Instruction: Extract information from the supporting document to answer the given question.

Input:
Question: Can I mount the rear speakers in the ceiling?
Document: These speakers are just lovely. Nice feel and look to them. They sound wonderful-clear & crisp. My room is midsize 14x26 with 14 ft ceiling. Set up was easy. I just sat them on their bases didn't mount them on walls. I am using a sony dn100 receiver. You do need a better wire (16 gauge)for long runs. Sub wolfer is sleek looking and doesn't vibrate. The hookup for wires is really nice- wire goes though hole in post.
Sound is amazing. I have these speakers mounted about 8 feet high on the wall and they still sound great. They come with all the mounts and wire. The only thing that would make them better is if they came with the screws to mount them on the wall.
The speaker wire is black #18 gauge with polarity coding. The only negative thing about this system, which really isn't that big of a deal, is that it doesn't include wood screws needed to mount the speaker brackets. I highly recommend this system for a bedroom or a small to medium sized living/family room. For a large room, I would go with bigger speakers.
I purchased the JBL CS6100BG Home Theater Speaker System for my bedroom. Overall, I've been really impressed with the quality of sound. The subwoofer packs a powerful punch. Installing the wall brackets for the rear channel speakers was really simple. It took me about 15 minutes. This system comes with fixed and adjustable brackets for the rear channel speakers. I used the adjustable brackets. It also comes with a wall bracket for the center channel speaker.
These speakers sound great, and whats better is that they come with two types of mounting brackets. (Flush mount and pivoting style) I do recommend that for the center speaker you use one of the satellite speaker mounts, I noticed in my case that the terminals were contacting the plate before I turned on my receiver. Other than that they sound great. The sub is quite powerful if you want bass, I prefer it to be tuned down to match the auto correction on my receiver.
An ideal home theatre set has 5 identical speakers (2 front, 2 rear, center) and a compatible sub. This JBL delivers with amazing sound and, for the price is as good a bargain as you will find. As a 2.1 stereo set up, I'm also very pleased though ideally, this is for home viewing. Great product
This surround system was worth $$$ with high quality built and great sounds. Recommended with small or mid size entertainment room. A nice thing that included the mount bracket speakers. Also, it's fast shipping. A+++
I would highly recommend these speakers to anyone trying to upgrade their home theater.
I'm very happy,  installed those speakers with a Harman Kardon amplifier, the sound is incredible. Simply more than I expected.
I recommend these for anyone that is looking for a good set of quality sounding speakers, rather it be for movies or music.
Answer: As long as the appropriate anchors are used, then yes.  Use the hardware that comes with it to anchor to ceiling and then mount to speaker.  They will just hang from the ceiling then.  Good luck!