Hello,
I've had my Io signature w/ volume controls for a few weeks now. The bass on this unit is not tubby or "tubey". Can't say why your fuse blew...do you have your Io connected to any power shaping device etc?... If the the fuse blew I would check the el34 tubes first for falilure as they do the most work and they may have had infant mortality. The Io should be plugged directly into a wall. I'm still learning about mine and have had zero RF problems in an area that has given me major problems in the past. So far delighted with the performance of mine. I've yet to substitute the stash of NOS tubes on hand as I'm still breaking mine in..... Good luck and keep us posted on your efforts to revive your unit.
AJ
I've had my Io signature w/ volume controls for a few weeks now. The bass on this unit is not tubby or "tubey". Can't say why your fuse blew...do you have your Io connected to any power shaping device etc?... If the the fuse blew I would check the el34 tubes first for falilure as they do the most work and they may have had infant mortality. The Io should be plugged directly into a wall. I'm still learning about mine and have had zero RF problems in an area that has given me major problems in the past. So far delighted with the performance of mine. I've yet to substitute the stash of NOS tubes on hand as I'm still breaking mine in..... Good luck and keep us posted on your efforts to revive your unit.
AJ