Can anyone tell me what converter I need to go from RCA to "Balanced audio"?

Can anyone tell me what converter I need to go from RCA to "Balanced audio"?

Posted Mar 15, 2022, 10:30 PM UTC

214
editjamesOPmarantz 2275, marantz 6300, JBL l100•

I recently bought this BLONDER TOUNGUE AM SERIES AM60-450A 59414 AGILE MODULATOR. It broadcasts video into some vintage TVs I have collected. Super fun! I can get picture working fine but I'm confused on what I'll need to go from RCA -> What is pictured. Any tips?

2
LordShongo•

An example of a balanced audio cable would be the cable with 1/8” tip ring sleeve (TRS) connectors that people would use in the car to send the music from an iPod or pre-lightning iPhones to the car stereo ‘aux’ input. Any TRS cable is “balanced”. It basically has two “signal wires” inside (in this case, one for left connection and one for right connection) as well as a 3rd wire (usually the cable’s shielding) for connecting to ground. RCA cables are generally unbalanced, as there are just 2 signal wires (one for left and one for right).

You probably could get away with cutting the rca connectors off one end of the cable and plugging the connectors into the tv and using the cut end’s wires to connect to “balanced audio”.

1
ChipChester•

Sorry, but u/LordShongo is incorrect on what 'balanced audio' is. However, his specific connection will work.

Wiki tells all.

5
ShutterBun•

Basically he should have said “just cut & strip the RCA wires and screw em on”.

1
LordShongo•

Did I actually NEED to describe a balanced audio cable? No, I did not. But when I replied to this I was quite tired from back to back long shifts at work and often times my thoughts get kind of scattered when I’m in that mental state. Next time I’ll just keep scrolling and save everyone from my efforts.

1
LordShongo•

I wasn’t attempting to explain the theory behind balanced audio. I was literally just trying to describe a balanced audio cable. “A TRS (tip, ring, sleeve) cable. Basically a cable with two signal wires and a ground wire inside.” I’m humble enough to admit when I’m wrong but I’m pretty sure this accurately describes a balanced audio cable. If it does not, then perhaps you can enlighten me as to why that wouldn’t be a balanced audio cable so I can go ahead and stop using TRS and XLR cables on connections that require ‘balanced’.

1
somitomi42•

I think what makes a balanced cable (aside from the qualities you described) is that it carries a balanced signal. For example I wouldn't say a headphone wire is balanced, since the two signal conductors carry two different signals. Of course if you have a cable with TRS jacks on both ends, it can be used for either. I don't really know the equipment in question, but to me it seems like it's expecting a balanced signal (although it will of course work with an unbalanced input), so I think it's worth clarifying that a TRS cable alone doesn't make the signal balanced.

1
LordShongo•

Yes, a cable with Trs on both ends is what I was attempting to describe. I guess more or less to get the point across that if he’s coming out of something via RCA cables, it’s not going to be balanced. I should’ve just forgone the entire confusing, rambling crap that my overworked brain was trying to string together in the first part and jumped to the solution I provided the guy which, apparently worked out just fine for him. I just need to remember that when I’m in a foggy mental state, it best to put the phone down, don’t internet anymore, get some rest instead cuz there is such a thing as ‘TMI’ and when combined with any amount of incoherence on a Reddit reply, well….most often times it’s: ‘Knives Out’. Oh no, I’m doing it again. 🤦🏻‍♂️

1
GamerDotNinja•

Yeah, search Amazon for “rca to speaker wire cable”. Hooking the positive of the channel (right or left) to the corresponding post (hold down screw), then both of the channel’s negative wires to the ground post should get you what you are looking for.

3
editjamesOPmarantz 2275, marantz 6300, JBL l100•

Thank you! This worked very well!

1
LordShongo•

Sweet! I was gonna say, it might have some “hum” to the sound but, I imagine it always does with that old gear!

1
indcrightnow•

Using the ground should quiet that hum.

1
ShutterBun•

What are you even talking about? You’re way off.

0
jonbmet•

Complete shot in the dark, but I think you need a DI box of some variety. Taking an educated guess this thing is mono which means you need a DI box meant for a guitar.

You'll need a RCA to 1/4" TS adapter to go from your audio source to the DI box and XLR from the DI box to the modulator.

mono source --> RCA to 1/4" TS --> DI BOX --> XLR to stripped wires --> modulator.

1