Yammy 4600, will it be good enough for my LSi's?

Ahmedmo

Hi guys, i have LSi 15s, Lsic, Fxi3s & a PSW505! Will my new RX-V4600 boost them good? it didnt arrive yet ... what do you think?

xsmi

Judging from this review, I think you will be ok. Having said that, at some point you might wantto look into some external amplification to really make them sing.

http://www.yamaha.com/yamahavgn/Documents/YEC/AV_Receivers/Review/REV_RX-V4600.pdf

george daniel

The LSI 15 is a power hungry puppy

MSALLA

I have the Rx-V2500 and it drives my 7's and Lsic ok. But I feel the center needs more power and will purchase an amp before I get new fronts (9's or 15's don't know yet) The 15 should see at least 200watts of high current power.
It will work but it's like driving a Ferrari witha Vett motor. Pretty damn nice, but not what it could be.

shack

High on features...questionable power. Drops to about 40 wpc with all channels being driven when benchtested. I would question if it has enough high current power for the LSis.

MSALLA

shack wrote:

High on features...questionable power. Drops to about 40 wpc with all channels being driven when benchtested. I would question if it has enough high current power for the LSis.

I didn't see that on the test. Is that result from the audioholics test?

wingnut4772

Having previously owned LSIs I would not power them with a receiver. It took a 300 watt (600 @ 4 ohms) per channel Earthquake Cinenova amplifier before I was really pleased with their output. Especially for movies.

shack

MSALLA wrote:

I didn't see that on the test. Is that result from the audioholics test?

From Secrets of Home Theater and High Fidelity:

The 4600 has seven channels, and is specified at 130 watts RMS per channel into 8 Ohms. However, the specs show the power rating in pairs, and as you will see in the bench tests, the 130 watts is indeed delivered to two channels, but drops to around 40 watts RMS when five channels are driven. This is still OK though, as the rear channels and side channels almost never get a lot of sound going to them, so most of the time, you will have plenty of power available to the front, where all the action is located. However, down the road, you might want to add a three-channel outboard power amplifier for the center and rear channels, if you like to play your movies and music loud. Also, modest power output is very common with mass market receivers of all brands, and we expected this result when we put the 4600 on the bench and drove most of the channels.

What this tells me is that the RX-V4600 does not have a high current amp section that is best suited for the LSis. Will it work? Sure it will, but based on my experience, that AVR will not do the LSis justice.

MSALLA

I'm with you on using an amp for Lsis, I was just wondering where the 40wpc came from.If my spending was not on hold, I would have a nice amp in my line up.

xsmi

Wow. I wish I had seen that review before I answered. The review I linked to did not have anything in there like that in their write up.