They seem to be telling us that the e8 is using a new driver again after the after the pro 900 was released and and the spec of the pro 900 and e8 are totally different. This might actually be a completely new driver.
Or maybe they are lying and reusing the edition 9 driver
actually I don't mind if they are using the same driver if they manage to make it sound better than the e9.
Pro 900
Technical specificaions
Dynamic principle, closed
Frequency range 6-42000Hz
Impedance 40 Ohms
Sound pressure level 96 dB
MU Metal bufferboard, reduced
New 40 mm titanium-plated drivers
Weight 295g (without cord)
Edition 8
Release date beginning of April, 2009
price150000 yen
●Dynamic principle, closed
●Drivrer:40mm Titanium plated
●Frequency range:8~35,000Hz
●Impedance:30 Ohms
●Sound pressure level:94dB
●Weight:260g
●Cord:Straight1.2m/4.0m(extension cord included) φ3.5mm gold plated mini jack(standard jack adaptator included)
Edition 9
Frequency range : 8 Hz-35000 Hz
Impedance : 30 Ohms
Sound pressure level : 96 dB
headband pressure : 5.2 N
Weight : 310 g (without cable)
Carrying case : size W230 D230 H60mm
made in Germany
Suggested retail price : 241500 yen