Alpine HDS-990 HDS-990 Owners Manual - Page 27

sound of other speakers. Example 2: All seats Adjust the time correction level of each speaker to be almost the same. 1 Sit in the listening position (driving position, etc.) and measure the distance (meters) between the head and each speaker. 2 Calculate the difference between the distance correction values of the farthest speaker and other speakers. L= (distance from the farthest speaker)(distance from other speakers) These values are the time correction values of different speakers. By setting these values, each sound can reach the listening position at the same time as the sound of other speakers. Time correction value list 0 ms） 0.00 距离 （cm） 0.00 距离 （inch ） 0.00 32 1 0.01 0.34 0.10 33 2 0.02 0.69 0.24 34 3 0.03 1.03 0.37 32 4 0.04 1.38 0.51 33 5 0.05 1.72 0.64 34 6 0.06 2.07 0.78 35 7 0.07 2.42 0.92 36 8 0.08 2.76 1.05 37 9 0.09 3.11 1.19 38 10 0.10 3.45 1.32 39 11 0.11 3.80 1.46 40 12 0.12 4.15 1.60 41 13 0.13 4.49 1.73 42 14 0.14 4.84 1.87 43 15 0.15 5.18 2.00 44 16 0.16 5.53 2.14 45 17 0.17 5.88 2.28 46 18 0.18 6.22 2.41 47 19 0.19 6.57 2.55 48 20 0.20 6.91 2.68 49 21 0.21 7.26 2.82 50 22 0.22 7.61 2.96 51 23 0.23 7.95 3.09 52 24 0.24 8.30 3.23 53 25 0.25 8.64 3.36 54 26 0.26 8.99 3.50 55 27 0.27 9.34 3.64 56 ms） 0.32 0.33 0.34 0.32 0.33 0.34 0.35 0.36 0.37 0.38 0.39 0.40 0.41 0.42 0.43 0.44 0.45 0.46 0.47 0.48 0.49 0.50 0.51 0.52 0.53 0.54 0.55 0.56 距离 （cm） 11.07 11.41 11.76 11.07 11.41 11.76 12.10 12.45 12.80 13.14 13.49 13.83 14.18 14.53 14.87 15.22 15.56 15.91 16.26 16.60 16.95 17.29 17.64 17.99 18.33 18.68 19.02 19.37 距离 （inch ） 4.32 4.45 4.59 4.32 4.45 4.59 4.72 4.86 5.00 5.13 5.27 5.40 5.54 5.68 5.81 5.95 6.08 6.22 6.36 6.49 6.63 6.76 6.90 7.04 7.17 7.31 7.44 7.58 24 EN 28 0.28 9.68 3.77 57 0.57 19.72 7.72 29 0.29 10.03 3.91 58 0.58 20.06 7.85 30 0.30 10.37 4.04 59 0.59 20.41 7.99 31 0.31 10.72 4.18 60 0.60 20.75 8.12 USB memory (optional)  When the machine is connected to three USBs at the same time, the system will automatically combine the contents of the three USBs to play in the same USB audio source.  Do not connect two or more charging devices to the USB port of this unit at the same time, otherwise normal operation cannot be guaranteed.  If you connect a USB storage to this unit, you can play MP3/WMA/AAC/M4A/WAV/FL AC/APE/DSD files. About USB Playback Format Support playback format: MP3/WMA/AAC/ M4A/WAV/FLAC/APE/DSD. Maximum number of playable files/folders: 10,000 files/700 folders. Supported memory: FAT16/32, NTFS, exFAT. Bluetooth operation About Bluetooth Bluetooth is a wireless technology that enables short-distance communication between mobile devices or personal computers. This enables data transfer between Bluetooth compatible