Thank you for viewing. YAQIN MC-13S push-pull integrated stereo tube amplifier, tubes: 12AX7*2, EL34*4, 12AU7*2. Sound output has been confirmed. Vacuum tubes: JJ EL34 x 4 + ECC83S x 2 + Electro-harmonix 12AU7A/ECC82 x 2 Due to the product's age and use, please understand and carefully consider bidding. Please bid only if you understand from the images. Please judge the condition from the images. Please note that this is an NCNR (No Claim, No Return) condition. Please bid with full understanding. Even if the item is unopened and unused, it has been in someone's possession, so please refrain from bidding if you are looking for a perfect product or are very sensitive to condition.