Sony ULT FIELD 3 vs ULT TOWER 9AC

Which Speaker Is Better?

Products

Sony ULT FIELD 3
Sony ULT TOWER 9AC

Tested using Methodology v0.8

Updated Jun 27, 2025 12:39 PM

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Tested using Methodology v0.8

Updated Aug 14, 2025 12:58 PM

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Our Verdict

Sony ULT FIELD 3

Sony ULT TOWER 9AC

Despite belonging to the same ULT POWER SOUND line, the Sony ULT FIELD 3 and Sony ULT TOWER 9AC are made for completely different scenarios. Your needs will determine which makes more sense. The ULT FIELD 3 is much smaller and battery-powered for portable adventures and toting around with you. While it includes inputs for a mic and guitar, it's not loud enough to cut through a crowd. In contrast, the ULT TOWER 9AC needs to plug into a power source, and while it has wheels, it's comparatively very large and heavy. You get more low-end due to its size, and it reaches high volumes, plus the connectivity still includes mic and guitar inputs.

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Variants

  • ULT FIELD 3 (Black)
  • ULT FIELD 3 (Forest Gray)
  • ULT FIELD 3 (Off White)
  • ULT TOWER 9 (Black)
  • ULT TOWER 9AC (Black)

Check Price

Black
ULT FIELD 3
SEE PRICE
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Black
ULT TOWER 9AC
SEE PRICE
Amazon.com
Forest Gray
ULT FIELD 3
SEE PRICE
Amazon.com
Black
ULT TOWER 9
SEE PRICE
Amazon.com
Off White
ULT FIELD 3
SEE PRICE
Amazon.com
 

Main Differences for
Music

Threshold 

0.10

Music 

6.7
7.5

Dynamics 
 

5.3
7.6

Frequency Response Accuracy 
 

7.4
7.9

Soundstage 
 

5.8
6.3

Full Comparison

Design

Style  

Style Photo  

RGB Lights  

No
Yes
Show Text 

Portability 
 

9.0
0.0

Dimensions Photo  

Volume 
 

133 in³ (2,177 cm³)
9,730 in³ (159,438 cm³)

Weight 
 

2.5 lbs (1.1 kg)
63.3 lbs (28.7 kg)

Power Source 
 

Battery & USB
AC Only

One-Hand Carry 
 

Yes
No
Show Text 

Build Quality 
 

8.7
6.4

Build Quality Photo  

Material Quality 
 

Good
Good

Water Resistance 
 

Submersible (IPx7)
No

Dust Resistance 
 

Dust-Proof (IP6x)
Unspecified

Impact Resistance 
 

Yes (IK rating unspecified)
Unspecified

Floats In Water 
 

Yes
No
Show Text 

Controls 
 

7.8
6.9

Controls Photo  

Controls Photo 2  

Ease Of Use 
 

Good
Great

Feedback 
 

Good
Good

Music Play/Pause 
 

Yes (Physical)
Yes (Tactile)

Call Answer/End 
 

Yes (Physical)
No

Volume Up/Down 
 

Yes (Physical)
Yes (Tactile)

Track Next/Previous 
 

Yes (Physical)
Yes (Tactile)

Microphone On/Off 
 

No
No

Additional Controls 
 

Yes
Yes
Show Text 

In The Box 
 

In The Box Photo  

Show Text 
Sound

Frequency Response Accuracy 
 

7.4
7.9

Frequency Response Graph  

See details
See details

Slope 
 

-0.05
-1.26

Std. Err. 
 

1.93 dB
4.07 dB

Low-Frequency Extension 
 

53.4 Hz
29.5 Hz

High-Frequency Extension 
 

16.5 kHz
18.0 kHz
Show Text 

Raw Frequency Response 
 

Raw Frequency Response Graph  

See details
See details

Binaural Recording @ 1m 
 

Binaural Recording @ 2m 
 

Soundstage 
 

5.8
6.3

Directivity Graph  

See details
See details

Directivity Index 
 

4.22 dB
6.80 dB

Stereo 
 

No (mono)
Yes
Show Text 

Dynamics 
 

5.3
7.6

Dynamic Range Compression  

See details
See details

SPL @ Max Volume 
 

86.3 dB SPL
110.0 dB SPL

DRC @ Max Volume 
 

4.96 dB
4.69 dB
Show Text 
Active Features

Battery 
 

9.0
0.0

Battery Life 
 

14.5 hrs
N/A

Charge Time 
 

2.5 hrs
N/A

Power Saving 
 

Yes
No

Charging Port 
 

USB-C
No Battery

Battery Powered 
 

Yes
No
Show Text 

Voice Assistant 
 

5.7
0.0

Alexa 
 

No
No

Google Assistant 
 

Yes (Requires Smartphone)
No

Speakerphone 
 

Yes
No

Siri 
 

Yes (Requires Smartphone)
No

Voice Assistant 
 

Yes
No

Voice Activation 
 

No
No

Microphone Mute 
 

No
No Microphone

Far-Field Performance 
 

Excellent
No Microphone

Ambient Noise Performance 
 

Excellent
No Microphone
Show Text 

App 
 

7.9
7.9

App Picture  

App Name 
 

Sound Connect
Sound Connect

iOS 
 

Yes
Yes

Android 
 

Yes
Yes

EQ 
 

Graphic + Presets
Graphic + Presets

Stereo Pair Mode 
 

Yes
Yes

Party Mode 
 

Yes
Yes

Multi-Room 
 

No
No
Show Text 
Connectivity

Wired 
 

Aux Input 
 

No
Yes

USB Audio 
 

No
Yes

Other Ports 
 

No
Yes
Show Text 

Bluetooth 
 

8.8
8.5

Bluetooth 
 

Yes
Yes

Bluetooth Version 
 

5.2
5.3

Bluetooth iOS Latency 
 

59 ms
82 ms

Bluetooth Android Latency 
 

123 ms
146 ms

Bluetooth Range 
 

195.9 ft (59.7 m)
328.1 ft (100.0 m)

Multi-Device Pairing 
 

2 Devices
2 Devices
Show Text 

Wi-Fi 
 

0.0
0.0

Wi-Fi Version 
 

No Wi-Fi
No Wi-Fi

Wi-Fi Frequency Band 
 

No Wi-Fi
No Wi-Fi

Wi-Fi 
 

No
No

Apple AirPlay 
 

No
No

AirPlay Latency 
 

N/A
N/A

Google Chromecast 
 

No
No

Chromecast Latency 
 

N/A
N/A

Check Price

Black
ULT FIELD 3
SEE PRICE
Amazon.com
Black
ULT TOWER 9AC
SEE PRICE
Amazon.com
Forest Gray
ULT FIELD 3
SEE PRICE
Amazon.com
Black
ULT TOWER 9
SEE PRICE
Amazon.com
Off White
ULT FIELD 3
SEE PRICE
Amazon.com
 

Sony ULT FIELD 3

Sony ULT TOWER 9AC

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