SONAB CSW 9 thumping

[thehandofdawn]

Hi folks, newbie to the forum and the hobby here, hoping someone can help me.

I am getting single, short bassy thumps from my subwoofer when:

- I pause films or songs on my TV
- when I hit play again
- when I switch audio settings on my receiver e.g. 'Enhancer' or 'Straight'

The thumps happen *often* in the aforementioned scenarios, but not every single time.

These thumps, however, do occur with 100% certainty when the audio drops out on the Disney+ app (apparently drop outs are a common and frustrating issue for Disney+ users). Oftentimes, when I start a movie or a show on Disney+, the audio will cut out twice in the first few seconds before stabilising, and the woofer will thump both times.

The sound on the woofer is fantastic otherwise, I just live in anticipation of the next of those jarring, obnoxious thumps. It rather ruins my viewing and listening experience.

I do not recall this being as much of an issue (or an issue at all) a few months ago when the TV was hooked up to the receiver via a simple aux cord. If memory serves, the thumping began around the time I switched to an HDMI ARC connection. Is that a possible cause, or is it far more likely just a coincidence? i.e. did I just so happen to switch from aux cable to HDMI around the time a component in the receiver or woofer failed of its own accord.

I do not currently have access to another receiver or another woofer to figure out where the problem lies via process of elimination. I'm just hoping this is a problem someone else here has encountered before and is able to diagnose from my description.

Any help would be greatly appreciated.

My setup:
- SONAB CSW subwoofer (wired connection)
- 2x Dali Spektor bookshelf speakers
- Yamaha RX-V577 receiver
- LG OLED CX television (connected to receiver via HDMI ARC)

I have replaced the power cable for the woofer as it looked a bit knackered. No change. Replacing the audio cable looks to be a pain as it is RCA to phoenix. I have included a photo of what the connection looks like. I bought this woofer secondhand so this is not my work. As a noob to all this, I have no idea whether this looks like a solid job or a total mess.

Thanks in advance.

 

[everettT]

Hi folks, newbie to the forum and the hobby here, hoping someone can help me.

I am getting single, short bassy thumps from my subwoofer when:

- I pause films or songs on my TV
- when I hit play again
- when I switch audio settings on my receiver e.g. 'Enhancer' or 'Straight'

The thumps happen *often* in the aforementioned scenarios, but not every single time.

These thumps, however, do occur with 100% certainty when the audio drops out on the Disney+ app (apparently drop outs are a common and frustrating issue for Disney+ users). Oftentimes, when I start a movie or a show on Disney+, the audio will cut out twice in the first few seconds before stabilising, and the woofer will thump both times.

The sound on the woofer is fantastic otherwise, I just live in anticipation of the next of those jarring, obnoxious thumps. It rather ruins my viewing and listening experience.

I do not recall this being as much of an issue (or an issue at all) a few months ago when the TV was hooked up to the receiver via a simple aux cord. If memory serves, the thumping began around the time I switched to an HDMI ARC connection. Is that a possible cause, or is it far more likely just a coincidence? i.e. did I just so happen to switch from aux cable to HDMI around the time a component in the receiver or woofer failed of its own accord.

I do not currently have access to another receiver or another woofer to figure out where the problem lies via process of elimination. I'm just hoping this is a problem someone else here has encountered before and is able to diagnose from my description.

Any help would be greatly appreciated.

My setup:
- SONAB CSW subwoofer (wired connection)
- 2x Dali Spektor bookshelf speakers
- Yamaha RX-V577 receiver
- LG OLED CX television (connected to receiver via HDMI ARC)

I have replaced the power cable for the woofer as it looked a bit knackered. No change. Replacing the audio cable looks to be a pain as it is RCA to phoenix. I have included a photo of what the connection looks like. I bought this woofer secondhand so this is not my work. As a noob to all this, I have no idea whether this looks like a solid job or a total mess.

View attachment 70783

Thanks in advance.

What amp are you using?

 

[thehandofdawn]

What amp are you using?

Just the Yamaha RX-V577 receiver

 

[isolar8001]

I have replaced the power cable for the woofer as it looked a bit knackered. No change. Replacing the audio cable looks to be a pain as it is RCA to phoenix. I have included a photo of what the connection looks like. I bought this woofer secondhand so this is not my work. As a noob to all this, I have no idea whether this looks like a solid job or a total mess.

View attachment 70783

Thanks in advance.

That looks like a 75 ohm coax tv cable going into that connector....that surely cant work well.
Do you have the other end plugged into the Yamaha sub out ?

I would bet that sub isn't meant to be used outside of its mother system.
As it is, I'm surprised it works at all...thats a speaker level input you have plugged in to.

 

[thehandofdawn]

That looks like a 75 ohm coax tv cable going into that connector....that surely cant work well.
Do you have the other end plugged into the Yamaha sub out ?

I would bet that sub isn't meant to be used outside of its mother system.
As it is, I'm surprised it works at all...thats a speaker level input you have plugged in to.

Other end plugged into the Yamaha sub out yes.

Do you think this sub and amp simply cannot work together, or that I need to change how they are connected? Any advice is much appreciated.

 

[isolar8001]

Other end plugged into the Yamaha sub out yes.

Do you think this sub and amp simply cannot work together, or that I need to change how they are connected? Any advice is much appreciated.

That's a very odd input on that sub...You would think it would be a speaker level input, but there is only one of them. Odd.
The mother unit to that system might have had that setup if you didn't use the wireless, and had a special connector for it.

From what I'm seeing that sub will never work properly outside of its mother system....this is common to these types of systems.

 

[thehandofdawn]

That's a very odd input on that sub...You would think it would be a speaker level input, but there is only one of them. Odd.
The mother unit to that system might have had that setup if you didn't use the wireless, and had a special connector for it.
I would have to search the layout a little more to tell you anything.

Regarding the wired setup, I found this within the sub's manual:

""LINE OUT: Connect to "Line in" on other System 9 speaker with balanced cable.

LINE IN: Connect from "Line Out" on CgV or other System 9 speaker with balanced cable.""

CGV refers to this thing: https://pacifichifi.com.au/product/sonab-cgv-wired-volume-master/?srsltid=AfmBOooWt1zpRulYJ79XXbIHVgHn4Rgv4V8jGtsoxb9juyICHrWfuTeF

Manual for the mother system:

SONAB SOUND & SOCIETY SYSTEM 9 INSTRUCTION MANUAL Pdf Download

View and Download Sonab Sound & Society System 9 instruction manual online. Sound & Society System 9 speaker system pdf manual download.

www.manualslib.com

Manual for the sub itself:

SONAB CSW SYSTEM 9 USER MANUAL Pdf Download

View and Download Sonab CSW System 9 user manual online. Powered and Wireless Subwoofer. CSW System 9 subwoofer pdf manual download. Also for: Csw subwoofer, System9 csw.

www.manualslib.com

Again, any help is hugely appreciated. I am completely out of my depth here

 

[isolar8001]

Regarding the wired setup, I found this within the sub's manual:

""LINE OUT: Connect to "Line in" on other System 9 speaker with balanced cable.

LINE IN: Connect from "Line Out" on CgV or other System 9 speaker with balanced cable.""

CGV refers to this thing: https://pacifichifi.com.au/product/sonab-cgv-wired-volume-master/?srsltid=AfmBOooWt1zpRulYJ79XXbIHVgHn4Rgv4V8jGtsoxb9juyICHrWfuTeF

Manual for the mother system:

SONAB SOUND & SOCIETY SYSTEM 9 INSTRUCTION MANUAL Pdf Download

View and Download Sonab Sound & Society System 9 instruction manual online. Sound & Society System 9 speaker system pdf manual download.

www.manualslib.com

Manual for the sub itself:

SONAB CSW SYSTEM 9 USER MANUAL Pdf Download

View and Download Sonab CSW System 9 user manual online. Powered and Wireless Subwoofer. CSW System 9 subwoofer pdf manual download. Also for: Csw subwoofer, System9 csw.

www.manualslib.com

Again, any help is hugely appreciated. I am completely out of my depth here

That just further proves that all those components are all designed to work with each other and nothing else.
A glorified soundbar type system, where if one part is gone...the rest is useless.

If you are actually getting it to work at all, consider that a win.
Get a real sub when you can.