fdecks HPF, Part II

[Coolhandjjl]

Mine sits on my head.

 

[Turock]

Mine sits on my head.

You must have a HatPF.

 

[BurningSkies]

I hear you. I'll have to try it.

It would be easy enough to put a bit of velcro tape on the top of the rack, remove the little rubber feet off the HPF3 and put one on the unit as well. I haven't had trouble with it dancing off, even in high volume-hollow stage shows.

 

[bucephylus]

It would be easy enough to put a bit of velcro tape on the top of the rack, remove the little rubber feet off the HPF3 and put one on the unit as well. I haven't had trouble with it dancing off, even in high volume-hollow stage shows.

Yeah, I'll have to see how much I end up adjusting it. I've been fine with the fixed HPF in my GB amps. But, I also know what happens when we get an extra knob to twist. Just have to wait and see.

 

[BurningSkies]

Yeah, I'll have to see how much I end up adjusting it. I've been fine with the fixed HPF in my GB amps. But, I also know what happens when we get an extra knob to twist. Just have to wait and see.

I rolled mine up a bit on Friday night. New tall hollow stage with cornerish placement, narrow room, all brick glass and tin, no fabric.

 

[bucephylus]

I rolled mine up a bit on Friday night. New tall hollow stage with cornerish placement, narrow room, all brick glass and tin, no fabric.

Are you using a decoupling pad, like a GRAMMA or something similar?

 

[Coolhandjjl]

Are you using a decoupling pad, like a GRAMMA or something similar?

Most of the time, a weak stage vibrates from the pressure of the sound waves about, not from the actual cab. IOW, even a cab hung from the rafters will still make the stage boomy sounding. Save your money.

 

[BurningSkies]

Are you using a decoupling pad, like a GRAMMA or something similar?

Nope. My cabs are well braced, so any vibration is minimal and because I run the cables through the cab/rack handles, the unit stays put.

 

[bucephylus]

Nope. My cabs are well braced, so any vibration is minimal and because I run the cables through the cab/rack handles, the unit stays put.

I meant in terms of eliminating the coupling to the hollow stage.

 

[bucephylus]

Most of the time, a weak stage vibrates from the pressure of the sound waves about, not from the actual cab. IOW, even a cab hung from the rafters will still make the stage boomy sounding. Save your money.

We will just agree to disagree. Hollow stages, IME, are notorious for reinforcing low end rumble. If you do not think decoupling from a hollow stage matters, all I can say is have fun with your sound guys.

 

[BurningSkies]

I meant in terms of eliminating the coupling to the hollow stage.

There's a way to do it, but the Gramma isn't going to be it. You really need about 18" off the stage for mechanical 'decoupling'. If I raise my amp a foot and a half up, I won't be able to reach the controls on my rack.

 

[bucephylus]

There's a way to do it, but the Gramma isn't going to be it. You really need about 18" off the stage for mechanical 'decoupling'. If I raise my amp a foot and a half up, I won't be able to reach the controls on my rack.

Hmmm. I have had the opposite experience. Most recent was a Big Band gig in a hanger at Falcon Field in Mesa AZ. I actually left my GRAMMA at home by mistake, and arrived to find us up on a large hollow stage. During sound check, the sound guy was all over me to turn down due to low end bleed into the mics. I went across the street to WalMart before the gig started and bought two foam kneeling pads from the gardening section. Put them under the cab, and cranked the volume back up. After the first set, the sound guy was all smiles. Totally eliminated the stage bleed.

I find it matters a lot.

 

[Coolhandjjl]

If a cab is properly braced, a decoupling pad, foam, towel, or whatever, can be of little benefit. But don't take my word for it. I learned it from the man himself, BFM.

That's why I love science. Even if you don't believe in it, it's still true. (I got that from Neil deGrasse Tyson.)

 

[T_Bone_TL]

Or as Randall Munroe puts it (hmm - I'll defang that link or it's ban-hammer time, I guess) though perhaps I can link some others; I guess I'd also better include the "Warning: this comic occasionally contains strong language (which may be unsuitable for children), unusual humor (which may be unsuitable for adults), and advanced mathematics (which may be unsuitable for liberal-arts majors)."

xkcd 54 and also 836 (836 comes after a certain change in the graph shown here) http://xkcd.com/1048/

...and then there's good old 931, but that's not quite on theme, however it relates to the above

http://xkcd.com/1217/

 

[jacoby75]

Do you think there would be a worthwhile benefit in using one of these with a direct only rig and no amp, or is it really only worth it for protecting your amp's speakers on stage? I play in a church where everyone runs direct and uses IEM's. No amps. I play five string basses into a pedalboard consisting primarily of a tech 21 blonde, a w&c phat phuk, compressor, and an mxr m80 direct box. I thought it might help clean up the sound a little. Not that there's necessarily anything wrong with my sound. I'm essentially just looking for a excuse to "need" something else on my pedalboard.

 

[Coolhandjjl]

Do you think there would be a worthwhile benefit in using one of these with a direct only rig and no amp, or is it really only worth it for protecting your amp's speakers on stage? I play in a church where everyone runs direct and uses IEM's. No amps. I play five string basses into a pedalboard consisting primarily of a tech 21 blonde, a w&c phat phuk, compressor, and an mxr m80 direct box. I thought it might help clean up the sound a little. Not that there's necessarily anything wrong with my sound. I'm essentially just looking for a excuse to "need" something else on my pedalboard.

PA's are typically high-passed, some as high as 80, and rarely lower than 60.

 

[mbelue]

Do you think there would be a worthwhile benefit in using one of these with a direct only rig and no amp, or is it really only worth it for protecting your amp's speakers on stage? I play in a church where everyone runs direct and uses IEM's. No amps. I play five string basses into a pedalboard consisting primarily of a tech 21 blonde, a w&c phat phuk, compressor, and an mxr m80 direct box. I thought it might help clean up the sound a little. Not that there's necessarily anything wrong with my sound. I'm essentially just looking for a excuse to "need" something else on my pedalboard.

PA's are typically high-passed, some as high as 80, and rarely lower than 60.

Yep, in your case if you really want one I'd recommend either a series I or II.
The gentler slope on those would be better suited to tone shaping in a circumstance with the PA doing all the heavy lifting.

 

[scotch]

The foh desk already has high pass filters. You're best to let the engineer decide whether to filter you & at what frequency he needs.

... I'm essentially just looking for a excuse to "need" something else on my pedalboard.

I think that right there is what a LOT of hpf users are buying these for!

 

[BurningSkies]

Do you think there would be a worthwhile benefit in using one of these with a direct only rig and no amp, or is it really only worth it for protecting your amp's speakers on stage? I play in a church where everyone runs direct and uses IEM's. No amps. I play five string basses into a pedalboard consisting primarily of a tech 21 blonde, a w&c phat phuk, compressor, and an mxr m80 direct box. I thought it might help clean up the sound a little. Not that there's necessarily anything wrong with my sound. I'm essentially just looking for a excuse to "need" something else on my pedalboard.

While there are other advantages beyond 'protect your speakers', in your case it doesn't make much sense. All of the reasons to use this have to do with using a traditional amp and speakers setup, or what those do with a room.

I don't often tell people to 'skip', but in this case, you should skip.

 

[jacoby75]

While there are other advantages beyond 'protect your speakers', in your case it doesn't make much sense. All of the reasons to use this have to do with using a traditional amp and speakers setup, or what those do with a room.

I don't often tell people to 'skip', but in this case, you should skip.

Good to know. Thanks. I just didn't know if there would be a discernible difference in the ear monitors, or a worthwhile difference in the signal I'm sending to the FOH. But good point, the FOH would have their own filters, if they know enough to know what they're doing with it (which is often NOT the case in small town church life). But I knew the difference, if any, would be negligible. Thanks for the feedback, guys.