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QSC K12 vs K12.2 specs

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Mark Wilkinson:

--- Quote from: Andrew Broughton on July 23, 2017, 05:45:31 PM ---It's more commonly agreed that 0.5 to 1db is the smallest change in level discernible by humans.

--- End quote ---

I share this opinion.  I think 3dB is a big change.
 
But in full disclosure, I also think 6dB is a perceptual doubling,
.....and that the commonly claimed 10dB perceptual doubling is based on a historical misunderstanding of pioneers' work, like Fletcher-Munson's,
a misunderstanding that has been repeated time and again until accepted as "true". Sorry to swerve.......

Mac Kerr:

--- Quote from: Andrew Broughton on July 23, 2017, 05:45:31 PM ---It's more commonly agreed that 0.5 to 1db is the smallest change in level discernible by humans.

--- End quote ---

Most people without listening critically will not hear .5 or 1dB, most will hear 3dB.

Mac

Corey Scogin:

--- Quote from: Mal Brown on July 23, 2017, 01:40:15 PM ---Form a systems architecture standpoint, QSC's new amp topology makes sense.  Lows need more power.  Highs, less...  if they can bench it, they can use it to market.

--- End quote ---

More accurately, the previous design didn't make much sense if indeed the HF amp mirrored the power capability of the LF amp.

kel mcguire:
I've yet to hear the new series so I'll reserve my opinion. Regardless of the amp specs, QSC isn't unaware of the thousands of users who wanted a bit more headroom before that clippy, fizzy sound set in. If there is 3dB more headroom on the series and a re-thought DSP, I'd be pretty happy. And considering the price points haven't changed, these might be surprising. The built in EQ and delay on the series is really nice too.

Bill Hornibrook:
Yeah I've got more faith in the updated compression driver, new power amp, and contemporary DSP than in peak SPL and power amp numbers. The old K series is what.... 8 years old now? It was definitely time for QSC to re-work their very popular powered speaker line.

I haven't yet heard of a direct A/B comparison of old K to new at limit, but I would expect the new to sound more composed just because this is QSC. It would be awesome if someone with both would do that.

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