QUAD 9L Active Speaker Repair the other one - It's not the same!!

QUAD 9L Active Speaker Repair the other one - It's not the same!!
Ok, I was not expecting to find the other Quad 9L active speaker dead when I turned on my PC today, I was really hoping not to have a project this evening, however, it was interesting to have a little dig around inside it. I am surprised on how much they actually stuff in there, and its a lot of discrete components.
Specifications:
Quad 9L Active self-powered desktop speaker with built-in USB DAC
Driver complement: One 1-inch fabric dome tweeter and one 3.94-inch Kevlar mid-bass driver ?
Frequency response: 50Hz - 21 kHz, ± 3dB
Maximum output (short-term peak SPL): 105 dB
Internal amplifier power: 60 watts/speaker
Sensitivity: 0.775 V (0dBu)
Input impedance: 10k Ohms
Dimensions (HxWxD): 9.76” x 5.98” x 9.33”
Weight: 22.93 lb.
The earlier video:
Quad 9L speaker repair: • Quad 9L Active Speaker...
Other hifi videos:
Akai Amplifier Repair: • Akai AA-5800 Amplifier...
Quad 33 Pre Amp Restoration and Upgrade: • Quad 33 Pre Amp Restor...
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Thanks you lovely people, and keep on tinkering!

[@custardo]

That little speaker is veritable clown car of electronics

[@backofficeshow]

I have some cheapo equivalent for around £75. The amp etc is only in one speaker and they weigh about a quarter of this, actually the AC adaptor is probably just as heavy. In contrast these Quad ones are like a battleship 🤣
I'm guessing this resistor and capacitor are the main weak point. However as these speakers are so rare, I suppose they just service them rather than making a new revision. They rarely come up on the market

[@backofficeshow]

I have some cheapo equivalent for around £75. The amp etc is only in one speaker and they weigh about a quarter of this, actually the AC adaptor is probably just as heavy. In contrast these Quad ones are like a battleship 🤣
I'm guessing this resistor and capacitor are the main weak point. However as these speakers are so rare, I suppose they just service them rather than making a new revision. They rarely come up on the market

[@trentconner3019]

😕 "promosm"