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A pair of exceptionally high-quality power amplifiers featuring Exicon Lateral MosFETs made by Profusion. Delivers 100-200w of music power, depending on configuration - heatsink required (0.45K/W). Requires -/+48v power supply. Profusion are the exclusive manufacturer of Exicon Lateral MosFETs and we gauruntee their authenticity. We only use Exicon devices.

A pair of heat-sink mounting plates are also available (one for each amplifier module) - see options and images above

Sold as a pair - one of each stereo channel (left|right)

Small compact PCB (77mm x 61mm x 1.6mm) making it easy to fit into your enclosure.

This circuit is based on the trusted 'blameless' topology and features:
- Differential input stage featuring two Sziklai-pairs
- Sziklai VAS with output-inclusive local feedback
- Fixed bias arrangement - straightforward to setup
- Space for up to two pairs of Lateral MosFETs. Can acheive 250W with two pairs of double-die FETs

This module generates very little heat if installed on a good heatsink. See Datasheet

Assembled PCB: connectors purchased separately and soldered on. See datasheet for detail

Blank PCB: full parts list and assmembly instruction incl setup and biasing steps are in the Datasheet

Specifications:

PCB Dimensions

77mm x 61mm x 1.6mm

Channels

One

Gain

27dB (x22)

Input Impedance

22kΩ

Frequency Response

15Hz-35kHz

Output Devices

Exicon Lateral MosFETs

Output Impedance

< 0.1Ω

Damping Factor

90 into 8Ω

Supply Voltage

-/+35vDC to -/+70vDC. Recommend 48v to 56v

Idle Supply Current

100mA per pair of devices. 2 pairs of double die devices will dissipate 380mA and require adequate heatsinking

Transformer

Power Rating: 220-300VA - voltage depends on power requirement:

- 35-0-35 AC - 100W

- 40-0-40 AC - 150W

- 45-0-45 AC - 200W

- 50-0-50 AC - 250W

Output Power

100W to 250W, depending on configuration

Earth Nets

Power and Audio (separated by loop breaker)

THD

Typically 0.009% at 500Hz - mostly lower 2nd order