I have found after trying many different brands of modern production EL34 tubes that the SED Winged "C"s provided, what I perceived to be, a significant improvement in my Shanling SP80 amps. Tube rolling with used or NOS tubes can be a hugh gamble as Elizabeth pointed out. If you decide to pursue tube rolling for the small tubes find a tube seller who has a long term reputation. Purchases from some individuals can be costly and many times not very rewarding.
Tube recomendations for a newbie
I have just purchased a Mingda Mei Xing tube intergrated amplifier. I live in Shanghai, China. I'm new to tubes and the amp is supplied with Chinese tubes. I'm wondering if swapping tubes on this amp will provide better sound quality? If so, any recommendations? I believe the tube configuration is: EL34 x4(JJ)、12AU7 x2、12AX7 x2. The system will play mostly jazz, classical, reggae. Speakers are Wharfedale evolution 2 bookshelf speakers. Thanks...
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