Using tuner out to split signal to a second amp?

[Tim1]

I have a large outdoor gig coming up where I would like to split my signal to a second amp. Please don't ask why etc. and yes there is FOH support and so on. i simply want to have the option. I am thinking that the simplest way would be to take the tuner out send on my Aguilar DB751 straight into the second amp. I am assuming that the signal would be pre eq and unaffected by and gain/master variations. Does anyone know if this is correct or is there a better (and similarly inexpensive) way to achieve the same end.

 

[Aloe]

usually this is done with plugging fx send on one amp into fx return on another. it likely will be post-eq but pre-master.

if you want strictly pre-everything signal to be split, your best bet is a Y splitter before both amps. I believe, for best results it should be active or signal should be buffered in some other way.

 

[Analogeezer]

I have a large outdoor gig coming up where I would like to split my signal to a second amp. Please don't ask why etc. and yes there is FOH support and so on. i simply want to have the option. I am thinking that the simplest way would be to take the tuner out send on my Aguilar DB751 straight into the second amp. I am assuming that the signal would be pre eq and unaffected by and gain/master variations. Does anyone know if this is correct or is there a better (and similarly inexpensive) way to achieve the same end.

I would assume the tuner out for that head is the same impedance/output as an instrument but you might want to verify this first.

I say assume because most tuners are designed to plug an instrument directly into but you might want to verify that (the specs for your tuner out)

Do you have a second head around prior to the gig to try this? I'd rather try this before the gig rather than at the gig.

Analogeezer

 

[agedhorse]

In general, a tuner out will work fine but you will want to check that the polarity of the two rigs is correct (ie. one is not out of phase with the other) BEFORE the gig. This is true of all dual amp rigs where the amps were not specifically designed to work this way.

 

[Tim1]

In general, a tuner out will work fine but you will want to check that the polarity of the two rigs is correct (ie. one is not out of phase with the other) BEFORE the gig. This is true of all dual amp rigs where the amps were not specifically designed to work this way.

Thanks, I had not thought of that aspect. I know how to check the polarity of speakers with a 9 volt battery. Is there a similarly easy way to check a whole rig?

 

[walterw]

. I know how to check the polarity of speakers with a 9 volt battery. Is there a similarly easy way to check a whole rig?

it’s a bit trickier, the best way is probably to just try it

place the two rigs right up against each other, adjusted to the exact same volume, and listen; if adding the second amp makes it sound bigger and deeper you’re in polarity, if it sounds weird and hollow and like the sound is coming from the sides then you’re out of polarity

 

[jeff7bass]

I remember running a headphone out from my cheap old stereo into my old bass rig and it worked. Parents were not happy.

 

[rodl2005]

Would the battery test work on all cabs?
And speakers be moving out at the same time?

 

[Tim1]

Would the battery test work on all cabs?
And speakers be moving out at the same time?

Battery test works fine on all cabs, but it does not test heads which is the point of my question. Some amps have reverse polarity.

 

[agedhorse]

Battery test works fine on all cabs, but it does not test heads which is the point of my question. Some amps have reverse polarity.

Correct, each entire signal path must be tested.