Marshall Middleton II vs Sony ULT FIELD 5

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Middleton II compared with ULT FIELD 5

	MarshallMiddleton II	SonyULT FIELD 5
Overview
Released
Released	July 2025	April 2025
Sound
Type
Type	Portable speaker	Portable speaker
Channels
Channels	Stereo	–
Dolby Atmos
Dolby Atmos	No	No
Drivers
Drivers	Two 3-inch woofers, two 0.6-inch tweeters and two passive radiators, in a sealed cabinet; True Stereophonic 360° sound	2-way; one X-Balanced Speaker Unit woofer (about 79 × 107 mm) and two tweeters (about 46 mm, left and right), with passive radiators
Amplifiers
Amplifiers	Two 30 W class D for the woofers, two 10 W class D for the tweeters	–
Frequency response
Frequency response	50 Hz – 20 kHz; up to 87 dB SPL at 1 m	–
Room tuning
Room tuning	Bass and treble controls on the speaker and in the Marshall Bluetooth app	ULT button with ULT1 (deep bass) and ULT2 (punchy bass); Sound Field Optimization; 10-band custom equaliser in the app
Connections
Wi-Fi
Wi-Fi	No	No
Bluetooth
Bluetooth	Yes	Yes
AirPlay
AirPlay	No	No
Voice assistants
Voice assistants	None	None
Bluetooth
Bluetooth	Bluetooth 5.3; SBC, AAC and LC3; multipoint; 60 m range	Bluetooth 5.3; SBC, AAC and LDAC; A2DP, AVRCP and SPP; multipoint connection to two devices; Google Fast Pair
Ports
Ports	USB-C in (5, 9, 12 or 20 V, 3 A) and power bank out; 3.5 mm aux in	3.5 mm audio input; USB-C for charging in and out (can charge a phone at 5 V, up to 1.5 A)
Multi-room
Multi-room	–	Stereo Pair with a second ULT FIELD 5; Party Connect with compatible Sony speakers
App
App	Marshall Bluetooth app	Sony | Sound Connect
Design
Battery life (maker's claim)
Battery life (maker's claim)	Up to 30 hours	Up to 25 hours
Water and dust resistance
Water and dust resistance	IP67	IP67
Weight
Weight	1.8 kg (better)	3.3 kg
Battery life detail
Battery life detail	Over 30 hours; replaceable lithium-ion battery; 3 hours to charge; 20 minutes of charging gives 5 hours; battery preservation setting	About 25 hours at volume 18 of 50 with ULT on and the lights off; about 10 hours with the lights on; about 2.5 hours at maximum volume with the lights on; about 3.5 hours to charge with a 9 V 3 A USB PD adaptor; 10 minutes of charging gives about 100 minutes of playback; Battery Care mode limits charge to about 90%
Controls
Controls	Multi-directional control knob; power, bass, treble and Bluetooth pairing controls on top	Buttons for power, Bluetooth/Stereo Pair, CONNECT (Party Connect), play, volume, ULT and LIGHT; battery and Battery Care button behind the cap; 360° Party Lights
Microphones
Microphones	Built-in microphone for hands-free calls	None listed among the parts, and no calling profile (HFP or HSP)
Mounting
Mounting	Carry strap	Detachable shoulder strap
Size
Size	230 × 110 × 98 mm (W × H × D)	320 × 144 × 125 mm (W × H × D)
Colours
Colours	Black and Brass, Cream	Black, Off White
In the box
In the box	Middleton II, strap, USB-C cable, quick start guide, legal and safety information	Speaker, shoulder strap, USB-C to USB-C cable