Your questions are a little confusing and overlapping but I think I know what you're asking.
First, as long as it's in good working order and you make it sound like it is, I highly recommend you use the the Citation to power your front right and left speakers. There are no cons and many pros to this configuration. You will have much more good clean power going to the main left and right which will give you much greater dynamics. This configuration will also enable the receiver to devote more resources to the other 3 channels so they will benefit as well. There are too many pros to list and as I said no cons so just hook up the amp and don't give it another second of thoughts.
The Audyssey question isn't so cut and dry. According to Audyssey there's nothing wrong with increasing the crossover point, but they don't recommend reducing it. To understand why, you have to understand a little how Audyssey works. I'll try to explain in simple terms. When going through the set up process Audyssey determines, based on the current speaker placement, how low it feels your speakers can go. In your case it determined 40 hz, which is one step above full band. After the results are calculated and saved you can go in and change the crossover point if you like. With the crossover for your mains set at 40hz Audyssey will apply it's filters down to 40 hz on the front left and right channels and below 40hz it will apply the filters to the subwoofer channel. If you set the crossover higher than 40hz Audyssey will make the necessary filter adjustments. However if you set the crossover to full band there will be no filter applied to the front left and right below 40hz. It can't filter below 40hz because in set up it didn't hear enough below 40hz to know how much filtering to apply. The most common negative result with setting the crossover point lower would be boomy lesser controlled bass.
Because of this most people would recommend leaving it at 40hz (some will say to increase to 80hz) and let the subwoofer handle the rest. Since you are only one step up from full band I say set it at full band let your ears tell you if it's the right thing to do. If it sounds too boomy (not tight enough) for you then set it back to 40 hz and let the sub do the rest. I'm not familiar with your speakers but you could also try moving them a little closer to the wall and rerunning Audyssey set-up.
I am in the same boat. My speakers will not go lower than 40hz according to Audyssey, but they definitely will. For music I set mine to run full band with no subwoofer; I've just never been able to get my sub to blend well enough with my speakers to run with a sub on music. I couldn't be happier with the results.
I highly recommend checking out this thread for tips on Audyssey set up. You'd be amazed at the impact some of the little tweaks will have.
http://www.avsforum.com/t/795421/official-audyssey-thread-faq-in-post-51779
First, as long as it's in good working order and you make it sound like it is, I highly recommend you use the the Citation to power your front right and left speakers. There are no cons and many pros to this configuration. You will have much more good clean power going to the main left and right which will give you much greater dynamics. This configuration will also enable the receiver to devote more resources to the other 3 channels so they will benefit as well. There are too many pros to list and as I said no cons so just hook up the amp and don't give it another second of thoughts.
The Audyssey question isn't so cut and dry. According to Audyssey there's nothing wrong with increasing the crossover point, but they don't recommend reducing it. To understand why, you have to understand a little how Audyssey works. I'll try to explain in simple terms. When going through the set up process Audyssey determines, based on the current speaker placement, how low it feels your speakers can go. In your case it determined 40 hz, which is one step above full band. After the results are calculated and saved you can go in and change the crossover point if you like. With the crossover for your mains set at 40hz Audyssey will apply it's filters down to 40 hz on the front left and right channels and below 40hz it will apply the filters to the subwoofer channel. If you set the crossover higher than 40hz Audyssey will make the necessary filter adjustments. However if you set the crossover to full band there will be no filter applied to the front left and right below 40hz. It can't filter below 40hz because in set up it didn't hear enough below 40hz to know how much filtering to apply. The most common negative result with setting the crossover point lower would be boomy lesser controlled bass.
Because of this most people would recommend leaving it at 40hz (some will say to increase to 80hz) and let the subwoofer handle the rest. Since you are only one step up from full band I say set it at full band let your ears tell you if it's the right thing to do. If it sounds too boomy (not tight enough) for you then set it back to 40 hz and let the sub do the rest. I'm not familiar with your speakers but you could also try moving them a little closer to the wall and rerunning Audyssey set-up.
I am in the same boat. My speakers will not go lower than 40hz according to Audyssey, but they definitely will. For music I set mine to run full band with no subwoofer; I've just never been able to get my sub to blend well enough with my speakers to run with a sub on music. I couldn't be happier with the results.
I highly recommend checking out this thread for tips on Audyssey set up. You'd be amazed at the impact some of the little tweaks will have.
http://www.avsforum.com/t/795421/official-audyssey-thread-faq-in-post-51779
