When using my current vizio 5.1 soundbar, i hear crackling/pops/stutters from the wireless sub+speakers. will i face the same issue with this system?

I've been having the same issue with my Nakamichi 9.2 not the one with E-Arc. I've upgraded my speaker wires from the factory ones. I'm using 4k and a 8k HDMI cables gold plated. I've even had my sound bar swapped out to an updated one with vents in the area of the HDMI ports. Because they thought it may have been heat related. I'm still having that issue with all that being done. The dedicated frequency may help some. It was explained to me by the head Nakamichi ninja (lol). If you live in an apartment building you will experience interference because of all of the residents Internet signals running throughout the building. So after all of upgrades and the replacement sound bar, I still experience this issue from time to time. So if you're living in an apartment building expect to have this issue...

How is each speaker powered?

The powered subs plug into wall outlets and the speakers plug into the subs. There are wires going from each subwoofer to 2 speakers.

I have the ultra 9.2 sse, is it worth upgrading to the ultra 9.2 earc model?

Besides eARC and aptX HD, the Shockwafe Ultra 9.2 eARC system is fully upgraded: Software + all speaker drivers + amplifiers. The surround, bass and theater performance is unmatched by any sound system by a wide margin. See full comparison of Shockwafe models here: https://www.nakamichi-usa.com/shockwafe-soundbar-series-specifications

ASIN	B08Z37YTVG
Age Range Description	Adult
Antenna Location	For Indoor Use, For gaming consoles, For surround sound systems
Audio Driver Size	10 Inches
Audio Driver Type	Dynamic Driver
Audio Output Mode	Surround
Audio output mode	Surround
Box Contents	Soundbar, 4 Rear Speakers, 2 Subwoofers, Remote Control, Wall Mount
Brand	Nakamichi
Brand Name	Nakamichi
Colour	Black
Compatible Devices	Desktop, Gaming Console, Home Theater, Laptop, MP3 Player, Smartphone, Tablet, Television
Connectivity Protocol	Bluetooth
Connectivity technology	Bluetooth, Wi-Fi
Control Method	Remote
Controller Type	Remote Control
Customer Package Type	FFP file
Customer Reviews	4.5 out of 5 stars 464 Reviews
Enclosure Material	Plastic, Paper/Polypropylene, Silk, Plastic/Metal
Frequency Response	20 Hz
Frequency response	20 Hz
Is Waterproof	False
Item Dimensions D x W x H	7.6D x 115.6W x 9.1H centimetres
Item Weight	36.29 kg
Manufacturer	Nakamichi
Maximum Speaker Output Power (in watts)	1300 Watts
Model Name	Shockwafe Ultra 9.2.4
Model Number	Shockwafe Ultra 9.2.4 SSE Max
Mounting Type	Wall Mount
Mounting type	Wall Mount
Network Connectivity Technology	Bluetooth, Wi-Fi
Number Of Circuits	2
Number of Audio Channels	9.2.4
Number of Batteries	2 AAA batteries required. (included)
Number of Items	1
Power Source	Corded Electric
Product Features	Wireless
Speaker Size	10 Inches
Speaker Type	Subwoofer
Speaker maximum output power	1300 Watts
Specific Uses For Product	Home Entertainment
Subwoofer Connectivity Technology	Wireless
Subwoofer Speaker Diameter	10 Inches
Tweeter Diameter	1 Inches
Warranty Type	Limited
Water Resistance Level	Not Water Resistant
Wireless Technology Type	Bluetooth, Wi-Fi
Woofer Driver Diameter	10 Inches

Nakamichi Shockwafe Ultra 9.2.4 Channel Dolby Atmos/DTS:X Soundbar with Dual 10" Subwoofers (Wireless), 4 Rear Surround Effects Speakers, eARC and SSE Max Technology (2022)

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