SS-115 Capacitor and Op-amp Upgrade

The SS-115 has a plethora of electrolytic capacitors that required changing. Firms usually provide a capacitor upgrade service to improve the sound quality, however in this Equalizer; the capacitors had leaked and required replacing. I decided to fit high-end ones, as I wanted the sound to be the best it could possibly be as it makes a huge difference at the preamplifier stages. Whilst upgrading, I noticed a JRC4559D operational amplifier IC and decided to upgrade that as well by first fitting a chip socket first.

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