Yamaha M-45 Black

Yamaha M‑45 — Natural Sound Power Amplifier Fully tested • BPA‑grade restoration • Factory glue fully removed + component inspection The Yamaha M‑45 is one of the most respected mid‑series power amplifiers from Yamaha's late‑80s lineup — delivering clean, dynamic, Natural Sound power with the same design DNA as the M‑65 and M‑85. This unit has undergone a full BPA restoration, ensuring long‑term reliability and performance worthy of a collector‑grade piece. Restoration Work (BPA Standard) Glue remediation — Yamaha's factory adhesive is known to become corrosive with age. This M‑45 has been professionally treated: • All corrosive glue mechanically removed from affected areas • Surrounding traces cleaned, neutralized, and sealed • Component legs inspected for oxidation • Any compromised resistors, diodes, or caps replaced • Thermal pads and contact points checked • Full internal dust removal + contact cleaning Performance & Features • 125W RMS per channel into 8Ω • High‑current output stage with Yamaha's Natural Sound tuning • Dual power meters with pink LED illumination • Discrete driver and output sections • Heavy toroidal transformer for stable power delivery • A/B speaker outputs • DC, thermal, and overload protection circuits Condition • Fully tested — stable output, clean waveform, no DC offset issues • Glue remediation + component inspection completed • Faceplate clean, meters bright, controls smooth • Rear panel connections verified • Ready for long‑term use or pairing with C‑40 / C‑60 / C‑80 / C‑85 preamps