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Re: Connecting Behringer UMC204HD to mixing desk/multitrack

Postby James Perrett » Thu Mar 25, 2021 3:24 pm

If you need that length then go for it. Around here, cables that are too long get draped behind the back of the desk and end up coiled amongst all kinds of other things - some that have big transformers or switch mode power supplies in them. Not a problem for well screened balanced cables but not so good for cheaper unbalanced cables.
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Re: Connecting Behringer UMC204HD to mixing desk/multitrack

Postby garrettendi » Thu Mar 25, 2021 3:26 pm

I've had a look at the distance, and tbh I don't think as it stands now 6m will be even long enough anyway.

I'll get the 3m one. The Tascam isn't uber-portable, but I'm quite happy to move it onto the floor by the PC when I come to need to, which won't be very often anyway.

So with that in mind, should I go for the 3m RCA-TS or the 0.6m RCA-XLR?
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Re: Connecting Behringer UMC204HD to mixing desk/multitrack

Postby James Perrett » Thu Mar 25, 2021 3:52 pm

I'd go for the 3m RCA to TS. They're useful for all kinds of different things and 3m is a handy length.
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Re: Connecting Behringer UMC204HD to mixing desk/multitrack

Postby garrettendi » Thu Mar 25, 2021 3:52 pm

Cheers James, your advice is appreciated! :thumbup:
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Re: Connecting Behringer UMC204HD to mixing desk/multitrack

Postby Hugh Robjohns » Thu Mar 25, 2021 4:22 pm

I wouldn't get RCA-phono to XLR. Too big a risk of sending phantom power into your interface, and you might also overload the mic input preamp too. RCA-Phono to TS plug is a much better bet.

But if you really need 6m cables, the chances are the source and destination computers are plugged into different wall sockets, so ground-loop hums are highly likely with an unbalanced cable. In which case, a line isolating transformer (or reamp box) might be required...

...Better still, get TRS-TRS cables and use the balanced Main Output of the replay interface into a balanced line input on the recording interface. That would massively reduce the risk of ground-loop noises and interference.
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Re: Connecting Behringer UMC204HD to mixing desk/multitrack

Postby garrettendi » Thu Mar 25, 2021 4:49 pm

Hugh Robjohns wrote:...Better still, get TRS-TRS cables and use the balanced Main Output of the replay interface into a balanced line input on the recording interface. That would massively reduce the risk of ground-loop noises and interference.

I already have a TRS cable and the amp sim is mono, so it makes sense to utilise what I have then, and use the Main Out on the back as you say.

Is there a likely issue with the UMC's Main Out being too "hot"?

EDIT: What do you mean by "replay" interface?

EDIT 2: The Main Outs are for powered speakers?
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Re: Connecting Behringer UMC204HD to mixing desk/multitrack

Postby Hugh Robjohns » Thu Mar 25, 2021 4:54 pm

garrettendi wrote:I already have a TRS cable and the amp sim is mono, so it makes sense to utilise what I have then, and use the Main Out on the back as you say.

It does... if you're not using the main out for something else (and/or can reassign it (temporarily).

Is there a likely issue with the UMC's Main Out being too "hot"?

Nope. It's just standard line level. So it will be fine feeding a balanced line level input.

EDIT: What do you mean by "replay" interface?

The one making the noises, as opposed to the one recording the noises.
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Re: Connecting Behringer UMC204HD to mixing desk/multitrack

Postby garrettendi » Thu Mar 25, 2021 4:55 pm

Hugh, you have just saved me £6 and given a better solution!

Thank you kindly!
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Re: Connecting Behringer UMC204HD to mixing desk/multitrack

Postby Hugh Robjohns » Thu Mar 25, 2021 5:03 pm

Excellent... let's split the difference and you send me a £3 note in the post for my pension fund... :lol:
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Re: Connecting Behringer UMC204HD to mixing desk/multitrack

Postby garrettendi » Thu Mar 25, 2021 5:04 pm

Hugh Robjohns wrote:Excellent... let's split the difference and you send me a £3 note in the post for my pension fund... :lol:

Tell you what: if we're ever down the pub together your next pint is on me
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Re: Connecting Behringer UMC204HD to mixing desk/multitrack

Postby Hugh Robjohns » Thu Mar 25, 2021 5:05 pm

:thumbup: Sounds like a fair deal! ...but what is this thing called a 'pub' that you speak of ?
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Re: Connecting Behringer UMC204HD to mixing desk/multitrack

Postby garrettendi » Thu Mar 25, 2021 8:59 pm

Hugh Robjohns wrote::thumbup: Sounds like a fair deal! ...but what is this thing called a 'pub' that you speak of ?

They had them in the old days. I dunno I can’t remember that far back!
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Re: Connecting Behringer UMC204HD to mixing desk/multitrack

Postby garrettendi » Wed Apr 14, 2021 1:24 pm

Hi Hugh, quick follow up.

I did some online digging and a page on the interweb said connecting speaker outputs to a mixer can permanently destroy the mixer.

The UMC204HD manual says the Main Outs L/R are balanced line level outputs for powered speakers, and the Tascam DP24SD accepts Line inputs through TRS.

So I'm confused. The interweb says speaker outputs can't be connected to mixers, but the manual says it is a line out which I'm assuming means you are right (as always!) that it can connected to the Tascam?

Sorry for the basic question!
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Re: Connecting Behringer UMC204HD to mixing desk/multitrack

Postby blinddrew » Wed Apr 14, 2021 1:58 pm

The 'speaker outputs' that could destroy a mixer are the outputs from an amplifier going to a passive speaker. These are outputs that aren't just carrying the signal voltage, they're carrying the power to drive a loudspeaker. Very different kettle of fish.

Your line level outputs from the interface are absolutely fine going into the line inputs on the tascam.
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Re: Connecting Behringer UMC204HD to mixing desk/multitrack

Postby garrettendi » Wed Apr 14, 2021 1:59 pm

Thanks Drew. After posting the question I suspected that would be the case.

As usual, my anxiety got in the way of my logical thinking.

Apologies, all!
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