HPF vs Parametric EQ for controlling rumble w/Streamliner and Thunderchild?

[KJung]

Totally agree.

During my early attempts at trying to get a better low B, I had a rack setup that measured flat down to around 10Hz, and a huge cab/processor combo that was flat down to about 32Hz, at least on paper.

At low volume levels, the open B felt and sounded pretty awe-inspiring, but it was fart city the moment I tried to keep up with a drummer. In comparison to that, I can't get over the SL900's ability to lay down such a big, plush-feeling low end without excessive cone movement.

I think that Ukiah Bass's issue (and mine), is further up into the bass and low mids, and it's related to the interaction of room acoustics, cab behavior and the Streamliner's midbass hump. EDIT: Having recently tried a 15/6/1 at the Toronto GTG, I can see why he'd want to trim the bass back a bit in some situations...

On a scope, you can see the Streamliner's steep HPF sloping away rapidly below about 39Hz. But just above that, there's a broad midbass hump, peaking at about 200Hz. Because the tone controls are so interactive, it's hard to tame the midbass without neutering the low end.

That's where an external EQ comes in handy.

This makes total sense. The high pass thing discussed earlier didn't. My guess is, your 'final tone' with the external EQ is not that far off from what you could get relatively easily with the new Shuttle 6.2 or 9.2.

If I was buying a head specifically to match up with the Thunderchild, it would be the new Puma500. The power match-up is perfect, and the EQ is perfect.... 30hz bass shelving to control the deep low end without slamming your mid punch, 250hz low mid for fatness, 800hz upper mid to either add grind or remove gank, and a very high 10K shelving treble to control or add sizzle and 'air'. The amp is tiny also, and priced reasonable low (around $1K).

I really liked my original Puma500 matchup with the Thunderchild. The new one is a bit more even in the mids and a bit less extended in the deep lows, 1/3rd the size, and 25% less expensive. Really impressive.

I would also think the new Genz 6.2 would work wonderfully with the Thunderchild if you wanted a bit more brightness and 'tube character'.

 

[eeyorebass]

The thumpinator's slope is too shallow to allow you to crank up the bass knob and still be safe. It looks around 12db/octave.

Mike Putnam - P u t n a m G u i t a r s - Custom guitars mods amps pedals effects speakers

Thanks a lot for responding. I get what you're saying now. The Thumpinator threads in the effects forum suggest the slope is much steeper than 12db/octave, but I wasn't able to find any hard numbers. Nice to know about other options anyway.

Sorry for the derail, everybody.

 

[N. Kentucky Bass]

Or you can use the one pound ParaEQ and make any amp sound how you want. Many ways to reach tonal objectives!

 

[KJung]

Or you can use the one pound ParaEQ and make any amp sound how you want. Many ways to reach tonal objectives!

Again, was commenting on the high passing, which makes little sense with the Genz heads, since there is a very good high pass filter built into the amp (unlike many other heads). Adding additional EQ to make an amp work would not be my choice (I try not to buy amps that aren't capable of generating my basic tone without external help).

However, I agree, if it gets you there, it gets you there.

 

[rpsands]

Thanks a lot for responding. I get what you're saying now. The Thumpinator threads in the effects forum suggest the slope is much steeper than 12db/octave, but I wasn't able to find any hard numbers. Nice to know about other options anyway.

Sorry for the derail, everybody.

If you look at the chart they provide it looks like 12db/octave with a little corrective bump for the loss at the filter knee frequency or whatever.

Guessing the knee is 30hz too, which is a smidgen low for a 12db filter. Bottom line is it doesn't look like it's much more than 4-6db down at 20hz, which is insufficient IMHO.

I'm sure it does a MUCH better job than nothing!

 

[kringle77]

Get an fdeck pre/hp filter and be done. I have one and love it for getting a sealed cab sound out of ported cabs and running my acoustic bass into it before the board reduce boom and feedback. It really tightens your sound and get alot of punch.

 

[Mike Arnopol]

Fdeck will have (?) a new one that will be more effective and flexible. I'll be trying it soon. It will have a 12db/octave fixed knee at 35hz and an additional adjustable knee 12db/octave.

 

[steve_rolfeca]

...My guess is, your 'final tone' with the external EQ is not that far off from what you could get relatively easily with the new Shuttle 6.2 or 9.2.

If I was buying a head specifically to match up with the Thunderchild, it would be the new Puma500. The power match-up is perfect, and the EQ is perfect.... 30hz bass shelving to control the deep low end without slamming your mid punch, 250hz low mid for fatness, 800hz upper mid to either add grind or remove gank, and a very high 10K shelving treble to control or add sizzle and 'air'. The amp is tiny also, and priced reasonable low (around $1K).

Not sure I'll be looking at the Puma- they're pretty much unobtainium in Canada.

I do plan to take a look at the new Shuttle "point twos" when they hit my nearest dealer, Mojo Music in Oakville. The Shuttle 9.0 and Shuttle Max 9.2 didn't do it for me, but my mind is always open (my wife sez it resembles an old screen door).

If I could do a straight trade for a 6.2, or even better a trade plus cash, I might consider it. I like the Empress enough that I would still keep it around for guitars, keys, recording, etc., but it would certainly be convenient to not have to schlep an EQ with me, especially to small gigs. Mostly because of the extra hassle at setup and teardown, rather than the size or weight.