Mackie ProFX8v2 Manual Do Proprietário

Pr

oFX8v2 • Pr

oFX12v2 • Pr

oFX16v2 • Pr

oFX22v2 • Pr

oFX30v2

TRS jacks and plugs are used for balanced signals and 

stereo headphones and are wired as follows according 
to standards specified by the AES (Audio Engineering 
Society):

1/4" TRS Balanced Mono Wiring:
     Sleeve = Shield (ground) 
     Tip = Positive (+ or hot) 
     Ring = Negative (– or cold)

To connect an unbalanced line to this  input, use  

a 1⁄4" mono (TS) phone plug or  instrument cable.  
They are wired as follows, according to standards  
specified by the AES (Audio Engineering Society):

1/4" TS Unbalanced Mono Wiring:
     Sleeve = Shield (ground) 
     Tip = Positive (+ or hot)

The channel 1 line-level input on the 
ProFX8v2 and ProFX12v2 may also accept 
instrument-level signals if the hi-z switch  

is engaged. This allows you to connect guitars directly 
into channel 1 without the need for a DI box.

The stereo line inputs are designed for 1/4" TRS   

balanced or 1/4" TS unbalanced signals. They may    
accept any line-level instrument, effects device, CD 
player, etc. 

Level control is available –20 dB to +20 dB.  

If you are connecting a mono source, use the left 
(mono) input, and the mono signals will appear  
on both sides of the main mix.

The first two stereo channels of each ProFXv2  

Series mixer are hybrid channels, each with a mic  
input XLR jack and low cut switch. Here the gain  
control only affects the mic input.

Hybrid Channels:
     • ProFX8v2 – Channels 3/4 and 5/6 
     • ProFX12v2 – Channels 5/6 and 7/8 
     • ProFX16v2 – Channels 9/10 and 11/12 
     • ProFX22v2 – Channels 15/16 and 17/18 
     • ProFX30v2 – Channels 23/24 and 25/26

These unbalanced 1/4" jacks are for connecting    

serial  effects processors such as compressors,  
equalizers, de-essers, or filters. 

The insert point is after the gain control and low  

cut filter, but before the channel’s EQ and level.  
The channel signal can go out of the insert jack  
to an external device, be processed and come back  
in on the same insert jack. 

To do this requires a standard insert cable that must 

be wired thusly:

     Tip = send (output to effects device) 
     Ring = return (input from effects device) 
     Sleeve = common ground

Insert jacks may be used as channel direct outputs; 

post-gain, and pre-EQ. If you insert a TS (mono)  
1⁄4" plug only  partially (to the first click) into an  insert 
jack, the plug will not activate the jack switch and will 
not open the insert loop in the  circuit (thereby allowing 
the channel signal to continue on its merry way through 
the mixer).

This allows you to tap out the channel signal without 

interrupting normal operation.

If you push the 1⁄4" TS plug in to the second click,  

you will open the jack switch and create a  direct out, 
which does interrupt the signal in that channel.  
See illustration below.

Do not overload or short-circuit the signal  
you are tapping from the mixer. That will  
affect the internal signal.

tip

This plug connects to one of the 

mixer’s Channel Insert jacks.

ring

tip

ring

sleeve

SEND to processor

RETURN from processor

(TRS plug)