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          ],
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          ],
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          ],
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          ],
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          ],
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          ],
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        },
        {
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              "url": "/python/html5/menu_attr_pair/1000/825000/menu_attr_pair_Generickeyword_aux_1_95dd6e5d00.html"
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              "url": "/python/html5/menu_attr_pair/1000/605000/menu_attr_pair_Generickeyword_cable_1_c70c70c70b.html"
            },
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            },
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            },
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            },
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              "url": "/python/html5/menu_attr_pair/1000/544000/menu_attr_pair_Generickeyword_inch_1_a7cc20cdd3.html"
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            },
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            },
            {
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              "url": "/python/html5/menu_attr_pair/1000/2000000/2631000/menu_attr_pair_Generickeyword_multi_1_305c22a7ff.html"
            },
            {
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              "url": "/python/html5/menu_attr_pair/1000/604000/menu_attr_pair_Generickeyword_plug_1_92f0dd0e9f.html"
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            {
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            },
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            },
            {
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              "url": "/python/html5/menu_attr_pair/1000/1000000/1967000/menu_attr_pair_Generickeyword_stereo_1_34712d6960.html"
            },
            {
              "value": "studio",
              "url": "/python/html5/menu_attr_pair/1000/12000000/12595000/menu_attr_pair_Generickeyword_studio_1_dae0fd6e9d.html"
            },
            {
              "value": "usb",
              "url": "/python/html5/menu_attr_pair/1000/605000/menu_attr_pair_Generickeyword_usb_1_8a77834028.html"
            },
            {
              "value": "volume",
              "url": "/python/html5/menu_attr_pair/1000/23000000/23203000/menu_attr_pair_Generickeyword_volume_1_af3087efe6.html"
            }
          ],
          "name_url": "/python/html5/menu_attr_pair/1000/1000000/1491000/menu_attr_pair_Generickeyword_adapter_1_dc40e1394e.html"
        },
        {
          "name": "Height",
          "values": [
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              "value": "1.8",
              "url": "/python/html5/menu_attr_pair/1000/209000/menu_attr_pair_Height_18_1_4cf3fcbefe.html"
            },
            {
              "value": "1.80",
              "url": "/python/html5/menu_attr_pair/1000/346000/menu_attr_pair_Height_180_1_05da35b48f.html"
            },
            {
              "value": "1000",
              "url": "/python/html5/menu_attr_pair/1000/60000/menu_attr_pair_Height_1000_1_df0c91e8b6.html"
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            "description": "<b>Overview</b><br /><br /> The Mackie HM-400 is a rack-mountable, 4-channel headphone amplifier designed to provide versatile headphone amplification for artists, musicians, and engineers monitoring through headphones in live stage applications and home, project, commercial, and mobile-recording studios. It features a stereo main output via XLR and 1/4\" jacks and twelve 1/4\" TRS stereo headphone outputs—three per channel—fed by a customizable blend of inputs. One stereo main input via XLR and 1/4\" jacks can be mixed with a per-channel 1/4\" stereo aux input. Each channel offers 2-band EQ for quick tone shaping, stereo balance or main/aux input mix control, and output level adjustments. Also on each channel are switches for muting left and/or right signals and operating in stereo or mono. 7-segment LED meters display main input and per-channel output levels. With Hosa HPE-310 cable features rugged molded plugs and a durable outer jacket for long-term use.<br><br> <b>In the box</b><br/><br/> <b>Mackie HM-400 Rack-Mountable, 4-Channel Headphone Amplifier</b><br/> Power Cable<br/> Limited 1-Year Warranty<br/><br/> <b>Hosa Technology Stereo 1/4\" Female Phone to 1/4\" Male Phone TRS Headphone Extension Cable - 10'</b><br/> Connector 1: 1 x 1/4\" TRS Male Straight<br/> Connector 2:1 x 1/4\" TRS Female Straight<br/><br/>",
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              "XLR & 1/4\" Stereo Inputs and Outputs",
              "Three Headphone Outputs per Channel",
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            "asin": "B07CCN2G4V",
            "title": "Mackie HM-400 Rack-Mountable 4-Channel Headphone Amplifier with 1 Year EverythingMusic Extended Warranty Free",
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