One of my standard recommendations is always to get the audio rack away from between the speakers. The development of the soundstage and imaging is always better - for any loudspeaker. Specifically, if a rack is absolutely needed between the speakers, keep it below the height of the midrange/tweeter. No more than 18" high if at all possible (or about half the ear to floor height).
With the G7f's that you have, a long, large, low record rack between the speakers won't hurt and will indeed help the bass development. The bass drivers fire outwards, and since your main source is analog (bass is mono) the bass drivers on the two speakers work together and in conjunction with the floor to simulate a 6-ft wide bass cabinet. Even with CDs, the bass is mostly mono anyway. That's how multi-miked recording is usually done.
So, having the records between the speakers actually help make the bass more efficient. You may have to turn down the bass gain as a result. When I designed these speakers, they were supposed to be WAF acceptable, living-room speakers that might have a large cabinet with a TV between them and having the woofers firing outwards. Hence, the bass gain is set so that it will be at the 12 o'clock position in that situation.