The LDA low distortion power amplifier home

The Euraudio LDA low distortion power amplifier is a family of four high performance power amplifier DiY kits for experienced hobbyists interested in high-end audio. Each kit contains the LDA162 or LDA172 low distortion power amplifier board with high power or medium power component set and other necessary circuitry like power supply, protection circuits, and relay. There are dual mono, stereo and mono kits available.

This is the start page of the LDA, from here you can reach

- the description of the LDA kits,

- the assembly instructions of the LDA 53DM_np, LDA 43S_np, LDA 53M_np, and LDA MIN_np kits,

- some development information about the LDA project,

- and the specifications of the kit components.

The LDA kits (currently at a non-profit price!)

Click the image below if you want to read about the LDA kits available for sale.

Assembly instructions

Click the images below for the assembly instructions of the various kits.

          

Development information about the LDA project

Click the image below if you want to read how the LDA project evolved. See some prototype images, measurement results, and read about listening tests.

Specifications of the kit components

Click the links below for the specifications of the various kit components. Boards are mono, unless otherwise noted.

Power amplifier

LDA172 Low distortion power amplifier board

Power supply & relay

PSSR350 Power supply & ultra low distortion solid state relay board

PSMR101S Power supply & mechanical relay board, stereo -- to be provided

Protection circuit

APBF/APBM Protection circuit board

Mains input/distribution & auxiliary power supply

MIB12 Mains input/distribution & auxiliary power supply board, configurable for mono/stereo/dual mono amplifier

Power supply

PS1S Power supply board, stereo

Protection circuit with relay

SPRS Simple protection circuit & relay board, stereo

 

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