This is where the confusion started.

[Grand Wazoo]

I thought I had been imagining things, but I did read it somewhere that the 25th Anniversary bass also had a chambered body.

Here is what it says on the Thomann website link here:
MUSIC MAN 25TH ANNIVERSARY BASS 5 HSS - U.K. International Cyberstore

MUSIC MAN 25TH ANNIVERSARY BASS 5 HSS
Music Man 25th Anniversary Bass 5 HSS E-Bass, 5 string, Ash with Mahogany Tone Block Body, Body with Tone Chambers, Quilted Maple Top, Maple Neck, Matching Hedastock, Rosewood Fretboard, 1 Music Man Humbucker and 2 Music Man Single coi Pickups, Active/Passiv Switch, 3x Pickup switch, Long Scale 864 mm, Frets 22, Nut width 44,5 mm, Finish Venetian Red Burst, incl. Case

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Have they got it wrong or is it true? Who can confirm that? Thanks

 

[Smallmouth_Bass]

In the teaser thread when it was being developed, the initial plan was to chamber it and I believe they tried it. I think they ended up liking the complete solid body sound better so that's the way they ended up making the basses.

If I am not mistaken, the 25th guitars are chambered.

 

[Big Poppa]

yeah the bass just worked better solid

 

[Grand Wazoo]

Thanks for clarifying BP.

It's a great bass, unbeatable and no.1 in my list

 

[walleye]

If I am not mistaken, the 25th guitars are chambered.

yeah they are