Originally Posted by engineer0928
I'm looking to upgrade my HT in my large living room (open floor plan with kitchen, living, dining and entry, all in about 40x40, main living area about 19x19, 8 foot ceilings all around). I've researched and discussed extensively, and this is not a question about what speakers I need to actually fill my area with sound (need bigger towers, very large speakers, more power, etc; none of these are options right now).
Wow, thats a lot of space! I just moved from a 40x20 HT room and I have A5 L/R, and A1 centers and surrounds. I love the sound quality of the Arx I have ( 1st gen before the Lane/Chase merger) and I love that aspect, however in that small room I would have liked more umph from the smaller A1's. The A5's kept up but thankfully I had a healthy Sherbourn SR120. Specs for the SR120 are:
left, center and right channels are rated at 120/175 Watts into 8/4 Ohms
the two rear and two side channels are rated at 75/100 Watts into 8/4 Ohms.
From 20 Hz – 20KHz all channels driven.
AND With no more than 0.05% THD.
Your Yamaha RX-V683 is
Rated Output Power [y](1kHz, 2ch driven)[/y]
My receiver is providing power across the whole range while the Yamaha is only giving you 105 W (8 ohms, 0.9% THD) and Rated Output Power (20Hz-20kHz, 2ch driven) is actually only 90 W (8 ohms, 0.06% THD)
The power supply on the Sherbourn is a monster and I ran a Denon and a Sony AVR before the SR120. Both were in excess of the 100 watt range but the sound quality is night/day difference. It was enough that the wife noticed the sound quality difference. I was in the basement swapping AVR's and she yelled down the stairs asking what I did???? I told her the swap, she mentioned "Oh l like that a lot better". She doesn't normally give 2 sh$ts but she noticed the quality change, as did I especially at high volume. No more clipping or sounding harsh.
In that large space, IMHO I'd go w/ the A5's. You'll never regret having the extra umph they provide. They sound stellar but being able to really let them sing in demanding movie moments or when you're trying to really crank your favorite song, the A5's will NOT disappoint.
Originally Posted by engineer0928
However, I have my speaker choice narrowed down to a few, the A1.5 being a top contender. What worries me is the sensitivity. My receiver is a Yamaha RX-V683. To be completely honest, I've really struggled understanding power specs. Basically, if my use is 80/20 HT/Music and I'm running a 5.1 system off this receiver (A1.5 as LR), will I have enough power to get the 1.5's loud? I don't have a need for blistering levels, but enough to hear music around the house and to add some excitement to movies.
Really I just want to make sure that if I boost the levels on the A1.5 to where it sounds good that I won't have issues with my receiver. Anyone had issues with the low sensitivity?
Add on question - I've seen so many good reviews about the A1.4, but not a whole lot on the 1.5 since it was just released. Any obvious negatives or massive improvements to note?
Thanks for all of your help in advance!
IF you really want to add excitement the A5's take it to a whole other level. If I could tell myself in 2013, I'd say order A5's L/R and the larger 2.4's for c/surrounds. The great thing about the A5's, is that they sound clear at nearly any volume. I can assure you any receiver trying to push small book shelves " to hear music around the house and to add some excitement to movies." isn't gonna happen in a 40x40 room.
Spend the money once, get the A5 towers L/R and the 2.4's for Center and surrounds. You'll never regret having "too much speaker" but you'll hate having not enough. The sound quality and the dynamic ability will be lost if you go w/ small book shelves. I've heard bookshelves then heard my A5's and I'll never go smaller again. The extra sound affects you're able to pick up from both movies and music w/ the A5's will make it worth while.