Jump to content
Why become a member? ×

Shelving freqs. suggestions


fleabag
 Share

Recommended Posts

My amp/speaker/bass sound is not ideal ( for me ) and i'm looking for some help to squeeze out a tone thats suits me. Currently, the sound i get is too twangy, a smidgeon too gritty, with little in the way of low end oomph . I use a 2 x10 and 1x15, though not the setup i desire, its all i have.

Preamp ( and FX ) is a Digitech BP8, and instead of the bass mid treble on regualr preamps, I got shelving EQ. ( bit confusing )

If any more info is required to make the suggestions, go ahead and i will post back

Cheers

Link to comment
Share on other sites

Very possible its not helping JT, and cabs are not matched, but anyways - i've logged the freq for the shelving

This is how they look.

Low ---- lowest freq possible is 31hz

Mid 1 ----------------------- ----is 80hz

Mid 2 -------------------------- is 250hz

High ---------------------------- is 1000hz

Crossover minimum is 80hz and above ... max is 500hz and above

Edited by fleabag
Link to comment
Share on other sites

I'd work on one cab... the 210, and centre those 4 controls...
I wouldn't bother whether this 'true' flat or not... it is where I would start getting the sound..
and it becomes the reference point.
I assume you don't have any other filter type controls to confuse things..??

The twang to me, seems to point to a mid hole..which you don't seem to fancy.
I think the bass at about 11, and the 2 mids around about 1 o'clock with the
intention of filling that hole. I can't hear how the mid controls will fill that hole though.
Treble wouldn't be more that 1 either, depending how you hear you sound.

A lot depends on how effective the EQ stage actually is.
Can you dilute the grind with less gain..??

Link to comment
Share on other sites

[quote name='Mr. Foxen' timestamp='1356287935' post='1908848']
Work on the assumption the cabs aren't giving you anything below about 45hz, so pulling down the lows will give you a tone more headroom.
[/quote]
This, plus I would trry stacking the 2x10 vertically ontop of the 1x15. See if the sound clears up.

Link to comment
Share on other sites

[quote name='fleabag' timestamp='1356282987' post='1908773']
My amp/speaker/bass sound is not ideal ( for me ) and i'm looking for some help to squeeze out a tone thats suits me. Currently, the sound i get is too twangy, a smidgeon too gritty, with little in the way of low end oomph . I use a 2 x10 and 1x15, though not the setup i desire, its all i have.

Preamp ( and FX ) is a Digitech BP8, and instead of the bass mid treble on regualr preamps, I got shelving EQ. ( bit confusing )

If any more info is required to make the suggestions, go ahead and i will post back

Cheers
[/quote]

Buy a behringer bass graphic equaliser for £20 on the internet. It will give you a lot more EQ options than you have now.

Link to comment
Share on other sites

[quote name='JTUK' timestamp='1356287288' post='1908842']
I'd work on one cab... the 210, and centre those 4 controls...
I wouldn't bother whether this 'true' flat or not... it is where I would start getting the sound..
and it becomes the reference point.
I assume you don't have any other filter type controls to confuse things..??

The twang to me, seems to point to a mid hole..which you don't seem to fancy.
I think the bass at about 11, and the 2 mids around about 1 o'clock with the
intention of filling that hole. I can't hear how the mid controls will fill that hole though.
Treble wouldn't be more that 1 either, depending how you hear you sound.

A lot depends on how effective the EQ stage actually is.
Can you dilute the grind with less gain..??
[/quote]

JT , the EQ are not knobs. The only EQ is in the menu system, which are freqs that have to be set. EG on the low shelf which has a minimum of 31hz, i can set that at anything between 31-80hz, and can boost or cut

On the mid 1 which has a minimum of 80hz, i can set it anything between 80-250hz and boost or cut.

On the mid 2 which has a minimum of 250hz i can set that at anything between 250-1000hz and boost or cut.

On the high which has a minimum of 1000hz, i can that at anything between 1000 and beyond to boost or cut. There no other EQ adjustments

I backed off the input gain a tad, and this softened the grind a bit, then boosted the output to the power amp,

Link to comment
Share on other sites

[quote name='Mr. Foxen' timestamp='1356287935' post='1908848']
Work on the assumption the cabs aren't giving you anything below about 45hz, so pulling down the lows will give you a tone more headroom.
[/quote]

I can certainly set the low shelf to 45hz, and cut at that freq.

Link to comment
Share on other sites

[quote name='Prime_BASS' timestamp='1356289736' post='1908875']
This, plus I would trry stacking the 2x10 vertically ontop of the 1x15. See if the sound clears up.
[/quote]

I did try that last night at a gig, and it didnt sound that good, but then i hadnt got the advice here, so with the current advice, i might try stacking again

Link to comment
Share on other sites

[quote name='gjones' timestamp='1356291278' post='1908901']
Buy a behringer bass graphic equaliser for £20 on the internet. It will give you a lot more EQ options than you have now.
[/quote]

I could, but then i wouldnt run the behringer preamp and the BP8 preamp together, but i would lose all my FX. There isnt the option to defeat all EQ on the BP8

Link to comment
Share on other sites

[quote name='fleabag' timestamp='1356293954' post='1908946']
I can certainly set the low shelf to 45hz, and cut at that freq.
[/quote]

Probably best leaving as low as it will go and cutting, it will cut some above 45 and heads toward less ideal. Or set it to cut loads, and shift the freq up until you actually hear a tone change, then go back a bit.

Link to comment
Share on other sites

[quote name='fleabag' timestamp='1356293907' post='1908945']
JT , the EQ are not knobs. The only EQ is in the menu system, which are freqs that have to be set. EG on the low shelf which has a minimum of 31hz, i can set that at anything between 31-80hz, and can boost or cut

On the mid 1 which has a minimum of 80hz, i can set it anything between 80-250hz and boost or cut.

On the mid 2 which has a minimum of 250hz i can set that at anything between 250-1000hz and boost or cut.

On the high which has a minimum of 1000hz, i can that at anything between 1000 and beyond to boost or cut. There no other EQ adjustments

I backed off the input gain a tad, and this softened the grind a bit, then boosted the output to the power amp,
[/quote]

Yes..was talking about a dial... and got lost in the analogy...sorry.
A lot of pre amps have variables like this...and you think you will want the lows but you really don't.

What is the db cut and boost..? Would guess about 0-5 plus and minus.

I would probably start out around 60hz... no lower..and start with a small boost.
The mids will be the case of playing around...but just to keep it simple... until you get to know how the pre
works in terms of sound..I'd keep everything plus..or boosted....around 1.. If it sound horrible, cut by increments of 1.

This will likely be quite a labour... so small adjustments all going the same way... rather than random cuts and boosts..as thta just confuses where you are
with it all... especially as you will probably have to open a menu or sorts to recall where you set everything..

I had a variable pre like this insid a bass...was a nightmare to get to grips with...!!
Have to say, dials are easier..even 4 band para's which this seems modelled on.

Link to comment
Share on other sites

[quote name='Mr. Foxen' timestamp='1356296124' post='1908986']
See if cutting as much as it can is audible at 31 hz, cutting stuff your cabs aren't making sound is always going to be a win. Use the sweep to find when the cut becomes audible.
[/quote]

Tried that Foxy.

cut to -15 at 31hz, and then varied the cut from -15 to zero, and didnt really hear a difference. Next notch up from 31hz is 34hz, then 37hz, then 40hz, then 43hz, then 47hz and so on.

Doesnt seem to have much effect till we get into the 40's

Link to comment
Share on other sites

[quote name='JTUK' timestamp='1356297278' post='1909003']
This will likely be quite a labour... so small adjustments all going the same way... rather than random cuts and boosts..as thta just confuses where you are
with it all... especially as you will probably have to open a menu or sorts to recall where you set everything..

I had a variable pre like this insid a bass...was a nightmare to get to grips with...!!
Have to say, dials are easier..even 4 band para's which this seems modelled on.
[/quote]

Couldnt agree more. I think the suggestion to buy a cheap behringer as the EQ section is looking more succulent ! I have just found that i can fully defeat the EQ section, which i was sure i couldnt before.
I did this and heard next to no difference. How weird

Edited by fleabag
Link to comment
Share on other sites

If it's the Jack 210 you've got the frequency plots are very flat. You may be getting too much top end in your ears. Is that what you mean by twangy?

Try putting the 2x10 underneath the 1x15. The coupling you get with two cabs should give natural bass boost anyway.

If the cabs are not matched you should also check that they are in phase. First try one cab then plug the other one in you should get a noticeable increase in volume. If not, use a 9v battery and touch the terminals briefly to a speaker lead and note which way the speaker jumps, then repeat for the other cab. It should jump the same way.

Link to comment
Share on other sites

Yep its a Jack

The 2x10 is way narrower and shallower than the 1x15, but slightly taller. I tried the 2x10 on top this evening after reading the posts, but the sound went a bit naughty. Vol, and bottom slightly disappeared.

But then one cab, the 15, is 8 ohm and the Jack is 4 ohm, but i've already been told there wouldnt be much audible vol difference.

But, as i keep making changes this evening, i'm starting to get a better sound, and though it will never be ideal due to the cab setup, its certainly improved, and i'm getting to the point where its more acceptable, ( to me ) bar finding another Jack, which is what i really want. One will turn up at some point i expect

Edited by fleabag
Link to comment
Share on other sites

I agree. I would ditch the 15" and just use the Jack. Stand it on end vertically, maybe lean it back a touch, it will look better and sound better. I have a Warwick 211pro that is more than loud enough for most gigs and, if I need it, another one that I stack vertically on top of it. That changes the sound a lot. More bottom end due to coupling and more definition due to the speaker closer to my ears.

Does your amp go down to 2ohms? A 4 and an 8 in parallel can be less than 4!

Edited by TimR
Link to comment
Share on other sites

Hi Tim - you could be right about just taking the Jack. Might experiment at the next gig !

I dont think my amp does 2 ohms, but then its a 2 channel output so it matters not a jot that i have a 15 500 watt 8 ohm cab on one channel, and a 2x10 500 watt 4 ohm cab on the other

Link to comment
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Guest
Reply to this topic...

×   Pasted as rich text.   Restore formatting

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

 Share

  • Recently Browsing   0 members

    • No registered users viewing this page.
×
×
  • Create New...