XFAMPS01 - Enclosed Stereo Audio Amplifier

LM1875 Class-AB 36W

This is a flat Class-AB audio Amplifier. All modules are made using though-hole components only, that are soldered to 3mm traces of single-sided FR-4 PCB. XF-AMPS01 is powered by regulated dual ±DC power supply that is decoupled from main via transformer. This unit features large capacitors, large heat sinks, phoenix connectors and double insulated enclosure. Driven by 2 LM1875 USA-made ICs this amp is build to last.

Features

• Stereo Output
• Total Output Power: 36W RMS
• Low Distortion: 0.015%,1kHz,20W
• Wide Power Bandwidth: 70 kHz
• Volume Control
• LED Power Switch
• MDF Enclosure
• Stand-by AC Power Draw: 3-4W

Specifications

• LM1875 Class-AB IC
• Optimal Load: 4Ω-8Ω/channel
• Input Impedance: 47k Ohm
• Power Input: 120VAC 60Hz
• Operating Temperature: 0-70°C
• AC Power Input: 120V AC 60Hz via Polarized Cable IEC-60320

Dimensions & Weight

Resources

XF-AMPS01 Amplifier Manual - PDF
XF-AMPS01_Amplifier_Manual.pdf (1.5mb)

XF-AMPS01 Thd and Freq Response
XF-AMPS01_thd_freq_response.pdf (241Kb)

Schemas, gerbers, models, masks and more:
XF-AMPS01 GitHub Repo