"Normal" adult reading speed is on the order of 250 words per minute.
Each page in our anthology of theory excerpts has approximately 50 lines of 15 words for a total of 750 words. Assuming the capacity to read 150 words per minute based on these being challenging texts yields about 5 minutes per page or about 10-12 pages per hour (with 3 minutes per page and 20 pages per hour being about the top we can expect).
Standard assumption is that for each hour in class one is expected to do about three hours of work outside of class. For a 75 minute class this corresponds 3.75 hours or to about 37-45 pages. On a weekly basis that's 70-90 pages of reading. Over 14 weeks that's 1000-1250 pages.
This, of course, does not include note taking, essay writing, and the like. When we factor that in we end up with about half as much reading.
In this class we are expected to do written exercises in reaction to readings, prepare presentations, and later in the semester to work on installments of a final essay project. If we assume one hour of writing in the early weeks and three in the later weeks we get at the low end: