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impedance v. frequency for T-1 gen 2 Beyer phones ?

audiopile

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I've tried various search terms - nuthin' ? I'd like to see a plot of the impedance of a Beyerdynamic T-1 gen 2 phone. Or is this information so useless no one's bothered with it ( I DO have a talent for seeking answers to meaningless questions.)
 

flipflop

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f535e76822f681c33cc17961cf04937a.png

https://www.0db.co.kr/index.php?mid=REVIEW_0DB&category=182&document_srl=575546
 
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A

audiopile

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Thank You - this is exactly what I've been looking for :) .
 

solderdude

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I have another plot for you so you don't have to 'convert' impedance to actual change of FR.

fr-t1mk2-r-120.png


Measured FR from 0.2 Ohm amplifier and from 120 Ohm out amplifier.
The change is about +0.5dB in the bass to lower mids area.
The 7kHz peak I measured is clearly a resonance which is shown in the impedance plot as well.

The 7kHz resonance is short lived and not affected by a higher output resistance.

csd-t1mk2-r-120.png
 
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