Audio & Tuner Section
Display + Remote Features
Bluetooth Technology: The Nakamichi NA250BTR CD receiver is
equipped with built-in Bluetooth (2.0+EDR) allowing you to make and receive
phone calls wirelessly through the receiver; as well as stream music wirelessly
from your smartphone to the head unit. In order to use
Bluetooth wireless technology, your phone must also be Bluetooth compatible and
be able to interpret certain profiles. This unit is compatible with the
following Bluetooth Profiles:
- Hands-Free Communication: HFP (Hands Free Profile)
- Audio Streaming: A2DP (Advanced Audio Distribution
Profile), AVRCP (Audio/Video Remote Control Profile)
Note: Due to the differences in Bluetooth technology, some
Bluetooth enabled devices may be incompatible, function improperly, or may
not support all features when used with the Nakamichi NA250BTR.
Hands-Free Communication (w/ Integrated Mic): The Nakamichi
NA250BTR allows for wireless communication between the head unit and your
Bluetooth-enabled iPhone, Android smartphone, or other Bluetooth compatible mobile
phone. You'll be able to answer incoming calls, as well as redial outgoing calls.
- Answer/End Incoming Call: When there is an incoming
call, the current audio source is muted and a ring tone is played via the
loudspeakers of the car sound system. The head unit's display will indicate
the phone number or display "Phone In" if there is no phone number. You can answer the incoming call from the head
unit's front-panel controls. You'll be able to speak into the head unit's
integrated mic on the front-panel during your
phone conversation, while the other party is heard through your vehicle's
- Dialing Outgoing Call: You can easily redial the last
number called from the head unit's front-panel controls. All other dialing
functions (like phone number, phone book, voice, etc) will have to be done
from your Bluetooth-enabled mobile phone first and then transferred to the
Note: you can transfer the voice from your vehicle speakers to
phone during a call for more privacy.
Wireless Audio Streaming: The Nakamichi NA250BTR
allows you to wirelessly play back stored music and music apps from your
Bluetooth-enabled Apple iPod/iPhone/iPad, Android smartphone/tablet, or other
Bluetooth-enabled devices using a Bluetooth A2DP/AVRCP connection. You can
control basic playback functions of your music on your Bluetooth-enabled device
from the NA250BTR's front-panel. Playback functions include Play/Pause and
Note: This unit does not display song/artist
information from Bluetooth audio devices, instead it will display "BT
Disc Player w/ ESP: The Nakamichi NA250BTR CD receiver features
a single disc player that will playback CD-Audio and finalized CD-R/CD-RW audio
discs. The CD receiver offers ESP (electronic shock protection) to prevent your
discs from skipping.
SD Card Slot: The NA250BTR CD receiver features an SD-card
slot located behind its detachable front-panel. The SD-card slot supports SD
and SDHC memory cards with MP3/WMA music files. The unit's face-plate must be
detached to insert or eject an SD/SDHC memory card.
Front-Panel USB Port: The Nakamichi NA250BTR features a front
panel USB (type-A) port that is hidden behind a flip-up cover. The USB port
enables connection and control of a portable USB mass-storage class (MSC)
device; such as select Android smartphones (Froyo/Gingerbread only), portable
digital audio players, or USB thumbdrives. The unit supports playback & control
of MP3/WMA music files loaded onto a compatible USB MSC device. USB portable
devices that can be charged via USB will be charged when plugged into the CD
receiver's USB port (max. 0.5A), and the vehicle's ignition switch is set to ACC
Note: The head unit's USB port does not support the Apple iPod, iPhone,
MP3/WMA Playback: The Nakamichi CD receiver supports the
following types of MP3 and WMA music files recorded onto CD-R/RW disc or loaded
onto a USB mass storage class device.
Flash: USB MSC, SD/SDHC
Level 1/Level 2
Playable File Types
MP3: bit rate of 32-320
kbps; sampling frequencies of 8-48kHz
rate of 32-320 kbps; sampling frequencies of 32, 44.1, and 48kHz
(v1.0 or later), WMA tag
Playback & Search Functions: You are able to search the music tracks
of music folders stored on a disc, SD-card, or USB device. You can also fast forward or
rewind through a track, and skip to the next or previous track. In addition, you
can activate repeat (file/folder/all) and random (folder/all) playback functions.
Off Insert/Eject + Auto Reload: A 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 and begin playback. If the ejected disc is not
removed within 10 seconds, the disc is automatically inserted again into the
loading slot to protect it from dust.
Aux Input: A front-panel stereo minijack is provided to
allow the connection of almost any portable audio source with a 3.5mm headphone
output (great for those non-Apple devices). Simply connect your portable digital
music player to the unit's front-panel auxiliary input, and you can listen to
the audio from the portable player through the speakers in your mobile audio
Audio & Tuner Section
20W x 4ch Amplifier: The Nakamichi NA250BTR CD receiver is equipped with a
20 watt RMS x 4 channel amplifier (50 watts Peak x 4 channels).
5ch/5V Preamp Outputs + Sub Control: The Nakamichi NA250BTR
features a pair of fading front- and rear-channel preamp outputs, as well as a
mono-subwoofer preamp output (all rated at 5V). When the subwoofer preamp output
is used, you are able to adjust its low pass crossover (80/120/160Hz) and gain
3-Band EQ w/ Presets: There are eight sound presets
(Pop, Techno, Rock, Classic, Jazz, Vocal, User, and Off/Flat)
that allow you to easily recall the best preset EQ curve for different types of
music. For further adjustment, the in-dash CD receiver features a built-in
||10, 12.5, 15, 17.5 kHz
||-7 to +7 dB
||0.5, 1.0, 1.5, 2.5 kHz
||-7 to +7 dB
||80, 100, 200 Hz
||-7 to +7 dB
Bass Boost: The head unit employs DBSS and XBass to
dynamically boost bass sound safely at any volume level.
Key Beep: The in-dash head unit provides an audible beep to
confirm button operation.
RDS AM/FM Tuner: The Nakamichi NA250BTR is equipped with a
built-in AM/FM tuner offering manual, seek, & preset tuning. The built-in tuner
provides 3 FM banks and 2 AM banks. You can store 6 radio stations in each bank,
giving you 18 FM and 12 AM preset stations. Stations can be preset manually or
automatically. To receive more radio stations or only stations with strong
signals, you can adjust the radio sensitivity (Local Seek feature). The Radio
Data System (RDS) feature displays radio broadcast information such as artist,
title, and album when listening to compatible AM/FM stations.
Note: You can set the built-in AM/FM tuner between US
standard and European tuning spacing.
Display & Remote Features
Detachable Face Plate: The Nakamichi NA250BTR features a detachable face to deter
theft and includes a hard-plastic face case. An optional soft face case (142DFC1X,
sold separately) can also be purchased for this unit.
Variable Color Illumination: The NA250BTR features
a variable color display illumination. You can choose from one of
twelve preset colors, have the unit scan through all preset colors continuously,
or customize your own color. The twelve preset colors include - White, Green
1/2/3, Amber, Pink 1/2, Purple 1/2, Blue 1/2, and Orange. You can customize your
own color by adjusting Red, Green, and Blue from 0-32.
Note: The head unit's button illumination remains bluish white.
Adjustable Dimmer: You can adjust the brightness of the head unit's
display between High or Low.
12/24-Hour Clock: The in-dash head unit offers a switchable
12- or 24-hour clock display. The clock is only displayed when activated; it is
not displayed at the same time as song/artist, station, and track information.
Demo Mode: This unit features a Demo mode which can be
turned On or Off within the menu.
IR Remote: The Nakamichi NA250BTR comes supplied with an 8-button IR
remote control for wireless operation of the CD receiver. The remote provides
Power, Volume, Mute, Source, Audio, and Playback controls. The remote operates
off of a single CR2025 Lithium cell 3V battery.