I also have the question, "Can I use the 901 driver in my 101 speaker case ?"
I have an old pair of 101's and one of them dropped breaking the driver.
The 901's appear to have the same dimensions and mount points.
There is clearly a parallel LRC bandpass filter built into the speaker unit. I suppose I'll need to replace both driver's of the pair so that the amplifier is
balanced.
Now I have another question, since the 901 drivers look pretty basic, do i really need to replace
with Bose driver, or can I buy another inexpensive one...? I don't have a lot of experience with speakers, so I don' t know if the mount holes for 4.5 " drivers are universal or proprietary or something in between.
Glad someone else has had this issue too.
cheers,
wbg