HeadphoneGits
Stax SR-X
Vintage Stats / Stax / Stax SR-X
SR-X mk1
Release date: 1970
Price at launch: 18,000 yen
Diaphragm thickness: 3.8 microns
Sensitivity: 95dB/100Vr.ms
Weight: 370g (excluding cord)
Diaphragm thickness: 3.8um
Discontinued: around 1972
- SR-X mk1 page on fc2
- SR-X mk1 catalog (from fc2)
- SR-X mk1 manual (from fc2)
Flat plate custom rig measurements using an Umik-1 microphone. Red = SR-X mk1, gray = SR-X mk3. Both with original pads with no pleather left (cloth surface).
SR-X mk2
Release date: 1972
Price at launch: 22,000 yen
Diaphragm thickness: 3.8 microns
Sensitivity: 95dB/100Vr.ms
Weight: 370g (excluding cord)
Diaphragm thickness: 2um
Discontinued: around 1975
- SR-X mk2 page on fc2
- SR-X mk2 manual (from fc2)
According to the fc2 page, the driver dust protectors which were introduced after the SR-1 were removed in the mk2 (the rear one) and replaced with the black filter seen in the following picture, and then reinstated in the mk3. This might be why my mk2 have busted drivers with the coating mostly gone (very low output volume).
Driver rear showing the black filter material, and driver front (in an SR-5 frame).
