Favorite Tube Combinations


OK, I've never been a big believer in "synergy" except maybe as a last resort and never completely bought into the idea that this or that tube sounds different in your system than mine. Well recently I've been rolling 12AX7/ECC83/5751s and 12AU7/7316/5814s and I think I'm on to something.

After many recommendations of the CBS Hytron 5814a, I was able to acquire a nice NOSish pair. In combination with a Raytheon Black Plate it sounded gorgeous as long as I was using a SS CD player. When I hooked up my Cayin CDT17a (which uses Ei 6DJ8EGs) the sound became syrupy and sloppy, dark and really not too pleasant. When I switched to the 7316 / ECC83s (JJ copy of the Telefunken E803s), everything became clearer, focused with much better definition and life. (This combination with SS was just a bit much and a little dry in the mid-range for my liking). The Raytheon Black Plate still sounds beautiful as long as the 7316 pair is in the circuit but the ideal seems to be with the JJ, at least with the Cayin in the path.

I stand a changed man.

What combinations of tubes have you found to synergize?
anacrusis
This is pretty much exactly what I was responding. It's all rather subjective anyway...one mans ideal combination is another's one-tube-short of a circus. Sure, there's bound to be some general consensus in users, but if you don't fall under that preference it's obviously not a guideline for you to follow. There is no right or wrong.

Are you suggesting that manufacturers build their equipment with circuitry to accept whichever tube you might have a fancy for trying, which would be very interesting, if it were possible!

I use a front end component, the Modwright Transporter, which is VERY versatile to tube choice, and VERY sensitive to tube rolling (changes make a profound difference). Dan (Wright) deliberately designed the analog output circuit to be very versatile in this respect and is a tube-roller's dream in terms of shaping the sound to how you like it. The Audiocircle thread on this subject is currently 53 pages and is a testament to how great an effect tubes can have on a front-end output circuit. The most recent development has been Octal adapters to allow use of other tubes like the 6SN7 in the 8-pin output tube position (the adapters are made available by Wayne at the Boulder Cable Company). I can tell you from my own experience with this impressive front end that just changing the rectifier tube has a profound effect on the sound (5ar4, 5u4g, GZ32, GZ37, etc.). As I indicated in my previous post, I find the closer the tube is to the front end, the more effect it will likely have...changing the rectifier in the MW Transporter has a far more profound effect than changing a rectifier in any tube-rectified amp I've owned.
Regards Mrtennis and all,

Tube rolling is not only about chasing some ideal, it's about discovery. If you accept the idea of there being any value to subject evaluations of individual components then it's only obvious that one component's characteristics can compliment another. Tubes are components with individual characteristics! I can recommend that a Tung Sol 6SL7 compliments a KEN RAD VT-321 and that it sounds good to me and that you should give it a try. I have most of the usual suspect 6SN7s and keep them so that I may change with my mood, with the recording and to achieve a particular spin on the music. Subjective?, yes of course it is.
As I review the previous posts, I would agree that context is essential and that suggestions of tube combinations within a given device would be of most value to the listener.

By the way, the Moscode 401HR and the new 402Au can use quite a variety of driver tubes and will allow as Cyclonicman suggests, to a degree, an opportunity to mix and match not just manufacturers but actual tube types. One of the best pieces of equipment I have ever owned and wish I'd never sold was the 300. Anyone have a second hand 401HR for sale? Only $4 per ad +%.
I have most of the usual suspect 6SN7s and keep them so that I may change with my mood, with the recording and to achieve a particular spin on the music. Subjective?, yes of course it is.

Here's a few for your collection.