Kopul PSI-USB USB to Audio Direct Box User Manual

Kopul PSI-USB – USB to Audio Direct Box

Product Information

The Kopul PSI-USB is a passive direct box that converts your computer’s digital audio to a balanced analog signal that can be sent to a PA system or a broadcast or mixing console. It is powered by your computer’s USB port and has transformer isolated balanced stereo XLR outputs, and high resolution digital to analog converters that deliver superior sound quality that’s free of noise, RF and EM interference, and ground hum. The device is simple to connect to your system and gives you the option of outputting a stereo or two-channel mono signal.

Product Usage

Precautions

Before making any audio connections, make sure your computer audio is not playing and the audio system’s volume is turned down.

Making Audio Connections

Use the included USB-A to USB-B cable to connect the PSI-USB to a computer. If your computer has only a USB-C port available, use a USB-C to USB-A adapter to make the connection.

Use balanced 3-pin XLR cables to output the analog audio signal from the PSI- USB to a PA system, mixing console, or recorder.

Computer Audio Settings

To route your computer’s audio to the PSI-USB, follow these steps:

• Windows Computers:

1. Open Windows Settings.
2. Select System from the menu.
3. Select Sound from the menu bar.
4. Under the Output menu, click on the drop-down menu, and select USB Audio Device.
5. Close the Settings window.

• Mac Computers:

1. Open the System Preferences.
2. Select the Sound preferences.
3. Click on Output, and select USB Audio Device in the list.
4. Close the System Preferences window.

The Stereo/Mono Switch

Select Mono to sum the computer’s stereo signal to mono. The PSI-USB outputs two mono channels. This is useful if you’re using only one PA speaker, simultaneously sending the signal to two separate audio systems, or using two PA speakers placed far apart.

Select Stereo to output the computer audio on two channels. This is ideal for outputting a stereo mix or two discrete channels to two channels of a recorder or mixing board.

Connecting Computer Audio to a PA System

Use the PSI-USB to send your computer’s audio to a PA system. Connect the PSI- USB to the computer and use balanced 3-pin XLR cables to output the analog audio signal from the PSI-USB to a PA system.

Using Computer Audio for Recording

Send prerecorded or sequenced tracks to a mixing board or recorder. Connect the PSI-USB to the computer and use balanced 3-pin XLR cables to output the analog audio signal from the PSI-USB to a mixing board or recorder.

Adding Computer Audio to a Video Presentation

Use the PSI-USB to add narration or dialog to your video presentation. Connect the PSI-USB to the computer and use balanced 3-pin XLR cables to output the analog audio signal from the PSI-USB to a mixing board or recorder.

Specifications

• USB 2.0
• Frequency Range: 20 Hz to 20 kHz
• Dynamic Range
• Sample Rate
• Bit Depth
• Input Connectors
• Output Connectors: Right and Left 3-pin balanced XLR output
• Output Impedance
• Maximum Output: +6 dB
• Signal to Noise Ratio: -72 dB (-3 dBr) @ 1 kHz
• Attenuation Switch: No
• Stereo/Mono Switch: Yes
• Power Requirements: 4.5 to 5.5 V
• Enclosure: Metal
• Weight: 0.4 lb. (181 g)

Thank you for choosing Kopul.
The Kopul PSI-USB is a passive direct box that’s powered by your computer’s USB port. It converts your computer’s digital audio to a balanced analog signal that can be sent to a PA system or a broadcast or mixing console. This plug and play device is simple to connect to your system, and gives you the option of outputting a stereo or two-channel mono signal. Transformer isolated balanced stereo XLR outputs, and high-resolution digital to analog converters deliver superior sound quality that’s free of noise, RF and EM interference, and ground hum.

Precautions

• Please read and follow these instructions, and keep this manual in a safe place.
• Exposure to high sound levels can cause permanent hearing loss. Avoid listening at high volumes for extended periods of time.
• Keep this product away from water and any flammable gases or liquids.
• Clean this product with only a soft, dry cloth.
• All images are for illustrative purposes only.

Overview

Also Included
USB-A to USB-B cable

Making Audio Connections

Computer Audio – USB
Before making any audio connections, make sure your computer audio is not playing, and the audio system’s volume is turned down. Use the included cable to connect the PCI-USB to a computer. If your computer has only a USB-C port available, use a USB-C to USB-A adapter to make the connection. The power indicator will illuminate when the connection is made, and the PCI-USB will be ready to use.

Analog Audio – XLR
Use balanced 3-pin XLR cables to output the analog audio signal from the PCI- USB to a PA system, mixing console, or recorder.

Making Audio Connections

Computer Audio – USB
Before making any audio connections, make sure your computer audio is not playing, and the audio system’s volume is turned down.
Use the included cable to connect the PCI-USB to a computer.
If your computer has only a USB-C port available, use a USB-C to USB-A adapter to make the connection.
The power indicator will illuminate when the connection is made, and the PCI- USB will be ready to use.

Analog Audio – XLR
Use balanced 3-pin XLR cables to output the analog audio signal from the PCI- USB to a PA system, mixing console, or recorder.

Computer Audio Settings

To rout your computer’s audio to the PSI-USB, follow these steps.

Windows Computers

1. Open Windows Settings.
2.  Select System from the menu.
3.  Select Sound from the menu bar.
4. Under the Output menu, click on the drop-down menu, and select USB Audio Device.
5. Close the Settings window.

Mac Computers

1. Open the System Preferences
2. Select the Sound preferences.
3. Click on Output, and select USB Audio Device in the list.
4.  Close the System Preferences window.

The Stereo/Mono Switch

Mono
Select Mono to sum the computer’s stereo signal to mono. The PSI-USB outputs two mono channels. This is useful if you’re using only one PA speaker, simultaneously sending the signal to two separate audio systems, or using two PA speakers placed far apart.
Stereo
Select Stereo to output the computer audio on two channels. This is ideal for outputting a stereo mix, or two discrete channels, to two channels of a recorder or mixing board.

Connecting Computer Audio to a PA System
Use the PSI-USB to send your computer’s audio to a PA system. Follow the diagram below.

Using Computer Audio for Recording
Send prerecorded or sequenced tracks to a mixing board or recorder.

Adding Computer Audio to a Video Presentation
Use the PSI-USB to add narration or dialog to your video presentation. Follow the diagram below.

Specifications

• USB : 2.0
• Frequency Range :20 Hz to 20 kHz
• Dynamic Range  :92 dB
• Sample Rate :48 kHz
• Bit Depth :16 bit
• Input Connectors : USB Type B female
• Output Connectors : 3-pin XLR (×2)
• Output Impedance : 600 Ω
• Maximum Output +6 : dB
• Signal to Noise Ratio : -72 dB (-3 dBr) @ 1 kHz
• Attenuation : Switch No
• Stereo/Mono : Switch Yes
• Power Requirements : 4.5 to 5.5 V
• Dimensions : (L × W × H) 3 × 2.5 × 1.5 in. (7.6 × 6.3 × 3.8 cm)
• Enclosure :Metal
• Weight:  0.4 lb. (181 g)

One-Year Limited Warranty

This KOPUL product is warranted to the original purchaser to be free from defects in materials and workmanship under normal consumer use for a period of one (1) year from the original purchase date or thirty (30) days after replacement, whichever occurs later. The warranty provider’s responsibility with respect to this limited warranty shall be limited solely to repair or replacement, at the provider’s discretion, of any product that fails during normal use of this product in its intended manner and in its intended environment. Inoperability of the product or part(s) shall be determined by the warranty provider. If the product has been discontinued, the warranty provider reserves the right to replace it with a model of equivalent quality and function. This warranty does not cover damage or defect caused by misuse, neglect, accident, alteration, abuse, improper installation or maintenance. EXCEPT AS PROVIDED HEREIN, THE WARRANTY PROVIDER MAKES NEITHER ANY EXPRESS WARRANTIES NOR ANY IMPLIED WARRANTIES, INCLUDING BUT NOT LIMITED TO ANY IMPLIED WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. This warranty provides you with specific legal rights, and you may also have additional rights that vary from state to state.
To obtain warranty coverage, contact the Kopul Customer Service Department to obtain a return merchandise authorization (“RMA”) number, and return the defective product to Kopul along with the RMA number and proof of purchase. Shipment of the defective product is at the purchaser’s own risk and expense. For more information or to arrange service, visit www.kopulcables.com or call Customer Service at 212-594-2353. Product warranty provided by the Gradus Group. www.gradusgroup.com
KOPUL is a registered trademark of the Gradus Group. © 2022 Gradus Group LLC. All Rights Reserved.

References

• Gradus | Gradus Group
• Kopul | Technology for Broadcast & Studio Applications

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