Headphone Impedance And Sensitivity Ratings - Samson S-phone Owner's Manual

Headphone Impedance and Sensitivity Ratings

Virtually all headphones that terminate in a stereo 1/4" plug can be used with the S•phone Headphone Amplifier.
This chart provides a partial listing of some of the more popular models, along with their impedance and sensitivi-
ty ratings. As described on page 9 of this manual, headphones with lower impedances (or higher sensitivity) will
sound louder as compared to other, higher impedance (or lower sensitivity) headphones at the same channel
Volume setting. Samson Technologies has no connection with any of these manufacturers, nor do we endorse
any particular models for use with the S•phone. This is simply a reference listing for your convenience. For more
information about any of these headphones, contact the manufacturer directly.
SAMSON HEADPHONES
Model Impedance
PH60
RH100
RH300
RH600
CH70
CH700
OTHER MANUFACTURER'S HEADPHONES
Manufacturer Model
AKG K-141
AKG K-240
Beyer DT-150
Beyer DT-801
Fostex T-10
Fostex T-20
Fostex T-40
Sennheiser HD-450 (original) 70 ohm
Sennheiser HD-450 Series II
Sony MDR-7502
Sony MDR-7504
Sony MDR-7506
S•phone Connections
Sensitivity
Impedance Sensitivity
600 ohm 98 dB
600 ohm 88 dB
250 ohm 114 dB
250 ohm 114 dB
50 ohm 91 dB
50 ohm 96 dB
50 ohm 98 dB
94 dB
60 ohm 94 dB
45 ohm 100 dB
45 ohm 103 dB
63 ohm 106 dB
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