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Bi-amp question...

#21
Gasman said:
Forgive my ignorance, but how do you run effects to the high end only on a GK 800rb? Assuming you are using only one amp, of course. I have an old 800rb and would love to do this, but there is only one input jack. Would I need to plug effects into the loop instead of before the amp (which is my current setup)?
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We may have a generation issue here..

Biamping was the dealio in the early 90s..

There is a version (I do not know the exact model or revision).. that smartly put like 200 watts to low end and 100 to high end... it was an OK amp... I had one then quickly moved it when I found a Megabass.

A true biamp head requires reading the manual as they normally have so many little nuances to make them sound good.

In a PA spectrum, the cool thing is a sound crew can quickly help you dial it in..

I've had times where I've run my single 15 at front and middle of stage (between subs) and then a 2-10 on stage

Gives me enough to reference without blowing out the band.

With some creativity there are some very cool uses..

Probably not the right solution if you're a Pbass and SVT type dude.

----
I'm sorry for not knowing the exact GK head I had --- didn't last long as I upgraded.
 
#23
MNAirHead said:
...I've had times where I've run my single 15 at front and middle of stage (between subs) and then a 2-10 on stage...
Click to expand...

That setup will cause MAJOR phasing issues in the low end.

First of all, the best scenario is identical speakers in identical cabs lined up as a SINGLE source for bass (one location of all the cabs).

Using identical cabs but splitting them up so the source of the sound is separated will cause phasing (yes, even with PA subs on each side of the stage). Using different speakers and cabs (both run full range), even from a single source will cause phasing. Using both...different speakers and separating them will cause even more.

Why compound the problem when one can dramatically reduce it? :confused:

In the case of PA subs on both sides of the stage, it's mostly because they act as stands for PA mains to sit on, it looks cool and it's always been done that way. That doesn't make it the right way to do it.
 
#24
Sundogue said:
That setup will cause MAJOR phasing issues in the low end.

First of all, the best scenario is identical speakers in identical cabs lined up as a SINGLE source for bass (one location of all the cabs).

Using identical cabs but splitting them up so the source of the sound is separated will cause phasing (yes, even with PA subs on each side of the stage). Using different speakers and cabs (both run full range), even from a single source will cause phasing. Using both...different speakers and separating them will cause even more.

Why compound the problem when one can dramatically reduce it? :confused:

In the case of PA subs on both sides of the stage, it's mostly because they act as stands for PA mains to sit on, it looks cool and it's always been done that way. That doesn't make it the right way to do it.
Click to expand...

Phasing until you learn we down fired it toward the floor...... and the 2x10 was side washing away from the mains on a kick back.

Unfortunately some times we have to improvise a solution for a "supplied PA"

My SVT wouldn't have been able to do this setup as efficiently... we tried it.
 
#27
What happened?.... People danced and tallied up Wisconsin sized bar tabs -- we were then booked back for 6 gigs.... this was our job of the day.

Like noted.. not something I prefer doing.. it's an option that didn't work with the other head we were McGyvering with.

That being said.. it took TONS of time and thiel ratings and a few tosssed setups to find a mix that would cross over correctly.

If given the chance I'll always select a small kickback firing away from the audience and mains.. and DI it to someone who's focused on the spectrum.


I'm not here to debate if the custom cabinets and biamp heads work -- anyone who wants to drop in can give it a whirl. Bill F graciously helped engineer out many of the issues when designing with the EV engineers.

My first suggestion to anyone serious about gigging would be to spend the cash on a good IEM setup.
 
#28
ok, this may be in the same series of questions. At the current moment, I have a Eden wt400, eden2x12, 2x10 & 1x15. I want to run lows to the 15 and my highs to the either both the 12's and 10's or just one, doesn't matter. How can I achieve this?

sorry if its a stupid question.

pedal board is a Tone Hammer, VT bass, and a Tuner.

I have a BBE Sonic Max 362 and a Eden Metro head (that needs to be repaired) I was thinking of picking up another amp.
 
#29
MNAirHead said:
Phasing until you learn we down fired it toward the floor...... and the 2x10 was side washing away from the mains on a kick back.
Click to expand...
That makes no difference. The phase problems that arise when you separate cabs take place in the low frequencies, where it doesn't matter which way the cab faces.

ok, this may be in the same series of questions. At the current moment, I have a Eden wt400, eden2x12, 2x10 & 1x15. I want to run lows to the 15 and my highs to the either both the 12's and 10's or just one, doesn't matter. How can I achieve this?
Click to expand...
There's no point, as the difference in response of the three cabs is insignificant.
 

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