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onn 20 in Bluetooth Soundbar vs Gcz 2.1 Soundbar with Subwoofer

The Gcz is the better pick for movie and gaming setups. It has a separate wired subwoofer, 240 W peak output, HDMI-ARC and five drivers, so it produces deeper bass and a wider soundstage than the onn bar. The onn is the smaller, lighter and simpler option, with Bluetooth streaming, optical, USB and AUX inputs, LED lighting and a built-in subwoofer in a 3.1 lb bar. Owners rate the onn higher (4.4 from about 9,000 ratings versus 3.7 from 1,100), so the Gcz wins on hardware while the onn wins on owner satisfaction and ease of placement.

  • Choose the onn 20 in soundbar if you want a compact, light bar with Bluetooth streaming, LED lighting and a built-in subwoofer that fits a small TV or bedroom setup.
  • Choose the Gcz 2.1 soundbar if you want a separate subwoofer, HDMI-ARC and more power for movies, gaming and a larger room.

Prices

  • onn 20 in Bluetooth Soundbar: $30.00 at Whatnot (checked today)
  • Gcz 2.1 Soundbar with Subwoofer: $99.99 at Walmart (last seen Nov 9)
  • Difference: the onn 20 in Bluetooth Soundbar is $69.99 cheaper than the Gcz 2.1 Soundbar with Subwoofer at the latest prices (Nov 9 and Nov 10)
onn
onn 20 in Bluetooth 2.1 Channel Soundbar with Multi-Color LED Lighting

onn 20 in Bluetooth Soundbar

onn 20 in Bluetooth 2.1 Channel Soundbar with Multi-Color LED Lighting

4.4(8,979 ratings)
$30.00at WhatnotChecked 6 h ago
See all prices and details
Visit Whatnot
Pros
  • Compact 20 in bar that fits small shelves and wall mounts
  • Built-in subwoofer adds bass without a second box
  • Bluetooth streaming plus HDMI, optical, USB and AUX inputs
  • Multi-color LED lighting with 6 modes
  • High owner rating across thousands of reviews
Cons
  • 30 W RMS limits volume in large rooms
  • 1 in drivers give modest bass next to a real subwoofer
  • No HDMI-ARC listed, so TV control is limited
  • Lighting may distract in a dark movie room
Gcz
Gcz Soundbar with Subwoofer 2.1 CH

Gcz 2.1 Soundbar with Subwoofer

Gcz Soundbar with Subwoofer 2.1 CH

3.7(1,100 ratings)
$99.99at WalmartChecked Nov 9
See all prices and details
Visit Walmart
Pros
  • Separate subwoofer delivers noticeably deeper bass
  • 240 W max output fills a larger room
  • HDMI-ARC lets the TV remote control volume
  • Five drivers spread sound wider for movies and games
  • Smart DSP sound modes for different content
Cons
  • Lower owner rating (3.7) than the onn
  • 13.4 lb with a wired subwoofer to place and cable
  • No LED lighting or built-in sub for tight spaces
  • Remote needs batteries

What separates them

onn 20 in Bluetooth SoundbarGcz 2.1 Soundbar with Subwoofer
SubwooferBuilt-in subwoofer inside the barSeparate wired subwoofer unit
Power30 W RMS, 120 W max95 W nominal, 240 W max
Drivers2 internal speakers, 1 in driver sizeFive sound units, four full-range speakers plus bass woofer
InputsHDMI, optical, USB, AUX, 3.5 mm, BluetoothHDMI-ARC, SPDIF, coaxial, AUX, 3.5 mm, Bluetooth
Size and weight20 in wide, 3.1 lb, wall-mountable2.36 in bar plus separate sub, 13.4 lb total
LightingMulti-color LED with 6 light modesNo lighting
Owner ratings4.4 out of 5 from about 9,000 ratings3.7 out of 5 from about 1,100 ratings
SetupSingle bar, no separate sub to placeNeeds space and a cable run for the subwoofer

Price history

$99.99$27.00
Oct 31Nov 10
  • onn 20 in Bluetooth Soundbar: lowest $27.00 on Nov 10 at Mercari.
  • Gcz 2.1 Soundbar with Subwoofer: lowest $74.95 on Nov 1 at Walmart; $99.99 on Nov 9.

Prices at every store

onn 20 in Bluetooth Soundbar

  • MercariNew

    In stock

    $27.00+ $9.99 shippingChecked 13 h ago
    Visit Mercari
  • WalmartNew

    In stock

    $39.88Free shippingChecked 2 h ago
    Visit Walmart
  • WhatnotNew

    Availability unknown

    $30.00Checked 6 h ago
    Visit Whatnot
  • PayMore BrookfieldNew

    Availability unknown

    $36.99Checked 6 h ago
    Visit PayMore Brookfield
All 8 stores and price history →

Gcz 2.1 Soundbar with Subwoofer

  • WalmartNew

    In stockSold by GCZ ETS Store

    $99.99Free shippingChecked Nov 9
    Visit Walmart
Prices and history →

Specs compared

Speconn 20 in Bluetooth SoundbarGcz 2.1 Soundbar with Subwoofer
Width3.2 in wide2.36 in (Sound Bar)
colorBlack—
sizeOne Size—
RMS Power30 W—
ConnectivityUSB, Wireless, Bluetooth, Wired, HDMI—
Audio InputsDigital Optical TOSLINK, USB, AUX, HDMI, 3.5 mm…—
System Configuration2.0 Channel—
Surround Sound FormatsDolby Atmos, Dolby Digital—
Driver Size1 in—
Item Weight3.1 lbs—
Year Manufactured2021—
Impedance4 Ohms—
Show all 40 specsShow fewer specs
Speconn 20 in Bluetooth SoundbarGcz 2.1 Soundbar with Subwoofer
Smart Home CompatibilityAlexa, Siri, Google Assistant—
FeaturesCompact, Flicker Effect, Remote Control, Blueto…—
WirelessYes—
Configuration2.1 Channel—
Special PurposeSoundbar—
StyleWall Mount—
Max Wattage120 W—
SetYes—
Assistant SupportGoogle Assistant, Amazon Alexa—
Height

What reviewers say

onn 20 in Bluetooth Soundbar

  • 4.4 / 58,979 ratings

Owners rate it well for the money, calling it an easy upgrade over built-in TV speakers in small rooms. Complaints center on modest volume, thin bass and the light display drawing attention.

What people mention
  • Sound qualityMixedOwners say it beats TV speakers but lacks bass depth and clear dialogue at high volume.
  • SetupPraisedBuyers report quick pairing over Bluetooth and easy optical or HDMI hookup.
  • LightingMixedSome like the LED modes as ambience; others find them distracting during movies.
  • VolumeCriticisedReviewers note 30 W RMS is enough for a bedroom but strains in a large room.

Gcz 2.1 Soundbar with Subwoofer

  • 3.7 / 51,100 ratings

Ratings average 3.7 out of 5 across 1,100 reviews, so buyers are split rather than uniformly positive. The pattern is that people like the bass and the input options for the money, while a share of owners report problems that keep scores middling.

What people mention
  • BassPraisedOwners say the wired subwoofer adds real low end that TV speakers lack.
  • Surround effectCriticisedBuyers report the 3D surround mode sounds wider but not truly immersive.
  • SetupPraisedHDMI-ARC and optical make hookup quick for most people.
  • Build qualityMixed

Questions and answers

Which is better for movies?
The Gcz. Its separate subwoofer and five drivers give deeper bass and a wider front stage, and HDMI-ARC keeps it synced to the TV. The onn is fine for casual TV in a small room.
Which is better for music over Bluetooth?
Both stream over Bluetooth. The onn is easier to move and has LED lighting for a room setup. The Gcz has more power and a real subwoofer, so bass-heavy music sounds fuller.
Which lasts longer?
Neither has a published lifespan. The onn has fewer parts and no separate subwoofer cable to fail, while the Gcz's subwoofer and remote add components that can wear. Owner ratings favor the onn.
Is the Gcz worth stepping up to?
Yes if you watch movies or play games in a medium to large room and want real bass. If space is tight or you mostly listen at low volume, the onn covers it.
Do I need a separate subwoofer?
Only if you want deep bass. The onn's built-in subwoofer is enough for dialogue and light music. The Gcz's separate unit is the bigger upgrade for action scenes and games.
Will either control my TV?
The Gcz lists HDMI-ARC, so a compatible TV remote can adjust its volume. The onn lists HDMI but not ARC, so you may need its own remote.

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Buying guides that pick them

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2.52 in high
—
Battery Capacity6 mAh—
ShapeRectangular—
Compatible BrandUniversal—
Design Highlights—Separable
Bluetooth—Yes
Connectivity Technology—Wired, Bluetooth
Ports And Interfaces—SPDIF line, AUX, Coaxial 3.5mm audio jack, HDMI…
Speaker Placement—For TVs
Max Output Power—240 W
Nominal Output Power—95 W
Audio Configuration—2.1 system
Audio Highlights—With Surround Sound, 3D Surround Sound, Smart D…
Audio Channels—2.1 CH
Weight—13.4 lb
Driver Type—Full-range speakers, Bass woofer
Number Of Drivers—Five sound units, 4 full-range speakers
System Components—Subwoofer, Sound Bar
Subwoofer Type—Wired
Some find the bar and remote plasticky for the price; others call it fine for a budget unit.
Best soundbars for TV and movies
  • Best sound bars for smart TVs