Sennheiser HD 650, HD 600, and HD 580 Review - Time-tested Reference Standards

Previous HD 600 Review: • Sennheiser HD 600 Revi...
HD 600 EQ:
Preamp: -10.0 dB
20 Hz, +9.5 dB, Q 0.8
40 Hz, +1.5 dB, Q 0.8
3500 Hz, -3.0 dB, Q 2.0
10000 Hz, -3.0 dB, Q 3.0
14000 Hz, +0.5 dB, Q 2.0
HD 650 EQ:
Preamp: -7.5 dB
20 Hz, +6.5 dB Q 0.8
40 Hz, +1.5 dB Q 0.8
3500 Hz, -2.0 dB Q 2.0
10000 Hz, -3.0 dB Q 3.0
14000 Hz, +0.5 dB Q 2.0
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