05 July 2007

Valli's LandMark in Progress

Here are some actual LandMark pictures sent by one of our DIY'ers from UK.


26 June 2007

A Testimony on the LandMark

June 16, 2007

What sweet timing, I just finish the landmark and on the same day you send me , series 2 plans, to drool over.

To say I like the sound of the LANDMARK is an understatement, it's ABSOLUTELY AWESOME !!!

Sweet, subtle yet powerful, the separation, detail of instruments is fantastic. It has rhythm and prat by the bucket loads, the landmark drives my linn isobariks like no other.

Valli, UK

15 June 2007

New!!! Another Jeriel Lacar's LandMark (in Stereo)

Checkout this out....

Another fine piece of DIY audio amplifier.

04 June 2007

For those who have requested...

For those who have requested (and who will request, too) the Series 2 and LandMark Series plans, our warmest thanks. We hope you are working on our featured designs following carefully the steps and detailed instruction on the files we have sent. We look forward to hear from you.

19 May 2007

Landmark Amplifier

Here is the schematic of our Landmark amplifier module, our first amplifier design using MOSFETs as power output devices.

09 May 2007

Landmark Amp Actual Sample Pic

Here's a closer pic of the Landmark Amp module. For those who are interested with the details of this fine piece of audio amp (schematics, pcb and placement guide, etc), start sending your e-mail to us and we will gladly reply. Our contact e-mail is

06 May 2007

Series 2 Amplifier

Here is the circuit for the BJT-output amplifier module. Several have already been made and have found their applications in the comfort of home audio systems, professional and business establishments, school and public address systems, and students' project of several engineering and tech-voc institutions. The circuit is tried and proven and have gone through the mill for several years.

Audio Amplifer Book

Here is the book that provides the answer to the searches and challenges of personally designing and assembling your own power amplifier circuit - the very heart of audio power amplifiers.

It is oriented for the audio enthusiasts and hobbyists with an inclination to electronics but may not have a degree in electronics engineering.

The price of the book is PhP 200.00 (shipping and handling not included)

29 April 2007

Mark Corpuz' LANDMARK

February 2006
Supply voltage:
+/- 70 volts


January 2005
Supply line: +/- 75 Volts (Bridged for 1000 watts)


Assembled by Jeriel Lacar of VOA, Tarlac BRIDGED for Subwoofer Use

Various Amp Modules and Description

SERIES 2 - a complementary BJT output design. This module can be configured to have an output from 50 watts RMS to 300 watts RMS depending on the power supply.

SERIES 2 Quasi - a module similar in design to the Series 2 but using only NPN power output transistors.

LANDMARK - a first true all N-Channel MOSFET amplifier module compared to the Series 2.

NEW!!! V1 - an all N-Channel MOSFET amp module having the "sonic signature" of the Series 2 and Landmark. A breakthrough design that will surely satisfy most avid and crucial listeners.

V2 - A powerful version of V1 with the same specifications.

10 April 2007


Welcome to the blog site for LE Amplifiers. This site will cater to diy'ers using power amp modules designed by BS Laguisma. Pictures, comment,and new breakthroughs and designs will also be posted. Stay tuned....