In December of 2023 I picked up a pair of Pioneer CS-63DX speakers in Eastern Washington. Both of the PT-103F tweeters were not working (I fixed one in this video:    • Can you fix a Pioneer PT-103F tweeter?  ) and the crossover needed to be recapped. The beautiful walnut veneer cabinets were scratched and chipped so I sanded them and refinished them. I also replaced the capacitors in the crossover and made a parts list below for most of the resistors as well.
These speakers were top of the line when they were released in 1971 by Pioneer but how has that sound held up over time? I tend to find speakers from the early 70's to have a muddy sound that muddles many of the frequencies together and focuses on mid bass and lacks any solid bass below 45hz and these speakers fit that description.

Parts list: https://docs.google.com/spreadsheets/...


Chapters:
00:00 Intro
00:15 Talking about the PT-103F horn tweeter and how to fix them
00:35 Sanding the Cabinets
01:03 Filling holes with Silicone
01:16 Staining the Cabinets
01:48 Cleaning the Wood Grills
02:36 Fixing a Manufacturing Flaw
03:32 Wax & Oil for the Cabinets
03:50 Pioneer CS-63DX vs. Tannoy Monitor Gold 12
04:33 Listening Thoughts
05:17 Recapping the Crossover
08:34 Replacing the Metal Lattice Grill Clips
09:12 Sound Test After Recap
10:06 Recapped CS-63DX vs Tannoy Monitor Gold 12
10:46 Thoughts on the Improved Sound
11:19 Veneer Repair & Closing Thoughts

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My name is Matt. I live in Washington State and create content around vintage stereos and other audio equipment. I approach the hobby from a technical standpoint and am learning about circuit design and reparing and calibrating amps, turntables, speakers, etc. I really appreciate a good aesthetic and the vintage stuff fits my taste.

Instagram: @Shuksanaudio
Tik Tok: @Thedealydeal