specification
{"json":"[{\"index\":\"0\",\"tran_label\":\"Model\",\"tran_value\":[\"E48.4A\"]},{\"index\":\"1\",\"tran_label\":\"Input\",\"tran_value\":[\"4High Level/2 RCA/Optical/BT/USB\"]},{\"index\":\"2\",\"tran_label\":\"Output\",\"tran_value\":[\"4High/8RCA\"]},{\"index\":\"3\",\"tran_label\":\"Amplfiier type\",\"tran_value\":[\"CLASS AB\"]},{\"index\":\"4\",\"tran_label\":\"Power Output\",\"tran_value\":[\"4X35W @ 4 OHMS\",\"4x60W@ 2 OHMS\"]},{\"index\":\"5\",\"tran_label\":\"Sampling Rate\",\"tran_value\":[\"24Bit/192KHz ADC/DAC\"]},{\"index\":\"6\",\"tran_label\":\"EQ/Delay\",\"tran_value\":[\"31Band EQ/15ms\"]},{\"index\":\"7\",\"tran_label\":\"Frequency Range\",\"tran_value\":[\"20Hz- 20Khz\"]},{\"index\":\"8\",\"tran_label\":\"Phase\",\"tran_value\":[\"0-180\"]},{\"index\":\"9\",\"tran_value\":[\"＜1%\"],\"tran_label\":\"THD+N\"},{\"index\":\"10\",\"tran_value\":[\"5.1\"],\"tran_label\":\"BT version\"},{\"index\":\"11\",\"tran_value\":[\"Yes\"],\"tran_label\":\"\"},{\"index\":\"12\",\"tran_value\":[\"mp3\",\"wma\",\"wav\",\"m4a\",\"aac and lossless format FLAC\"]},{\"index\":\"13\",\"tran_value\":[\"Yes\"],\"tran_label\":\"PC Software& Mobile app\"}]","type":"2"}