I don't have experience myself, but a friend of mine has been using 6L6's in his VAC PA160 mkII monos. He recently switched back to the 6L6's from el-34's and made the following observations:
"I put the 6L6's back in last night, and they are a much warmer and softer presentation, much more relaxed. But I miss the tightness of the 34's, and sharper edges on all the transients."
Hope this helps. Happy listening. Erik
"I put the 6L6's back in last night, and they are a much warmer and softer presentation, much more relaxed. But I miss the tightness of the 34's, and sharper edges on all the transients."
Hope this helps. Happy listening. Erik