13
S•phone Connections
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.
Headphone Impedance and Sensitivity Ratings
SAMSON HEADPHONES
Model Impedance Sensitivity
PH60
RH100
RH300
RH600
CH70
CH700
OTHER MANUFACTURER'S HEADPHONES
Manufacturer Model Impedance Sensitivity
AKG K-141 600 ohm 98 dB
AKG K-240 600 ohm 88 dB
Beyer DT-150 250 ohm 114 dB
Beyer DT-801 250 ohm 114 dB
Fostex T-10 50 ohm 91 dB
Fostex T-20 50 ohm 96 dB
Fostex T-40 50 ohm 98 dB
Sennheiser HD-450 (original) 70 ohm 94 dB
Sennheiser HD-450 Series II 60 ohm 94 dB
Sony MDR-7502 45 ohm 100 dB
Sony MDR-7504 45 ohm 103 dB
Sony MDR-7506 63 ohm 106 dB
