Actually in EC 2A3 the rectifier tube does affect sound. Thus far I found Sovtek GZ34 more spacy and a bit more noisy and NOS Philip Holland double d-getter more power, quieter and warmer. I am guessing the larger difference came from the fact that unlike EC BA which has double rectifications so min. this affect. I think it is probably worth experimenting with the rectifier tube on EC 2A3.
Edited by SleepyOne - 3/9/13 at 12:26am