I've spent some time playing the Forum and have some observations. First it plays and feels great. The neck feels very comfortable and is carved in a shape similar to a Fender Jazz. The nice part about it is that it is very easy to play and it feels NATURAL....and comfortable..and no dead spots.
The bass weighs 8 pounds, 10 ounces and is the lightest bass I own. Remarkably the second lightest at 8 pounds, 14.5 ounces is my G. Gould ggi6 6 string. The Forum body shape is very natural feeling and pleasing to the eye.
Now...the electronics. I've played and owned quite a few passive P/J basses through the years including two of Fender's Hot Rod Precision basses that were part of the American Standard line at one time. The Fenders were nice basses and, as you might expect, played well and sounded nice. It sounded similar to a P and similar to a J and I sold them both. The second best sounding passive P/J that passed through my collection was a Squier Jaguar. Yeah, a Squier. It had Duncan designed PU's and stacked tone/volume controls. It sounded great and I only bought it because it was in a Fender tolex case and the case was worth what I paid for the bass and case. I sold the bass for more than I paid for the pair so I made money and got a free case.
Then there is the Forum. Turn down the volume on the J PU and it sounds exactly like a Precision. Not close....exactly. Blend in the J PU and you get a little more bite and more volume. Turn up the J and turn down the P PU and now this rascal sounds like a J bass with only the bridge PU on. Yeah, that Jaco tone. How did Peavey do this? I have no idea but I do know it must not be easy because other manufacturers fail to get this tone out of their passive P/J bases.
I am almost embarrassed to admit I bought this bass in a ratty gig bag and a Peavey Backstage Plus amp (it works just fine) for $100. This is as good a deal as the TL5 I bought for $415 delivered.