[c0rp1]

Can someone help me figure out what these cables are for?

They were added as an extra to an used headphone AMP I purchased recently. One seems to be just a 2.5mm to 4 pin male XLR adapter, the other is a 2.5mm to double 3 pin male XLR cable.

Thank you in advance!

 

[GREQ]

The one on the left is for adapting from balanced headphone wiring to a normal stereo output.
The one on the right looks like a 4-pin XLR, not 3-pin as stated... so I think it is so you can plug a normal TRS termination into an XLR output (like the Schiit Mjolnir).

 

[ProtegeManiac]

Can someone help me figure out what these cables are for?

They were added as an extra to an used headphone AMP I purchased recently. One seems to be just a 2.5mm to 4 pin male XLR adapter, the other is a 2.5mm to double 3 pin male XLR cable.

Thank you in advance!

The one on the left allows you to use a portable amp with a 4-pin (3 black band) 2.5mm balanced drive output with a headphone that you normally use with an older, 2x3-pin XLR balanced output headphone amp.

The one on the right allows for hooking up to a newer 4-pin XLR balanced output amp on the XLR end and maybe a 4-pin 2.5mm balanced drive ready headphone. Assuming the 2.5mm is 4-pin, that's for using a headphone or IEM you have wired up to run balanced off a newer portable balanced amp (since the older ones used the 6-pin round Hirose or the 4-pin square one) on a newer 4-pin XLR balanced output desktop amp.

 

[c0rp1]

Thanks to both for the answers. Guess they are extremely specific, so would be pretty hard to sell, right? Any idea of their value?

 

[ProtegeManiac]

Thanks to both for the answers. Guess they are extremely specific, so would be pretty hard to sell, right? Any idea of their value?

Can't guess but I'd ask the seller how much he paid for them and what materials were used. That should give you the ballpark figure for how much to try to sell them and info to help sell them.

 

[PointyFox]

The one on the right I'm pretty sure uses a 2.5 mm (or more rarely 3.5 mm) balanced female jack. I have a 3.5 mm one. Used it for plugging a 3.5 mm balanced cable into a balanced amp output. They typically cost around $20-26 which is overpriced in my opinion. The cable on the left has some odd "directional" plugs and a Chinese "carbon fiber" connector and splitter. Cables are hard to appraise since people charge whatever they feel like for them and can make ridiculous claims.