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iFixit Teardown Reveals iPad Pro's Four-Speaker Design Fills Space That Could Have Held 50% More Battery
Each corner of the iPad Pro has a speaker driver sitting next to a capped resonance chamber. Each speaker is designed identically, as the iPad Pro shifts the speaker's function depending on the orientation of the device. The two speakers on top provide higher frequencies while the bottom speakers provide lower frequencies.
Once it removed the speaker drivers, iFixit uncapped the volume chambers, which Apple says gives the iPad Pro's speakers 61 percent more "back volume" than previous iPads. Underneath the carbon fiber caps are enclosures filled with foam, which are used to amplify the speaker's sound. However, iFixit notes that the speakers take up a significant amount space that could have been used to increase battery capacity by 50 percent. Previous iPads, due to the lack of premium speakers, were able to dedicate a greater proportion of space to battery capacity.
One of the first changes the team at iFixit noticed was that the logic board has moved to the center of the device, unlike previous iPads where it was off to the side. Additionally, the logic board's shielding had to be removed before iFixit was able to remove the logic board itself, unlike previous iPads.
The teardown also found that the iPad Pro uses the DP695 Timing Controller, which may be an iteration of the DP665 LCD timing controller found in the 5K Retina iMac. However, as noted by iFixit, the iPad Pro's timing controller is likely modified to better use the display's refresh rate. Also, the teardown experts found that Apple has added adhesive pull tabs under the iPad's batteries, making them easier to remove.
Finally, iFixit's teardown offers physical confirmation that the iPad Pro includes 4 GB of RAM, which was confirmed by Apple's own Xcode tools in mid-September.
iFixit's teardown is ongoing, and this post will be updated if any other significant discoveries are made.
Update: iFixit has discovered that the iPad Pro has a 10307 mAh battery.
Update 2: iFixit has given the iPad Pro a repairability score of 3 out of 10, noting that the Smart Connector is unlikely to fail given its lack of moving parts and despite it being "virtually impossible to replace." The main issue is that the iPad Pro uses a lot of adhesive to hold everything together, making things difficult to replace.