• Reviews around amp (5.00 of 5)

    Sennheiser HD 660 S - HiRes Audiophile Open Back Headphone

    • Just make sure you get a good amp and dac to pair it with.
    • even with my HD600s and a good DAC amp, Even with the 600s and a dual monoblock headphone amp setup!
    • Using them with a dedicated headphone amp (MHA 100) and Fiio portable amp, and love the sound.