Works as advertised. Good value for the money. I have no idea about the durability of this device since I haven't used it very long.

Correspond bien à mon besoin.

The quality of on these is good. I bought myself a couple to use with JRF contact microphones and occasionally Korg CM300 that I use for similar purposes to gather sound effects etc.The sound quality is good, adding plenty of lower end to the sound which you otherwise wouldn’t get from contact based microphones due to their high impedance. These allow for impedance matching so that you can get the best sound from piezo based contact microphones.These are good value - and I say this having used them for a while now with them still working.I’ve seen people have concerns over the quality in other reviews, but I’ve had these for a lengthy time and used them extensively and so far they are still in tact. I may be lucky, or others may have been unlucky perhaps, but the quality seems good to me.They do exactly what I need them to and are nice and portable for taking out in the field.

Used it for portable music workstation xlr output to PA system.

Did exactly what was needed, well built and will last a long time.