Product Description

Advanced Sound Retriever restores the rich, full, dynamic sound to compressed music. 3 Hi-Volt RCA preouts (Front, Rear, Sub).

Product Details

• Amazon Sales Rank: #517 in Car Audio or Theater
• Brand: Pioneer
• Model: DEHP4000UB
• Dimensions: 7.00" h x 6.38" w x 2.00" l, 2.90 pounds

Features

• AM/FM radio, CD, CD-R/RW, MP3/WMA/AAC, USB, iPod receiver
• 4 x 50 Watts maximum power with 6-channel preamp output
• OEL 16-character display
• Includes front panel auxiliary input, USB/iPod input; add Pioneer adapters for SAT Radio, HD radio, Bluetooth, CD/DVD changer
• 1-year limited warranty

Amazon.com Product Description
Pioneer's DEH-P4000UB CD receiver allows you to connect and control a variety of media devices, including your iPod, through its built-in USB input. The vibrant display renders 16 characters for artist and title information, while the user-friendly control knob makes it easy to access menus and scroll through your files. The receiver plays MP3, WMA, and AAC files that you've burned to a disc, and includes a front auxiliary input for easy connection of optional audio sources. The amplifier packs plenty of power with 50W through 4 channels, and built in high- and low-pass filters to optimize speaker performance. Add to that a wealth of expansion options, and you have a highly competitive receiver for the price

Detachable Faceplate
The DEH-P4000UB features a detachable faceplate with an OEL 16-character display.

CD/MP3/WMA/AAC Playback
In addition to CDs, enjoy playback of MP3, WMA, and AAC audio files burned to CD or on a USB device, with ID3 tag support--title, artist and album info will be scrolled across the display.

AM/FM Radio
Always have your favorite stations at hand with six user presets per band.

Best Stations Memory
Setting your radio presets can be a real pain while you're driving--especially if you're in an unfamiliar area. So, let the tuner do the work for you by activating the Best Stations Memory (BSM) function. The tuner will seek out the six strongest stations in the area and set them into the tuner presets.

Advanced Sound Retriever
Hear the detail, warmth and clarity, the way the artist intended it, from all of your highly compressed MP3, WMA and AAC files stored on USB memory device, iPod and portable digital players. By restoring data (especially higher frequencies) that tend to get lost in the digital compression process, Pioneer's Advanced Sound Retriever technology enhances audio reproduction nearly all the way up to 20 kHz frequencies.

When Advanced Sound Retriever is "ON," the high frequency range is compensated to match the frequency response curve of the original sound.

USB Direct Control for iPod and more
Pioneer's DEH-P4000UB is ready to roll with capability for direct connection to your iPod. USB 2.0's speed and capability allow an elevated iPod experience in the car, and nearly limitless expandability for portable media players and USB memory devices

File search and access are extra-quick. The headunit keeps song, artist, time and album information displays very clear and user-friendly, and control is intuitive through the 7-Way Rotary Commander. The system's wired USB connection provides direct digital signal transfer from the iPod for clean, clear sound. In addition, Pioneer has developed the following new features to make using your iPod in the car extremely easy and convenient:

• Link Search--While listening to a specific artist you can hold "List" button down and it will pop up folders containing that specific artist.
• Passenger Control Mode--Allows passenger to use the iPod directly to browse and select music, while connected to the headunit for playback.
• Random (Shuffle) Key--Physical Random Button on faceplate (Shuffle) makes it easy to hear something fresh.

AUX-In Connection
Use the built-in AUX input for connecting any portable digital player or other external auxiliary devices. For extra-convenient access, the DEH-P4000UB has this input on the front panel.

Dial in Your Sound
Use and customize the 3-band parametric equalizer, or change loudness settings to get the perfect sound. The DEH-P4000UB also features built in high- and low-pass filters to optimize speaker performance.

Wireless Remote
A wireless remote is included for use while watching the road.

Available Bluetooth Wireless Technology
Use the available CD-BTB200 Bluetooth Adapter and Bluetooth-enabled cellular phones for easy, safe, and hands-free operation, including talking via the headunit's microphone and your vehicle's speaker system. The system automatically mutes any other audio during incoming or outgoing calls.

Full-Featured High Performance
The DEH-P4000UB is smartly designed to expand your system, customize your experience, and provide superior sound quality and easy operation.

• Three RCA Hi-Volt preouts for adding on external amps and speakers simplify system expansion.
• Two-Way Crossover with separate High and Low Pass settings.
• Built-in MOSFET 50 W x 4 amplifier for excellent sound quality, minimal distortion and efficient power handling.
• Supertuner IIID advanced analog and digital processing assure superior imaging, less distortion and noise, and stronger, smoother broadcast signal reception.

What's in the Box
Pioneer DEH-P4000UB, remote control, trim ring, wiring harness, installation hardware, operation manual, installation guide, warranty sheet

Customer Reviews

Fantastic value
This is my review i did for Crutchfield since i purchased it there, but i also do so much shopping here, it made sense to share my review on this product:

Fantastic value
Written By patrick, Upstate NY on Saturday, March 29, 2008

I purchased this unit a few weeks ago after some extensive research to
find something under $200 that not only fit my car with no/minor
modifications, but also had a USB input (rear), at least one auxiliary input,
support for aac, at least two 4v preouts, and a remote. This fit the bill
nicely.

Thanks to the included harness (not included from Amazon) I had this installed in about 15 minutes (not
including soldering or crimping). I've done quite a few installs in the past
so this was a piece of cake for me, but beginners will have no trouble
installing this unit with the included accessories and easy directions.

I use this unit with my 4GB flash drive and will be using it with my 30GB
wifi unit which will be here next week. If Pioneer made a unit just like
this without the cd drive, I would have bought it instead. Absolutely no
need for CD's in the car (all of my CD's are ripped upon purchase to FLAC
then converted as I see fit).

Sound quality is subjective of course, especially when you're listening to
compressed files, but being an audio enthusiast, I can tell you that this unit
plays my VBR mp3's as well as my Nero aac's as well as any other digital
audio player I've used and sounds as well as expected without onboard
amps and component speakers. This is definitely a good base for upgrades
in the future.

I'm a big fan of the wireless remote since I'm able to browse files/tracks
with almost no glancing at the unit itself.

Pros:

*Good sounding unit and ready for future upgrades
*Scans and plays my flash drives quickly with almost no wait between
tracks
*Display very readable in almost any lighting situation.
*Works well with ID3 tags.

Cons:

*The multicontrol knob would be cumbersome to use if i needed to use it,
but it works. It moves in all directions, but isn't flimsy. Learn to use the
included wireless remote.
*It would be nice to have a display option of Artist - Title using the ID3
tags, but you only have the options of Filename (I don't name my files
Artist - Title and I don't care to see what extension the file is), Folder, Artist,
Track, Comments. Not a deal breaker, but since the information is there,
I'm sure Pioneer could fix that.

Getting the usb to work
I went to Best Buy to check out the new Pioneer P4000UB car stereo, I brought a flash drive with mp3s on it to test out the usb port. The usb port is in the back of the unit and the salesman had no way to let me try it out. I figured it would work fine so I bought it anyway. It comes with an extension for the usb port that basically hangs loose or where ever you can find to put it. The first time I tried it I got an Error 23 on the display, so I was slightly unhappy. The unit is really too new to have much feedback on the internet so I was stuck figuring it out by myself. After a day of research I finally figured out the problem. My flash drives were formatted as NTFS and needed to be refomatted as FAT32 or FAT16. It was really a simple fix that after reading more was in the manual but not in the troubleshooting area. I'm very happy with the unit now.

OK, but with some major drawbacks...
At its most basic, this is an OK product. The whole multi-control business is pretty flaky and I use the included remote whenever possible. The sound quality is great, however, and the price is fair.

But there are some really, really big drawbacks:

1. If you have an early iPod as I did, this isn't going to work for you. Way in the back of the manual it states that only 5th generation or later iPods are supported. Check page 57 of the manual (Google for a copy) and see if your iPod is listed. For older iPods, I understand that there is an external cable that you can buy for another chunk of cash, but I've heard that that has its own problems.

2. Since I couldn't use my iPod, I opted to use an external USB hard drive (a Seagate FreeAgent Go). While I did have to reformat the drive to Fat32 and buy a USB cigarette-lighter adapter to boost the power to the drive, it works well. EXCEPT that the DEH-P4000UB only recognizes 500 folders! If you have a significant music collection, and if that music collection is organized like most with a folder for artist and subfolders for albums, the 500 folder limitation is hit very, very quickly. I can't imagine what the thought process was that brought about this limitation. Since the unit can read 15,000 songs, and say an average album is 12 songs, you're talking over a thousand folders just for albums. Then artist folders on top of that! The P4000UB just ignores folders that go over the 500 limitation. The only way to work around it is to flatten out your music collection. This ends up being very time consuming and almost impossible if you're using something like iTunes with its default folder-based organization to manage the music on the external hard drive.

3. You can't specify the order the songs play in. Really. I'm not sure what the P4000UB is using to determine playback order. Since I had to flatten out my music collection as described in 2, I just have a bunch of songs in a few folders. Sometimes they play back in the correct order. Sometimes not. There is no recognition of song order in tags, alphabetization or anything else. The manual claims that you can force the playback order by prepending a sequence number to each song, and then subsequently says that this probably won't work (!) (manual pages 53 and 54). I suspect it might be playing back based on something like the file creation time or something.

All in all, if I had it to do over again I would have researched it more carefully. I am sticking with it for a variety of reasons, but mostly because I put so much time into making it work that I want to get some kind of return. Because of the sound quality and price, I maintain that it's an OK product. But not really worthy of a recommendation.