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Reviews around amp (5.00 of 5)
Sennheiser HD 660 S - HiRes Audiophile Open Back Headphone
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Just make sure you get a good amp and dac to pair it with.
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even with my HD600s and a good DAC amp, Even with the 600s and a dual monoblock headphone amp setup!
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Using them with a dedicated headphone amp (MHA 100) and Fiio portable amp, and love the sound.
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