Neutrik NA2 M-J-TX

I tested it with a guitar and with a keyboard. It cut the hi freq. in a very evident way. I compared to a BSS and to a Rupert Neve DI boxes and it is not usable in my opinion. The Palmer DI is much better!
I found a good usage decoupling the sub-woofer of my home theater system. There was an humm caused by a ground loop. I lifted the gnd modifying the wires in the connector and It is perfect for that usage. ;-)

Fantastic little adapter. Very useful in all sorts of scenarios.

This is a great alternative to a DI box and is a lot more compact.
I run my pedalboards on batteries and don't need a ground lift switch so this works perfectly as it also doesn't lower my volume like a passive DI.
There's also protection for my effects with a TRS output. I previously used TRS to XLR adapters, but then learned I could actually get them fried if the sound guy sends me phantom power. There is no concern with this product due to it having the transformer and the jack being a TS one which cannot carry phantom power.

I got it for my really noisy Electribe SE. However it ended further in the chain, between the zoom r16 (used as audio interface) and monitor. Completly eliminating the ground hum on other amps connected with signals on the Zooms inputs. A must have for setups with multiple amps.

Super compact adapter, everyone is surprised by the size.
Great connectors, as expected by Neutrik. Plug connector is locking.
I think this thing will handle some serious abuse.

Works fine with line signals, active guitars and pedalboards. Case opens up into two halves for easier access to internals. Quite lightweight too.