Harley Benton Custom Line Bass DI-Expander
Effect Pedal

Latest User Reviews
Fabulous little pedal
Great sound, great especially for live use so I don't have to bring a great big amplifier with me, I can just DI to front of house.
Too good to be true
Took it out of the box, plugged in my bass and got nothing but a wall of static out of the headphones.
I put a battery in it. It’s so noisy, can’t even hear the bass. So bad. Don’t recommend this.
Really good for the price
Was looking for a simple DI box without too much settings and that one really ticks all the box. Sounds really good. Compressor is alright but not great. Blend setting is a good addition. Really good deal overall, my only suggestions would be:
- Have a slightly bigger version with a tuner
- When the preamp is engaged the light turns red and green when it's not. it does feel a bit counter intuitive.
- The knobs do feel a bit cheap and the bass, middle and treble don't "click" when set to 0db
Would recommend!
Stopped turning on after a few uses
I liked it while it worked, but it spontaneously stopped turning on after having it for a few months and barely using it. Now it's just a useless box.
Perfect Utility Pedal for All Bassists!
Harley Benton has blown my expectations out of the water yet again! This DI-expander has really expanded my sound and playing capabilities in live settings. I am a very involved bassist on my church's worship team and do my own music ministry as well and have used this thing on a very regular basis. After some time experimenting when I first purchased this item, I am now able to sculpt my bass' sound exactly how I like it before it enters the soundboard and the sound engineer's hands. The compressor also has greatly improved my dynamic range when playing with the rest of the band so I don't get lost in the sound mix. The one recommendation I have is that if you purchase this item you should also buy the optional DC adapter because the 9V batteries die quite quickly during regular use. Apart from the power draw, this thing is incredible! The item quality is top notch and very durable. This product is perfect for any bass player's tool kit. The utility and functionality is too good pass on! It can be a DI box, a nice pedalboard addition, or even a nice sound mixing interface for practicing with headphones on. It is a must buy. I never leave home without putting it in my gig bag!
A solid DI preamp
I recently got this preamp for gigging. The sound is great, I have three little complaints:
-when the effect is on the light is red and when it is off the light is green
-the blend knob blends the dry signal with the tone control, rather than the compressor
-(being nit-picky) I would like a bit more drive/gain.
Overall this is a great product, especially for the price. My rating is five stars no matter the little things, because you get used to them quite fast.
Does what it says on the tin
Grain of salt - I'm still a student of the bass; I don't gig yet.
Build - solid, buttons click nicely, knobs turn smoothly. But what is up with the lights?!? Green is off and red is on. Maybe that's a German thing? All manner of inputs and outputs (In, Out, Thru, DI, Line In, Phones).
Sound - I like the compressor. Simple but effective. The EQ has an adjustable mid that is fun to play with. Overall doesn't add noise to the signal.
Save your money
Cheap, lots of features but soooooo bad. Noise is through the roof, lots of extra hum somehow, clips all the time even with a passive bass. Save up for a decent unit, skip this one.
Great value.
I am hard pressed to find something similar in the same price range with these features.
Technical Data
- Manufactured by Harley Benton
- Released in 2017
- Average price : $96
- Active bass preamp / DI pedal with compressor
- True bypass
- Controls: Gain, Bass, Middle, Freq, Treble, Blend, Volume, Comp and Threshold DI Switch (Ground / Lift)
- Input switch: (0dB / -10dB)
- Jack input
- Thru jack input (parallel)
- Line in
- Jack output
- Headphone output
- Balanced DI output via XLR
- Dimensions : 128mm x 93mm x 56mm
- Weight : 450g (without battery)