APART PA8250 Manuel utilisateur
INFO@APART-AUDIO.COM
MANUAL
PA8250
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2
1. Power switch
Flip this switch to turn power on and off.
2. Power led
This led is lit when power is on.
3. Channel 1 – 8 level controllers
Set the ch. 1 to 8 channel level individually with these level controllers.
4. Channel 1 – 8 status leds:
Upper “limit” led lights up when the internal limiter is active.
This should not or only very sporadically happen. Turn the level controller down if this led lights up
channels 1 to 8.
This led lights up red when the internal protection circuitry is active, due to an overload or a short
circuit. When powering up the PA8250, these leds are red during a few seconds,
this is to avoid turn on plops and clicks.
For those who need more power, there is the possibility of bridging the channels.
Front panel
1 3 42
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1. Fuse
Replace only with a fuse of the same rating: 10 amps, slow blow.When this fuse blows often, please
contact your local dealer and have your device serviced.
2. Link switch
When pushed in, this switch allows you to link the inputs of the odd and even numbered channels
through. E.g. left input on channel 1, right input on channel 2, by pushing the 1to3/2to4 switch, the L
input on channel 1 is switched through to channel 3 and the R input on channel 2 is switched through
to channel 4.
3. Balanced inputs channel 1 to 8
Connect your balanced input sources on these Euroblock connectors.
4. Unbalanced inputs channel 1 to 8
Connect your unbalanced input sources on these cinch/RCA connectors.
Do not use balanced and unbalanced on the same channel !
6. Stereo/mono switch
Push this switch for stereo or mono operation.
7. 2 channel/bridged switch
Ω!
Connect the speaker – terminal to the even numbered output channel’s + connector and
the speaker + terminal to the odd numbered output channel’s + terminal.
Back panel
28 1
6 7 5 4
3
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8. Speaker terminals
Connect your speaker wires on these euroblock terminals. Note that minimum load impedance is
4Ωin 2 channel mode and 8Ωin bridge mode.
Please avoid ground loop problems and use this switch only in case of emergency.
This is not a miracle problem solving switch
Note: you can use all 8 channels from one stereo source by pushing the 1 to 3/2 to 4, 3 to 5/4 to 6 and
e.g. if you link 1 to 3/2 to 4 you have to apply your input channel to inputs 1 and 2 and keep
inputs 3 and 4 free.
REAR panel
Block diagram
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Technical Specifications
OUTPUT POWER PER CHANNEL 20HZ TO 20 KHZ
140W
250W
500
) >250
20HZ - 20 KHZ +/- 1 DB
CROSSTALK
SLEW RATE S
20 K
10 K
-
FUSE 10A SLOW
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ANY SUGGESTION?
They are well appreciated and eventually rewarded!
Send your ideas or suggestions to
PA8250 is developed by
Audioprof nv
BE-2100 Deurne
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