Sony SS-CS5 Upgrade Kit


The price is per pair!

We are now offering a more budget-friendly version of this kit.
Swapping the Sonicaps in the two tweeter circuits for budget polycaps with small 0.1uF bypass caps.

The price of Sonicaps have just gone up and it caused a slight increase in the cost of this upgrade. This kit includes everything you need to correct a number of issues and take this speaker to another level across the board. Please see the videos and measurements in the accordion below. The kit includes all new parts, a set of tube connectors, a half sheet of No-Rez and new wiring.

Upgrade Kit Measurements

Take a look at the before and after measurements. With the modification kit, there is no question that you will not only end up with a subjectively better sounding speaker, but the measurements back it up as well! 

Frequency Response Before

Horizontal Off Axis Before

Vertical Off Axis Before

Spectral Decay Before

Impedance Sweep Before

Frequency Response After

Horizontal Off Axis After

Vertical Off Axis After

Spectral Decay After

Impedance Sweep After