Is Speaker design evolution stagnant


Based on what I read from speaker manufacturers, many use the same drivers but apply different crossover philosophies to achieve a particular sound.

My simplistic understanding is that while limiting the range of high or low signals , the remaining signal is corrupted ( phase inversions, roll off, etc.. ).

With today’s technology, why aren’t more speaker manufacturers using active crossovers to be connected after the preamp and sending exact spectrum signals separately to be amplified to each driver.  That would Eliminate all electronics inside the speaker cabinet except the drivers. Each driver gets fed only the signal that it works best at. No out of phase, half phase, quarter phase issues, no phase angle issues. 100% of the power goes to each driver without limiters to scale it back.  I think Bryston Model T Actives is designed this way ( don’t work for them and not pushing any product). Am I looking at it too simply? Do electronic crossover play havoc on signals the way inductors and capacitors do?

Some speaker manufacturers have gone half way with built in woofer amps ( Vaughn?)

Of course you would need a 3 channel amp for each side ( based on W/M/T config) or some variable of mono amps, whatever.



jacksky

Showing 1 response by cd318

Loudspeaker design could be said to have stagnated as there doesn't appear to be much difference between the boxes of the 1960s and the boxes of the 2020s.

Ok, the boxes might be smaller and slimmer, but they're still usually cone/dome drivers in boxes.

The age old problem is that in order to sell in viable numbers they will have to be domestically acceptable.

Given that maybe we could say that development has been rather constrained by circumstances rather than stagnating by lack of effort or will?

Perhaps the only real significant development has been the emergence of active designsalong with the increasing integration of subwoofers.

These days virtually every single professional audio monitor has its own built-in amplifier.

The main differences cited are usually accuracy (by far in favour of pro designs!) and the prevalence of near field designs in the professional world.

Perhaps there is some convergence between these two approaches, as there should be with the use of sophisticated measurements available nowadays, but few professionals would consider using a domestic loudspeaker for their work.

[Not even the truly iconoclastic Quad ESL].


The reverse might be said for many audiophiles, but that situation might change with the emergence of more measurement based sites like ASR.

Perhaps as a direct consequence we might see more consumers gravitating towards pro designs in future?

Nevertheless such sites still favour cone and dome drivers in boxes.

So perhaps those early loudspeaker pioneers were on the right track after all?