[Sardonyx]

Has anyone heard both versions? They have each been reviewed separately, but if there is a side-by-side I've missed it.
 
Studio Pro

[size=9pt]Type[/size]​	[size=9pt]Open-air Dynamic[/size]​
[size=xx-small][size=9pt]Driver Unit[/size][/size]​	[size=xx-small][size=9pt]13.5 mm bore[/size][/size]​
[size=9pt]Frequency Response Range[/size]​	[size=9pt]20Hz 20kHz[/size]​
[size=xx-small][size=9pt]Output Sound Pressure Level （Sensitivity）[/size][/size]​	[size=xx-small][size=9pt]110dB ±3dB[/size][/size]​
[size=9pt]Impedance[/size]​	[size=9pt]32Ω ±15%[/size]​
[size=9pt]Cord[/size]​	[size=9pt]Y type 980mm  φ1.8[/size]​
Input Plug​	[size=9pt]24K gold-plated stereo mini-plug[/size]​
[size=9pt]Net Weight[/size]​	[size=9pt]12ｇ±0.5g[/size]​

 
 
Studio

[size=9pt]Type[/size]​	open-air dynamic​
[size=xx-small][size=9pt]driver unit[/size][/size]​	[size=xx-small][size=9pt]φ13.4mm[/size][/size]​
[size=9pt]frequency[/size]​	[size=9pt]20Hz 20kHz[/size]​
[size=9pt]response range[/size]​
[size=xx-small][size=9pt]output sound[/size][/size]​	[size=xx-small][size=9pt]113dB ±3dB[/size][/size] [size=xx-small][size=9pt](178mV/10000Hz)[/size][/size]​
[size=xx-small][size=9pt]pressure level[/size][/size]​
[size=9pt]impedance[/size]​	[size=9pt]32Ω ±15%[/size]​
[size=9pt]cord[/size]​	[size=9pt]Y type 0.7mm[/size]​
input plug​	[size=9pt]24k gold-plated stereo mini-plug[/size]​
[size=9pt]net weight[/size]​	[size=9pt]11.5ｇ±0.5g[/size]​

 
 
From the 9Wave website, it looks like the same driver in different bodies, and a thicker cord on the Pro.  But no way to tell if the cord has larger conductors or just thicker insulation.