WiiM Sub Pro is Now Available on Amazon US

[harkpabst]

Peak wattage and RMS wattages are different in audio lingo. It is routine to report RMS wattages for sub-woofers. Without knowing if it it Peak, Peak to Peak or RMS it is hard to compare the power of different amplifiers.


For example the SVS SB-1000 Pro has this spec

"325 watts RMS continuous power (820+ watts peak dynamic power)"

That is what I would like to compare.

Bottom line: You cannot tell the RMS power from a given peak power value. That's what I said.

Also, there's no such thing as peak to peak power. What should that be? You can specify peak to peak voltage (or current, if you need to, but with pretty much all Hi-Fi amplifiers being voltage sources this is less common). That's just two ways of describing the same thing.

We can easily convert RMS voltage into peak voltage or peak to peak voltage (still assuming sinusoidal signals), but not power measurements.

@RyanWithWiiM, can you please confirm that the WiiM Sub Pro is really a wireless subwoofer, not a 15" display?

 

[RyanWithWiiM]

Bottom line: You cannot tell the RMS power from a given peak power value. That's what I said.

Also, there's no such thing as peak to peak power. What should that be? You can specify peak to peak voltage (or current, if you need to, but with pretty much all Hi-Fi amplifiers being voltage sources this is less common). That's just two ways describing the same thing.

We can easily convert RMS voltage into peak voltage or peak to peak voltage (still assuming sinusoidal signals), but not power measurements.

@RyanWithWiiM, can you please confirm that the WiiM Sub Pro is really a wireless subwoofer, not a 15" display?

"¿Por qué no los dos?"

 

[RyanWithWiiM]

And for those who really want another option, here's a third pic

 

[Mr Ee]

Shudder... do the people taking the pictures never look at them critically?
They are ok for snaps, but for marketing...?

 

[harkpabst]

I still like the first picture best.

 

[dtc]

Bottom line: You cannot tell the RMS power from a given peak power value. That's what I said.

Also, there's no such thing as peak to peak power. What should that be? You can specify peak to peak voltage (or current, if you need to, but with pretty much all Hi-Fi amplifiers being voltage sources this is less common). That's just two ways of describing the same thing.

We can easily convert RMS voltage into peak voltage or peak to peak voltage (still assuming sinusoidal signals), but not power measurements.

@RyanWithWiiM, can you please confirm that the WiiM Sub Pro is really a wireless subwoofer, not a 15" display?

Well, these are old definitions that have been used for decades. You may not like the definitions, but they are very well established in the audio community. Most quality receiver, power amp or subwoofer specs include rms power. If rms is not in the spec, then there is always suspicion that the company is trying to inflate the true power. Reporting rms does away with that uncertainty. I doubt that will change any time soon. For people who have been in audio for a long time, specifying rms matters.

Power should be reported for a given impedance but that information is not always included, at which point it is assumed to be 8 ohms. Many manufactures, including Wiim, report power at 8 ohms and a 4 ohms.

I do agree that RMS is not necessarily Continuous. I believe that formula was introduced to approximate Continuous without having to do long and sometimes destructive testing to determine exactly when a unit could not maintain that power. But, it has become a well established term in the audio world.

Anyway, audio convention on power is well established. I doubt it will change.

 

[harkpabst]

Anyway, audio convention on power is well established. I doubt it will change.

I didn't ask for it to change. I just pointed out the facts.

When power figures are given for speakers with built-in amplifiers (like subwoofers) they are not related to any fictitious nominal impedance of course, but to the actual load.

 

[Burnside]

It’s been asked whether wirelessly connecting this to a WiiM device is like linking WiiMs where their resolution drops to 16/48. I would suspect that’s not the case but I’d appreciate clarification. Thx

@RyanWithWiiM , @WiiM Support , @WiiM Team

 

[WiiM Support]

It’s been asked whether wirelessly connecting this to a WiiM device is like linking WiiMs where their resolution drops to 16/48. I would suspect that’s not the case but I’d appreciate clarification. Thx

@RyanWithWiiM , @WiiM Support , @WiiM Team

Hi Burnside,

Yes, your assumption is correct—the resolution will remain unchanged and will not be reduced to 16-bit/48kHz. Thanks for checking!

 

[Wiimer]

Has someone already posted this FAQ?

How to Set Up Your WiiM Sub Pro

TABLE OF CONTENTS Connection Mode What You'll Need Step-by-Step Setup Guide 1. Unbox the WiiM Sub Pro 2. Place the WiiM Sub Pro Properly 3. Power on the WiiM Sub Pro 4. Download the WiiM Home App 5. Set Up the WiiM Sub Pro through the Wi...

faq.wiimhome.com

 

[Wiimer]

Has someone already posted this FAQ?

How to Set Up Your WiiM Sub Pro

TABLE OF CONTENTS Connection Mode What You'll Need Step-by-Step Setup Guide 1. Unbox the WiiM Sub Pro 2. Place the WiiM Sub Pro Properly 3. Power on the WiiM Sub Pro 4. Download the WiiM Home App 5. Set Up the WiiM Sub Pro through the Wi...

faq.wiimhome.com

From this it appears that all crossover and other settings are made on the main WiiM device side. If that is the case, how are low-pass etc. settings made when the Sub Pro is wired to a non-WiiM amplifier?

Is it just that the manual is not yet complete, and can the crossover etc. actually be changed on the Sub pro settings screen?

 

[Wiimer]

@WiiM Team, @WiiM Support,

Again a simple question.

Can the Sub pro adjust the frequency of the low pass filter on its own?

How does the Sub pro work if the subwoofer output of the amplifier does not have an adjustable low-pass frequency?

 

[WiiM Team]

@WiiM Team, @WiiM Support,

Again a simple question.

Can the Sub pro adjust the frequency of the low pass filter on its own?

How does the Sub pro work if the subwoofer output of the amplifier does not have an adjustable low-pass frequency?

Hi @Wiimer ,

Currently, we do not offer the option to adjust the low pass filter. On the Sub Pro, we have built-in low pass filter parameters. In the future, we plan to make this setting available to advanced users.

 

[Wiimer]

Hi @Wiimer ,

Currently, we do not offer the option to adjust the low pass filter. On the Sub Pro, we have built-in low pass filter parameters. In the future, we plan to make this setting available to advanced users.

Thank you for the clarification.
Perhaps this will not be an problem for most users, but for some of customers who are considering buying, I think this is information they should know in advance.

 

[cooky560]

It looks like a great product, but I do wish that brands would stop adding "pro" to every product in existence. It's not pro if it's being used in the home to listen to pop music.

 

[EddNog]

Honestly, it’s not pro if the crossover point (low-pass filter) isn’t adjustable. It’s just a toy compared to proper subwoofers, hate to say it. This is, in my opinion, the first real dud I’ve seen from the LinkPlay team, even for the price.

-Ed

 

[mikerick39]

You have a mistake on your “Works With Everything” banner on Amazon. The universal compatibility section mentions “RCA Sub Out”. It should be “RCA Sub In”, like the description says just below this banner.

Great job with this product…is there a road map including larger sizes and higher wattages?

 

[RyanWithWiiM]

You have a mistake on your “Works With Everything” banner on Amazon. The universal compatibility section mentions “RCA Sub Out”. It should be “RCA Sub In”, like the description says just below this banner.

Great job with this product…is there a road map including larger sizes and higher wattages?

Thanks! I've passed it on.