Mic, Line, EQ... Preamps

[engel dela pena]

apex,
distribution amp
this is the way how i understand eesiboy
in like manner,this is how many commercial mixer does, it is the sub outs
where we can assign more amp in the same or different application
sub
mid hi
monitor
this is a good question
hope to hear you soon
regards

sorry,
eesbiboy
too late to edit

 

[apexaudio]

apex,
this ML3 is working
except the treble
good mid
good bass
maybe i.c.D fail
i will try to change TLO74
i will update you after
regards

Replace two 1nF condensators in input stage with 100pF,
Regards

 

[apexaudio]

apex,
distribution amp
this is the way how i understand eesiboy
in like manner,this is how many commercial mixer does, it is the sub outs
where we can assign more amp in the same or different application
sub
mid hi
monitor
this is a good question
hope to hear you soon
regards

You mean tree or four way active x-over?

 

[eesbiboi]

sorry,
eesbiboy
too late to edit

sir,...
what do you mean by that???...

 

[engel dela pena]

apex,
distribution amp
this is the way how i understand eesiboy
in like manner,this is how many commercial mixer does, it is the sub outs
where we can assign more amp in the same or different application
sub
mid hi
monitor
this is a good question
hope to hear you soon
regards

 

[engel dela pena]

You mean tree or four way active x-over?

suppose a 3-way is already there
for low mid & hi
how can we use multiple amp for low/sub

 

[apexaudio]

suppose a 3-way is already there
for low mid & hi
how can we use multiple amp for low/sub

Active four way x-over have separate outputs for sub, mid-bass, midle and horn amplifiers, like Mackie 'fussion' system,
Regards

 

[engel dela pena]

apex,
like this set up
ben duncan book cover
amplifier stockfile
is this parallel set up,sharing one signal ?
summing?
how to implement multiple amp set up?

 

[engel dela pena]

apex,
here is another set up
from crown system diagram
take a look at house L/R is this one mic/line signal? feeding 5 amps L & another 5 amps at the R
is this parallel?

 

[engel dela pena]

apex,
sorry for so many questions
i checked crown i.t4000/8000 manual
and found that it has provided another xlr connectors the signal at these connector is paralleled with the input signal for feeding the signal to another amplifiers
can i use post #73 and add another XLR connector for feeding the signal to another amps?
regards

 

[apexaudio]

apex,
sorry for so many questions
i checked crown i.t4000/8000 manual
and found that it has provided another xlr connectors the signal at these connector is paralleled with the input signal for feeding the signal to another amplifiers
can i use post #73 and add another XLR connector for feeding the signal to another amps?
regards

Yes with balanced input/buffer (post #73) you can use any amp you want in paralel connectin,
Regards

 

[engel dela pena]

Yes with balanced input/buffer (post #73) you can use any amp you want in paralel connectin,
Regards

apex,
is post 73 a balanced input/buffer?
can you post a balanced input/buffer

 

[apexaudio]

apex,
is post 73 a balanced input/buffer?
can you post a balanced input/buffer

Yes in post #73 is balanced input/buffer, volume control have not influence on input impedance with this circuit on amp input.

 

[Tube Pro]

Single pre out to multiple ampa

Active four way x-over have separate outputs for sub, mid-bass, midle and horn amplifiers, like Mackie 'fussion' system,
Regards

Hi, some or even most of the pro amps this day have link out male XLR balanced out to daizy chain multiple amplifiers.
Apex had also posted a balanced input pre amp with link out XLR port, that would I think fit your requirement.
Thanks, good luck:
>Joel
Philippines

 

[engel dela pena]

Replace two 1nF condensators in input stage with 100pF,
Regards

apex,
1nf already change to 100pf
treble still not working
please help

 

[apexaudio]

apex,
1nf already change to 100pf
treble still not working
please help

You must post pictures with both pcb sides.

 

[engel dela pena]

apex,
see my input jack tip & ring to input +/-
when guitar jack inserted +/- is shorted
i use guitar when testing

 

[apexaudio]

apex,
see my input jack tip & ring to input +/-
when guitar jack inserted +/- is shorted
i use guitar when testing

If you use mono jack (-, non inverting) will be shorted to gnd, and you get unbalanced input automatly when inserted jack. Can you post better picture of coper side pcb,
Regards

 

[engel dela pena]

apex,
how to apply this circuit as guitar pre amp
since guitar is mono only

 

[engel dela pena]

apex,
is this correct?