1) Roof mounted (further away). 2) Abbaka 1400 cfm. As I've said (ad nauseam) in other threads, we initially bought a 42" Zephyr Monsoon II insert, but it was so loud it drove us nuts and we finally decided to switch it out for a Wolf liner (rheostat control which is great), Abbaka roof-mounted blower, and an inline silencer. Now it's quieter on high than the Zephyr was on low, and I still get a ridiculous amount of enjoyment over listening to how loud it isn't. The Abbaka is pretty quiet outside the house too, which is nice.

The key to quiet is a remote (roof or in-line) blower with an intermediate silencer.

[The following is not an exhaustive list.] Abbaka and Broan/Best/NuTone (also used by Wolf) roof blowers provide quality performance in the blower assembly style that blows air down the roof slope from a low profile housing. Broan (perhaps still) and various commercial companies such as Greenheck provide quality performance in the commercial styles that are called up-blast and down-blast. These later types can be scaled to large flow rates, and may be better in circumstances where large depths of snow remain on the roof. (My Wolf/Broan 1500 CFM blower, however, seems to do OK staying clear in my NH environment on a winter-shaded 5/12 pitch roof.)

I am only familiar with Fantech as an in-line blower company playing in the residential market; I have no doubt that their products do as specified.

I am only familiar with Fantech as a silencer supplier; I have their 10-inch model. I vaguely recall someone else was now in that market.

The use of in-line blower with silencer vs. roof blower with silencer is dependent on how much space one has in the duct path. Blowers and silencers tend to be big units, and require some suspension schemes in an attic space. If an in-line blower is selected, there will still need to be a roof cap, configured in either the form of the Broan/Abbaka roof blower housing, or of a chimney of some sort with a down-blast blower housing-like cover. I'm not specifically familiar with these.

Don't forget that no air goes out of the kitchen up the duct that isn't resupplied, and this is the function of a make-up air system (MUA). The MUA system can be as big a deal as the hood ducting system. It is also a safety requirement, and in some locations a code enforcement requirement.

Keep in mind that when all is complete, the actual flow rate of the blower will likely be only about 2/3 of the blower's rated flow rate, for reasons I have explained in many threads. And the actual blower flow rate should approximately achieve 90 ft/min (90 CFM/sq. ft.) velocity across the entire hood entrance aperture below the baffles. So scale accordingly.

As usual I recommend downloading Greenheck's kitchen ventilation guide and reviewing at least the first 20 pages, keeping in mind that your task is to extrapolate the concepts to your residential situation, not select commercial hardware.
http://www.greenheck.com/media/pdf/otherinfo/KVSApplDesign_catalog.pdf

kas

We did a 57" custom hood over our cook zone (36" Gagganau induction + 12" Gaagenau Gas Wok). Went with a 1400 Abakka Hy-Ex Remote Ventilator with a Duct Silencer. Needs 10" duct. I can be cooking up a storm with the hood on high and carrying on a conversation at a normal voice.. just a faint hum in the background. And the best thing about a great hood vent, your hair and clothes don't pick up the food smell.