specification
{"json":"[{\"index\":\"0\",\"tran_label\":\"Model\",\"tran_value\":[\"E48.4D\"]},{\"index\":\"2\",\"tran_label\":\"Input\",\"tran_value\":[\"4High Level/2 RCA/Optical/Coaxial/USB Audio/USB Disk/BT\"]},{\"index\":\"3\",\"tran_label\":\"Output\",\"tran_value\":[\"4 High/8RCA\"]},{\"index\":\"5\",\"tran_label\":\"Amplfiier type\",\"tran_value\":[\"CLASS D\"]},{\"index\":\"6\",\"tran_label\":\"Power Output\",\"tran_value\":[\"4x50W @ 4 OHMS\"]},{\"index\":\"7\",\"tran_label\":\"(AD & DA) Signal Convertion\",\"tran_value\":[\"CIRRUS LOGIC SMART HIFI 3-core DSP\"]},{\"index\":\"8\",\"tran_label\":\"Sampling Rate\",\"tran_value\":[\"24Bit/192KHz ADC/DAC\"]},{\"index\":\"9\",\"tran_label\":\"EQ/Delay\",\"tran_value\":[\"31Band EQ/15ms\"]},{\"index\":\"10\",\"tran_label\":\"Frequency Range\",\"tran_value\":[\"20-20kHz\"]},{\"index\":\"11\",\"tran_label\":\"Filtering\",\"tran_value\":[\"Butter\",\"Bessel\",\"Link\"]},{\"index\":\"12\",\"tran_label\":\"Phase\",\"tran_value\":[\"0-180\"]},{\"index\":\"13\",\"tran_label\":\"Preset\",\"tran_value\":[\"10\"]},{\"index\":\"14\",\"tran_label\":\"THD +N\",\"tran_value\":[\"＜1%\"]},{\"index\":\"15\",\"tran_label\":\"Operating Voltage\",\"tran_value\":[\"9-16V\"]},{\"index\":\"16\",\"tran_label\":\"Bluetooth Version\",\"tran_value\":[\"5.1\"]},{\"index\":\"17\",\"tran_label\":\"USB Built in\",\"tran_value\":[\"YES\"]},{\"index\":\"18\",\"tran_label\":\"USB DISK\",\"tran_value\":[\"mp3\",\"wma\",\"wav\",\"m4a\",\"aac and lossless format FLAC\"]},{\"index\":\"19\",\"tran_label\":\"PC Software& mobile app\",\"tran_value\":[\"Yes\"]}]","type":"2"}