Mackie HM-400 4-Channel Headphone Amplifier Drums 8-inch driver) features Hartke's patented

8-inch driver) features Hartke's patented HyDrive speaker technology

just connect to the AUX input using a mini stereo cable and you are ready to go

ANTI-FEEDBACK knob

PBS Electric Bass Package PB-100 Combo

Bass Boost Switch

Mackie HM-400 4-Channel Headphone Amplifier Drums 8-inch driver) features Hartke's patentedPerfect for studios, practice spaces, quiet stages, and more, the HM Series offers everything you need whether it is just splitting a single signal to your band, or more complex headphone distribution. FLEXIBLE HEADPHONE AMPLIFICATION The 19 rackmount HM 400 4 Channel Headphone Amplifier offers an incredible amount of versatility and excellent sound quality in a single rack space. Perfect for professional applications including studios, Houses of