I'm a definite novice, but just finished wiring my Stella amp. Yeah. I was hoping you could provide some information on what speakers are appropriate. I wired it to a few I had around and noticed big differences. First, I wired it into a 4 inch 10 watt 16 ohm speaker from an old television. To keep it clean, it had to be almost inaudibly quiet. Otherwise it was extremely distorted. Then I wired it into a 4 inch 10 watt 8 ohm speaker I have in a different cigar box amp kit. It sounded good. Then, for fun, I clipped it to the 8 inch 10 watt 4 ohm speaker in a Fender Champ replica. There it probably sounded the best, but I'm not sure how much of that is due to the size and enclosure.
So again, as a novice to all of this, how does speaker impedance affect the amp sound, and what do you think is the ideal for the Stella? Is there anyway to damage the amp with the "wrong" speaker?