Tungsol replacement tubes kit for the Blackstar HT Series One 100. Standard set, selected for best all-around sound upgrade. The set includes the following tubes:
2x 12AX7 / ECC83 Tungsol
1x 12AX7 / ECC83 Tungsol Balanced
1x 12AU7 Tungsol
4x EL34B Tungsol Platinum Matched
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