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  #1  
Old 04-26-2020, 03:28 PM
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Default XLR versus TS

I just bought a PreSonus 26c interface to replace my MBox3.

I'm connecting the interface to a PreSonus BlueTube preamp.

When connecting the inerface to the preamp does it make any difference whether the connection to the from the interface is TS or XLR?

I've always used an unbalanced 1/4" TS Male to 3-Pin XLR female audio cable.

Would it be better to use an XLR M to XLR F microphone cable?

(I have to replace the XLR to TS cables I was using because they're too short .)
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  #2  
Old 04-26-2020, 03:40 PM
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Default Re: XLR versus TS

TS is unbalanced (2-wire) and XLR is balanced (3-wire) so obviously you better use balanced connections.
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Old 04-26-2020, 04:05 PM
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Default Re: XLR versus TS

Thanks. I was confused because I always used TS --> XLR with the MBox. I've attached a connection diagram.

It's a bit of a PITA because the inputs on the MBox were front and rear; on the PreSonus they are front only, which means I have to go around to the back to connect to the preamp. That's why I have to replace my cables.
Attached Files
File Type: pdf 2020_0426_interface-preamp-hp amp connection.pdf (227.3 KB, 0 views)
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Old 04-26-2020, 04:06 PM
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Default Re: XLR versus TS

From that pic you cannot tell if it is TS (2-wire) or TRS (3-wire)
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Old 04-26-2020, 04:12 PM
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Default Re: XLR versus TS

Thanks for your help.

It accepts either (like a guitar jack or an XLR mic cable). Maybe you can tell on this.

It was the same type of connection on the MBox and I always used TS out of the MBox and XLR into the preamp.
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File Type: jpg 26C front.JPG (22.5 KB, 0 views)
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Old 04-26-2020, 04:15 PM
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Default Re: XLR versus TS

That looks like a Neutrik combo XLR/TRS connector so whatever you choose you should have balanced (3-wire) option
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Old 04-26-2020, 05:11 PM
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Default Re: XLR versus TS

The 26c line inputs are accessed via the TRS part of the combo jack. The XLR part is mic level only. Therefore, the appropriate cable from the preamp to the interface should be XLR-TRS.
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Old 04-26-2020, 05:16 PM
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Default Re: XLR versus TS

Are you sure?

Those look like Neutrik combo connectors which mean they only have 3 pins out of the connector, not 6 -- so whatever you plug in is electrically just the same. Software changes between mic/line/inst levels
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Old 04-26-2020, 05:36 PM
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Default Re: XLR versus TS

Off topic:
One pluss for TRS over XLR: on a TRS patchbay output you can insert the jack half way and not break the flow thru the patchbay, like a "tap".
Added: TRS inserts on audio interfaces and mixing desks also work this way. It provides a kinda "secondary output" for the channel that can be very useful, and I think many aren't aware of it.

Last edited by Ben Jenssen; 04-28-2020 at 05:38 PM.
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Old 04-26-2020, 06:05 PM
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Default Re: XLR versus TS

Thanks for the clarification. I changed my order to TRS, which is what I've been using in this context for years.
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Pro Tools 2020.3, PreSonus 26C, PreSonus Bluetube v2, PreSonus HP4, JBL LS305 monitors, Sennheiser HD 650 headphones

Last edited by dg27; 04-26-2020 at 07:07 PM. Reason: typo
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