ASi Teknologies
"Ultra High Performance Hi-Fi Modifications & Products"
Esound CD-E5 (All Models)
Ultra High Performance R
ebuild/Modifications
We Ship World Wide!
"Budget" Mod Package Rebuild Descriptions

Ultra High Speed Diode Bridge
We replace the stock noisy/glary/grainy rectifiers with very low impedance ultra fast
rectifiers. These are absolute superior to the stock diodes rectifiers, removing the glare,
grain and grit from the sound and video and allowing you to realize a much cleaner audio
performance! !

Ultra Low Impedance Rubycon Capacitor Replacements
These capacitors are much more open sounding, very neutral and have more speed than
any other cap on the market.  The Rubycons offer sheer speed and openness unlike any
other cap.

Re-wire the AC input, Re-engineer the power supply board
This brings more resolution, better defined and deeper bass and more sonic character.
This is the final tuning of the supply to make sure the sound is balanced on the output end.



Internal Soundcoat Damping-
Apply Soundcoat damping material to specific areas of the lid and cd transport tray to
minimalize the amount of internal vibrations and ringing.



Balanced/Single Ended Output stage Rebuild

Completely REMOVE the stock Esound discrete analog output stage (many active
parts) and replace entirely with passive very high quality Audio Signal Coupling
Transformers.

The stock Esound output stage is mediocre in build and rather decent in sound quality. However, there
are MANY ACTIVE parts in the signal path, such as op-amps and transistors. There are also many
resistors in the signal path as well. This is not the most optimal topology for signal coupling and HF
filtering.

Our approach is simple and instantly effective for the best sound:
Completely remove the entire active analog output stage, and replace it with a set of very high quality
Audio Signal Coupling transformers! We now have true balanced outputs! Now with the transformers we
can now effectively and inherently provide galvanic isolation from other components in your system. The
transformer stops High Frequency noises that occur from other components in your system. The also
provide a means of connect the Balanced outputs and RCA single ended outputs at the same time, with
both having similar sonic attributes. The noise floor in your music drops to a complete dark and black
level. More detail comes out of the music. The soundstage appears much larger, wider deeper with a
bold lifelike stance. Our approach is considered "state of the art" and this mod will easily alone take the
performance of this machine alone to a level that is unattainable by just about any stock player in
existence. We wire the transformers to the XLR jacks and the RCA single ended jacks.
This mod is the largest sonic improvement inside the unit.
Budget Modification $895 Installed/Shipped
Send your player in for mods
Introduction:

Long time has come as we have tried to find a stock unit that exhibits the best potential for a audio
modification rebuild.
Our criteria requires minimal diode bridges, excellent transport mechanism,
very close and tight digital circuitry, clock feeds direct to servo and a great DAC chip. No stock unit
has met these criteria for perfect design to rebuild from until now: Enter Esound CD-E5. The
Esound fills
our personal goals and demands for the perfect player to modify and make sound
absolutely killer
, better than ANYTHING out there. The hidden potential is unbelievable! If your
looking for the best sounding CD player that can easily beat the flagships out there, you need to go
with the Esound as it will give you performance you cannot buy even for $10K stock!!!!   World
Beater!
 NOTICE! 2016 Esound MOD UPDATES COMING SOON TO THIS PAGE:
New Mods such as BYBEE MUSIC RAILS, EMI/RFI Shielding, ASi OTM Low Impedance External
Battery Supply to run the whole player off the AC mains complete 100% battery powered cd
player! We have built many of these fully battery powered Esounds since 2006!
Request More Information about our Esound mods and any special request!
"Premium" Mod Package Rebuild Descriptions

Ultra High Speed Diode Bridge
We replace the stock noisy/glary/grainy rectifiers with very low impedance ultra fast
rectifiers. These are absolute superior to the stock diodes rectifiers, removing the glare,
grain and grit from the sound and video and allowing you to realize a much cleaner audio
performance! !

Ultra Low Impedance Rubycon Capacitor Replacements
These capacitors are much more open sounding, very neutral and have more speed than
any other cap on the market.  The Rubycons offer sheer speed and openness unlike any
other cap.

Re-wire the AC input, Re-engineer the power supply board
This brings more resolution, better defined and deeper bass and more sonic character.
This is the final tuning of the supply to make sure the sound is balanced on the output end.


Qty: (3) DEXA UWB (Ultra Wide Bandwidth) Ultra Low Noise Voltage Regulators-
The UWB Regulator is a high end replacement to the main (3) OEM 7805 +5vdc voltage
regulators used to regulate DC voltage in the Esound. Unfortunately the OEM 7805
regulators have very poor noise performance. Especially if there are external noise sources
around the OEM regulators, like ripple or load fluctuations.  In comparison to all the OEM
regulators, the UWB's have more than 100 times better ripple rejection, 10 times lower
noise, and no line and load regulation error. The result is a drastic improvement across the
entire spectrum and more dynamic range.


DEXA Clock Reference Clock Upgrade-
The OEM Esound master clock is a basic pierce oscillator which feeds directly into the ASIC
(DSP) chip . Phase noise and power supply injected noise here is high affecting all audio
formats with "jitter". The DEXA clock has an extremely low phase noise oscillator (around
1.5 picoseconds Jitter RMS) and dramatically improves all areas of playback. The ultra-low
jitter and noise performance of the D-Clock immediately releases impressive sound quality
& shifts the players tonality to remove hardness & harshness; the overall frequency range
is more natural and unforced. Lower frequencies on playback have greater impact, weight
and control. Greater dimension is added to music and movies, vocals and instruments
having improved spatial qualities with a more solid, palpable feel. The DEXA clock has a
very unique function of isolating the clock signal ground to the power supply ground, so
there is
no ground loop, and also there is no Mains Noise injection for the cleanest clock
signal possible.

The DEXA D-Clock now eliminates the need for a dedicated (and costly) external
dedicated power supply due to its inherent mains/ground isolation topologies.
 



Internal Soundcoat Damping-
Apply Soundcoat damping material to specific areas of the lid and cd transport tray to
minimalize the amount of internal vibrations and ringing.


Balanced/Single Ended Output stage Rebuild

Completely REMOVE the stock Esound discrete analog output stage (many active
parts) and replace entirely with passive very high quality Audio Signal Coupling
Transformers.

The stock Esound output stage is mediocre in build and rather decent in sound quality. However, there
are MANY ACTIVE parts in the signal path, such as op-amps and transistors. There are also many
resistors in the signal path as well. This is not the most optimal topology for signal coupling and HF
filtering.

Our approach is simple and instantly effective for the best sound:
Completely remove the entire active analog output stage, and replace it with a set of very high quality
Audio Signal Coupling transformers! We now have true balanced outputs! Now with the transformers we
can now effectively and inherently provide galvanic isolation from other components in your system. The
transformer stops High Frequency noises that occur from other components in your system. The also
provide a means of connect the Balanced outputs and RCA single ended outputs at the same time, with
both having similar sonic attributes. The noise floor in your music drops to a complete dark and black
level. More detail comes out of the music. The soundstage appears much larger, wider deeper with a bold
lifelike stance. Our approach is considered "state of the art" and this mod will easily alone take the
performance of this machine alone to a level that is unattainable by just about any stock player in
existence. We wire the transformers to the XLR jacks and the upgraded WBT RCA single ended jacks.
This mod is the largest sonic improvement inside the unit.
Premium Modification $1495 ON SALE Installed/Shipped
Send your player in for mods
, approx 15 Day Turnaround
"Statement" Mod Package Rebuild Descriptions

ASi custom handmade Ultra High Speed Diode Bridge
We replace the stock noisy/glary/grainy rectifiers with ASi custom handmade very low
impedance ultra fast rectifiers. These are absolute superior to the stock diodes rectifiers,
removing the glare, grain and grit from the sound and video and allowing you to realize a
much cleaner audio performance! !

Ultra Low Impedance Rubycon Capacitor Replacements
These capacitors are much more open sounding, very neutral and have more speed than
any other cap on the market.  The Rubycons offer sheer speed and openness unlike any
other cap.

Re-wire the AC input, Re-engineer the power supply board
This brings more resolution, better defined and deeper bass and more sonic character.
This is the final tuning of the supply to make sure the sound is balanced on the output end.


Qty: (3) DEXA UWB (Ultra Wide Bandwidth) Ultra Low Noise Voltage Regulators-
The UWB Regulator is a high end replacement to the main (3) OEM 7805 +5vdc voltage
regulators used to regulate DC voltage in the Esound. Unfortunately the OEM 7805
regulators have very poor noise performance. Especially if there are external noise sources
around the OEM regulators, like ripple or load fluctuations.  In comparison to all the OEM
regulators, the UWB's have more than 100 times better ripple rejection, 10 times lower
noise, and no line and load regulation error. The result is a drastic improvement across the
entire spectrum and more dynamic range.


DEXA Neutron Star Flagship Clock Upgrade-

We add a world class flagship quality jitter reduction circuit called the Neutron Star to
replace the stock circuit reference crystal oscillator for a seriously drastic reduction in jitter
in the digital circuits. Expanded soundstaging, additional low level detail, focus and
resolution are examples of this major mod component. The DEXA clock has a very unique
feature, unlike other clocks on the market, as the clock signal is isolated from the power
supply ground, so you get no ground loop, and also you get no Mains Noise injection.  This
eliminates the need of a dedicated (and costly) external dedicated power supply for the
new clock. If you want the best, you have to get the Neutron Star!!!



Internal Soundcoat Damping-
Apply Soundcoat damping material to specific areas of the lid and cd transport tray to
minimalize the amount of internal vibrations and ringing.


Balanced/Single Ended Output stage Rebuild

Completely REMOVE the stock Esound discrete analog output stage (many active
parts) and replace entirely with passive
Signature quality Audio Signal Coupling
Transformers.

The stock Esound output stage is mediocre in build and rather decent in sound quality. However, there
are MANY ACTIVE parts in the signal path, such as op-amps and transistors. There are also many
resistors in the signal path as well. This is not the most optimal topology for signal coupling and HF
filtering.

Our approach is simple and instantly effective for the best sound possible:
Completely remove the entire active analog output stage, and replace it with a set of signature quality
Audio Signal Coupling transformers! We now have true balanced outputs! Now with the transformers we
can now effectively and inherently provide galvanic isolation from other components in your system. The
transformer stops High Frequency noises that occur from other components in your system. The also
provide a means of connect the Balanced outputs and RCA single ended outputs at the same time, with
both having similar sonic attributes. The noise floor in your music drops to a complete dark and black
level. More detail comes out of the music. The soundstage appears much larger, wider deeper with a bold
lifelike stance. Our approach is considered "state of the art" and this mod will easily alone take the
performance of this machine alone to a level that is unattainable by just about any stock player in
existence. We wire the transformers to the XLR jacks and the upgraded WBT Silver RCA single ended
jacks. This mod is the largest sonic improvement inside the unit.


The difference between the Premium and the Statement rebuild is the Diode Bridge assembly,
Neutron Star Flagship clock, Signature audio signal coupling transformers, Silver WBT Nextgen and
some proprietary tweaks.
Statement Modification $2250 ON SALE Installed/Shipped
Send your player in for mods
  ASi Premium rebuilt Esound CD-E5m (notice that we cut out the power
supply and the stock analog output stage, this is total custom rebuild
here! This player easily o
utperforms insanely high priced CD players,
from Esoterics, to Wadias to DCS system
. We have compared over 100
machines since 2005!
  Nice full "balanced" sound, so dynamic, so
resolute, so emotional, so natural, so pure!
We modify ALL
versions of the
Esound CD-E5
April 2016-
We are going
to update this
page soon with
new 2016 Mods