Do all of the Boss DD series pedals have "trails" when you bypass them? they don't, which ones, and versions, do? If I want to get a DD-2 to go with my DM-2, but I want a Delay that has "trails". Sorry if this isn't too clear... Thanks in advance.
If you mean does the delay go on and fade out after the effect is switched off the DD-3 certainly doesn't... so i wouldn't imagine the DD-2 does either as it's the earlier version....i don't know about the 5/6/7 or the DD-20 .....
The DD5 does. I used to own one... and it certainly trails (otherwise I wouldn't have bought it.
The DD20 is better, as you can trail one delay, switch to manual and play another delay over the top. Depending on how high you have the feedback, you have you can create a lot of complex overlapping soundscapes with just a guitar and it's volume.