Yeah, they are definitely different product lines, but Husqvarna does own the Poulan brand. However, I don't think Husqvarna is really the quality brand that it once was either. A lot of their stuff just looks and feels cheap and the quality seems to be average at best.
Just an example, my wife's grandpa bought a Husqvarna trimmer that had a one year warranty. Of course, he never even took it out of the box until one day when I was over there and decided to trim some weeds for him. By then, he had it over a year so the warranty had expired. I put gas in it and it ran great. I used it for a while, then shut it off for a few minutes, refilled the gas tank, and when I went to start it again the recoil broke. Of course, it's out of warranty and the parts are going to cost nearly what he paid for the trimmer in the first place. So now he has a trimmer with less than an hour of use on it that's junk and not worth fixing.
Just an example, my wife's grandpa bought a Husqvarna trimmer that had a one year warranty. Of course, he never even took it out of the box until one day when I was over there and decided to trim some weeds for him. By then, he had it over a year so the warranty had expired. I put gas in it and it ran great. I used it for a while, then shut it off for a few minutes, refilled the gas tank, and when I went to start it again the recoil broke. Of course, it's out of warranty and the parts are going to cost nearly what he paid for the trimmer in the first place. So now he has a trimmer with less than an hour of use on it that's junk and not worth fixing.