I hope I made good choices with new gear. Comments?

@sls883 The Cambridge Audio monoblocks arrived a couple days ago.  They're heavy! Parasound preamplifier came yesterday. Benchmark Media DAC should be here Tuesday.  Shanling CD transport by end of next week. 77 inch LG OLED TV has been here for a few weeks. Morrow Audio speaker cables on the 14th or 15th. Other assorted interconnects, cables etc. Some are here, rest by end of next week.  Downstairs room where everything is going should be all set early next week. I am learning to be patient! 

New speakers? Let's see how all this comes together.  Yes, that would be a major expense!

I think you'll be pleased. It seems like you've made good choices. 

With your new gear, you'll probably hear differences between cables where maybe you hadn't previously. 

@toddsyr , +1 on your DAC, now you’re cooking with gas. Random question. Does your new CD transport and your DAC both have USB? If so down the road try USB over coax ( not trying to fire people up ) in my stereo with my Innuos streamer and Schiit Yiggy DAC it was an improvement over coax ymmv. Also does your new Shanling include a streamer or is that a different model ? I think overall you’re pretty much off to the races. Happy Listening, Mike B. 

Let's start with power. Whole house surge protectors are cheap insurance not only fo your audio/video, but you refrigerator, stove, dishwasher, washer, dryer, water heater, and HVAC also. All of those have micro-electonics in them that do not respond well to surges. Brownouts and outages are different. They require backup power ($$$) and are best handled on a priority basis, e.g. refrigerator, yes, dishwasher, not so much. Internet equipment, absolutely. I run my router off a 600W UPS that keeps it up for about 12 Hours. I have a gas on-demand hot water heater, it draws 6W standby, 20W in use, so it will run for a week on  600W backup.

A Dedicated 20A circuit for your AV is also basic. And unless your UPS can handle 2KW for an hour wile providing true sinusoidal 60Hz power, I wouldn't bother. 

As for speakers, I've never been an L-100 fan. In 1980 JBL intro'd the L-110 which not only kicked the L-100s butt, but also the well-beloved ADS L810s. They went louder, deeper, cleaner, and imaged incredibly. But JBL fanboys didnt like them because they 'only' had a 10" woofer. Point being, there are better speakers for your needs. If you like JBLs punch, but want something more refined, .Monitor Audio Silver 300s are a screaming deal. Or step up to their Gold series for even nicer finish and a ribbon tweeter.

@sls883 Oh, I'm sure I'll be quite happy. This will be the best gear I've ever owned. Research says the synergy should not only be good but outstanding. The vintage equipment I run actually did provide very noticeable differences when I upgraded to Morrow Audio speaker cables and even just Audioquest Tower interconnects. The better grade cables and such I'm getting now should make me ecstatic. 

@buellrider97 The Shanling CT90 Premium CD Transport does have USB as does the Benchmark Media DAC3B. Probably give it a test eventually. 

The  Shanling CT90 does not come with streaming or Wi-Fi. Bluetooth it does. 

@panzrwagn Whole house surge protection. Just got a chance to look into that. MUCH cheaper than I would have guessed. Calling our electrician Monday about a Type 1 whole house  surge protector. Do we also need the Type 2, indoor unit? 

Battery backup. Firm believer in it. We have them all over the house. We don't need them to last very long though, the standby generator kicks on in like 7 seconds of an outage, That's 14,6 kw, enough for the whole house. 

Speakers. I really do appreciate your thoughts on the matter. I think I should wait until all this new stuff is setup for a bit before thinking about new speakers. Maybe then I'll know if or what I want different.