Aerial 7B amp recommendations

@adg101, I do not completely understand the principle of bi-wiring but my speakers came with pre-configured Transparent brand "bi-wire". In other words there is one set of terminals at the amp end and two sets at the speaker end. The speaker has two sets of terminal connectors and the two sets of cable terminals are connected to those right to right side and left to left side.

With that being the case it is very unclear to me what additional purpose jumpers would serve. The Nordost article says it can make a difference but seems to suggest that is true only if your speakers have less than desirable crossovers. I'd be surprised if Aerial skimped on the crossovers.

@n80 If your cables are a biwire set as you mentioned you don’t use jumpers. A lot of people prefer to use a single run meaning amp and speaker end has only one set +/- and then use jumpers at the speakers. In your case make sure the metal jumper straps are removed on the speaker binding post.

According to Stereophile measurements for both the 7B and DNA-1, your amplifier should have no trouble driving the speakers up to and near their full potential. Both were tested and measurements are all available online. That said, if you’re really itching for an amplifier upgrade, and depending on your budget (and your current preamp), a Krell FBP series amplifier may be an improvement.

@adg101, thanks. Jumper straps were missing when I got the speakers. 

Late to the discussion, but agree w/the last couple comments regarding jumpers. I tried several 5 to be exact .. (prices approximate)
- AntiCable level 2.1 about $50-
- an eBay audiophiles take on Dueland wire w/silver banana's, $99-
- Tuneful Cables, $50-
- Maze Audio reference $50-
- AntiCable Signature jumpers $175-

All were burned in 20-30 hours before my A/B'ing .. Hands down all the cable sounded more expansive and natural than compared to the brass straps on my 7b's.The Dueland audiophile made (brand forthcoming) were terminated w/silver solder and silver plated banana's. They were brighter, with good stage characteristics, balancing out the warmth of the Aerials, but left a huge dry gap in bass performance.
The Tuneful cables performed well but were not a standout.
Both version of the AntiCables offered the best overall performance, with the Signature version way outperforming all. Paul of AntiCable described to me a long search to find the right solder compound to terminate the his best wire to the spade/banana.

For background .. I am running the 7b's w/a Counterpoint NPS 400 (200 wpc @ 8ohm & 400 @ 4 ohms) recently re-tubed by Sam in Michigan w updated Silver level HiFi Tuning fuses (Directly fed by Oppo 205). With burn-in time it is a SWEET combination blowing my walls out with great depth and staging.
I do have to put a plug in for Bionic Wire InterConnect (Wow!) using XLR from Oppo to Counterpoint. Using Mosaic speaker cables, Shunyata everywhere (Python/Delta NR) except for a Darwin Cable Silver power cord into the amp .. replaced 1 of my Pythons nicely.