Precue doesn't work in Hercules DJ Impulse 500

Bug Reports
1

My Hercules Inpulse 300 dead and I bought a Inpulse 500. All work good but when I push precue button (deck 1 or 2) i can’t hear the track.

I push master button and I hear the music, but with the precue button i can’t hear. The button have light when I push this. I think this is a mapping problem. I reviewed this but don’t view anything…

I have a gig this weekend…

2
  1. How are these knobs set on your controller?

Screenshot 2026-07-07 at 12.02.33 PM
Screenshot 2026-07-07 at 12.02.33 PM100×204 21.3 KB

  1. Check the pre-cue settings in the software. With some controllers, the software pre-cue settings operate independently from the hardware knobs.

Screenshot 2026-07-07 at 12.09.18 PM
Screenshot 2026-07-07 at 12.09.18 PM255×246 16.1 KB

4

Hercules 500 works fine. That was my forst controller back in 2019/2020 - i had no issues using it with djay pro at the time. Check sertings (or reset devices settings to default

5

Thanks for the assists @Michael_Wisniewski and @Armigo. I appreciate it!

Hi @jnavarrotf, did the above information help solve your issue?

6

Hello! It’s been a week since my last reply. I’m going to consider this topic completed for now so I can focus on others. However, please feel free to respond and we can definitely revisit this. Thanks!

8

Inpulse DJ 500 work good in iPad but the not in Mac OS.

9

Hi again @jnavarrotf, please share your complete setup details with actual version numbers to help us troubleshoot this further.

Device Model (ex. 2020 iPad Air 4th Gen):
Version of operating system (ex. iOS 17.3.1):
Version of djay (ex. 5.1.3):
Hardware/controllers used (ex. Reloop Ready):
Hardware Firmware Version:

  1. How exactly are you connecting the device to your Mac? Have you tried a different cable?
  2. With the controller connected to your Mac, please share screenshots of your djay Settings → Devices page, and MIDI → Configure Impulse 500… page.
10

Hello. My setup is this:

iPad 10th gen (iOS 18.5)
Macbook Air M3 (Mac OS 26.5.2)
Djay 5.6.7 in both OS
Controller Inpulse 500.
Hardware firmware: the Last.
Connect: i use the same dongle. Ugreen hub.

Inpulse 500
Inpulse 5001920×1205 193 KB

11

Thanks for the details and the screenshot, @jnavarrotf. Your MIDI mapping looks correct — the cue buttons are assigned to Deck 1: Monitor Active and Deck 2: Monitor Active, so this isn’t a mapping problem. Since it works on your iPad with the same controller, it points to the audio routing on the Mac side.

  1. On the Mac, open Settings > Devices and click Reset to Defaults — this restores djay’s correct routing for your controller.
  2. Confirm Pre-cueing is set to the Inpulse 500 (on a different channel pair than Main Output), then click Apply.
  3. Click the headphones icon in the toolbar and make sure Cue/Mix isn’t turned fully toward the main mix. [screenshot: pre-cueing panel]

I hope that helps!

13

I review these and reset the device and continue the problem. I don’t know anything… I will try in a before Mac.

14

Thanks for the follow up @jnavarrotf. I have some additional questions to help troubleshoot this further.

  1. When you press the deck cue button, do you hear nothing at all, or do you hear the main mix instead of the cued deck?
  2. Where are the headphone Volume and Cue/Mix knobs set on the controller?
  3. Please share a screenshot of Settings > Devices on the Mac with the Inpulse 500 connected — specifically Mixer Mode, Main Output, and Pre-cueing.
  4. Does pre-cueing work if you connect the Inpulse 500 directly to the MacBook Air, bypassing the UGREEN hub?
  5. Is Mixer Mode set to Internal or External on the Mac?