QR Code Link to This Post This amplifier is powerful and musical. It puts out 100watts pr/channel but has a 500+watt headroom. It has powered speakers from 4 ohm inefficient speakers to 16ohm triaxials and never underperformed. If you need an amplifier and are looking for one that's affordable, this it it. You will be impressed and hard-pressed to find one that is equal without breaking the bank. You can view this amplifier at EarWax Records in.