In this second of two articles on the Marantz SC-80 preamplifier and SM-80 power amplifier, we look at the SM-80 power amplifier. Specifically I detail the work required to restore this amplifier back to full working condition. The earlier article looks at work done to matching Marantz SC-80 preamplifier.
The Marantz SM-80 stereo power amplifier is a reasonably powerful, well-made, mid-range consumer amplifier from around 1990.… Read more
A customer recently asked me to look at his immaculate Marantz SC-80 preamplifier / SM-80 power amplifier combo. Both pieces were playing up and required work. In this article I will look at the preamplifier, the next article will examine work required to remedy the power amplifier.
The Marantz SC-80, and its partner, matching Marantz SM-80, are quality mid-range separates hailing from around 1990.… Read more
I was recently asked by a customer to repair and service his Marantz CD-63 KI Signature CD player. The player was misbehaving, not reading the table of contents (TOC) with some discs and was also skipping occasionally. I was actually really pleased to work on one of these classic disc spinners again. The Marantz players were all very similar across the CD-63 – CD-67 range and the SE and KI Signature models really only brought parts quality improvements in key areas, rather than different circuit layout.… Read more
I recently treated my Marantz 125 AM/FM Stereo Tuner to a very careful alignment and upgrade. This beautiful tuner, with upgraded power supply and output buffer, is easily the best sounding tuner I have had the pleasure of listening to.
After modification and alignment, I compared Marantz 125 to a Sansui TU-717 and several modern digital tuners including the gorgeous Kenwood L-1000T.… Read more