Harley Benton HBAC-20


This item runs exclusively on an operating voltage of 230 and therefore requires a voltage transformer to run in your country of United States.

Acoustic Guitar Combo

  • Power: 20 Watt
  • Components: 8 " speakers with tweeters
  • XLR microphone input with volume control
  • Active / passive switchable jack guitar input
  • 3-Band EQ with parametric middle
  • Reverb and chorus switchable and controllable
  • Line Out
  • RCA input
  • Dimensions (W x H x D ): 42 x 37 x 25 cm
  • Weight: 10 kg
available since November 2007
Item number 117741
sales unit 1 piece(s)
Power in Watts 20
Speaker size 1x 8"
Channels 2
Reverb Yes
Effects Processor Yes
External FX Loop No
Microphone Input Yes
Line Input Yes
Battery Operation No
Footswitch connection No
Incl. Footswitch No
Weight 10,0 kg
B-Stock from $76 available
The shipping costs are calculated on the checkout page.
In stock within 4-5 weeks
In stock within 4-5 weeks

This product is expected back in stock soon and can then be shipped immediately.

Standard Delivery Times
It doesn't wake up from standby mode – 2 units, the same problem, no solution from Thomann, I am giving up
Leo M 10.12.2021
I am very sorry to give this amp such a negative review, but I really have to – because I have the perception of being mislead (as the product was not what I expected from the site description) and because I really hope that no one will have the problems it gave me + the lack of efficiency by Thomann in solving the problem.

I bought this amp in the beginning of March 2020.

First of all, I spent a lot of time just trying to make it work. Then I discovered the unexplainable "feature" of standby mode which can only be resolved by strongly hitting your strings, which is something I just cannot understand: why the hell does someone need to make a lot of noise to have their gig working? And why, as it's really not an habitual or practical feature, is it not clearly stated in the product description ? (it's not, at all, even after so many reviews criticizing that fact).
But ok, since I understood it, I began to play and it worked well: sound ok, "effects" insignificant for an advanced effect user like me (but anyway, I was not expecting something good on that part), robust material, simple operation... ok.
Then, suddenly, the amp was not leaving standby mode anymore. I did everything you can imagine: tried different sockets, cables, instruments, volumes, etc. Nothing worked. I contacted Thomann support; they asked me to send them the amp, which I did. After a couple of days, they wrote to me saying that it was tested and was working normally, and they were sending it back to me. Keep in mind that I informed them very well about the problem, sent them videos of me trying to making it work, etc.
Guess what? The amp arrived with the same problem: it stays forever in standby mode (green light), never going to operating mode (red light).

I wrote to them, and after a while not answering me (like 2 months, this was in November), I finally lost my patience, wrote a tempestuous e-mail... and suddenly got a bunch of quick answers (in a matter of hours) from them. Yeah, it's always sad to confirm that we need to be unpleasant to get the deserved attention. One of those e-mails said that they were shipping another amp to replace this one. Two days later, I received the new one. Working.

And it worked for a while.
And then...

Yes, the same problem. It lights up, but never turns red. And again, I tried everything: plugged in an exclusive socket, switched cables, instruments, bypassed all the pedals (plugging directly to the amp), etc. Nothing.

Now is the part where I say bad things about Thomann and how they (did not) manage the problem.
I lost a lot of time and patience last time, when I had the same problem, and, in fact, they did not solve it. They gave me a replacement one, which worked for a while, and then had the same problem again, so I have every reason to suppose that it's a general problem for this model. They absolutely did not try to really UNDERSTAND what's going on, just standard test procedures and replacement policies, no real research – nothing "technical" in their technical support.
I know they are going to ask me to send the amp to them, then they will do those dumb procedures again and conclude that everything is working fine and it will be only a loss of time, with no real solution. Maybe, if I sent them unpleasant e-mails again, I would get a new one (the third) – which, again, would work for a while, and then no more. I just don't have anymore time to spend on this (it's been almost two years), so I am really giving up on this and concluding that I spent my money on an illusion – noting that the "standby feature" is still not informed on the product description (and this puts some responsibility on Thomann) – and going for another purchase (obviously not with them).

I will finish this review with this advice: if you are thinking on buying a cheap amp, I really don't recommend this one, and I also don't recommend counting on Thomann's support if you have a real problem.


Nil Hammerstrumm 30.03.2022
This amp has one extremely irritating feature: the automatic standby mode...f.i. when you switch it on, you will not immediately have sound...it seems to have a life of its own deciding when to actually let the sound through. After 30 secs you think , "okay, maybe turn up the volume", but that has nothing to do with it...and then, because the volume was turned up, when in its infinite wisdom it has decided to suddenly let the sound through, you get a heart attack and so does your audience because it is so darn LOUD!!!. Totally UNFIT FOR LIVE GIGS !!!
I had this amp for almost 2 years now and everytime when I switch it on, I wonder: "how long until it actually does something??"
A pity, because for the rest it is not too bad. Though I doubt the usable, clean volume exceeds that of a 10 watt amp, because it tends to oversteer.


Very good
Hugo Leite 26.06.2019
Bought this combo for personal use, at home, with a nice guitar and microphone.
Balances of volume between both inputs are not equal obliging always to set guitar volume a bit lower.
The sound is quite bright and it has enought power to play and sing in pub without noisy people.
Both Chorus and Reverb work nicely, lacking those controls for micro.
The combo is lighter than I expected, meaning it's easy to transport it anywhere.
Finishings are not awsome when you look at them closely but, from far, it has a nice visual impact.
I am playing with it, regularly, for one year and a half and it maintains the original caracterisitcs.
Concearning the price, sound quality and durability I'd say is a very good buy.


Disappointing Overall
Anonymous 06.03.2016
The sound levels begin to distort at about 6/10, greatly limiting how you'll use it. Also, the front panel (control buttons area) is loose and when you try to pull out the XLR or jack the panel kind of wants to come with it. Likewise when inserting a cable, the face depresses in about 2-3cm.

I do like the ability to control where abouts in terms of frequency where "mid" is, that's what attracted me to this amp. It's a good feature to fine tune the sound.

It's also got this weird thing where when you turn it on, it won't play out sound until it feels an active signal, then it changes mode (light turns from green to red) and only then will it output sound. This was not affected by toggling the active/passive switch on the amp, I have to use my finger on instrument cable to complete the circuit whilst using my other hand to toggle the chorus button several times before it will change modes and play. Now that I think about it, it's actually a pretty awful amp.

To be honest, I'm here looking at what could be my replacement amp.