Disc Playback
USB/SD-Card Support
iPod/Aux Connection
Radio Functions
Bluetooth/Remote Control
Audio Section
Display Features

Disc Playback

CD Compatibility: The Dual XDMA6540 head unit supports CD-Audio, CD-Text, CD-R, & CD-RW disc playback.

MP3/WMA Compatible: The head unit supports playback of MP3/WMA music files recorded onto CD-R and CD-RW discs.

File/Folder Search: This search function allows navigation through compressed music files' folders to find a specific file or for playback.

Playback Features: The XDMA6540 offers playback features such as Repeat, Random & Intro scan.

• Repeat: You can repeat a single track, a specific folder, or an entire disc.
• Random: You can shuffle the playback order of all your songs or only the songs in a specific folder.
• Intro Scan: You can scan the first 10 seconds of each track or the first 10 seconds of each track in a folder.

Off Insert/Eject: A CD disc can be inserted or ejected with the power off. When a disc is inserted with the power off, the unit will automatically power up & begin playback.

Auto Reload: When a CD is ejected and left sticking out of the CD slot for approximately 15 seconds, the unit automatically reloads the CD to protect it from damage.

USB/SD-Card Support

USB Port: The Dual XDMA6540 is equipped with a front-panel USB (type-A) port for playback of MP3/WMA files stored on a USB mass storage device.  The unit's USB port will also charge your USB device during connection.

SD-Card Slot: The Dual XDMA6540 is equipped with hidden SD-card slot (behind detachable face-plate) for playback of MP3/WMA files stored on a SD/SDHC memory card (up to 16GB). The XDMA6540 offers the following playback features for MP3/WMA SD-card files - File/Folder Search, Fast Forward/Reverse, Repeat/Random, & Intro Scan.

Playback Controls: The XDMA6540 offers the following playback features for MP3/WMA files stored on your USB (MSC) device or SD memory card.

• File/Folder Search: This search function allows navigation through compressed music files' folders to find a specific file or for playback.
• Repeat: You can repeat a single track or specific folder.
• Random: You can shuffle the playback order of all your songs or only the songs in a specific folder.
• Intro Scan: You can scan the first 10 seconds of each track or the first 10 seconds of each track in a folder.

MP3/WMA Compatibility Chart: The MP3/WMA files stored on your USB mass storage device and SD/SDHC memory must meet the following requirements for proper playback on the XDMA6540.

iPod/Aux Connection

iPod/iPhone Direct: The Dual XDMA6540 features a direct USB control system for your iPod or iPhone. To play music from your iPod/iPhone device, connect the USB/Dock cable (included with your iPod/iPhone) to the XDMA6540's front-panel USB port. Playback will begin automatically. You can control your iPod/iPhone from the head unit, or your iPod/iPhone's clickwheel or touchscreen. You can search your iPod/iPhone's music from the XDMA6540 by Playlist, Artist, Album, Song, Genre, Audiobook, or Podcast. The head unit also supports Fast Forward/Reverse, Repeat/Random, & Intro playback functions for your iPod/iPhone. The Dual XDMA6540 will display song, artist, & album information; as well as charge your connected iPod/iPhone.

iPod/iPhone Compatibility Chart: The Dual XDMA6540 is "Made for iPod/iPhone" compatible and supports the following iPod/iPhone model features (as of 1/11/2012):

iPod/iPhone Cradle: The Dual XDMA6540 includes an iPod/iPhone cradle which provides a place to secure your iPod or iPhone next to the Dual head unit. The cradle will attach to the XDMA6540 when ISO-mounting or DIN-mounting the head unit in your dash.

Dual Auxiliary Inputs: The Dual XDMA6540 is equipped with a front-panel 3.5mm auxiliary input & a rear-panel stereo RCA auxiliary input.

• Stereo Minijack (3.5mm) Input: The XDMA6540 features a front-panel 3.5mm auxiliary input for temporary connecting an external portable audio device, such as a portable MP3 player.
• Stereo RCA Input: The XDMA6540 is fitted with a rear-panel stereo RCA auxiliary input for permanent connection of an external audio source.

Radio Functions

AM/FM Tuner: The Dual XDMA6540 features a built-in AM/FM tuner with manual, seek, scan, & preset tuning.

Preset Tuning: The built-in AM/FM tuner allows you to store up to 18 FM station presets and 12 AM station presets. You can tune your presets manually or have the head unit do it automatically.

Scan Tuning: Press the Scan button on the included remote control to preview strong stations on the current band, pausing for five seconds at each. Press Scan again to select station or cancel the function.

Local: The Local function allows only strong radio stations to be received, blocking stations with weaker signals.

European Tuning: You can switch the tuner between USA or European tuning.

HD Radio Ready (with iTunes Tagging): HD Radio operation requires connection of the Dual HDM90 HD Radio tuner (070HDM90, sold separately). With HD Radio you will be able to receive digital AM/FM broadcasts from local stations where available. This new technology will significantly improve audio quality and reception, as well as include information such as artist name and song titles or traffic news, viewable on the receiver's display. The Dual HDM90 HD Radio tuner is also capable of iTunes tagging. iTunes tagging gives you the ability to tag a song (up to 64) and stores it to a connected iPod. The next time your iPod is connected to iTunes, the tagged songs are displayed with the option to purchase them from the iTunes Store.

SiriusXM Ready: The Dual XDMA6540 comes ready for SiriusXM programming with access to XM & Sirius Satellite Radio stations. Thanks to its proprietary SiriusXM Connect port, you can add the optional SXV200V1 SiriusXM Connect tuner and receive more than 150 channels of exclusive programming directly from SiriusXM, via the "SiriusXM All Access" package (subscription required). Visit SiriusXM.com for a complete list of subscription options & channel guide. Additional features of the SXV200 SiriusXM Connect tuner include:

• Channel list displays a list of all available channels
• Category Search searches for channels in a certain category
• Direct Channel input allows you to directly enter a station number using the remote control
• Information such as Channel Name, Artist Name, and Song Title can be viewed on the head unit's display
• Up to 18 SiriusXM Satellite Radio station presets
• iTunes Tagging for your connected iPod or iPhone

Bluetooth/Remote Control

Built-in Bluetooth: Bluetooth hands-free communication is built into the Dual XDMA6540, making it easy to integrate a Bluetooth enabled cellular phone (up to 10). Bluetooth is a two-way wireless communication system allowing you to make & receive cell phone calls, or stream digital audio from your Bluetooth enabled phone on the XDMA6540 CD receiver.

• Hands-free Communications (HFP): The built-in Bluetooth hands-free feature allows you to talk on your cell phone through the XDMA6540 without the need of holding it in your hand, which helps avoid any traffic violations by keeping your focused on the road. Incoming calls will be automatically appear on the display and a ring tone will heard through your car speakers. You can answer a call from the head unit or have the head unit automatically answer any incoming calls. You can dial a number from the head unit or the included remote control. In addition, you can view a list of the 10 most recent phone calls dialed, received, or missed. The XDMA6540 even supports call waiting. An external microphone is included for better audio performance (no integrated front-panel mic).
• Audio Streaming (A2DP/AVRCP): The built-in Bluetooth audio streaming feature allows you to stream digital audio from your Bluetooth enabled mobile phone to the XDMA6540 & control the playback of the audio through the head unit.

Wireless Remote Control: The XDMA6540 comes supplied with a 21-button IR wireless remote control which provides complete control of the Dual CD Receiver.

Steering Wheel Remote Compatibility: The head unit features an OEM steering wheel remote control input on the rear of the unit to allow you to keep your vehicle's radio steering wheel remote controls when used with the optional PAC SWI-RC Steering Wheel Control Interface Adapter (541SWIRC, sold separately); or the optional Metra ASWC Steering Wheel Control Interface Adapter (120ASWC, sold separately).

Audio Section

MOSFET Amplifier: The Dual XDMA6540 is equipped with a MOSFET amplifier. Compared to conventional power supplies, the MOSFET amplification circuit is smaller and more efficient, and it delivers increased power with less distortion and absolutely zero on/off switching noise. More power means louder and cleaner music at higher volumes because you're not pushing the limits of the amplification circuit.

CEA2006 Compliant: The power specifications for the XDMA6540 are compliant with the CEA2006 Mobile Amplifier Power Testing and Measurement standards from the Consumer Electronics Association (CEA). These standards were developed as a way to equitably compare power specs from model to model and between manufacturers. The power output specs for the XDMA6540 are as follows:

• CEA2006 Specs: 18 watts RMS x 4 channels (at 4 ohms, 20Hz-20kHz, 1% THD-N)
• Maximum Power Output: 60 watts x 4 channels (240 watts total)

Preset EQ Curves: The Dual CD Receiver features the following preset EQ curves (Flat, Pop, Jazz, Classic, Beat, Rock, & User) to customize your music listening.

Bass &Treble: The Bass & Treble can be independently adjusted from -6 to +6. Bass & Treble settings are retained for each mode individually. Any adjustments to the Bass or Treble settings automatically cancel the current EQ curve.

Loudness: The Loudness function enhances the bass & treble frequencies at low volumes. The Loudness can be set to 1, 2, 3, or Off.

2V/6Ch Preamp Outputs: The Dual XDMA6540 is equipped with three pair of 2-Volt preamp outputs (Front/Rear/Subwoofer). The front & rear speakers are fading, while the subwoofer output is non-fading. The subwoofer preamp output's level can be adjusted independently from 0-12. Adjusting the subwoofer level to 0 turns the subwoofer output off.

Source Volume Level: The Source Volume Level control allows a gain adjustment for each audio source (Tuner, CD, Aux and USB). You can set the source volume level (+/-6dB) for each mode, depending on the relative volume of each audio source.

Program Volume: You can se the XDMA6540 to power-on to the same volume level (1-46) every time.

Key Beep: When this function is enabled, every button press will output a beep tone.

Display Features

Detachable Face: The Dual CD Receiver features a detachable faceplate and comes supplied with a hard-plastic carrying case to store the receiver's face when detached. The head unit includes two face-fixing screws for use if you prefer that the unit's faceplate always stays attached.

Variable Illumination: The XDMA6540 features variable color illumination for its LCD screen and buttons. You can adjust the button & LCD illumination between 31 preset colors, or customize your own color by adjusting Red, Green, & Blue levels (0-16). You can even have it scroll through all preset and customized colors. In addition, you can set a different color more for day & night driving.

Display Settings: The head unit offers the following display settings.

• Scrolling: You can change the scrolling style used for displayed information on the LCD screen. Choose from Off (no scrolling), Once (scrolls once), 15 Secs (scrolls once per 15 seconds), & On (constantly scrolls).
• LCD Type: You can set the LCD illumination type to Positive (color background with black text), Negative (Black background with color text), or Automatic (switches to positive during daytime and negative during the night).
• Display Dimmer: The head unit's display features three illumination dimmer settings (High/Medium/Low).

12/24 Hour Clock: The unit's built-in clock will display 12-hour AM/PM time in USA frequency spacing mode. In European frequency spacing mode, the clock will display 24-hour time.

Power-On Message: This feature allows a "Good Morning/Afternoon/Evening" text message to be shown on the unit's LCD screen when it is powered on.

Demo Mode: You can enable or disable the unit's demonstration mode.