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  1. Home
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JBL PartyBox 1000 vs Marshall Bromley 750

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

JBL PartyBox 1000
Marshall Bromley 750 
early access

Tested using Methodology v0.8

Updated Aug 14, 2025 12:58 PM

SEE PRICE
Amazon.com

Tested using Methodology v0.8

Updated Jan 23, 2026 04:39 PM

This review is in Early access

SEE PRICE
BestBuy.com
JBL PartyBox 1000 Picture
Marshall Bromley 750 Picture
Bluetooth
Yes
Wi-Fi
No
Speakerphone
No
Voice Assistant
No
Battery Powered
No
Bluetooth
Locked
Wi-Fi
Locked
Speakerphone
Locked
Voice Assistant
Locked
Battery Powered
Locked
  1. Recommended in 2 articles:
  2. Loud
  3. Karaoke

Our Verdict

JBL PartyBox 1000

Marshall Bromley 750

Full comparison details regarding individual product score sets can be found in the section below
0 

Variants

  • PartyBox 1000 (Black)
  • Bromley 750 (Black/Brass)

Review

See JBL PartyBox 1000 Review
See Marshall Bromley 750 Review
11 
2 

Check Price

Black
PartyBox 1000
SEE PRICE
Amazon.com
Black/Brass
Bromley 750
SEE PRICE
BestBuy.com
Black
PartyBox 1000
SEARCH
B&H
Black/Brass
Bromley 750
SEE PRICE
B&H
Black
PartyBox 1000
SEARCH
BestBuy.com
Black/Brass
Bromley 750
SEE PRICE
Amazon.com
Black
PartyBox 1000
SEARCH
JBL
Black/Brass
Bromley 750
SEARCH
Marshall
Black
PartyBox 1000
SEARCH
Walmart.com
Black/Brass
Bromley 750
SEARCH
Walmart.com

Main Differences for
Music

Threshold 

0.10

Music 
 

7.3
0.0
No major differences between these speakers for music. See full list of tests below.

Full Comparison

Design

Style  

Style Photo 
 

Compare High-Res
JBL PartyBox 1000 Style Photo
Marshall Bromley 750 Style Photo Sample

SAMPLE

GET INSIDER ACCESS

To see pictures and test results

RGB Lights  

Yes
Locked
Show Text 

Portability 
 

1.0
N/A

Dimensions Photo 
 

Compare High-Res
JBL PartyBox 1000 Dimensions Photo
Marshall Bromley 750 Dimensions Photo Sample

SAMPLE

GET INSIDER ACCESS

To see pictures and test results

Volume 
 

9,996 in³ (163,800 cm³)
Lock in³ (Lock cm³)

Weight 
 

76.9 lbs (34.9 kg)
Lock lbs (Lock kg)

Power Source 
 

AC Only
Locked

One-Hand Carry 
 

Yes
Locked
Show Text 

Build Quality 
 

6.4
N/A

Build Quality Photo 
 

Compare High-Res
JBL PartyBox 1000 Build Quality Photo
Marshall Bromley 750 Build Quality Photo Sample

SAMPLE

GET INSIDER ACCESS

To see pictures and test results

Material Quality 
 

Good
Locked

Water Resistance 
 

No
Locked

Dust Resistance 
 

No
Locked

Impact Resistance 
 

No
Locked

Floats In Water 
 

No
Locked
Show Text 

Controls 
 

7.0
N/A

Controls Photo 
 

Compare High-Res
JBL PartyBox 1000 Controls Photo
Marshall Bromley 750 Controls Photo Sample

SAMPLE

GET INSIDER ACCESS

To see pictures and test results

Controls Photo 2 
 

Compare High-Res
JBL PartyBox 1000 Controls Photo 2
Marshall Bromley 750 Controls Photo 2 Sample

SAMPLE

GET INSIDER ACCESS

To see pictures and test results

Ease Of Use 
 

Great
Locked

Feedback 
 

Great
Locked

Music Play/Pause 
 

Yes (Physical)
Locked

Call Answer/End 
 

No
Locked

Volume Up/Down 
 

Yes (Physical)
Locked

Track Next/Previous 
 

Yes (Physical)
Locked

Microphone On/Off 
 

No
Locked

Additional Controls 
 

Yes
Locked
Show Text 

In The Box 
 

In The Box Photo 
 

Compare High-Res
JBL PartyBox 1000 In The Box Photo
Marshall Bromley 750 In The Box Photo Sample

SAMPLE

GET INSIDER ACCESS

To see pictures and test results

Show Text 
Sound

Frequency Response Accuracy 
 

8.3
N/A

Frequency Response Graph  

 Preview Graph
JBL PartyBox 1000 Frequency Response Graph
Marshall Bromley 750 Frequency Response Graph Sample

SAMPLE

GET INSIDER ACCESS

To see pictures and test results

Slope 
 

0.11
Lock

Std. Err. 
 

2.57 dB
Lock dB

Low-Frequency Extension 
 

27.9 Hz
Lock Hz

High-Frequency Extension 
 

17.0 kHz
Lock kHz
Show Text 

Raw Frequency Response 
 

Raw Frequency Response Graph  

 Preview Graph
JBL PartyBox 1000 Raw Frequency Response Graph
Marshall Bromley 750 Raw Frequency Response Graph Sample

SAMPLE

GET INSIDER ACCESS

To see pictures and test results

Binaural Recording @ 1m 
 

GET INSIDER ACCESS

Binaural Recording @ 2m 
 

GET INSIDER ACCESS

Soundstage 
 

4.9
N/A

Directivity Graph  

 Preview Graph
JBL PartyBox 1000 Directivity Graph
Marshall Bromley 750 Directivity Graph Sample

SAMPLE

GET INSIDER ACCESS

To see pictures and test results

Directivity Index 
 

5.78 dB
Lock dB

Stereo 
 

No (mono)
Locked
Show Text 

Dynamics 
 

7.9
N/A

Dynamic Range Compression  

 Preview Graph
JBL PartyBox 1000 Dynamic Range Compression
Marshall Bromley 750 Dynamic Range Compression Sample

SAMPLE

GET INSIDER ACCESS

To see pictures and test results

SPL @ Max Volume 
 

109.4 dB SPL
Lock dB SPL

DRC @ Max Volume 
 

4.13 dB
Lock dB
Show Text 
Active Features

Battery 
 

0.0
N/A

Battery Life 
 

N/A
Lock hrs

Charge Time 
 

N/A
Lock hrs

Power Saving 
 

No
Locked

Charging Port 
 

No Battery
Locked

Battery Powered 
 

No
Locked
Show Text 

Voice Assistant 
 

0.0
N/A

Alexa 
 

No
Locked

Google Assistant 
 

No
Locked

Speakerphone 
 

No
Locked

Siri 
 

No
Locked

Voice Assistant 
 

No
Locked

Voice Activation 
 

No
Locked

Microphone Mute 
 

No Microphone
Locked

Far-Field Performance 
 

No Microphone
Locked

Ambient Noise Performance 
 

No Microphone
Locked

App 
 

0.0
N/A

App Picture 
 

Compare High-Res
JBL PartyBox 1000 App Picture
Marshall Bromley 750 App Picture Sample

SAMPLE

GET INSIDER ACCESS

To see pictures and test results

App Name 
 

No App
Locked

iOS 
 

No
Locked

Android 
 

No
Locked

EQ 
 

No
Locked

Stereo Pair Mode 
 

No
Locked

Party Mode 
 

No
Locked

Multi-Room 
 

No
Locked
Show Text 
Connectivity

Wired 
 

Aux Input 
 

Yes
Locked

USB Audio 
 

Yes
Locked

Other Ports 
 

Yes
Locked
Show Text 

Bluetooth 
 

8.3
N/A

Bluetooth 
 

Yes
Locked

Bluetooth Version 
 

4.2
Locked

Bluetooth iOS Latency 
 

145 ms
Lock ms

Bluetooth Android Latency 
 

168 ms
Lock ms

Bluetooth Range 
 

319.9 ft (97.5 m)
Lock ft (Lock m)

Multi-Device Pairing 
 

3 Devices
Locked
Show Text 

Wi-Fi 
 

0.0
N/A

Wi-Fi Version 
 

No Wi-Fi
Locked

Wi-Fi Frequency Band 
 

No Wi-Fi
Locked

Wi-Fi 
 

No
Locked

Apple AirPlay 
 

No
Locked

AirPlay Latency 
 

N/A
N/A

Google Chromecast 
 

No
Locked

Chromecast Latency 
 

N/A
N/A

Check Price

Black
PartyBox 1000
SEE PRICE
Amazon.com
Black/Brass
Bromley 750
SEE PRICE
BestBuy.com
Black
PartyBox 1000
SEARCH
B&H
Black/Brass
Bromley 750
SEE PRICE
B&H
Black
PartyBox 1000
SEARCH
BestBuy.com
Black/Brass
Bromley 750
SEE PRICE
Amazon.com
Black
PartyBox 1000
SEARCH
JBL
Black/Brass
Bromley 750
SEARCH
Marshall
Black
PartyBox 1000
SEARCH
Walmart.com
Black/Brass
Bromley 750
SEARCH
Walmart.com
Back to Top

JBL PartyBox 1000

Marshall Bromley 750

Comments

  1. Comparison
 • Posted 2 hours ago

JBL PartyBox 1000 vs Marshall Bromley 750: Main Discussion

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