Hosa XVM-110M Right Angle 3.5mm TRS to XLR3M 10 Ft

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• Are great for connecting the stereo output of portable CD Player, Walkman, Camcorder, etc., to a single XLR line input on a mixing console.
• Sums Left and Right Stereo signals to a single mono feed.

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This does the job, linking a Shure mic to a Canon video camera. The 10ft length is just about right for most of the interviews I shoot.

This is a simple product that works as expected. I can't think of anything I'd change!

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Used to hook a laptop up to the sound system of an older church for my wedding. The sound quality was great and the wedding went well!

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I thought I was going to have to cobble together various cords and plugs until I found this great product. I bought two of them, and I we use them to play instrument apps on the iPhone and iPad. The length is just right for using on stage. The sound quality seems to be good. I also use it to play my iTunes music through the sound system. The right angle is very helpful if, like me, you are holding the device during use. It greatly reduces the risk of cord damage. Excellent product.

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Plugged the XLR end into the sound board and 3.5mm into my iPhone and works like a champ.

I bought these because I needed something to go from a 3.5 mm TRS (tip-ring-sleeve) connector to XLM male so far, so good. However, in my particular application, the 3.5 mm jacks that I am using (and with which these will ultimately mate) carry a balanced signal, as do MOST TRS connectors. Labeling a connector "TRS" implies that it is meant for a balanced signle-channel signal. Granted, normally, 3.5 mm-style connectors are used to carry two-channel unbalanced signals (i.e. 'stereo' signals), and my use of the 3.5 mm jacks with which these are to mate is a bit unconventional, but in my particular application, I used 3.5 mm TRS jacks to carry balanced audio signals due to space constraints in the installation.

Enough of that...back to "the item'.

So... in a TRS connector, the tip (T) carries the V(+), the ring (R) carries the V(-), and the sleeve (S) is the gound to which both channels are referenced; this is the reason that it is known as a balanced signal, because the signals on pins 2 and three are the same as one another, but 180 degrees out of phase. HOWEVER, these connectors, while they do indeed have three conductors coming from the 3.5 mm TRS connector, do NOT mate 1:1 with the same pins on the XLR male. That is, if it were wired 1:1 the tip (T) of the 3.5 mm would be tied to pin 2 of the XLR, the ring (R) of the 3.5 mm would be tied to pin 3 of the XLR, and the sleeve (S) of the 3.5 mm connector would be tied to pin 1 of the XLR. The cable is wired with the signal from the tip (T) and the signal from the ring (R) mating to pin 2 on the XLR; the sleeve (S) part of the 3.5 mm TRS mates with pins 1 AND 3 of the XLR.

So, if you are expecting to use this as a connector to adapt a signal obtained from a 3.5 mm TRS connector to a XLR connection you will not get a balanced signal out of the XLR it's not physically (electrically) possible.

I think this product is really mis-labeled, because this is clearly designed to take a two-channel unbalanced signal from something like an mp3 player and (kinda-sorta-mostly-in-a-way-but-not-really) yield a signal that is compatible with an XLR female input; normally, and almost universally, an XLR female implies that a balanced (not a single-ended) signal will be fed to that input. These should really be labeled as 'stereo 3.5 mm to XLR male' as that would be more accurate.

Still, to simply tie the left and right channel outputs of an mp3 player together (or ANY output for that matter) is really a bad idea, because you are effectively shorting the left and right channels together in an attempt to sum them to a single-channel signal if the XLR connector barrel had some reasonably-valued dropping resistors connected to pin 2 and to pin 3, and then the other side of those resistors connected to the tip and ring signals, then you would have a summer (a simple mixer), but that's not what's been done here.

Mind you, this can all be remedied with some small wire-cutters, a soldering iron, and some time. Frankly, I bought these thinking that they really were TRUE TRS to XLR (1:1) and this was a bit cheaper than I could make them; I would not have to spend my time building them myself. As it is, it's a bigger hassle to send them back for a refund / exchange, so I will simply modify them to make them a true 1:1 3,5 mm TRS to XLR connector. That is, I will re-solder the XLR connectors such that:

(This is how they SHOULD be wired):

XLR pin 1 = SHIELD TRS

XLR pin 2 = TIP TRS

XLR pin 3 = RING TRS

Again, just to clarify, this (described below) is how these ARE wired (and shipped) by HOSA and this is NOT the correct way to wire this:

XLR pin 1 = SHIELD TRS

XLR pin 2 = TIP TRS, RING TRS

XLR pin 3 = SHIELD TRS (and therefore, pin 1 XLR = pin 3 XLR).

Clear as mud?