CAD Audio U2 User manual

U2 USB Stereo Headphones
with Microphone
Before using the U2 in your favorite audio or communications
application you must confirm that the computer’s operating
system recognizes the U2.
Windows XP recognition instructions
1. Plug the U2 into the USB port on the computer.
(When using a USB hub, check with the hub manufacturer to
be sure the hub supports a device such as a microphone. Plug
the microphone directly into the computer’s powered USB
port for optimal performance.)
2. Allow 30 to 60 seconds for the system software to recognize
the U2. (A series of bubbles will appear by the Windows
toolbar to notify you of a new device.)
3. In the Start Menu, select Control Panel.
4. Select “Sounds, Speech, and Audio Devices”.
5. Select “Sounds and Audio Devices”.
6. Select the “Audio” tab. Confirm that under the “Sound
playback” and “Sound recording” sections the “C-Media USB
Headphone Set” is selected.
7. Select the “Volume” tab under the Sound recording heading
and select “Advanced Controls” in the Options menu of this
window.
8. Click the “Advanced” button to open the “Advanced Controls
for Wave In” window. Depending upon your system, you
might have the option of selecting “1 AGC” or “Mic boost”.
Checking this option will significantly increase the sensitivity
of the microphone. Use this for recording softer sounds. If you
experience distortion when recording louder sounds, try
unchecking this option.
C-Media USB Headphone Set
C-Media USB Headphone Set

9. Launch your audio recording or communications software.
10. Position the microphone arm approximately 1 inch from your
mouth for optimal audio quality.
11. Locate the Preferences in the program and select the
“C-Media USB Headphone Set”. Adjust the input and output
level in this program so that the audio signal is strong but
not distorted.
12. Enjoy your CAD U2 USB Stereo Headphones with Microphone.
Mac OSX recognition instructions
1. Plug the U2 into the USB port on the computer.
(When using a USB hub, check with the hub manufacturer to
be sure the hub supports a device such as a microphone. Plug
the U2 directly into the computer’s powered USB port for
optimal performance.)
2. Allow 30 to 60 seconds for the system software to recognize
the U2.
3. Go to the Apple Menu and locate “System Preferences”.
4. Under “Hardware” click on the “Sound” icon.
5. Click on the “Input” button and choose the “C-Media USB
Headphone Set”.
©2007 CAD Professional Microphones Part No. 64514-23-00 Oct2007
6. Position the microphone arm 1 inch away from your mouth.
7. Test the U2 by speaking into the microphone.
8. You will see activity in the “Input Level” meter.
9. As you are speaking adjust the “Input Volume” slider. Take
care not to allow the signal to go beyond the meter, if the
meter is fully illuminated the sound can become distorted.
The meter should be illuminated 3/4ths of the way to obtain
the best sound quality.
10. Close the System Preferences window to complete the
settings.
11. Launch your audio recording or communications software.
12. Locate the preferences in your audio program and select the
C-Media USB Headphone Set. Adjust the input and output
level in this program so that the audio signal is strong but
not distorted.
13. Enjoy your CAD U2 USB Stereo Headphones with Microphone.
CAD Professional Microphones
6573 Cochran Rd., Bldg. I Solon, OH 44139
800-762-9266 www.cadmics.com
NOTE: This equipment has been tested and found to comply with the
limits for a Class A digital device, pursuant to Part 15 of the FCC Rules.
These limits are designed to provide reasonable protection against
harmful interference when the equipment is operated in a commercial
environment. This equipment generates, uses, and can radiate radio
frequency energy and, if not installed and used in accordance with the
instruction manual, may cause harmful interference to radio commu-
nications. Operation of this equipment in a residential area is likely to
cause harmful interference in which case the user will be required to
correct the interference at his own expense.
Two-Year Limited Warranty
CAD Professional Microphones hereby warrants that this product will be free of defects in material and workman-
ship for a period of two years from the date of purchase. In the unlikely event that a defect occurs CAD will, at its
option, either repair or replace with a new unit of equal or greater value. Retain proof of purchase to validate the
purchase date and return it with any warranty claim.
Return warranty claims carefully packed, insured and prepaid to the Service Department at the address listed
below.
This warranty excludes exterior finish or appearance, damage from abuse, misuse of the product, use contrary
to CAD’s instructions or unauthorized repair. All implied warranties, merchantability, or fitness for a particular
purpose is hereby disclaimed and CAD hereby disclaims liability for incidental, special or consequential damages
resulting from the use or unavailability of this product.
This warranty gives you specific legal rights and you may have other rights that vary from state to state. Some
states do not allow the exclusion or limitation of incidental or consequential damages or limitations on how long
an implied warranty lasts, so the above exclusions and limitations may not apply to you.
Note: No other warranty, written or oral is authorized by CAD Professional Microphones.
Shipping Instructions
Please call our customer service department at 440-349-4900 for a pre-approved return authorization number.
Carefully repack the unit and return it to: CAD Professional Microphones, 6573 Cochran Road, Building I, Solon,
Ohio 44139.
RETURNS WITHOUT A PRE-APPROVED RETURN AUTHORIZATION NUMBER WILL BE REFUSED.
If outside the United States, contact your local dealer or distributor for warranty details.
C-Media USB Headphone Set