I really like Chris Church and his products. I think the CA-11 is the best value in our hobby (Busman mics are a close second). I don't think the CA-11 is nearly as good as the ES943 in several catergories, including personal preference.. A very well respected Japanesse manufactures "contractor exclusive" line of microphones, gold sputtered, sits a bit higher on the ladder than Church's modified Chinese capsules (no offense intended). Not only are there additional capsules for the 943, but you can also use the 853 line with an adapter. This includeds subcard(discontinued) and shotgun. Additionally there are also a variety of microhpones, including the ES973R full bodied mic than can be used as an open taping rig. Boundary, podium and phantom adapters and power supplies are available as well... I think Church's 9100 preamp is the best PIP preamp currently being made by anyone. My $0.02
Church CA-11 AT ES943
Frequency Response 20 hz TO 20 khz 30-20,000 Hz
Maximum Input Sound Level N/A 110dB/125dB/145dB (depends on powering)
Dynamic Range N/A 83dB/98dB/118dB (depends on powering)
Modular Capsules Card/Omni 943omni/853omni/U853omni/853sub/943Card/853Card/U853Card/943hyper/853hyper/U853hyper/943micropline/853uniline
Signal To Noise Ratio N/A 65dB
Open Circuit Sensitivity N/A -40dB
Mounting Accessories Alegator Clip Hanging, Poduim Mount, Lav Clips, SP t-bar mounts, more....
self noise 27 dbA N/A
Matched Stereo Pair within 0.4dB AT claims manuf tolerances are extreamly low
Frequency Responce and Polar Chart NA Availalbe online
Price; $119 $259(sound pros)