These are analog so there is no driver. single green plug. Dell A525 speaker setup integrates an audio power amplifier in the woofer. These speakers have a 3.5 mm auxiliary analog connection, which is supported by a 9-pin output from the subwoofer and one input to the speaker from the PC. [URL]#   [URL] [IMAGE]  
Hi I have a set of Dell A525 speakers+subwoofer, These are *ancient* - possibly over 10 years old and used with at least one prior PC. They are no longer are even mentioned on the Dell support website. They have a Zylux-made but Dell-branded subwoofer, which I'm told has pretty good sound. I usually listened to the PC through headphones (..while we had children in the house!...) so I only just noticed a problem: the subwoofer is dead. You're probably going to say "it's old and it died" but before I replace the speakers I'd like to make sure it's not some other problem.  So here's what you need to know: 1. The PC is a 6+ yr old XPS 8700 i7 with latest Windows 10 and everything is working fine with Windows. (I'm technically competent with 40+ years in IT and I know the hardware, OS and software are all absolutely fine.) 2. The OS correctly identifies the sound card and output ("Realtek High Definition Audio") but does not separately identify the speakers. I'm sure that this is as expected for a simple audio jack connection. 3. The desktop speakers are powered from the subwoofer and they are working perfectly (Lights on, plenty of sound, correct channels, no buzzing, fully controllable, etc etc.). Wiring is [green audio jack->subwoofer->desktop speakers] 4. The subwoofer is completely silent. I seem to remember when I first got it that it gave a low mains hum but that is now absent. 5. The O-N switch on the subwoofer is definitely in the O-N position. (Actually, it's a dial and I've set it to mid range.) So, two question: Firstly, does anyone have a PDF manual for these speakers that they can send to me? Secondly, does W10 need any sort of additional driver or other utility to recognize the subwoofer? Thanks in anticipation for any help. Steve
A525 speakers, driver needed?