Hi Reb,
I will agree with Swampy. I started out with the same tubes as you in my kit, and the Black Treasures would be hard to beat at that price. I put in the originals just for the heck of it recently, and they sounded anemic by comparison. Less body, and thinner bass notes, plus more of a feeling of left, right, center, as opposed to a more filled-in wall of sound.
I know from Charles and others that the higher end tubes like Tataksuki and others are considerably better, but again, at this price, it's a great upgrade.
I will agree with Swampy. I started out with the same tubes as you in my kit, and the Black Treasures would be hard to beat at that price. I put in the originals just for the heck of it recently, and they sounded anemic by comparison. Less body, and thinner bass notes, plus more of a feeling of left, right, center, as opposed to a more filled-in wall of sound.
I know from Charles and others that the higher end tubes like Tataksuki and others are considerably better, but again, at this price, it's a great upgrade.