Since 2006, we have built and sold our
limited production run CD transport every year. In 2006 we sold the
CD-1, 2007 we sold the CD-2, 2008 we sold the CD-3, 2009 we sold the
CD-7, this year we sell the CD-7SE which is our best CD transports to
CD-7SE transport has two RCA and two BNC outputs for a total
of 4 output sockets. Coaxial #2 RCA and BNC outputs apply ACSS/CAST
technology, each individual output socket has a different sound flavor
so the owners can choose their preferred sound.
Uses all audiophile grade components,
including DALE resistors, EVOX caps (Germanic brand), custom order
NOVER (UK brand) caps, all audiophile grade input & output sockets
and gold IEC socket.
1 Configuration¡GMultiple and
independent shielding of Power transformers, power supply, signal
processing, disc drive , coaxial output circuit, and clock circuit to
avoid interference with each other. To further enable the machine to
achieve the best results, we use a heavy-weight pure aluminum alloy
chassis to stop interference of eddy current of the transformer on the
line and all kinds of vibration, the net weight is 13KG.
Jitter: The use of low-jitter
clock and power driver circuit, independent and parallel dual regulated
power supply circuit of the clock power supply, ensures clean and
stable clock signal.
Disc player and DSP¡GCD-7SE employs high
performance SONY DVD disc player, it can accurately and quickly read
the data, and reduce error data, with computing power and strong signal
of the DSP processor, it has 64MB memory. We have redesigned the system
by removing the DVD functionality, as a result it only plays CD disc,
the DSP computing power is equivalent to Pentium 2 computer, hence it
can better perform signal and processing operations, resulting
ultimately in sound quality improvement. General load CD dedicated
processing circuits, such as Philips and the CDM4, have a memory of
only 4KB, which is only equivalent to a 286 grade/level of computer.
Coaxial output¡G No matter how good the
data processing circuit, the SQ also depends on the coaxial output
transmission circuit, CD-7SE uses the current digital signal
transmission, which can better minimize the impact of JITTER on the
digital signal sent to DAC, this circuit is compatible with 99% of
standard market designed DACs , the sound quality is much better than
the traditional IC or transistor output circuit, it is more
comprehensive and significantly reduces the demands on the coaxial
cable. CD-7SE also has another built-in high-performance coaxial
output, which is a transistor circuit and has been well received by
users for many years, most users agree that the sound quality is better
than traditional IC output circuit. This circuit is also the first of
its kind in the world and designed by me (Kingwa), and the original
version of the circuit was posted in the <<Radio and
Television>> in 2005. The user can output through the use of
different circuits or different output sockets and the sound quality
will be different from each socket.
CD-7SESE uses three R-core transformers to
match different electric circuitry. The power transformers and
rectifiers are carefully shielded from the electric field of the power
transformers and rectifiers' frequency transmission. More than 38,000uf
audio grade NOVER capacitors are used to ensure ample and smooth power
feed. The NOVER capacitors are specially custom order by NOVER (U.K.)
according to Audio GD's requirement. A total of 10 PSU groups are
applied. 8 groups of Class-A parallel voltage regulators are combined
into two groups of cascade-like parallel voltage regulators to lower
the internal resistance and to purify power supply. To achieve Silent
operation, the control circuit and motor serve circuit are powered with
Output sockets¡G CD-7 has two RCA coaxial and two BNC coaxial
outputs, they are all 75 ohms. BNC has the least JITTER, 10 times or
even lesser than balanced digital output. RCA sockets will suit the
tastes of a little softer listening preferences of different users.
7 Function¡G CD-7 has automatic playback, it comes with a
multi-functional remote control (such as direct selection of tracks and
many other functions) made out of pure aluminum alloy. It has blue LED
display, we don't use the VFD screen , because the VFD screen will
transmit RF and effect the signal circuits.
Size¡G W430 X H110 X L430
(Includes two spare lasers, one Canare coaxial cable, you can choose
one of these cables, BNC+BNC or BNC+RCA or RCA+RCA ) (Price
listed is Excluding shipping charge)
1, CD-7SE has extremely high fidelity; its SQ is neutral, It
can show how good or how bad a recording is.
2, It is better not to stack gear one on top of the other ,
if necessary to stack CD-7SE on other gear, place a paper or other
things on the other gear's top, because CD-7SE has aluminium feet.
3, Attention must be given to choosing suitable power cable,
coaxial cable and output signal cable.
4, CD-7SE has automatic sleep function, we advise users to
turn the power off while not using the CD-7SE.
If paired to low grade DACs, it may not show how good the CD-7SE is.
6. The laser's life is the same as the
Philips CDM12 series, having around 3000 hours life. However, if a
scratched or dirty disc is played in the CD-7SE, the laser's life will
Because the shipping cost is expensive, if the laser dies, users
must replace it by themselves. But this is very easy and we can offer a
video to show how to change the laser assembly which costs only US$12
(our cost price).
The #2 coaxial output of the CD-7SE uses CAST technology to transmit
digital signal, and is compatible with 99% of the DAC brands in the
world without modification of your DAC. But there is still 1% of DAC
brands that aren't compatible with the CAST output, so CD-7SE has
another standard coaxial output (#1) that suits all DAC brands.
If you are not using the #2 coaxial output, you have to insert the
shorting plug into the RCA socket of #2.