If any of you are looking for a good EF86 tube upgrade for the Eros, I highly recommend the Telefunken EF86 tubes I purchased from audiotubes.com. Don't get me wrong, I have nothing against the old stock Russian tubes the Eros comes with. They are solid performers for daily use that are quiet with a decent tone. HOWEVER, the Telefunkens are a definite upgrade. The mid-range is clearer and has a liquid/lifelike quality that is very captivating. The tone is also absolutely excellent. On some mediocre 70s rock records, I found that highs were both clearer and more vivid while also being less harsh to listen to.
I won't bore folks with a long winded review. Just consider me a very happy camper!
