Thanks millercarbon. I've been also told that I may just be hearing some noise from the new tubes warming up for the first time and they'll settle in over the next 100 hours. We'll see and thanks for the welcome. I'll report back in a couple of days.
Tube amp crackle noise with pre-amp volume at zero.
I changed out some stock EL 34s with a brand x on my prima luna Dialogue HP amp. Within seconds of powering up the amp with the pre-amp volume all the way down, I herd a crackle like noise from the speaker. It was somewhat intermittent and random between the two speakers. I shut it down, checked all connections, and started again with the same results.
I returned the stock tubes and everything is normal. What happened? I didn't have the guts to increase the pre-amp output! Tube microphonics? (spelling?)
I returned the stock tubes and everything is normal. What happened? I didn't have the guts to increase the pre-amp output! Tube microphonics? (spelling?)