Harley Benton JAMster Bass

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Combo for Electric Bass with Bluetooth 5.1

Power: 10 Watt
Equipped with: Custom Voiced 5’ bass speaker
Switchable normal and overdrive mode
Bluetooth 5.1 for practising, streaming and playing along
3.5 mm Mini-jack input for headphones
6.3 mm Jack input for instruments
Volume, sound and gain controls
Power supply via 9V 1.2A mains adapter (included in the scope of delivery) or 6x AA batteries (not included in the scope of delivery)
Battery life: approx. 4.5 hours
Dimensions (L x W x H): 245 x 123 x 152 mm
Weight: 950 g

30-Day Money-Back Guarantee

3-Year Thomann Warranty

Available since October 2024
Item number 579518
Sales Unit 1 piece(s)
Power rating in W 10 W
Speaker component 1x 5"
HF-Horn No
Equalizer Tone
Compressor No
Limiter No
Effects Unit No
Headphone Output Yes
DI Output No
Speaker Connector No
CD/MP3 Input Yes

B-Stock available from €35

€39

All prices incl. VAT

Sales Rank

in Solid-State Bass Combos

Information on the disposal of old devices

Bundles & offers

Harley Benton JAMster Bass B-Stock
May have slight traces of use

€35

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81 Customer ratings

5 50 Customers 4 15 Customers 3 8 Customers 2 3 Customers 1 5 Customers

4.3 / 5

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63 Reviews

Great practice bass amp

JamesOrinL 12.12.2024

I have the Joyo equivalent which is nice, but this Harley Benton Jamaster is smaller, has a fatter tone, and more features. I also use the Harley Benton Mini Stomp Deep Tone five band equalizer for an even deeper tone. Fantastic sound for quiet practicing.

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Just the job

chorna 12.05.2025

Wanted something light but decent sounding to practise while on holiday abroad. It scores well on both counts. It's plenty loud, but I took my ancient Hartke Bass Boost pedal to give it a slightly fuller sound and it passed the "do I want to sit for a while longer and jam?" test. The bluetooth function and headphone socket are nice touches. Only (very) minor downside is no carrying handle, but hey, for this price I could glue on a strap or buy a case.

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Does everything it needs to and more!

Moosipall 10.01.2026

First off, the packaging. I ordered a cable with it too, which for some reason doubled the size of the packaging. Pointless waste of space, but I digress.

However, the amp is really great. Took some time to get a good tone, but when I did, then man was it nice. It features a gain, volume and tone knob and also overdrive, which is really adequate to my standards. It's not too raspy or loud or too mild. The volume is great, you can play plenty loud if you want to, but the quality slightly suffers a bit on the low end. It also features bluetooth! I connected and played a song and it sounded alright. The treble of the audio felt a bit weaker than the original, but it's a bass amp so I digress. Amazing for the price! It comes with a short power cable and also can fit 2 AA batteries! The amp is also light and I imagine it would be easy to carry. Great for practise at home or maybe even playing out in a small place. Definitely worth a try, did not dissappoint!

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Super basic with one fatal flaw

arpeggiata 20.02.2026

Let's see, this is a dirt-cheap mini bass combo, which sounds as it looks: plasticky and thin. It does reproduce bass sounds, albeit with obvious plastic resonance. It distorts quite easily, even on the clean channel, though that can be adjusted with the volume pot on the instrument. The controls are straightforward and work as expected. Bluetooth is easy to connect and stream to as an external speaker. Power supply is standard 9V pedal-like with same barrel connector, meaning it can be powered with a pedal power supply or power bank. A handle or some strap pins would make it easier to grab and transport.

However, one subtle but fatal flaw that made me decide to return it, apart from the sound quality, is that the Bluetooth component connects as a speaker + microphone, when it really only is a speaker. When I connected my phone to stream some songs to play along, it worked fine, until I stopped for a moment to record a voice message, only to see that it had only recorded silence... This is because the phone thinks it is connected to a bluetooth microphone as well as speaker, but the JAMster speaker obviously is only a speaker and has no microphone. The Bluetooth chip should only connect as an external speaker, and this is a minor but annoying flaw. So, back to Treppendorf it goes.

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Harley Benton JAMster Bass

Combo for Electric Bass with Bluetooth 5.1

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81 Customer ratings

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63 Reviews

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Harley Benton JAMster Bass

Combo for Electric Bass with Bluetooth 5.1

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81 Customer ratings

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63 Reviews

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