Harley Benton HBAC-20

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.

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.

I am a beginner and this is my first acoustic guitar amplifier.
While I waited for delivery, I took from a friend Harley Benton AC PRO 120.
Even at home, in a small volume HBAC-20 it sounds much worse.
I was expecting that if I setting all frequencies to 0 value I get a clean guitar sound.
Unfortunately this is not true.
I suppose that because of the woofer amplifier frequency curve is not linear.
I observe some abnormal gain of medium frequencies.

Also the effects have been some kind of synthetic.
Reverb I think is similar to the hall effect than normal reverberation.
But the chorus seems that only distorts the sound and not add real effect, and is not usable.

I'm really disappointed.

I can not say anything bad about the appearance or quality of manufacture.
But I suggest that before you purchase this amplifier try it in live. Maybe only I think that the sound is bad, and others like it.