Our Product Research Team
At Crutchfield, you'll get detailed, accurate information that's hard to find elsewhere.
That's because we have our own in-house Product Research team — they open the box,
verify contents, check the owner's manual, and record dimensions, features and specs.
We stay on top of new products and technologies to help people make informed choices.
Features
Specifications
Features
Overview: The NuForce icon iDo is an audiophile-grade DAC and
Headphone amp for select Apple iPads, iPhones, and iPods. Featuring audiophile-grade
24-bit D/A converters, the iDo extracts the original digital audio data from your
compatible Apple device and then coverts the digital audio data to a high-quality
analog signal for use with headphones or your home stereo system. The iDo offers a
built-in headphone amplifier capable of powering hard-to drive headphones to their
full potential. The iDo's analog RCA and coaxial digital S/PDIF connectors interface
with your home stereo system. The iDo is ideal for music enthusiasts who primarily
listen to their digital music libraries stored on their Apple devices.
USB Port with Apple 30-pin Charge/Sync Cable: You can connect
select Apple mobile devices (iPad/iPhone/iPad) to the icon iDo's USB (type-A) port
with the Apple approved and included 30-pin sync/charging cable (or the Lightning
cable included with your iPod/iPhone in the case of the newer models). In addition
to transmitting audio, the iDo will charge your connected Apple device. The NuForce
icon iDo is compatible with the following Apple devices (as of 2/21/2013):
|
iPod Model |
Generation |
Tested Version |
Audio Output |
Charging |
|
Headphone |
Stereo RCA |
Coaxial Digital |
|
dock connector |
3rd |
n/a |
N |
N |
N |
N |
clickwheel
color |
4th |
n/a |
N |
N |
N |
N |
|
mini |
1st |
n/a |
N |
N |
N |
N |
| 2nd |
n/a |
N |
N |
N |
N |
|
video |
5th |
1.3 |
N |
N |
N |
N |
|
classic |
80GB |
1.1.2 |
Y |
Y |
Y |
Y |
|
120GB |
2.0.1 |
Y |
Y |
Y |
Y |
|
160GB |
2.0.4 |
Y |
Y |
Y |
Y |
|
nano |
1st |
1.3.1 |
N |
N |
N |
N |
|
2nd |
1.1.3 |
Y |
Y |
Y |
Y |
|
3rd |
1.1.3 |
Y |
Y |
Y |
Y |
|
4th |
1.0.4 |
Y |
Y |
Y |
Y |
|
5th |
1.0.2 |
Y |
Y |
Y |
Y |
|
6th |
1.1 PC |
Y |
Y |
Y |
Y |
|
7th |
1.01 PC |
Y |
Y |
Y |
Y |
|
touch |
1st |
2.2.1 |
Y |
Y |
Y |
Y |
|
2nd |
4.2.1 |
Y |
Y |
Y |
Y |
|
3rd |
5.0.1 |
Y |
Y |
Y |
Y |
|
4th |
5.0.1 |
Y |
Y |
Y |
Y |
|
5th |
6.0.1 |
Y |
Y |
Y |
Y |
|
iPhone |
2G |
3.1.3 |
Y |
Y |
Y |
Y |
|
3G |
4.2.1 |
Y |
Y |
Y |
Y |
|
3GS |
4.3.5 |
Y |
Y |
Y |
Y |
|
4 |
5.0.1 |
Y |
Y |
Y |
Y |
|
4S |
5.0.1 |
Y |
Y |
Y |
Y |
| 5 |
6.0.1 |
Y |
Y |
Y |
Y |
|
iPad |
1 |
5.0.1 |
Y |
Y |
Y |
Y |
|
2 |
5.0.1 |
Y |
Y |
Y |
Y |
| 3 |
6.0.1 |
Y |
Y |
Y |
Y |
| 4 |
6.0.1 |
Y |
Y |
Y |
Y |
|
mini |
6.0.1 |
Y |
Y |
Y |
Y |
Note: The NuForce icon iDo is designed
to work only with Apple iTunes and iPod software. Apple
iPod/iPhone software updates may change functionality
results. If you download a newer software version, you
may need to reset the device and your iPod/iPhone to regain
functionality. If this doesn't work, you may need to wait until a newer software
update is available.
24-bit DAC: The NuForce icon iDo features audiophile-grade
24-bit D/A converters that operate exclusively at the data's native sample rate
for bit-perfect, low-jitter music file playback (no sample rate conversion). The
iDo extracts audio data in its original digital form (in USB Host mode) from your
Apple mobile digital device, delivering bit-perfect, low-jitter, audiophile-quality
music file playback. As a result, the icon iDo delivers audiophile-grade CD quality
sound to digital music files stored on your Apple mobile digital devices.
Note: The maximum sample rate currently
supported by Apple is 16-bit/44.1kHz or 24-bit/48kHz.
iPod DAC Bypass: Apple uses its own audio codec, Apple Lossless
Encoder (ALE), to compress and store music files on its devices in original CD
quality without loss. However, even ALE files only sound as good as the default
DAC (digital-to-analog converter) found within the mobile digital device. The
icon iDo bypasses the built-in DAC and extracts the audio data stored on the
device in its original digital form in USB Host Mode. It then converts the
high-quality files for bit-perfect and low-jitter music playback.
Headphone Amp: The icon iDo also offers a built-in headphone
amplifier capable of powering power-hungry headsets, giving users a total audio
experience. By properly powering headphones, the icon iDo enhances the auditory
performance of the headphones because optimal amperage is being delivered to
them, allowing for greater audio clarity. The icon iDo is equipped with a 3.5mm
headphone jack to connect a set of headphones for private high-quality sound
playback.
Analog & Digital Outputs: The NuForce icon iDo is fitted
with an analog stereo RCA output and a coaxial digital output. The icon iDo plugs
into your home stereo system using stereo RCA cables or a single coaxial cable
(both sold separately).
Digitally Controlled Volume Control: Digitally controlled
analog volume control provides precise control, accurate channel tracking, and
superior resolution. The volume is set to 10% when the iDo is turned on. The
volume level is indicated by the relative position of the Blue LED indicator
on the front-panel.
External Power Supply: The NuForce icon iDo operates off of
standard household current using the supplied AC power adapter. The external power
adapter is separate from the icon iDo to further improve sound quality.
Note: Power button is located on back
of unit.
Specifications
Input Section:
- USB: type-A for iPod, iPhone, or iPad
- Max Sampling Rate: 48kHz
- Maximum Resolution: 24-bits
Output Section:
- Analog Output: RCA, 2Vrms
- Digital Output: coaxial RCA 75-Ohm
- Headphone Output: 3.5mm mini-jack (16-300
ohm / 12mW @ 300-ohm)
Frequency Response: 10Hz to 20kHz (-0.5dB)
THD+N: 0.01%, 1kHz, 1.2 Vrms
Signal-to-Noise Ratio: >95 dB
Power Requirement: 6.5V, 2.3A; 100-240VAC