The Box II - Uncategorized API Audio - Free user manual and instructions
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| Product Type | Audio Interface / Preamplifier |
| Model | The Box II |
| Brand | API Audio |
| Form Factor | 1U Rackmount |
| Dimensions (W x D x H) | 19 x 8.5 x 1.75 inches (approx. 48.3 x 21.6 x 4.4 cm) |
| Weight | Approx. 10 lbs (4.5 kg) |
| Power Supply | Internal AC power, 100-240 VAC, 50-60 Hz |
| Phantom Power | +48V per channel (switchable) |
| Input Channels | 2 (combo XLR/TRS) |
| Output Channels | 2 (balanced XLR) |
| Maximum Input Level | +24 dBu |
| Frequency Response | 20 Hz - 20 kHz (±0.5 dB) |
| THD+N | <0.005% |
| Signal-to-Noise Ratio | >110 dB |
| Sample Rate Support | Up to 192 kHz |
| Bit Depth | 24-bit |
| Analog to Digital Conversion | High-performance 24-bit/192kHz |
| Construction Material | Steel chassis with aluminum front panel |
| Cleaning | Wipe with dry cloth; avoid solvents |
| Safety | Use only with grounded outlets; do not expose to moisture |
| Warranty | 1 year limited |
| Country of Origin | USA |
Frequently Asked Questions - The Box II API Audio
What is the <b>The Box II</b> used for?
The Box II is a high-quality audio interface/preamplifier designed for professional recording, live sound, and broadcast applications.
Does it require drivers?
No, The Box II is class-compliant and works plug-and-play with most operating systems (Windows, macOS, Linux).
How do I connect it to my computer?
Use a standard USB cable (Type B to Type A) to connect to your computer. The device will appear as an audio device.
Can I use it with an iPad?
Yes, via the USB connection with an appropriate adapter (Camera Connection Kit). It is class-compliant.
What is phantom power and how do I enable it?
Phantom power (+48V) is required for condenser microphones. It is enabled via the front panel switch for each channel.
Is there any special maintenance required?
Periodically check connections and keep the unit dust-free. Use a soft dry cloth for cleaning. No internal maintenance needed.
What are the input/output impedance?
Input impedance: 10 kOhms (balanced). Output impedance: 100 Ohms (balanced).
Can it be used as a standalone preamp?
Yes, The Box II can operate as a standalone microphone preamplifier with line-level outputs, without USB connection.
How to reset the unit?
Power cycle the unit by unplugging for 10 seconds. There is no factory reset button.
Does it come with cables?
No, The Box II does not include cables. You need to purchase USB and XLR cables separately.
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