Using USB interface (CR-525UKD only)

The CR-525UKD can play back MP3 and WMA files that have been stored on USB mass storage devices, e.g., USB flash drives and MP3 players.

Supported Audio File Formats

For USB mass storage device playback, the CD receiver supports the following music file formats.

■MP3

•MP3 files must be MPEG-1 Audio Layer 3 format with a sampling rate of 32 kHz, 44.1 kHz, and 48 kHz and a bit-rate of between 32 kbps and 320 kbps. Incompatible files cannot be played.

•Variable bit-rate (VBR) MP3 files are supported. (Playing times may not display correctly.)

•MP3 files must have a “.mp3” or “.MP3” filename extension.

■WMA

WMA stands for Windows Media Audio and is an audio compression technology developed by Microsoft Corpo- ration. The CD receiver supports WMA format that con- form to the WMA ver.9 standard.

•WMA files must have the copyright option turned off.

•Sampling rates of 32 kHz, 44.1 kHz, and 48 kHz and bitrates of between 48 kbps and 320 kbps, are sup- ported. Incompatible files cannot be played.

•Variable bit-rates (VBR) are supported. (Playing times may display incorrectly with VBR.)

•WMA files must have a “.wma” or “.WMA” filename extension.

•Protected WMA music files on an MP3 player cannot be played.

USB Mass Storage Device Requirements

•The CD receiver supports USB mass storage devices that support the USB Mass Storage Class*.

•Playback may not be possible with some USB devices even if they conform to the USB Mass Storage Class*.

•USB mass storage devices formatted with the FAT16 or FAT32 file system are supported.

•If the USB mass storage device has been partitioned, only music files in the first partition can be played.

•Each folder may contain up to 500 music files, and folders may be nested up to eight levels deep.

•USB hubs and USB mass storage devices with hub functions are not supported.

•Onkyo accepts no responsibility whatsoever for the loss or damage to data stored on a USB mass storage device when that device is used with the CD receiver. We recommend that you back up your important music files beforehand.

•The CD receiver supports USB MP3 players that sup- port the USB Mass Storage Class standard*. Note that not all USB MP3 players support the USB Mass Stor- age Class standard*. Refer your USB MP3 player’s instruction manual for details.

•MP3 players containing music files that are managed with special music software, and iPods containing music files managed with iTunes are not supported. To listen to iPod music on a CD receiver, connect an optional Onkyo RI Dock to the CD receiver

(see page 23).

•Recording is not possible from the CD receiver to a

USB mass storage device.

*USB Mass Storage Class standard allows USB mass storage devices to be connected to computers without the need for spe- cial drivers or software.

USB Mass Storage Device Folders and Files

On the USB mass storage device, MP3 or WMA files may be organized in a hierarchically, with folders con- taining files and subfolders, as shown below.

On the CR-525UKD, all folders appear at the same level regardless of the hierarchy.

Root

 

Folder #1

 

File #1

 

 

 

 

 

 

 

File #10

Folder #2 Folder #3 Folder #4

 

File #11

 

File #14

 

 

File #12

File #13 File #18

If you don’t select a specific music file or folder for play- back, all of the music files on the USB mass storage device will be played in numerical order starting with file #1.

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Onkyo CR-425UKD Using USB interface CR-525UKD only, Supported Audio File Formats, USB Mass Storage Device Requirements
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CR-425UKD, CR-325UKD, CR-525UKD specifications

The Onkyo CR-525UKD, CR-325UKD, and CR-425UKD are a series of compact, feature-rich audio systems designed to deliver high-quality sound in a user-friendly format. These systems cater to audiophiles and casual listeners alike, providing a blend of modern technology and classic charm.

The CR-525UKD is the flagship model in the series, offering a robust 40 watts per channel amplification. It features a sleek design with a clear display, making it easy to navigate through media options. One of its standout features is the inclusion of a built-in DAB/DAB+ tuner, allowing users to access an array of digital radio stations with superior sound quality. The CR-525UKD is also equipped with Bluetooth technology, enabling wireless streaming from smartphones and tablets. The system supports multiple audio formats, including MP3, FLAC, and WAV, ensuring versatility for different listening preferences.

In contrast, the CR-325UKD is designed for listeners who want excellent performance in a more compact and budget-friendly package. It delivers 30 watts per channel and comes with a DAB tuner. The simplified controls make it particularly user-friendly, appealing to those who might not be tech-savvy. Despite its lower power, the sound quality remains impressive, capturing detailed audio for a more immersive experience. The CR-325UKD also offers a USB port for playback from external storage devices, adding to its convenience.

The CR-425UKD sits comfortably in between the two, offering 35 watts per channel. This model boasts a slightly more comprehensive feature set than the CR-325UKD, incorporating both DAB and FM tuners, along with Bluetooth capabilities. The CR-425UKD also provides a user-friendly interface and a variety of connectivity options, including an Aux input and headphone jack, making it an excellent choice for versatile audio setups.

All three models share essential characteristics such as an elegant design, user-friendly interfaces, and high-quality audio performance. They cater to various needs, from casual listening to more dedicated setups. With their solid construction and impressive sound quality, the Onkyo CR-525UKD, CR-325UKD, and CR-425UKD represent excellent choices for those seeking an enriched audio experience in a compact format. These systems embody Onkyo's commitment to delivering outstanding performance and innovative features in home audio.
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