1. Home
  2. misc-audio
  3. 1191291379

Difference between Siemens CCa & 7308

Any significant differences between Siemens CCa and 7308 tubes of the same era? I know the CCa is highly regarded, hard to find and expensive. Seems the Siemens 7308 is a bit easier to find and slightly less costly. Does the 7308 give up much in performance? Thanks!
rja
dsremer
210 posts
 
I have them both and feel that the 7308 tube offers most of what a CCA has at less money, but as always, tubes are very system dependent.
tvad
9,467 posts
 
The top end of the CCa is more refined, and the CCa's image is larger. It's not a big difference from the 7308 (E188CC), but it's a difference that most people would discern, IMO. Whether the cost/benefit ratio of the CCa is worthwhile is something for each individual to decide.

The price of CCa tubes is only going to rise (along with other tubes). IMO, buying a pair to hear, and reselling if you don't like them, is a zero sum game.
audiofeil
4,011 posts
 
I'd opine that in most systems a good 6922 or 7308 will suffice. To fully appreciate the nuances of Cca, the other system components must be a very high level.

I use a pair of Cca in what many users would call a reference phono stage. Yes, and as Grant says, the presentation is more refined and the imaging is better but there is a price to pay for this.

I think most users would be totally satisfied with a high quality Amperex 6922 or Siemens 7308.

YMMV
More to discover