Shure HPACA1 Replacement Cable earthquaker An internal jumper can select

An internal jumper can select if the insert jack always has an output signal or not

"Negative" means in this connection simply that the TRASIN/TRACOS waves will stop when the linear control voltage reaches 0V and continue with the opposite directions as the linear control voltage becomes negative and vice versa

and talk back to your drummer—all from your desktop

It’s in fact an analog computer with a temporal dimension

which delivers professional-quality sound wherever you need it – in project and music studios

Shure HPACA1 Replacement Cable earthquaker An internal jumper can selectShure HPACA1 Replacement Cable. Cable replaces damaged cable for the SRH line of professional headphones, including the SRH440, SRH840, SRH940, and SRH750DJ models.