If one channel is louder than the other.. What does that mean?

Tubes Asylum

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Hello,
I just bought a Cayin/Spark HA-1A Headphone amplifier. It comes with 12ax7, 12au7 and 2x 6p14p tubes(EL84 subs I think). A very good and versatile amp imho.
I tried changing the 6p14p tubes with some NOS EL84s. On some of the tubes I am getting channel imbalance ie. one channel is louder than the other. I changed the position of the tubes, and the imbalance is reversed. I assume the tubes are the problem.
Can I solve this problem without throwing away the NOS tubes? Is this the reason why you need to get matched pairs of power tubes?
Thanks beforehand for the help.
Cheers

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Topic - If one channel is louder than the other.. What does that mean? - adjieda 11:14:30 11/30/06 (2)

Had the same problem recently..... - dadbar 13:32:31 11/30/06 (0)

Answers: No and Yes - Chris O 11:46:33 11/30/06 (0)

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