pietcux
Headphoneus Supremus
I owned the MA 900. It has no crossfeed built in, here are the specs from the user manual:Speaking of crossfeed... Sony's MDR-MA900 had that built into the headphone. It's a successor of the legendary MDR-F1 open-back series, so it has ultra-wide soundstage and good resolution. Very comfy. But poor choice of leather and headband quality due to price point and eventually ceased production. A hidden gem in Sony's vast headphone offerings.
Features
Newly-developed 70 mm driver units for high-resolution and wide dynamic range sound
Comfortable full open headphones with wide stereo soundstage
Acoustic Bass Lens delivers rich bass sound for music, movie, gaming, etc., by concentrating bass sound at the centre of the driver units
360 kJ/m3 neodymium magnets for clear mid-range and rich bass sound
Flexible-fit head cushion for wearing comfort
Light-weight design for long-term wearing comfort
Impedance compensators (resistor network inside driver units) eliminate variances in sound quality between amplifiers of different output impedance
Comfortable fitting with fabric earpads
Single-sided cord
Maybe you refer to the very unusual Impedance Compensators, don't you?
It is a good open can, but it cannot compete to the Z7 and even less to the Z1r. The headband construction, even though made from sturdy Magnesium remains a miracle to me that can slipped on my head with every move. But yes there is a 70mm driver... but made from Mylar only.
And Lachlan liked it a lot...