Seymour Duncan 805 Overdrive

Great overdrive for Marshall tube amps. I use it in my DSL which is already kind of harsh on high gain. With other OD pedals it sound even more harsh, but this pedal smooths it nicely.

It compresses sound a bit. You can adjust the Bass, Mid and Treble knobs pass 12 to further compress the sound into your preferred proportions.

As a minor flaw, the beautiful green paint can be easily scratched off.

Overdrive will be used both for music rehearsals as well as during recording sessions and concerts.

The sound and ease of use are definitely a plus. This is exactly what I expected from an overdrive of this type.
Deserving praise is the ability to independently adjust the sound of the bass, mid and high tones

Personally, I don't see any disadvantages. Maybe the EQ knobs should be a bit bigger, but it's basically irrelevant.

This is for tubescreamer addicts ! You can dial in various tube screamer based sounds with less bass, more treble, or more bass, less mids etc. But it remains a tubescreamer; It's not like a very flexible overdrive pedal that gives different tastes of overdrive, only the tubescreamer taste in different forms. And it does that very well. Other reviews gave me the impression you could make really different OD sounds.

I love to make a less bass, more trebly chimey sound with it that isn't possible with the original one.
You could use an EQ pre or post a 'real' tubescreamer, but the 805 is easie and faster. It was also when I tried quickly with an eq-pedal before a tubescreamer.

I think you still need an original tubesreamer or copy of it too, because that single tone knob is something different to dial in comparing to the three EQ knobs. And it is most definitely not restricted to blues as some reviews say. Tubescreamer can be used for lots of stuff and certainly for chimey shoegaze, with reverb or delay, chorus. It is one of the best pedals ever.

Conclusion ; Meant for Tubescream-lovers who want to go a step beyond, on an easy way, without eq-pedals. Very good sound. Maybe the Wampler Clarksdale is interesting too, it has an extra clipping mode. But I don't know if his tubescreamer sound will have this same quality.