Model used in recent weeks on a Rivera Chubster 40 (combo).
I found running a little long but it was worth it.
I have not tried other models before buying it, but I talked at length with other users of this amp who advised me that choice model, especially to wake my channel "distortion "calm and treble for 2 channels.
Well, it's undeniable, I can now get an accurate equalization on my channel distortion. Without having screaming treble or high and low intractable mediums.
From memory, I paid just under € 80 new with a promo on a website selling online and it's well worth !!
I'm just saying that I should change the HP much earlier

Rendering, especially on the crunch channel is much better!
I'm not saying that HP is the world's best. However, the report quality price is excellent.