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  5. Heston 120
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Marshall Heston 120  Soundbar Review

Notice: Below are the preliminary measurements for the Marshall Heston 120. Insiders have early access to the test results, and some measurements may be updated before publication.

The full review will be published in a few days.
Tested using Methodology v1.3 
Marshall Heston 120
Channels
Locked
 4

Changelog

  1.  Updated Mar 02, 2026: Early access published.
  2.  Updated Feb 11, 2026: Our testers have started testing this product.
  3.  Updated Oct 10, 2025: The product has arrived in our lab, and our testers will start evaluating it soon.
  4.  Updated Sep 30, 2025: We've purchased the product and are waiting for it to arrive in our lab.

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Test Results

perceptual testing image
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Design
Style - Bar
SAMPLE
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Marshall Heston 120 Style photo - bar Sample
Style - Subwoofer
Sub Wireless
LockedLocked
Enclosure
LockedLocked
Style - Satellites
Satellite Wireless
LockedLocked
Dimensions - Bar
SAMPLE
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Marshall Heston 120 Dimensions photo - bar Sample
WidthLockedLock" (Lock cm)
HeightLockedLock" (Lock cm)
DepthLockedLock" (Lock cm)
Dimensions - Subwoofer
WidthLockedN/A
HeightLockedN/A
DepthLockedN/A
Dimensions - Satellites
WidthLockedN/A
HeightLockedN/A
DepthLockedN/A
Mounting
SAMPLE
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Marshall Heston 120 Bar Mounting Holes Sample
Mountable Bar
LockedLocked
Bar Brackets Included
LockedLocked
Mountable Satellites
LockedLocked
Satellite Brackets Included
LockedLocked
0.0
Build Quality
SAMPLE
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Marshall Heston 120 Build quality photo Sample
In The Box
SAMPLE
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Marshall Heston 120 In The Box photo Sample
Sound
0.0
Stereo Frequency Response
SAMPLE
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Marshall Heston 120 Stereo Setup Sample
SAMPLE
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Marshall Heston 120 Raw Frequency Response Sample
SAMPLE
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Marshall Heston 120 Frequency Response Small Sample
Channels
LockedLocked
Tested Preset
LockedLocked
Slope
LockedLock
Standard Error
LockedLock dB
Low-Frequency Extension
LockedLock Hz
High-Frequency Extension
LockedLock kHz
LEARN ABOUT STEREO FREQUENCY RESPONSE 
0.0
Stereo Frequency Response With Preliminary Calibration
SAMPLE
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Marshall Heston 120 Frequency Response Calibrated Sample
Suggested Preset
LockedLocked
Suggested Bass Setting
LockedLock
Suggested Treble Setting
LockedLock
Slope
LockedLock
Standard Error
LockedLock dB
Low-Frequency Extension
LockedLock Hz
High-Frequency Extension
LockedLock kHz
0.0
Stereo Soundstage
SAMPLE
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Marshall Heston 120 Crosstalk Sample
Crosstalk Error
LockedLock dB
LEARN ABOUT STEREO SOUNDSTAGE 
0.0
Stereo Dynamics
SAMPLE
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Marshall Heston 120 Dynamic Range Compression Sample
SPL @ Max Volume
LockedLock dB SPL
DRC @ 90dB
LockedLock dB
DRC @ Max Volume
LockedLock dB
LEARN ABOUT STEREO DYNAMICS 
0.0
Center
SAMPLE
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Marshall Heston 120 Center Setup Sample
SAMPLE
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Marshall Heston 120 Frequency Response Sample
Localization
LockedLocked
Slope
LockedLock
Std. Err.
LockedLock dB
SPL @ Max Volume
LockedLock dB SPL
Weighted THD @ 80dB
LockedLock
Weighted THD @ Max Volume
LockedLock
LEARN ABOUT CENTER 
0.0
Surround 5.1
SAMPLE
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Marshall Heston 120 Surround Setup Sample
SAMPLE
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Marshall Heston 120 Frequency Response Sample
Localization
LockedLocked
Slope
LockedLock
Std. Err.
LockedLock dB
SPL @ Max Volume
LockedLock dB SPL
Weighted THD @ 80dB
LockedLock
Weighted THD @ Max Volume
LockedLock
7.1 Rears
LockedLocked
LEARN ABOUT SURROUND 5.1 
0.0
Height (Atmos)
SAMPLE
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Marshall Heston 120 Height Setup Sample
SAMPLE
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Marshall Heston 120 H Frequency Response Sample
Localization
LockedLocked
Slope
LockedLock
Std. Err.
LockedLock dB
SPL @ Max Volume
LockedLock dB SPL
Weighted THD @ 80dB
LockedLock
Weighted THD @ Max Volume
LockedLock
LEARN ABOUT HEIGHT (ATMOS) 
0.0
Sound Enhancement Features
Room Correction
LockedLocked
Dialogue Enhancement
LockedLocked
Auto-Volume/Night Mode
LockedLocked
Subwoofer Level Adjustment
LockedLocked
Bass Adjustment
LockedLocked
Treble Adjustment
LockedLocked
EQ
LockedLocked
Surround Level Adjustment
LockedLocked
Rear Level Adjustment
LockedLocked
Height Level Adjustment
LockedLocked
Virtual Surround
LockedLocked
LEARN ABOUT SOUND ENHANCEMENT FEATURES 
Connectivity
Inputs/Outputs - Bar
SAMPLE
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Marshall Heston 120 Physical Connections Bar Photo 1 Sample
Optical Audio In
LockedLocked
HDMI Out
LockedLocked
HDMI 2.1 Class Bandwidth
LockedLocked
Full HDMI In
LockedLocked
Analog Audio In 3.5mm (Aux)
LockedLocked
RCA In
LockedLocked
USB for Files
LockedLocked
Ethernet
LockedLocked
Subwoofer Output
LockedLocked
0.0
Audio Format Support: ARC/eARC
Dolby Atmos
LockedLocked
Dolby Digital
LockedLocked
Dolby Digital Plus
LockedLocked
Dolby TrueHD
LockedLocked
DTS
LockedLocked
DTS:X
LockedLocked
DTS-HD MA
LockedLocked
PCM Channels
LockedLocked
0.0
Audio Format Support: HDMI In
Dolby Atmos
LockedLocked
Dolby Digital
LockedLocked
Dolby Digital Plus
LockedLocked
Dolby TrueHD
LockedLocked
DTS
LockedLocked
DTS:X
LockedLocked
DTS-HD MA
LockedLocked
PCM Channels
LockedLocked
0.0
Audio Format Support: Optical
Dolby Digital
LockedN/A
DTS
LockedN/A
PCM Channels
LockedN/A
0.0
Audio Latency: ARC
SAMPLE
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Marshall Heston 120 ARC Latency Video Sample
PCM-2.0 ch
LockedLock ms
PCM-5.1 ch
LockedLock ms
Dolby MAT (PCM) Atmos
LockedLock ms
Dolby Digital
LockedLock ms
Dolby Digital Plus
LockedLock ms
Dolby Digital Plus Atmos
LockedLock ms
LEARN ABOUT AUDIO LATENCY: ARC 
0.0
Audio Latency: HDMI In
SAMPLE
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Marshall Heston 120 HDMI Latency Video Sample
PCM-2.0 ch
LockedLock ms
PCM-5.1 ch
LockedLock ms
Dolby MAT (PCM) Atmos
LockedLock ms
Dolby Digital
LockedLock ms
Dolby Digital Plus
LockedLock ms
Dolby Digital Plus Atmos
LockedLock ms
LEARN ABOUT AUDIO LATENCY: HDMI IN 
0.0
Audio Latency: Optical
PCM-2.0 ch
LockedN/A
Dolby Digital
LockedN/A
LEARN ABOUT AUDIO LATENCY: OPTICAL 
0.0
Video Passthrough To TV
1080p Max Refresh Rate
LockedLocked
1080p @ 4:4:4 Max Refresh Rate
LockedLocked
4k Max Refresh Rate
LockedLocked
4k @ 120Hz @ 10-Bit
LockedLocked
4k @ 4:4:4 Max Refresh Rate
LockedLocked
8k Max Refresh Rate
LockedLocked
HDR10 Passthrough
LockedLocked
HDR10+ Passthrough
LockedLocked
Dolby Vision Passthrough
LockedLocked
HDMI Forum VRR Passthrough
LockedLocked
FreeSync Passthrough
LockedLocked
G-SYNC Passthrough
LockedLocked
ALLM Passthrough
LockedLocked
0.0
Wireless Playback
Bluetooth
LockedLocked
Wi-Fi Playback
LockedLocked
Chromecast built-in
LockedLocked
Apple AirPlay
LockedLocked
Spotify Connect
LockedLocked
Additional Features
Interface
SAMPLE
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Marshall Heston 120 Interface photo Sample
Display
LockedLocked
Bar Controls
SAMPLE
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Marshall Heston 120 Controls photo Sample
Remote
Voice Assistants Support
Amazon Alexa
LockedLocked
Google Assistant
LockedLocked
Apple Siri
LockedLocked
Microphone Mute
LockedLocked
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