Using an RoHs A-B box

[shawbridge]

Hi everyone,
Has anyone ever used the A-B abs 521 with an AC30 that had the EF86 add on mod, with success.
My issue has been, that during a Gig, keep swapping channels from the AC30 normal then climbing over the back of the Amp to plug into the EF86 input.
I bought one of the boxes but not had chance to try it proper but I assume it to be the answer, to make it tidier on stage presentation.
Here is the ‘Thing’ would you think that you loose sound quality?
My set up is Amp, H&C, guitar.
Any advice and or experience using a machine like this gratefully appreciated.

Cheers
Pete

[Charlie Hall]

Hi Pete,
That AB box should work fine with your setup.
Regards,
Charlie

[shawbridge]

Hi Charlie,
Thanks very much for your reply, I tried it at our local pub on Tuesday night, it worked a treat.
The only thing I am not sure about it, what would create the better sound, with the volume turned up on the AB box or just on the AMP volume settings?

Thanks
Peter

[bazmusicman]

Hi Peter,

I would keep the Amp volume higher than the AB volume because if you did it the other way round you could cause distortion by overloading the Amp input. It wont damage the Amp but if your playing Shads stuff you would want a clean sound.

Regards,
Baz,

[shawbridge]

Hi Baz,
Hope your doing okay.
Yes, that’s correct, I had wondered wether or not it was a psychological thing with it, thinking the sound was different using the AB box but I know it shouldn’t be.
Our singer said my sound was thinner than usual but it could be that I didn’t alter the EQ as we had a rehearsal in a studio in the afternoon and got the sound pretty much nailed but when we played a spot in the pub n the night, it wasn’t the same sound I had in the rehearsal.
All I did in the pub was alter my volume setting, I should have checked my EQ to make sure I had a fuller sound.
As mad as it sounds, the folks in the pub said it sounded fabtastic but it just goes to show that us Anoraks only know the difference lol

[Charlie Hall]

Sept 16, 2021 18:19:13 GMT shawbridge said:

Hi Charlie,
Thanks very much for your reply, I tried it at our local pub on Tuesday night, it worked a treat.
The only thing I am not sure about it, what would create the better sound, with the volume turned up on the AB box or just on the AMP volume settings?

Thanks
Peter

Hi Peter,
The EF86 channel has lower input headroom than other channels, so always test for overload with that channel.
Regards,
Charlie

[shawbridge]

Hi Charlie,
Thanks for your advice, I will look at that.

Peter

[bazmusicman]

Sept 17, 2021 10:33:05 GMT shawbridge said:

Hi Baz,
Hope your doing okay.
Yes, that’s correct, I had wondered wether or not it was a psychological thing with it, thinking the sound was different using the AB box but I know it shouldn’t be.
Our singer said my sound was thinner than usual but it could be that I didn’t alter the EQ as we had a rehearsal in a studio in the afternoon and got the sound pretty much nailed but when we played a spot in the pub n the night, it wasn’t the same sound I had in the rehearsal.
All I did in the pub was alter my volume setting, I should have checked my EQ to make sure I had a fuller sound.
As mad as it sounds, the folks in the pub said it sounded fabtastic but it just goes to show that us Anoraks only know the difference lol

Hi Peter,

Yes I'm doing OK thank you.
As you have noticed EQ can vary in different venues, also what sounds good when the room is empty can sound a lot different when it's full of people! Glad to hear the Amp is still giving you good service.

Regards,
Baz.

[shawbridge]

Hi Baz,
Yes that’s right but in hindsight, I should have checked we’re I had my Bass set, are you on Facebook, if so I can send you the video in messenger.
The video is of the whole night but you can skip it to were we the Band get up and do about 8 numbers.

Cheer
Peter

[bazmusicman]

Hi Pete,

Yes I am on Facebook, do you need my email address?

Baz.

[shawbridge]

Hi Baz,
Yes please, I need your full name so I can find you on Facebook and send you our videos, unfortunatley I am unable to post here, I can’t find a method of doing so but I have tried.

Cheers
Peter

[derekdelboy]

Hi Pete

Just a suggestion for you... you can upload what you want ie videos , text docs , mp3 etc to BOX and send the link (s) via PM to Baz.

[bazmusicman]

Hi Pete,

I have sent you a PM.

Baz.