Jul 20, 2008 at 1:20 PM Thread Starter Post #1 of 2 Gao New Head-Fier Joined Jul 18, 2008 Posts 12 Likes 0 What are the differences between the Ultrasone PRO 550 and 650? They look pretty much the same...
Jul 20, 2008 at 2:07 PM Post #2 of 2 ultrapaul Member of the Trade: Ultrasone Joined Feb 19, 2008 Posts 121 Likes 10 PRO 550 Freq. Resp.: 10Hz - 22kHz, 64 Ohm; DB: 102 dB; Driver: 1.97" Mylar; ULE: 98% PRO 650 Freq. Resp.: 10Hz - 25kHz, 75 Ohm; DB: 95 dB; Driver: 1.58" Mylar, Gold Plated; ULE: 98% The 550 has an all-plastic outer ear cup, the 650 has a diamond-cut aluminum plate on the outer ear-cup. Both come with a hard carrying case, extra ear pads and 2 cables (1 straight, 1 curled). Hope this helps.
PRO 550 Freq. Resp.: 10Hz - 22kHz, 64 Ohm; DB: 102 dB; Driver: 1.97" Mylar; ULE: 98% PRO 650 Freq. Resp.: 10Hz - 25kHz, 75 Ohm; DB: 95 dB; Driver: 1.58" Mylar, Gold Plated; ULE: 98% The 550 has an all-plastic outer ear cup, the 650 has a diamond-cut aluminum plate on the outer ear-cup. Both come with a hard carrying case, extra ear pads and 2 cables (1 straight, 1 curled). Hope this helps.