Marshall Willen vs JBL Go 4

Last updated: August 18, 2026

Short answer: the Marshall Willen for better sound quality, the JBL Go 4 for the lower price. The Marshall Willen ranks #14 of 47 small speakers at $120. The JBL Go 4 ranks #25 at $39.95, $80.05 cheaper.

On the Marshall Willen side: Exceptionally clear vocals for a mono speaker. Set against that: Not that deep of bass.

What the JBL Go 4 gets right: A little more bass than the Go 3 and they fixed the strange mids peak. The catch: Not much bass at all, especially with electronic/bass-heavy tracks pushed past ~50% volume.

Buy the Marshall Willen if sound quality matters more than the price. Buy the JBL Go 4 if the price matters more than sound quality.

If battery life is a priority, the Marshall Willen is rated for 15 hours versus 7 hours for the JBL Go 4.

Marshall Willen vs JBL Go 4

Specifications Side By Side

Marshall Willen JBL Go 4
Price$120 Discontinued$39.95
Ranked#14 of 47 in Small Size Portable Bluetooth Speakers#25 of 47 in Small Size Portable Bluetooth Speakers
AppYesYes
Bass Extension (-10dB)75Hz~82Hz
Battery Life15 hours (Manufacturer specified)7 hours (Manufacturer specified)
Built in MicrophoneYesYes
EQYesYes
IP RatingIP67IP67
Party ModeYes (Marshall Stack)Yes (Auracast)
Power BankNoNo
Power InputUSB-CUSB-C
StereoNoNo
OmnidirectionalNoNo
TWSNoYes
Weight0.7 lbs / 309 g0.4 lbs / 190 g
Aux InputNoNo
Bluetooth CodecsSBCSBC
Bluetooth Version5.15.3
Drivers2" (51mm) full-range with dual passive radiators45mm
Dimensions4" x 1.5" x 4" (101 x 39 x 101 mm)3.7" x 3" x 1.7" (94.3 x 75.7 x 42.2 mm)
Output Power10W4.2W
DiscontinuedYes-
Max Volume88dB-
Digital Aux InputNoNo
Frequency Response-90Hz - 20kHz (Manufacturer specified)
Charging Time-3 hours

More useful head-to-heads from the same speaker class:

The Two Speakers In Full

Marshall Willen: $120 Discontinued Amazon

Marshall Willen ranking card

Pros: Exceptionally clear vocals for a mono speaker. Solid, durable build with IP67 water/dust resistance. Extremely compact - fits in a back pocket.

Cons: Not that deep of bass. A bit of a sharp treble. Discontinued.

AppYes
Aux InputNo
Bass Extension (-10dB)75Hz
Battery Life15 hours (Manufacturer specified)
Bluetooth CodecsSBC
Bluetooth Version5.1
Built in MicrophoneYes
Digital Aux InputNo
Dimensions4" x 1.5" x 4" (101 x 39 x 101 mm)
DiscontinuedYes
Drivers2" (51mm) full-range with dual passive radiators
EQYes
IP RatingIP67
Max Volume88dB
OmnidirectionalNo
Output Power10W
Party ModeYes (Marshall Stack)
Power BankNo
Power InputUSB-C
StereoNo
TWSNo
Weight0.7 lbs / 309 g

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JBL Go 4: $39.95 Amazon Bhphotovideo

JBL Go 4 ranking card

Pros: A little more bass than the Go 3 and they fixed the strange mids peak.

Cons: Not much bass at all, especially with electronic/bass-heavy tracks pushed past ~50% volume. Midrange can sound grainy and treble a bit sizzly; loses clarity at higher volumes.

AppYes
Aux InputNo
Bass Extension (-10dB)~82Hz
Battery Life7 hours (Manufacturer specified)
Bluetooth CodecsSBC
Bluetooth Version5.3
Built in MicrophoneYes
Charging Time3 hours
Digital Aux InputNo
Dimensions3.7" x 3" x 1.7" (94.3 x 75.7 x 42.2 mm)
Drivers45mm
EQYes
Frequency Response90Hz - 20kHz (Manufacturer specified)
IP RatingIP67
OmnidirectionalNo
Output Power4.2W
Party ModeYes (Auracast)
Power BankNo
Power InputUSB-C
StereoNo
TWSYes
Weight0.4 lbs / 190 g

As an eBay Partner, we may be compensated if you make a purchase.