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iQube
Line Input
Headphone Output
Power Toggle
iPod Strap
USB Charger Cable
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iQube Reviews
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6Moons Review. Click image
The
first reaction has been posted on ipastudio forum, you can
read it
here.
The first review on Head-Fi-org,
read all about it
here.
A very elaborate thread on
portable amplifiers by a distinguished forum member (Skylab)
and a iQube review
here.
A review on Head-Fi.org, read
all about it
here.
Another review on head-Fi.org,
you can read
here all about it.
Quotes from different
visitors of the Head-Fi meet in Chapel Hill NC:
“The iQube was very impressive and
a real winner for me. Its imaging astonished me and the
sound was not boring neutral, but nothing was even close to
overbearing. Nothing there to complain about, its sound was
great, bass was tight, the amount of detail for its size was
unheard of for me.”
"The iQube, though, made
my jaw DROP. Paired with my Monica 2, I was absolutely
floored by the iQube, especially while playing a lossless
copy of the Fellowship of the Ring soundtrack. I may be
trying to get a hold of one of these (and a cable upgrade)
when finances allow for another upgrade".
See also
here. |
i-Qube Details
Lightweight, portable Headphone amplifier
High efficiency (90-95%) Class D amplifier
Runs on 4x AAA alkaline or rechargeable batteries, user replaceable
8-fold output buffer for a (near to) load independent output behavior
4th order feedback loop for minimum distortion
Fixed, phase-shifted carrier wave oscillator decreases inter-channel
distortion
Ultra low noise front end accepts any line level source without the need
for impedance matching
Top A-grade components used:
Medical graded double layer epoxy using HOFC (High Oxygen Free Copper)
Optimized board design enhances signal quality
Alps potentiometer
Vishay series 036 decoupling capacitors throughout
Panasonic stack film capacitors
Carbon signal resistors
Lumberg I/O connectors
Fully RoHS compliant
Retro art design, CNC machined aluminum casing
Rubber touch feel painted covers
Technical Specifications
Input impedance:
10k ohm
Voltage gain:
low gain: 2
high gain 7
Frequency response @ 200 mV into a 16 Ohm load:
5 - 50 kHz. (-1 dB)
Maximum output power per channel from 20-20,000Hz:
160 mW_16 ohm
80 mW_32 ohm
12 mW_200 ohm
Output impedance:
<0,1 ohm @ f<5kHz
< 1,5 ohm @ 20kHz
THD at 200mV output (typ) 0.01%:
(max) 0.03%.
Output noise:
10uV (unweighted)
Charge input:
any DC voltage between 5V and 20V, polarity protected
battery charge current: 0,3A
typical charger current consumption @ 5Vdc input: 0,4A
typical charger current consumption @ 20Vdc input: 0,1A
Dimensions:
Height: 23 mm
Width: 63 mm
Length: 107mm (incl. volume knob)
Inside
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