I need some help with EQ on the quilter 803. I've been playing bass for almost 30 years, gigged in many situations, but I have never had the eq problems I'm having in my current band's small rehearsal room. I'm using my v803 with the Quilter Bassdock 12 cab, and Am Pro II P bass with cobalt flats. The room is fairly small, low ceiling, several large windows, wood floors. I struggle to get a tone resembling anything with punchy fundamental clarity. I get booming lows on the E string, a lack of volume on the A string, and honky tones on the D and G strings.
I have the amp set to the warm setting, eq is flat, tried turning down the bass eq, but then I just lose all punch and everything sounds too grindy. The band has two guitars who play at reasonable volumes, and a drummer who can occasionally get loud.
Please help.
First question, did you use a different amp in your rehearsal room before you got the 803 that worked better for you?
From the description of the room my guess would be you've got some room acoustics issues that are contributing to your problem. It doesn't sound like an environment that favors a punchy bass sound. If you're able to try playing with a full band in a tighter sounding room, do that. The kind of room you're in has such a huge influence on the bass sound, but I'm sure you know that already. If you experience the same issues elsewhere then you can take the room out of the equation and isolate it to your rig.
For me, punch really comes from having headroom on the amp, which gives you more dynamic range. The 803 has plenty of power so that shouldn't be an issue, but I've never used mine with the Bassdock 12 cab so I can't give you a direct comparison there.
As far as the 803 amp settings, I find the modern setting to be a little punchier than the warm setting.
I concur with Tom B's assessment of the scoop input - it does seem to create more low mid presence, but if you haven't already done so I'd try comparing it to the flat input in context to see what happens.
According to the 803 manual, raising the input level control creates some saturation, so if you have it on the high side you might want to back it off and see if that makes a difference.
I almost always have the bass control at about 9 o'clock - I find anything higher to be too boomy with my cabs.
Also, try turning the mid frequency control all the way up and bump the mid level up a couple of notches above the flat position. The "1k nose" in engineer-speak is often a good way to help the bass to cut through a mix.