[tussinette]

Sony MDR-MA900, 70mm too.
 
Sony likes it BIIIIIG. 

 

[rebelinho]

How can nobody have mentioned the ENORMOUS drivers of the OPPO PM-1??? OPPO says they are 85 x 69 mm in size!
 

 

[JayTar]

-skull candy crusher have 40mm and 55mm drivers (not sure if one is passive though)
-bluedio turbines have 57 mm drivers (on a side note has anyone tried or know anyone who has tried the bluedio ufos?[$170 and theu apparently have a 50mm and 3 20mm drivers in each side])

 

[BNBatman]

My old Hyper X's had 73 mm drivers.

 

[hoteltech]

In addition to what others said:
 
Philips SHP9500: 50mm
V-Moda M100: 50mm
Sony MDRXB800: 50mm
Panasonic HTF600-S: 50mm
Blue Lola: 50mm
Audio-Technica W1000x: 53mm

 

[speedwheels]

My old Hyper X's had 73 mm drivers.

Would you by any chance happen to remember the exact model of the HyperX headphones you are referring to? the current HyperX line seems to use 40mm or 50mm drivers..

 

[Music Alchemist]

I don't know of any planar magnetic and electrostatic headphones that don't have drivers much larger than 50 mm.

 

[Arturw8]

Let's continue
Sony MDR CD3000 70mm
Sony MDR Z7 70mm
Sony MDR Z7M2 70mm
Sony MDR Z1R 70mm

Buying Sony MDR MA900 sent Audeze LCD2 Closed Back to classifieds

 

[rhalf]

Do any of these big dynamic drivers have particularly nice bass? I know they can dig deep, but do they resolve?

 

[dunring]

The Hyper Cloud Orbit regular and S model have the Audeze Mobius 100mm planar magnetic drivers and on ebay I've gotten several pairs for $100 from liquidators. They sound good in default eq stereo mode but it's not some huge difference. Bigger isn't better, but that's a cheap way to find out.

 

[rhalf]

Bigger isn't better, but that's a cheap way to find out.

I actually know acoustics well enough to know what constitutes good sound. However I'm interested in a headphone that will have to only reproduce bass. That's what it will literally be used for - listening only to low frequencies. It needs to do it well though. I wonder how the big round boys compare to 'ribbon' counterparts. I've had some 50mm headphones but they weren't anything special. Sony XB series, Superlux...

 

[GREQ]

My old Hyper X's had 73 mm drivers.

Wrong.
There isn't enough space inside a HyperX for this size driver.
It can house a 53mm at most, which is likely what you meant to write.

Sony MDR CD3000 70mm

Wrong.
It has a 50mm driver.