Re: NPD: 1986 Boss DD-2.
The old DD-2 actually sounds alot like a 2290.
Anyways the construction is like with BBD chips, analouge signal pathway with the delayed signal mixed parallel along with the normal signal.
So it does not travel through a converter, only through the chip the signal is transformed, then mixed with the original signal on the way out.
The old chip has certain hazy dreamy sound to it, could be because of the 12bit or something else, but it is a rather pleasant sound if you like that.
It is not as percussive as newer more "accurate" delays.
And it is great fun using along side other delays, it blends well with others.
I have some delays that are even more verby and distant sounding, and togther with the dd-2 it is soundscape heaven, or mix it up like we did in the 80's with an all analouge echo...kinda like an Andy Summers sound.
Found a video of the DD-2 and TC-2290.