Reference Chart A:
Headphone Impedance and
Sensitivity Ratings
Virtually all headphones that terminate in a stereo 1/4” plug can be used
with the Q5 Headphone Amplifier. This chart provides a partial listing of
some of the more popular models, along with their impedance and sensi-
tivity ratings. As described on page 6 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 Output setting.
Samson Technologies has no connection with any of these manufactur-
ers, nor do we endorse any particular models for use with the Q5; this is
simply a reference listing for your convenience. For more information
about any of these headphones, contact the manufacturer directly.
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
11
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