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I will subwoofer amplifier, smps power supply design class d audio power pcb, class ab
PCB EXPERT
I design electronics as complete working systems, not isolated boards. A low-noise audio PCB depends on the amplifier stage, SMPS power section, signal path, and layout all working together.
I desig...
About this Gig
Need a subwoofer amplifier power supply that actually delivers clean bass without shutdown, hum, or voltage drop?
I design custom subwoofer amplifier power supplies for Class D, Class AB, active subwoofer, DIY audio, car audio, and home audio systems.
A lot of subwoofer builds fail because the power stage is wrong not the amplifier.
Typical problems buyers usually face:
bass hits and voltage drops
amplifier goes into protect mode
hum, ripple, switching noise
overheating MOSFETs or rectifiers
weak output power under load
unstable feedback loop in SMPS
wrong transformer, capacitor, or rail sizing
I help solve that at the design stage.
What I can design
SMPS power supply for subwoofer amplifier
Linear transformer-based power supply
Dual rail audio power supply
High current rectifier and filter stage
Capacitor bank sizing
Rail voltage calculation based on speaker load
PCB-ready schematic guidance
Noise reduction and ripple optimization
Suitable for
active subwoofer amplifier boards
plate amplifiers
DIY subwoofer projects
car bass amplifier power stages
home theater low-frequency amplifier systems
FAQ
What information do you need before starting?
I usually need amplifier power rating, speaker impedance, input voltage, preferred topology SMPS or linear, and whether it is for home audio, car audio, or active subwoofer.
Can you match the power supply to my existing amplifier board?
Yes. If you already have an amplifier PCB, send photos, model number, or schematic and I can design the right supply around it.
Can you help if my amplifier goes into protect mode or loses bass power?
Yes. That is often caused by rail sag, poor filtering, wrong current sizing, or unstable supply behavior.
Do you design SMPS for Class D subwoofer amplifiers?
Yes. Class D subwoofer amplifiers often need careful rail sizing, feedback stability, and noise control.
Will you provide PCB layout too?
This gig focuses mainly on power supply engineering and design guidance. If you need full PCB layout, mention it before ordering.
