frequency or another. I found they have a very balanced presentation, however each does provide just a little "coloration" which I find to sound very complimentary so long as the rest of the system is fairly balanced/neutral. I hope this helps! Aric 

Rocray,

I have some Sylvania JAN 5751's that sound very nice in the unlimited.  The 5751 bring out the mid-range and the bass a little bit more and are supposed to have less gain.  They're very nice.

 I also have some Mullard 12a x7s. For all they're hyped up to be I didn't exactly find them all that great.  Maybe I just need more time with them.

@aricaudio,thanks for the recommendation on the signal tubes. I just popped in a pair of new Mullard 12ax7's. I find them to tighten up the bass a bit,and bring the mids just a smidge forward. So far they seem to work nicely. Always trying to kick it up a notch!

@jgoldrick,thanks for your recommendation as well. Funny how different things work for different ears. I will definitely look into a pair of the Sylvania's. I swear,this hobby is a sickness. ;)

Look here and scroll all the way down.
I found this chart to be pretty darned accurate . Maybe it will help some of you here .
This is for NOS tubes not new stock. 
https://tubeworld.com/12ax7.htm