I have and really like Sophia they have the sound you are looking for but Takasuki are probably the best, more detailed and rich warm…I have Takasuki 300Bs and they are spectacular… I have not heard the 274B… but I am sure they would be superb.
I would appreciate your advice on rectifier tubes
I have a complete tube system that uses 274B rectifier tubes but have never tried any others. My hope is to identify others that offer sweet highs as well as rich mids. I have researched the tube market to find NOS Mullards and others I have never heard of however I came across Sophia Electric Aqua II blue tubes.
Your advice would be appreciated. Thank you.
Barry
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