I had the immediate and close predecessors to the TRIANGLE BR03 …. The active TRIANGLE ELARA and the passive TRIANGLE SENSA models in my $2500 “C” system : “and $4000 “B” systems. I enjoyed them both at their modest budget price-point. I have auditioned the BR03 and found them to be roughly comparable.in performance.,
BUT ….when the passives were experimentally paired upstream with a $14000 integrated amp and $14,000 source in my “A” system, that was when their budget standmounts audio performance now stepped up to a higher level.
No surprise here …The philosophy is clear. An affordable speaker with premium performance amplification (and source) makes more sense than an expensive speaker with a relatively cheap amp and source.
MY EXPERIENCE TAKEAWAY AND PERSONAL OPINION
Unless you are also committed and prepared to invest in a not-insignificant high(er) price-point and audio performance strata choice as your upstream electronics , I doubt that you wiIl experience any appreciable step up in audio performance just by swapping in the BR04 over the BR03.
And I certainly would not do it blindly in any case without auditioning them first.
FWIW.