Originally Posted by tomtoo
I have a couple rf-7 II models as front with RX-V3900, and speakers seem to not perform very well or with full range. Wondering how they would do in my home theater with new 3050 or 3060 model, as i remember after buying the 3900 that the bench test results were awful in 5.1 mode.
I had no issues running 7.1 with my RX-V3900,
but my system was bass managed with all speakers set to small,
..despite having full range capable Front Towers. My crossovers set to 80Hz for all speakers
and let my 4 powered subs (the Real work horses) take the lions share of the load off my AVR.
2400w/4800w Dynamic Bass power >
forcing an AVR with a 500watt power supply to play <80Hz.
I recently upgraded to an RX-A3050 for Atmos/DTS:X
(in addition to HDMI 2.0a and HDMI 2.2 HDCP for future 4K/HDR upgrades)
My old RX-V3900 powers my 4 presence (Height) speakers acting as a 4ch amp (multi channel inputs)
So the new RX-A3050 only drives my 7 bed layer speakers (2 towers and 5 bookshelf)
without issue and a Ton of headroom by utilizing Bass Management to send the <80Hz frequencies to my 4 powered subs.
If you're considering a 7.2.4 Atmos setup, you will need to add at least 2 channels of external amplification
So if you prefer to run your L/R Front towers as Full range, put a dedicated 2ch Amp on those,
and let the 3050 drive the remaining channels crossed at 80Hz and it would be fine.
The only reason I can see an RX-A3050 coming up short is if you don't want to use a good sub(s)
proper use of Bass Management, and are trying to drive 7 full range towers that have crap efficiency in a huge room.
You would be shocked just how many get the simplest steps wrong.
Bass management 101
If anyone thinks its bad when an AVR drops from 140wpc to 70wpc with all channels driven
with a torture test sine wave load is seriously miss-informed. The SPL difference is only 3dB
First, multi channel movies will never drive all channels simultaneously with the same signal
Second, even if they did it for a brief second, 140 watts is not twice as loud as 70 watts.
To get twice the sound level (SPL), would require 10x more power...700 watts, not 140.
If you really think you need
140 watts x 5 or 7 channels (for a 3dB gain)
get a dedicated external amp because NO AVR delivers that kind of power on its own.