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Can I convert this mono EQ to a stereo eq

lavmonga

lavmonga

Jul 27, 2007
2,059
514
New York, NY
www.ulyssescannon.com
#1
I have this two channel Equalizer: Amazon.com: Marathon Eq-231 Stereo Dual 31 Band Graphic Equalizer: Musical Instruments I know the titles says "Stereo," but it doesn't work the way I need it to.

It is nice, I got it for free, but it only sends a mono signal. If I run my iPod into it, I get the left channel, even using stereo 1/4" cable, I just get left in both speakers, no pan from the recording.

I tried to fix this by buying new 1/4" stereo inputs and outputs and soldered them into the circuit board, but I still get just the left signal in both speakers. Is there something else I can do to try to get true stereo panning? Or is the piece just wired in a way which would essentially make it impossible to get a true stereo signal.
 
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#3
If it's not setup to use stereo jacks than putting them in the eq won't make a difference.

Does the eq have two independent inputs for each channel?
image.jpg
If so you need a cable that goes from 1/8th for the iPod to a 2 separate 1/4" (left and right) like this one in the picture
 
#5
lavmonga said:
I think this is the answer. It has one 1/4" input and one XLR, so the splitter won't work. I think i'm just stuck with it as is. It was free anyway.
Click to expand...
Pay attention ... the EQ unit has TWO mono channels which can be cabled up as either two different mono channels or one channel for stereo Left and the other for stereo Right. You cannot run stereo into a single EQ input because the unit can't do stereo on a single channel. So the y-cable will indeed work, and the L/R stereo channels are EQ'd separately.
 
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#6
Yep. Send Left to one channel and Right to the other. Easy. Sending Left and Right to Channel1 only will result in a messed up mono signal. A Stereo 1/4" isn't really stereo. It can be but it depends on what you plug it into. it can be a mono balanced signal, or 2 mono unbalanced signals. You iDevice sends 2 mono signals (Left and Right). The EQ accepts one mono signal per channel. You need to send the iPod to 2 separate EQ channels.
 
#7
RustyAxe said:
Pay attention ... the EQ unit has TWO mono channels which can be cabled up as either two different mono channels or one channel for stereo Left and the other for stereo Right. You cannot run stereo into a single EQ input because the unit can't do stereo on a single channel. So the y-cable will indeed work, and the L/R stereo channels are EQ'd separately.
Click to expand...

Thanks. I am paying attention, but with a 21 band EQ, I'm not really looking to use 42 frequencies to listen to music and EQ each channel independently. I was looking to get the stereo signal through one channel and EQ in that single channel and have the EQ settings affect both L and R overall. Thanks for your help, everyone.
 
#8
lavmonga said:
Thanks. I am paying attention, but with a 21 band EQ, I'm not really looking to use 42 frequencies to listen to music and EQ each channel independently. I was looking to get the stereo signal through one channel and EQ in that single channel and have the EQ settings affect both L and R overall. Thanks for your help, everyone.
Click to expand...
Some EQ's will have a link feature. Still 2 signals. If you want to affect them and keep it two signals there'll be two EQ's.
 
#9
OP, Study the back panel of your link. It has separate inputs and outputs for both L&R channels with 21 bands of EQ for each track. You need the cable that Rusty posted above. It is hard to see in Rusty's photo but make sure the 1/8 plug is a stereo 3 pole jack that splits into two 1/4 inch mono jacks. If the 1/8 jack in only two poles then you will get mono only playing out of one side.
 
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