Made it,i'm pretty tired it was a long testGood idea, good entertainment! Keep us posted.
singer preferred the Phaedrus gold but their standard vf14m is very good too. All fully compatible with u47. Grosser tube had lower gain and more noise,but it is a real tube closed into a metal box, so it should be normal.How close are Phaedrus Gold to the original VF14? ThanksMade it,i'm pretty tired it was a long test
Each different, even the original Telefunken vf14's
I would need 2 fully original u47 to confirm this,but I have only 1 at the moment. Anyway all usable, I can send you the project if you want to listen it. I guess the Phaedrus will work better with M7 capsules, as the overall tone is a bit brighter than the old TFK tube. The cheaper Phaedrus VF14M sounds very smooth it is a good compromise I think.
Interesting, thanks for feedback. I ask myself at the moment how a EF800 or EF12k would compare to the VF14 and its substitutes? (In a real U47) Again, we would need two U47 for this blindtest.Each different, even the original Telefunken vf14's
EF800 is lower quality for me(I built like 20clones) EF12k is already too expensive, I used them for RFT CM7151 restorations. EF12 sounds different too. I found which tube Andreas used but they asked me to not reveal,anyway it is a near extinction special submini tube.(I exchanged some noisy ones,but overall all were a little noisy
.)maybe the same as the one Telefunken US uses?EF800 is lower quality for me(I built like 20clones) EF12k is already too expensive, I used them for RFT CM7151 restorations. EF12 sounds different too. I found which tube Andreas used but they asked me to not reveal,anyway it is a near extinction special submini tube.(I exchanged some noisy ones,but overall all were a little noisy
No that is we407/408 I guess from the pics on the net,this is different,specs are closer
Thats fine with me. What would be a world without secrets?
For me the cheaper phaedrus works well,I Guess the gold version is better for m7, while their standard vf14m is good for k47 capsules ,here is a sample(with k47):Thats fine with me. What would be a world without secrets?
Probably a hard question to answer, but what is your favorite replacement tube for the Vf14?
Thanks for the demo!
If you work with the bias of EF12 (especially lower the plate resistor) it's much closer to VF14 than Phaedrus. Pheadrus sounds good but it sounds solid state. I also think a well biased 408a/6028 sound better than Phaedrus but they are often too noisy and the quality varies between different brands.EF800 is lower quality for me(I built like 20clones) EF12k is already too expensive, I used them for RFT CM7151 restorations. EF12 sounds different too. I found which tube Andreas used but they asked me to not reveal,anyway it is a near extinction special submini tube.(I exchanged some noisy ones,but overall all were a little noisy
I prefer the other steel tubes than ef12(13/14 for instance). 408 I never tried.
It would be great if you would share your experience with us here.
Ahh, that's a shame! I always thought their products looked both interesting and well thought-through.
That is an older company, they use another company for selling their products.
I can't find any references to a 'new' company on their website?... and 'Phaedrus Audio Ltd' was definitely dissolved on 26.7.22 ... See HERE
I'm not a lawyer haha, just checked my previous invoices,and actually those were all came from different company years back,not this LTD. I spoke with them not so long time ago,they said they will continue.
I'm sure things are probably OK -- it just seems a bit strange that they haven't yet updated their website to announce the new company.... and how (or rather if) this change affects existing orders and warranties in any way?....
Ok let's close this rumour,so I asked Richard@Phaedrus Audio:
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