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Stereofying a Peavey XR684 mixer amp ?
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N_Cook
Nov 13, 2012, 10:52:58 AM11/13/12
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So called stereo mixer amp , 2 outputs, 2x200W as main and monitor but no
PAN pots.
While in there for a lot of minor problems, any relatively simple way to
stereofy.
Break the main bus line in two and feed sepatately into the PAs and have a
basic (1 to4 ch to left and 5 to 8 ch to right ,with one or more feed/s
parallel split into 2 ,say to ch1 and vh5 etc ) stereo output and add a sw
somewhere to select Mono or Stereo options ?
PAN pots.
While in there for a lot of minor problems, any relatively simple way to
stereofy.
Break the main bus line in two and feed sepatately into the PAs and have a
basic (1 to4 ch to left and 5 to 8 ch to right ,with one or more feed/s
parallel split into 2 ,say to ch1 and vh5 etc ) stereo output and add a sw
somewhere to select Mono or Stereo options ?
Gareth Magennis
Nov 13, 2012, 11:39:11 AM11/13/12
to
"N_Cook" <div...@tcp.co.uk> wrote in message
news:k7tqc8$qca$1...@dont-email.me...
stereo sources, and plugging its outputs into the 2 x phono stereo input on
channel 9, and keep your 8 mono channels instead of reducing them to 4.
Or at least your customer would, as they wouldn't have to twiddle 2
different sets of EQ, Volume and FX send knobs every time they wanted to
change anything.
Gareth.
N_Cook
Nov 13, 2012, 12:43:38 PM11/13/12
to
Gareth Magennis <sound....@btconnect.com> wrote in message
news:KoKdneVJ2ptX6j_N...@bt.com...
The amp is in bits at the moment but according to the owner the 2x phono
pairs allow using a standard stereo phono lead connection but the signals
are summed and fed to the single bus to the single input of the PA amps, ie
mono out .
news:KoKdneVJ2ptX6j_N...@bt.com...
pairs allow using a standard stereo phono lead connection but the signals
are summed and fed to the single bus to the single input of the PA amps, ie
mono out .
Gareth Magennis
Nov 13, 2012, 12:57:56 PM11/13/12
to
news:k7u0rl$1fp$1...@dont-email.me...
According to the manual
http://www.peavey.com/assets/literature/manuals/80304400.pdf
channels 7,8, and 9 are all stereo and ARE routed left and right, if
left/right mode is selected.
The onboard effects are also stereo and go to left and right.
Gareth.
http://www.peavey.com/assets/literature/manuals/80304400.pdf
channels 7,8, and 9 are all stereo and ARE routed left and right, if
left/right mode is selected.
The onboard effects are also stereo and go to left and right.
Gareth.
Gareth Magennis
Nov 13, 2012, 5:00:03 PM11/13/12
to
>
> The amp is in bits at the moment but according to the owner the 2x phono
> pairs allow using a standard stereo phono lead connection but the signals
> are summed and fed to the single bus to the single input of the PA amps,
> ie
> mono out .
>
>
>
The obvious way of telling if its stereo or actually summed mono is if the
> The amp is in bits at the moment but according to the owner the 2x phono
> pairs allow using a standard stereo phono lead connection but the signals
> are summed and fed to the single bus to the single input of the PA amps,
> ie
> mono out .
>
>
>
volume (and EQ) pots are single ganged or dual ganged.
Gareth.
N_Cook
Nov 14, 2012, 3:49:57 AM11/14/12
to
Gareth Magennis <sound....@btconnect.com> wrote in message
news:ESvos.201260$nB6.1...@fx21.am4...
N_Cook
Nov 15, 2012, 10:12:27 AM11/15/12
to
ch5 and ch6 are down in level. Shared by SMD U500 dual op-amp and DC in
that area ,different to the other channels , so changed it, and the same
lack of throughput and same DC. Must be something else further upstream
loading that area
Will remove a 000 ohm to isolate to confirm first . I did not fully check
ch7,8,9 initially as different structures but I think they were low as well
, so something further upstream , requiring full dismantling as the boards
overlap, c'est la vie
that area ,different to the other channels , so changed it, and the same
lack of throughput and same DC. Must be something else further upstream
loading that area
Will remove a 000 ohm to isolate to confirm first . I did not fully check
ch7,8,9 initially as different structures but I think they were low as well
, so something further upstream , requiring full dismantling as the boards
overlap, c'est la vie
N_Cook
Nov 16, 2012, 7:06:16 AM11/16/12
to
looks as though I'm leading myself up the garden path. ch5 and 6 of this
unsuffixed xr684 are not as in the F suffixed version schemas that is out
there and must have more gain farther upstream , in comparison to ch1 to 4
unsuffixed xr684 are not as in the F suffixed version schemas that is out
there and must have more gain farther upstream , in comparison to ch1 to 4
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