Well, yes you are in the correct forum.
Your question seems a bit vague, and there could be several meanings, but here goes.
Your receiver is most likely the bottom of the line receiver outputting around 30 watts per channel. The A-7040 was the lowest wattage integrated amp of that series, 50W or so, that also included the 7070 and the beastly 7090. I had one several years ago, along with the matching T-4040 (?) tuner. I presently have the preceeding series set, the A-7 and T-9 tuner. I think all Onkyos of that vintage were well built and punched above their specs.
In other words, as far as the amplificaton goes, the integrated wins.
In another sense, as far as matching the receiver to the amp, the receiver has no pre-amp outs and the integrated has no main-ins. I guess you could connect the tape out of the receiver to the tape in of the amp, but you are only going to be able to use the am/fm section of the receiver. If that's what you're thinking, you would be best in looking for the matching tuner that I spoke of earlier.
Many see no future in and/or have no access to acceptable radio broadcasts. I'm not in that boat as there are several quality FM stations in the area, and most of my listening is to the local college station.
Hope this helps, and good luck.
