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New Quilter bass amp!

I'd love to see some graphs or details on the Quilter EQ. I suspect there is more going on than just a simple shelving eq.
I believe the "Depth" is a shelving eq with a 100hz... and I think the "contour" to the right is a treble cut with the knee at 100hz.

If you told me my preferred 10 o'clock/ 2 o'clock setting was emphasizing a gentle high-bass, low-mid bump around 100hz or so, I'd believe you.
 
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Great comparison. I think the confusion is caused by the graphic on the front panel of the BB800. The graphic implies it might work as a HPF when turned to the left, but I think that might be more of a visual shorthand cue (like an emoji on your smartphone) rather than an accurate frequency graph. If I had to take a totally random guess, based on how I think Pat Quilter's brain works, the 'Depth' control probably has at least EQ two bands, I'm guessing maybe variable shelving at 100hz and fixed HPF at 30hz? and Pat has carefully studied the "desirable" sonic qualities of vintage tube amps.

When I compare my Broughton always-on HPF to my BB800's Depth control, my ears hear something a bit more "surgical" happening with the HPF. My favorite EQ setting on the BB800 is Depth 10 o'clock and Contour 2 o'clock. This gives a nice midrange-forward 'vintage' tone that sits well in the mix and doesn't really need a cab sim.
Bingo. Does anyone know the actual EQ points?
 
Huh, I guess it is some kind of quasi-shelving thing (the depth, that is), but it does feel more high-pass-ish than a typical "bass" -knob shelving eq (and yes, the graphic..). I like it though, and I follow someone else's suggestion here of rolling it all the way off when getting started and adjusting as needed from there. I don't do that with my fdeck, but I've been using that thing for over 10 years..
 
There was a discussion about this over here:

Using Parametric EQ as a Poor Man's HPF?

It's closed for comments and you'll have to wade through some fussin' but there's some good info there :)
Way too much fussin' to make for learning. I get that a low shelf only has a maximum cut or boost below its lower knee but I guessed wrong that it would be too low to make any difference given that icon on the knob.
 
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If you told me my preferred 10 o'clock/ 2 o'clock setting was emphasizing a gentle high-bass, low-mid bump around 100hz or so, I'd believe you.
That's a nice setting and works well with my 210 cab. Got this dialed in at home, and bumped the bass a bit in the practice room so I was right about 10 and 2.
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Pretty clever design, especially when you start using the gain as "make-up volume" control - kind of like an old school tube amp thing;).
 
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Bingo. Does anyone know the actual EQ points?

The Manual for the 800 says:
DEPTH regulates only the frequencies below 100Hz
CONTOUR - Turning to the left introduces a mid scoop that produces a crisp snappy tone. Turning to the right progressively reduces treble for a rounded vintage tone.

Not much detail, but pretty sure I remember official word from quilter the Depth being a shelving eq with the knee at 100hz, on on the Contour a mid cut at 250hz to the left, and a "deep treble cut" with some kind of point at 100hz

The Manual for the 802 says:
The 4 EQ knobs, DEPTH, WOOF, BARK, and SNAP (100, 300, 1K and 2K)

Not much info there about what is actually going on.
 
Huh, I guess it is some kind of quasi-shelving thing (the depth, that is), but it does feel more high-pass-ish than a typical "bass" -knob shelving eq

I agree.
I also feel like the Contour (to the right) feels more low-pass-ish than a typical "treble" cut knob.

I like it though, and I follow someone else's suggestion here of rolling it all the way off when getting started and adjusting as needed from there.

+1 - I've started doing that more and more, with all my amps.
 
Just sold my BB800, it's a beast of an amp but for smaller restaurant/ bar gigs I've been using a TC BQ500 amp for its more traditional EQ section. I like to keep the amp eq flat and boost the highs until I get just enough for a little slapping' then I roll the tone off my Jazz until I get the burpy tone for 90% of the songs my cover bands do. I found I had to keep my tone knob on my Jazz basses dimmed when using the BB800 and it was difficult to get anything other then a vintage tone unless I was using more volume and cabs at larger gigs, which again the BB800 sounded fantastic. Hopefully I'll pickup the 802 eventually with its "snap" knob?
 
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Hey Tom,
Not an easy question to answer, but curious if the 2-band filter style EQ could get you places that the 4-band active could not.
In other words, can I get a tone out of the 800 that I could not duplicate with the 802?

We have a detailed review of both heads (and all six cabs!) which will go live very soon. This will show you what can be accomplished with each tone stack. But in general, I suppose their may be some "unique" tones you could dial in with one that might be harder to dial in with the other, but as for the "usable tone range," they can both cover most of the same ground - though the 802 does allow for more high end boost.