L C Audio Technology / CD Upgrades

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LClock XO3

ZAPfilter 2

AC97 Upgrading

Accessories

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L C Audio Technology
H.C. Andersensvej 56
8230 Aabyhoej
Denmark

Contact
info06@lcaudio.dk
or Gert Frederiksen
+45 6062 9017

Technical support
support@lcaudio.dk

Webmaster
web07@lcaudio.dk

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CD / SACD / DVD Upgrade products.

LClock XO3!

Most commercial CD, SACD and DVD players can be upgraded for better sound quality. This is one of our most important business areas, and we can offer effective solutions to almost any model.

The upgrade products are not tied to the specific model or brand, as the products have much the same effect in different models. Our upgrade solutions start with the LClock XO 3, a high precision reference clock for CD, SACD and DVD players. It is a module that is built into the player,

and improves the soundstage width, height and depth, and furthermore gives a more firm and distinct bass.
The other weak point of commercial players is that usually the analogue stage consist of low cost / poor performance operational amplifiers. This means that changing these op-amps to better types or even a real Class A analogue filter can dramatically improve performance, and give more liquid and easy flowing sound in the treble, and more warmth to voices.

LClock XO3 features:

Extremely low jitter.

Dual clock outputs with gold plated HF connectors (SMB).

Immediate Clock Signal, the capacitor bank is charged before coupled into the active circuit.

3V / 5V output level selectable.

New ultra low noise power supply reference.

RG174 coaxial cable with connector for the clock output included.

Ultra fast (5,2ns) voltage comparator with excellent S/N ratio.

Disable function for i.e. DVD players with standby mode.

4 separate voltage regulators.

4-layer high quality PCB with two screening ground planes.

1 ppm frequency precision (ppm = parts per million. For example 17hz for a 16.9 MHz clock)

Voltage monitor with blue 'OK' LED.

Advanced low noise design (91 active components).

XO3 is adjusted with the GPS network as reference. Hence the absolute frequency is precise (the network clock is inside 1µhz)

ZapFilter 2

The ZAPfilter 2 is a complete analogue stage, which does all the functions from the DAC chip to the output plugs. So it doesn't matter what model or brand it should interface to, but rather the instructions are tied to the type of DAC chip used in your player.
Everything on the ZAPfilter 2 is state of the art quality: Vertical linear low noise transistors in pure single Class A mode, filter caps in MICA / Silver types, bypassing is not capacitors, but true shunt regulators, that are linear from DC to 10 MHz. A separate mains power supply is bundled with the ZAPfilter, to make it fully independent of the CD, SACD or DVD player.

The ZAPfilter is a costly solution, and will lift almost any CD player up in the high-end class, even modest models, as it turns out that any transport can read discs almost without errors, and most modern DAC chips sound pretty much the same. The ZAPfilter can not make your 200 $ CD player look like a 2000 $ model, but it can sure make it sound like it!