Hi everyone,

I’m reaching out to the community for help diagnosing several problems in my Meridian system. I’ve listed them in detail below. Any advice or suggestions would be greatly appreciated.

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Problem #1 – Meridian DSW.2 Subwoofer Accidentally Plugged into 220V

I accidentally plugged my Meridian DSW.2 (configured for 110V) into a 220V outlet for about 10 seconds. I immediately unplugged it after detecting a faint burnt smell. I opened the unit and rewired the internal transformer by separating the center tap wires to adapt it for 220V.

The transformer now outputs clean and stable 48V, and shows no physical or thermal damage—no signs of burning, no discoloration, no smell. I believe the transformer is working correctly and can be ruled out as the source of the problem.

I replaced the fuse, and now the main power board shows several green LEDs lit and one orange/yellow LED, indicating power is reaching the system. However, the main front power indicator LED remains off, and the subwoofer does not function.

During inspection, I noticed one potentially damaged component: a ferrite-core inductor marked “221” looked mechanically stressed, possibly from accidental contact while opening the unit. Its legs are still soldered in place and not broken, but I’m unsure if it could be the root of the problem.

Could this inductor be the cause of the issue? If so, how can I test or confirm that? If not, what should I investigate next?

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Problem #2 – Intermittent Distortion from DSP3300 Center Speaker

My DSP3300 center speaker occasionally emits a distorted or raspy sound, especially during calibration. Sometimes, even when the system is idle and no audio is playing, I notice small audio “pops” or brief output from the speaker.

Once, the DSP3300 was completely distorted and would not play clean audio at all. Power-cycling did not help. I opened the unit and found no physical damage or bulging capacitors. After letting it fully discharge and reconnecting it, the speaker started working again—but the occasional issue still happens.

I suspect the unshielded SpeakerLink cable might be part of the problem, but I’m not certain if the issue is signal-related, power-related, or internal to the speaker.

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Problem #3 – G61R Requires Multiple Restarts to Output Audio

My Meridian G61R occasionally fails to output sound after powering on. I hear a soft relay click when turning it on, and all four connected M6 speakers light up white, indicating they are powered and linked—but no audio plays.

Only after switching the G61R off and on a few times does it begin outputting sound normally. Once it starts working, it performs without issues. I’m wondering whether this is a failing relay, a firmware problem, or some other startup-related fault.

Any recommendations for diagnosing or resolving this would be appreciated.

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Problem #4 – No 5.1 Passthrough from TV to Meridian via Optical (TOSLink)

In my setup, I connect a MacBook Pro to the TV via HDMI, and then route audio from the TV to the Meridian G61R through the TV’s optical output (TOSLink). When running speaker tests from macOS, each speaker receives the correct signal and channel assignment, so the TV and Meridian appear to handle channel mapping correctly.

However, when watching movies via media players that support passthrough (bitstream output), I only get stereo sound. Despite the 5.1 content and correct player settings, the TV seems to output only 2-channel audio over TOSLink.

I’m not sure if the issue is a limitation of the TV’s optical output, incorrect passthrough settings, or a compatibility issue between the TV and Meridian. Any advice on achieving full 5.1 output over optical in this setup would be great.

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Thank you in advance for any help. I’m happy to provide additional details, photos, or test results if needed.

Best regards,
Kamnran Aydinov