Integrated amp for my Sonus Faber Guarneri

Deaf_in_left_eye.
I agree with most everything that Lloydelee21 has said. Without a doubt, the GH's are NOT going to plumb the depths of music reproduction. As I said before, they fall off fairly drastically below about 50hz. A sub would be a very good idea if you want to get information below that. Also, you would gain a better foundation to your music. This is absolutely correct. However, in your room, which is appx. the same size as my room and therefore very small, a sub is a very very difficult thing to integrate. I have not chosen this route, simply because I know that my odds of success are slim. Far better, IMHO, is to do what I have now done...that is add room acoustic treatments. If you look again at my system pictures, you will see that I have added bass trapping which has garnered a VERY BIG improvement. Nonetheless, I still think that your gear needs to be changed for you to begin to hear what the GH's can do.
I have heard Belden cable, which again IMHO, isn't even high-end. Like Lloyd said, even a change there would produce tremendous results. Unfortunately, the only way you are going to know if what we say is true, is to try out our advice and see. I can think of no other method.
IF you decide to keep the GH's, then I would say that they would be a GREAT FOUNDATION to a superb system. However, a foundation is all they would be.

Deaf_in_left_eye...

Fellow GH owner here. Like Lloydelee21 mentioned, try and get your hands on "ANY" subwoofer you can take home to try no matter how cheap or small (but do try for the best you can). I don't see how the G's are going to have the impact of what you are used to (12" woofers). Even a cheap sub will give you an idea. If this makes the difference you want, then by all means get a great sub, the G's deserve it.

The beauty of the sub/monitor way is you can put the G's where they image/sound best and put the sub where the bass will sound best. The G's go low enough so you can use a low x/o point (good thing) and then use the subs volume control to dial in the correct amount for your room/taste.

Good luck.

Maximum toe-in per Lloydelee21 made a huge difference. Such a dumb and simple thing. I think it drastically reduced reflections off side walls that I hadn't realized were so severe, giving me more "near-field" earview. Right now I'm enjoying a collection of jazz recordings (not classic string quartets), and they sound really good. Another thing I'm doing is not comparing to my other speakers, but just listening to these Gs for a change. The total lack of harsh notes, even with trumpets, is certainly soothing...

Next, I'll try to find any cheap subwoofer to try as "test of concept" per Onemug.

Thanks all, and please keep any more suggestions coming. I really hope to make these Guarneris work and keep them.

Hi Onemug, I agree with what you say about a sub. However, don't you think that in a room as small as Deaf's and mine that a sub is likely to overload the room and cause more problems than good?
I have actually heard the Yamaha's that deaf is referring to.. They are able to drop down lower due to their 12" driver, however, they are very much like the old JBL's of the past that could move air, but that was about it.Frankly, I'm not sure that Deaf is looking to get past that sound.
If he is, then a willingness to give up the lower reaches of the bass and accept the gains in overall music reproduction across the rest of the board is something that he may want to live with. I have accepted that in my system, because I am very sure that in a room of these dimensions only so much is possible. Without question in a larger room that can accommodate bass below 50Hz, then a quality sub with the GH's is absolutely warranted. Alternatively, as Lloyd pointed out, maybe a more full range speaker would be appropriate....if one wanted to give up a little accuracy and acquire more full range.
IMHO, Deaf is trying out a speaker that is NOT showing him its true self, Because he is essentially system building from the wrong end. Again, IMHO, he would be much better served starting at the front end and working from there. Even if it means leaving the Yamaha's in place for the time being!
As I said in my previous post, putting the GH's in the system would be a great foundation to a superb system, BUT a foundation only...Until the front end is sorted out along with the rest of the system, I don't think that Deaf will be able to hear what the GH's can really do.

Hi Daveyf. Yes it would be "very" easy to overload a small room with sub. You would want to be very careful with the volume control. Less is more.

I'm pretty happy with the G's just the way they are and usually don't use a sub with them but a few days ago I heard ELP's Lucky Man on the radio. When I dug it out of my vinyl collection, it just didn't sound as good as I remembered. I fired up the sub, played it again and it made all the difference. To me, that song needs to have the lower octave produced to make it right.

That's where the beauty of the sub comes in. Turn it on when you need it, adjust the level to your taste and "room size" and enjoy 20 to beyond 20k hz.

I could easily live with the G's and no sub for all the magic they do but if Deaf needs to feel that impact some of the time, this is what I'd recommend. And yes, he will be rewarded with future upgrades to his system. No matter what I put in front of them, they bring out the best of it.