PSI-USB - Uncategorized Kopul - Free user manual and instructions

Product Type	Passive Direct Box (USB to Balanced Analog)
Brand	Kopul
Model	PSI-USB
Input Connector	USB Type B (Female)
Output Connectors	2x 3-Pin Balanced XLR
Power Source	USB Bus-Powered (4.5–5.5 V)
Frequency Response	20 Hz – 20 kHz
Dynamic Range	92 dB
Sample Rate	48 kHz
Bit Depth	16 bit
Maximum Output Level	+6 dB
Signal-to-Noise Ratio	-72 dB
Output Impedance	600 Ω
Stereo/Mono Switch	Yes
Enclosure Material	Metal
Dimensions (L × W × H)	3 × 2.5 × 1.5 in (7.6 × 6.3 × 3.8 cm)
Weight	0.4 lb (181 g)
Included Cable	USB-A to USB-B
Safety Precautions	Keep away from water, flammable gases/liquids; avoid prolonged high-volume listening
Cleaning Instructions	Clean with soft, dry cloth only
Warranty	One-Year Limited
Compatible Systems	Windows and Mac (plug and play)
Special Features	Transformer isolated, high-resolution DAC, stereo/mono selectable

Frequently Asked Questions - PSI-USB Kopul

How do I connect the PSI-USB to my computer?

Use the included USB-A to USB-B cable to connect the PSI-USB to a USB-A port on your computer. If your computer only has USB-C, use a USB-C to USB-A adapter. The power indicator LED will light up once connected.

How do I route my computer's audio to the PSI-USB?

On Windows: Open Settings > System > Sound, and under Output, select USB Audio Device. On Mac: Open System Preferences > Sound > Output, and select USB Audio Device.

What is the Stereo/Mono switch for?

In Mono mode, the device sums the stereo signal to mono and outputs it on both XLR channels. In Stereo mode, it outputs the left and right channels separately, ideal for stereo playback or recording two discrete channels.

Can I use the PSI-USB with a PA system?

Yes. Connect the XLR outputs of the PSI-USB to the inputs of your PA speakers or mixing console. Use balanced 3-pin XLR cables for best results.

Is the PSI-USB compatible with both Windows and Mac?

Yes, it is a plug-and-play device that works with both Windows and Mac computers without needing additional drivers.

What are the power requirements?

The PSI-USB is powered entirely through the USB connection, requiring 4.5 to 5.5 V. No external power supply is needed.

What is the warranty period?

Kopul offers a one-year limited warranty from the original purchase date, covering defects in materials and workmanship under normal use.

How do I clean the PSI-USB?

Use a soft, dry cloth to clean the exterior. Do not use water, solvents, or abrasive cleaners.

Why is there no sound from the XLR outputs?

Check that the USB cable is properly connected and the power indicator is lit. Ensure your computer's audio output is set to USB Audio Device. Also confirm that the XLR cables are connected to powered speakers or a mixing console that is turned on.

Can I use the PSI-USB for recording?

Yes, you can send prerecorded or sequenced tracks from your computer to a mixing board or recorder via the PSI-USB's XLR outputs. It converts the USB audio to a balanced analog signal suitable for professional recording setups.

USER MANUAL PSI-USB Kopul

Abstract red geometric shape with white and black edges (no text or symbols)

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

Right and Left 3-pin balanced XLR output

USB balanced input Power indicator LED Stereo/Mono switch

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.

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.

graph LR
    A["Laptop"] --> B["PSI-USB"]
    B --> C["Speaker 1"]
    B --> D["Speaker 2"]
    C --> E["Speaker 3"]
    D --> E

Using Computer Audio for Recording

Send prerecorded or sequenced tracks to a mixing board or recorder.

graph TD
    A["Laptop"] --> B["PSI-USB"]
    B --> C["Oscilloscope"]
    C --> D["Speaker 1"]
    C --> E["Speaker 2"]

Adding Computer Audio to a Video Presentation

Use the PSI-USB to add narration or dialog to your video presentation. Follow the diagram below.

graph TD
    A["Laptop"] --> B["PSI-USB Module"]
    C["Pod"] --> B
    B --> D["Speaker 1"]
    B --> E["Speaker 2"]
    D --> F["Speaker 3"]
    E --> F

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.

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