TASCAM Celesonic US-20x20 Owners Manual - Page 16

Windows 8.1 1 Click the  button that appears at the bottom left of the Start screen to open the Apps screen. 2 Right-click "Computer" and select "Properties". 3 Click "Advanced system settings". 4 Click "Settings" in the "Performance" section of the "Advanced" tab of the "System Properties" window. 5 In the "Visual Effects" tab of the "Performance Options" window, select "Adjust for best performance". Windows 7 a) Turn Aero off. 1 Right-click the desktop and select "Personalize". 2 Select a "Basic" or "High Contrast" theme. b) Performance settings 1 Right-click "Computer" and select "Properties". 2 Click "Advanced system settings". 3 Click "Settings" in the "Performance" section of the "Advanced" tab of the "System Properties" window. 4 In the "Visual Effects" tab of the "Performance Options" window, select "Adjust for best performance". Mac OS X 1 Open "System Preferences..." from the Apple menu, and select "Energy Saver". 2 Set "Computer sleep" to "Never". 3 Set "Display sleep" to "Never". NOTE Depending on the Mac OS X version and Mac computer model, this setting might not be available. 4. Change the USB port Since the unit might not properly function with some USB ports, try connecting to a different USB port. NOTE • Try again after disconnecting other USB devices. (Keyboards and mice can be left connected.) • Do not use a USB hub. Always connect the unit directly to a USB port on the computer (built-in) Specifications Ratings 88 Sampling frequencies 44.1, 48, 88.2, 96, 176.4, 192 kHz 88 Quantization bit depth 16/24-bit Analog inputs 88 Mic inputs (balanced, IN1-IN2) Connector: XLR-3-31 equivalent (1: GND, 2: HOT, 3: COLD) Input impedance: 2.4 kΩ Nominal input level (gain knob at MAX): −68 dBu (0.0003 Vrms) Nominal input level (gain knob at MIN): −12 dBu (0.195 Vrms) Maximum input level: +8 dBu (1.947 Vrms) 16 TASCAM US-20x20 Gain range: 56 dB 88 Instrument inputs (unbalanced, IN1-IN2) Connectors: 6.3mm (1/4") standard TS jacks (Tip: HOT, Sleeve: GND) Input impedance: 1 MΩ or more Nominal input level (gain knob at MAX): −68 dBV (0.0004 Vrms) Nominal input level (gain knob at MIN): −12 dBV (0.251 Vrms) Maximum input level: +8 dBV (2.512 Vrms) Gain range: 56 dB 88 Line inputs (balanced, IN1-IN8) Connectors: 6.3mm (1/4") standard TRS jacks (Tip: HOT, Ring: COLD, Sleeve: GND) Input impedance: 10 kΩ Nominal input level (gain knob at MAX): −52 dBu (0.0019 Vrms) Nominal input level (gain knob at MIN): +4 dBu (1.228 Vrms) Maximum input level: +24 dBu (12.282 Vrms) Gain range: 56 dB 88 Line inputs (unbalanced, LINE IN 9-10) When LEVEL switch set to −10dBV Connectors: 6.3mm (1/4") standard TS jacks (Tip: HOT, Sleeve: GND) Input impedance: 10 kΩ Nominal input level: −10 dBV (0.3162 Vrms) Maximum input level: +10 dBV (3.162 Vrms) 88 Line inputs (balanced, LINE IN 9-10) When LEVEL switch set to +4dBu Connectors: 6.3mm (1/4") standard TRS jacks (Tip: HOT, Ring: COLD, Sleeve: GND) Input impedance: 10 kΩ Nominal input level: +4 dBu (1.228 Vrms) Maximum input level: +24 dBu (12.282 Vrms) Analog outputs 88 Line outputs (balanced, LINE OUT 1-10) Connectors: 6.3mm (1/4") standard TRS jacks (Tip: HOT, Ring: COLD, Sleeve: GND) Output impedance: 100 Ω Nominal output level: +4 dBu (1.228 Vrms) Maximum output level: +24 dBu (12.277 Vrms) 88 Headphone outputs (PHONES 1/2) Connectors: 6.3mm (1/4") standard stereo jacks Maximum output: 70mW + 70mW (THD+N 0.1% or less, into 32 Ω load) Frequency response (input w PHONES 1/2 output) At 44.1 kHz and 48 kHz 20 Hz - 20 kHz: ±1.0 dB (JEITA) At 176.4 kHz and 192 kHz 20 Hz - 80 kHz: ± 5.0 dB (JEITA) Digital audio input/output ratings 88 COAXIAL IN Connectors: RCA pin jacks