limiter in fx send/return circuit?

[fnkyhd]

i want to be more specific here: can or does an fx send and return circuit in a cheap amp have a limiter? i bought and returned an acoustic 100w combo because once i got it cranked up it was attenuating in an obvious and unuseable way. i assumed it was a bad unit but on second thought maybe not. i want to try the rumble 100 but don't want to be too annoying for the shop and myself lugging things around.

 

[agedhorse]

Only if that's what the designer included, most do not.

If you are hitting the amp so hard that the limiter is clamping down like that, you may not have enough rig for the gig.

 

[fnkyhd]

so you think there is a limiter?

 

[agedhorse]

so you think there is a limiter?

Maybe, don't know.

 

[beans-on-toast]

You are best with an external pedal in most cases. Playing dynamics are good, a limiter can remove that. Also your playing can help to act like a limiter, dig in or let up. It all depends on what you want to sonically achieve. The question is, why do you want a limiter?

 

[flaps]

You are best with an external pedal in most cases. Playing dynamics are good, a limiter can remove that. Also your playing can help to act like a limiter, dig in or let up. It all depends on what you want to sonically achieve. The question is, why do you want a limiter?

Did you read the post?

 

[FullumMusic]

Not sure if this is the same 100w acoustics amp you got or not, but it the manual doesn't show a limiter in the signal flow.

If there was some sort of onboard limiter circuit (either for peak protection or as an added tone feature) it probably wouldn't be tied to the FX loop. I mean, i can't speak to every amp ever manufactured. But usually, it would either be the last thing before the power amp as a means of protecting the amp or speaker, or somewhere closer to the input gain.

If there was an onboard limiter that you were hitting that hard, you probably need a more powerful amp with more headroom. And if not, something else going on with how you're using the FX Loop, or how you're setting your pedals in the loop that's not playing nice with the amp. Without knowing your full signal chain and how you set everything in it and the amp, can't really say though.

 

[beans-on-toast]

Did you read the post?

Some people use compressors to get more out of an amp, that was the basis of suggesting to use an external one at the input.

If the amp is the Acoustic B100C, it has a four band EQ with notch filter. How it is set could be limiting the output. Also, try turning the volume up all the way and use the gain to set the overall level.

 

[Aloe]

i bought and returned an acoustic 100w combo because once i got it cranked up it was attenuating in an obvious and unuseable way

well, not every gear sounds good when maxed out. the question is: does it get loud enough before it sounds bad?

if not, well, it's only a 12" 100w combo, that's not that loud.

 

[newfuture]

It most likely won't have a limiter in the path of the FX loop. My guess as to the cause of attenuation would be the settings/ operating levels of the stuff in the loop.

Full signal flow description would help diagnose.

 

[HueyFreeman]

My Littlemark 58r had a limiter in it's signal path.
I believe some Quilters have a limiter in theirs as well.
I also use a Traynor Dynabass sometimes that has a limiter, but it can be switched out.

 

[agedhorse]

Limiting can be an integral part of the power amp, and often is. It may not be described in the block diagram either. Block diagrams are often very simplified.

 

[fnkyhd]

thanks for the replies. update: i picked up the rumble100 and it sounds great using the send/return loop with 5 pedals. with the band i had the master up all the way and the gain about noon. countour button on, overdrive off and everything else at noon. no attenuation and no amplified hiss from the bass, i am happy! and it's super light too! gonna sell my little rumble 25 if i can.