Originally Posted by penngray
First, I have never found any definitive research data that concludes the Sierras are the best speaker and compare to much more expensive speakers. Amazingly, I could pick 10 popular brands bantered on here daily that have the same subjective opinion behind them. Sierras are fine but there are many other choices in the same category and that category honestly is not HT
If you only care about HT then there are two things you require above all else. You will want Constant directivity (uniform off axis response) and you will want the best dynamics available (speakers need to have sensitivity somewhere above > 93dB).
Once you learn about those then you can list the speakers that will meet that criteria
. Of course you will realize that the list is extremely short in the lower budget ranges
because the industry does not get it yet and you might just end up compromising Dynamics and uniform off axis response
by going back to Sierras or similar.
"compromising Dynamics and uniform off axis response
". -- Did you mix up constant directivity and uniform off axis response? Again, in a HT setting, you won't be that far off axis. So again, what's the big advantage to a speaker with uniform off axis response? 15 degrees seem quite uniform to me on the Sierras, how off axis do your speakers are in your HT or most home HTs? 30 degrees off axis? 45 degrees off axis? What's the big advantage of Constant directivity in a usual HT setting?
Originally Posted by penngray
Research Constant Directivity and what it really means. Domes do not have constant directivity unless they are placed in a waveguide. Those measurements tell me its not great off axis.
You're looking at horizontal right? Again, might depend on your room. You sit more than 15 degrees off axis from your speakers?
The sierras are complete crap for dynamics. Lets do the numbers....
A common HT distance is > 10 feet
Movie peaks are easily > 20dB
You want 80dB at your listening position so you need 100dB peaks.
you tell me what amp power you need so you are not clipping and then tell me what compression those Sierras have at the peaks! Heck, we are not even asking for reference levels because these speakers can not do reference levels period.
Lets say we take the 87dB in room sensitivity rating. And two 200$ amps (Behringers A500), for 400$ total, rated 600 Watts into 8 Ohms , so let's be conservative and divide it by 2, 300W.
So you get like 25dB gain from amp, and lose about 10dB from the distance, 3dB from sonic reinforcement, you're at 105dB. With 400$ worth of amps, seem to make the peaks at 100dB. Amp shouldn't be clipping at 1/2 rated power. Compression, I don't know.
If its $300 in DIY Then my latest DIY designs are superior to anything banter around in this thread.
The OP didn't ask for DIY speakers. You didn't mention DIY speakers either. If you consider the 50 hours you'll spend on your speakers vs reasonable 20$/h salary, then you're already at 1300$, which almost doubles the price of the Sierras or quadruple if you consider used... Then add the price of the tools... The ease of ordering a speaker online vs sweating for hours and praying to have something decent (that you don't screw up) at the end... Or compare to used speakers going at 1/2 the price... Your 300$ speakers might not be looking so good! Compare apples to apples. What other ID or B&M speaker at 1100 (price paid by OP for 3 mains) would be better for HT in your opinion?
Heck, I would put up the Tannoy V8s I just pulled off ebay for $100 each against the sierras in terms of dynamics and Constant directivity.
-3dB point at 85Hz... And I'm sure it's such a fantastic speaker in all way superior to Sierras... See, you're just being silly now! I'd put your tannoys against an EUROLIVE VS1220 600W 12" PA Speaker for $54.60
too... Still, I'd not trade any of these for Sierras, and neither would I want them in my HT room, even if they have better dynamics and Constant directivity... These two things do not make good speakers, nor do they make good HT speakers either... (although I respect your opinion that you think they do... And I see that it's an advantage, but definitely not the most 2 important IMHO.)