CANON S-50 SPEAKERS (SUPERCHARGED MODIFICATIONS)

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OSIB16

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CANON S-50 SPEAKERS (SUPERCHARGED MODIFICATIONS)
« on: 31 May 2025, 08:13 pm »
I started this thread to document the extensive modifications that I did to some vintage 1991 Canon S-50 Wide Imaging Stereo loudspeakers. These are some of my favourite speakers as a child, bringing back some wonderful memories. The looks are straight out of Star Wars. Unfortunately, due to restrictive internal cabinet space limitations, I was not able to install exotic capacitors. However, I did re-engineer the cabinet structure internally to fix the vibration issues, and also removed any unnecessary components, to get the cleanest and minimalist signal path, free from distortion. The finest wiring from Neotech and DUELUND with cotton sleeve was also installed.

The end result, is that the finished speakers produce some of nicest sounds that I have heard.
« Last Edit: 31 May 2025, 09:21 pm by OSIB16 »

OSIB16

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Re: CANON S-50 SPEAKERS (SUPERCHARGED MODIFICATIONS)
« Reply #1 on: 31 May 2025, 08:15 pm »
Some images…






OSIB16

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Re: CANON S-50 SPEAKERS (SUPERCHARGED MODIFICATIONS)
« Reply #2 on: 31 May 2025, 08:17 pm »
New clear perspex circuit boards with all point to point hardwired components…



« Last Edit: 1 Jun 2025, 02:17 am by OSIB16 »

OSIB16

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Re: CANON S-50 SPEAKERS (SUPERCHARGED MODIFICATIONS)
« Reply #3 on: 31 May 2025, 08:19 pm »









OSIB16

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Re: CANON S-50 SPEAKERS (SUPERCHARGED MODIFICATIONS)
« Reply #4 on: 31 May 2025, 08:22 pm »







OSIB16

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Re: CANON S-50 SPEAKERS (SUPERCHARGED MODIFICATIONS)
« Reply #5 on: 31 May 2025, 08:23 pm »
Grilles have been permanently removed…


OSIB16

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Re: CANON S-50 SPEAKERS (SUPERCHARGED MODIFICATIONS)
« Reply #6 on: 31 May 2025, 08:36 pm »
Repainted the domes and bases in a granite finish black paint…






toocool4

Re: CANON S-50 SPEAKERS (SUPERCHARGED MODIFICATIONS)
« Reply #7 on: 31 May 2025, 08:48 pm »
Nice, remember when those came out.  :thumb:

OSIB16

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Re: CANON S-50 SPEAKERS (SUPERCHARGED MODIFICATIONS)
« Reply #8 on: 31 May 2025, 08:54 pm »
Nice, remember when those came out.  :thumb:
All time classics, without a doubt. Here are some old Hi-Fi Choice reviews I found on the web…




OSIB16

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Re: CANON S-50 SPEAKERS (SUPERCHARGED MODIFICATIONS)
« Reply #9 on: 31 May 2025, 08:56 pm »





toocool4

Re: CANON S-50 SPEAKERS (SUPERCHARGED MODIFICATIONS)
« Reply #10 on: 31 May 2025, 08:59 pm »
Nice, did not know about the S-30, I think I remember the S-75.

OSIB16

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Re: CANON S-50 SPEAKERS (SUPERCHARGED MODIFICATIONS)
« Reply #11 on: 31 May 2025, 09:03 pm »
Nice, did not know about the S-30, I think I remember the S-75.

Yeah the S-30 came out a few years after the S-50. However the S-50 were larger and more substantial with more metal parts, even though the S-30 had improvements to the structure. However, I’ve fixed these issues on my speakers.