Tube amp kit ideas for Ultrasone Pro 500 cans - diyAudio
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Old 20th February 2016, 03:21 PM   #1
diyAudio Member
Join Date: Feb 2016
Default Tube amp kit ideas for Ultrasone Pro 500 cans

I don't recall if the cans are hi impedance or not.
Thanks in advance for the input.
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Old 20th February 2016, 03:56 PM   #2
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Join Date: May 2010
Location: Skokie Il
Impedance is 64 ohm. That took 0.56 seconds to source on google.

Look up the Borbely headphone amps. There are cathode follower and hybrid circuits. These designs employ modern topology.
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