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  1. Home
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Sony ULT TOWER 9AC vs JBL PartyBox 720

Which Speaker Is Better?

    Top
    Main Differences
    Design
      PicturesStylePortabilityBuild QualityControlsIn The Box
    Sound
      Frequency Response AccuracyRaw Frequency ResponseSoundstageDynamics
    Active Features
      BatteryVoice AssistantApp
    Connectivity
      WiredBluetoothWi-Fi
    Comments

Products

Sony ULT TOWER 9AC
JBL PartyBox 720

Tested using Methodology v0.8

Updated Feb 20, 2026 02:24 PM

SEE PRICE
BestBuy.com

Tested using Methodology v0.8

Updated Feb 24, 2026 09:56 PM

SEE PRICE
Amazon.com
Sony ULT TOWER 9AC Picture

Track

JBL PartyBox 720 Picture

Track

Bluetooth
Yes
Wi-Fi
No
Speakerphone
No
Voice Assistant
No
Battery Powered
No
Bluetooth
Yes
Wi-Fi
No
Speakerphone
No
Voice Assistant
No
Battery Powered
Yes
  1. Recommended in 1 article:
  2. Parties
  1. Recommended in 3 articles:
  2. Loud
  3. Bluetooth For Sound
  4. Bluetooth For Bass

Our Verdict

Sony ULT TOWER 9AC

JBL PartyBox 720

The Sony ULT TOWER 9AC is a less portable party speaker alternative to the JBL PartyBox 720. As the name implies, the Sony only runs off AC power, which limits its usage to indoor locations and outdoor locations that can be reached with a power cord. Looking past this, there still aren't many reasons to favor the Sony. It has a similar top volume to the JBL, with worse directivity and a less balanced sound that cranks the bass range for a boomy sound. Both are solid options for your next karaoke event, but the JBL has a bit more versatility for outside use. 

0 

Variants

  • ULT TOWER 9 (Black)
  • ULT TOWER 9AC (Black)
  • PartyBox 720 (Black)

Review

See Sony ULT TOWER 9AC Review
See JBL PartyBox 720 Review
4 
9 

Check Price

Black
ULT TOWER 9AC
SEE PRICE
Sony
Black
PartyBox 720
SEE PRICE
Amazon.com
Black
ULT TOWER 9
SEE PRICE
BestBuy.com
Black
PartyBox 720
SEE PRICE
BestBuy.com
 
Black
PartyBox 720
SEE PRICE
B&H
 
Black
PartyBox 720
SEE PRICE
Walmart.com
 
Black
PartyBox 720
SEARCH
JBL

Main Differences for
Music

Threshold 

0.10

Music 
 

0.0
0.0
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Full Comparison

Design

Style  

Style Photo  

Sony ULT TOWER 9AC Style Photo Sample

SAMPLE

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for pictures & test results

JBL PartyBox 720 Style Photo Sample

SAMPLE

JOIN NOW

for pictures & test results

RGB Lights  

Locked
Locked
Show Text 

Portability 
 

N/A
N/A

Dimensions Photo  

Sony ULT TOWER 9AC Dimensions Photo Sample

SAMPLE

JOIN NOW

for pictures & test results

JBL PartyBox 720 Dimensions Photo Sample

SAMPLE

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for pictures & test results

Volume 
 

Lock in³ (Lock cm³)
Lock in³ (Lock cm³)

Weight 
 

Lock lbs (Lock kg)
Lock lbs (Lock kg)

Power Source 
 

Locked
Locked

One-Hand Carry 
 

Locked
Locked
Show Text 

Build Quality 
 

N/A
N/A

Build Quality Photo  

Sony ULT TOWER 9AC Build Quality Photo Sample

SAMPLE

JOIN NOW

for pictures & test results

JBL PartyBox 720 Build Quality Photo Sample

SAMPLE

JOIN NOW

for pictures & test results

Material Quality 
 

Locked
Locked

Water Resistance 
 

Locked
Locked

Dust Resistance 
 

Locked
Locked

Impact Resistance 
 

Locked
Locked

Floats In Water 
 

Locked
Locked
Show Text 

Controls 
 

N/A
N/A

Controls Photo  

Sony ULT TOWER 9AC Controls Photo Sample

SAMPLE

JOIN NOW

for pictures & test results

JBL PartyBox 720 Controls Photo Sample

SAMPLE

JOIN NOW

for pictures & test results

Controls Photo 2  

Sony ULT TOWER 9AC Controls Photo 2 Sample

SAMPLE

JOIN NOW

for pictures & test results

JBL PartyBox 720 Controls Photo 2 Sample

SAMPLE

JOIN NOW

for pictures & test results

Ease Of Use 
 

Locked
Locked

Feedback 
 

Locked
Locked

Music Play/Pause 
 

Locked
Locked

Call Answer/End 
 

Locked
Locked

Volume Up/Down 
 

Locked
Locked

Track Next/Previous 
 

Locked
Locked

Microphone On/Off 
 

Locked
Locked

Additional Controls 
 

Locked
Locked
Show Text 

In The Box 
 

In The Box Photo  

Sony ULT TOWER 9AC In The Box Photo Sample

SAMPLE

JOIN NOW

for pictures & test results

JBL PartyBox 720 In The Box Photo Sample

SAMPLE

JOIN NOW

for pictures & test results

Show Text 
Sound

Frequency Response Accuracy 
 

N/A
N/A

Frequency Response Graph  

Sony ULT TOWER 9AC Frequency Response Graph Sample

SAMPLE

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for pictures & test results

JBL PartyBox 720 Frequency Response Graph Sample

SAMPLE

JOIN NOW

for pictures & test results

Slope 
 

Lock
Lock

Std. Err. 
 

Lock dB
Lock dB

Low-Frequency Extension 
 

Lock Hz
Lock Hz

High-Frequency Extension 
 

Lock kHz
Lock kHz
Show Text 

Raw Frequency Response 
 

Raw Frequency Response Graph  

Sony ULT TOWER 9AC Raw Frequency Response Graph Sample

SAMPLE

JOIN NOW

for pictures & test results

JBL PartyBox 720 Raw Frequency Response Graph Sample

SAMPLE

JOIN NOW

for pictures & test results

Binaural Recording @ 1m 
 

JOIN NOW
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Binaural Recording @ 2m 
 

JOIN NOW
JOIN NOW

Soundstage 
 

N/A
N/A

Directivity Graph  

Sony ULT TOWER 9AC Directivity Graph Sample

SAMPLE

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for pictures & test results

JBL PartyBox 720 Directivity Graph Sample

SAMPLE

JOIN NOW

for pictures & test results

Directivity Index 
 

Lock dB
Lock dB

Stereo 
 

Locked
Locked
Show Text 

Dynamics 
 

N/A
N/A

Dynamic Range Compression  

Sony ULT TOWER 9AC Dynamic Range Compression Sample

SAMPLE

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for pictures & test results

JBL PartyBox 720 Dynamic Range Compression Sample

SAMPLE

JOIN NOW

for pictures & test results

SPL @ Max Volume 
 

Lock dB SPL
Lock dB SPL

DRC @ Max Volume 
 

Lock dB
Lock dB
Show Text 
Active Features

Battery 
 

N/A
N/A

Battery Life 
 

N/A
Lock hrs

Charge Time 
 

N/A
Lock hrs

Power Saving 
 

Locked
Locked

Charging Port 
 

Locked
Locked

Battery Powered 
 

Locked
Locked
Show Text 

Voice Assistant 
 

N/A
N/A

Alexa 
 

Locked
Locked

Google Assistant 
 

Locked
Locked

Speakerphone 
 

Locked
Locked

Siri 
 

Locked
Locked

Voice Assistant 
 

Locked
Locked

Voice Activation 
 

Locked
Locked

Microphone Mute 
 

Locked
Locked

Far-Field Performance 
 

Locked
Locked

Ambient Noise Performance 
 

Locked
Locked

App 
 

N/A
N/A

App Picture  

Sony ULT TOWER 9AC App Picture Sample

SAMPLE

JOIN NOW

for pictures & test results

JBL PartyBox 720 App Picture Sample

SAMPLE

JOIN NOW

for pictures & test results

App Name 
 

Locked
Locked

iOS 
 

Locked
Locked

Android 
 

Locked
Locked

EQ 
 

Locked
Locked

Stereo Pair Mode 
 

Locked
Locked

Party Mode 
 

Locked
Locked

Multi-Room 
 

Locked
Locked
Show Text 
Connectivity

Wired 
 

Aux Input 
 

Locked
Locked

USB Audio 
 

Locked
Locked

Other Ports 
 

Locked
Locked
Show Text 

Bluetooth 
 

N/A
N/A

Bluetooth 
 

Locked
Locked

Bluetooth Version 
 

Locked
Locked

Bluetooth iOS Latency 
 

Lock ms
Lock ms

Bluetooth Android Latency 
 

Lock ms
Lock ms

Bluetooth Range 
 

Lock ft (Lock m)
Lock ft (Lock m)

Multi-Device Pairing 
 

Locked
Locked
Show Text 

Wi-Fi 
 

N/A
N/A

Wi-Fi Version 
 

Locked
Locked

Wi-Fi Frequency Band 
 

Locked
Locked

Wi-Fi 
 

Locked
Locked

Apple AirPlay 
 

Locked
Locked

AirPlay Latency 
 

N/A
N/A

Google Chromecast 
 

Locked
Locked

Chromecast Latency 
 

N/A
N/A

Check Price

Black
ULT TOWER 9AC
SEE PRICE
Sony
Black
PartyBox 720
SEE PRICE
Amazon.com
Black
ULT TOWER 9
SEE PRICE
BestBuy.com
Black
PartyBox 720
SEE PRICE
BestBuy.com
 
Black
PartyBox 720
SEE PRICE
B&H
 
Black
PartyBox 720
SEE PRICE
Walmart.com
 
Black
PartyBox 720
SEARCH
JBL
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Sony ULT TOWER 9AC

JBL PartyBox 720

Comments

  1. Comparison
 • Posted 1 month ago

Sony ULT TOWER 9AC vs JBL PartyBox 720: Main Discussion

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